[SOLVED] Quick fix Konica-Minolta C250i list error codes

[SOLVED] Quick fix Konica-Minolta C250i list error codes

– Compatible Printer model: Konica-Minolta bizhub C250i
– Konica-Minolta bizhub C250i Error Codes with quick guides:

• Code: 10-01, 10-02, 10-40
• Description: Misfeed at manual bypass paper feed section
  10-01 The leading edge of the paper is not turned ON (unblocked) the registration sensor (PS1) even after the lapse of a given period of time after the manual bypass tray starts to feed paper.
  10-02 For paper fed from the manual bypass tray, loop forming has not been complete before a sheet enters the registration roller because the rise timing of load to perform registration is earlier than the rise timing of load to form a loop.
  10-40 For paper fed from the manual bypass tray, the image write start signal permit continues to be disabled for a predetermined period of time after the timing of the image write start signal output.
• Causes: • Transport motor (M1) • Registration clutch (CL4) • Bypass tray paper feed clutch (CL7) • Bypass tray lift-up solenoid (SD1) • Bypass tray pick-up roller solenoid (SD6) • Registration sensor (PS1) • Base board (BASEB)
• Troubleshooting Guides: 1 Initial check items – – 2 PS1 I/O check, sensor check BASEB CN15E-9 (ON) 4-C 3 CL4 load check • Check code: 21 • Multi code: 2 BASEB CN15E-2 (ON) 3-C 4 CL7 load check • Check code: 20 • Multi code: 3 BASEB CN26EA-12 (ON) 10-K 5 SD1 load check • Check code: 23 • Multi code: 3 BASEB CN26EA-9 (ON) 10-K 6 SD6 load check • Check code: 23 • Multi code: 3 BASEB CN26EA-7 (ON) 10-K 7 M1 load check • Check code: 40 • Multi code: 1, 4, 5 BASEB CN19EA-1 to 5 1-C 8 Replace BASEB.

• Code: 11-01, 11-02
• Description: Misfeed at tray 1 paper feed section
  11-01 After the tray 1 starts to feed paper, the registration sensor (PS1) is not turned ON (unblocked) even after the lapse of a given period of time after the leading edge of the paper has turned ON the tray 1 paper feed sensor (PS23). 11-02 For paper fed from the tray 1, loop forming has not been complete before a sheet enters the registration roller because the rise timing of load to perform registration is earlier than the rise timing of load to form a loop.
• Causes: • Transport motor (M1) • Tray 1 paper feed clutch (CL3) • Registration clutch (CL4) • Paper feed roller fast clutch (CL10) • Registration sensor (PS1) • Tray 1 paper feed sensor (PS23) • Base board (BASEB)
• Troubleshooting Guides: 1 Initial check items – – 2 PS1 I/O check, sensor check BASEB CN15E-9 (ON) 4-C 3 PS23 I/O check, sensor check BASEB CN23E-2 (ON) 15-K 4 CL3 load check • Check code: 20 • Multi code: 1 BASEB CN26EA-20 (ON) 11-K 5 CL4 load check • Check code: 21 • Multi code: 2 BASEB CN15E-2 (ON) 3-C 6 CL10 load check • Check code: 20 • Multi code: 4 BASEB CN27EA-2 (ON) 13-K 7 M1 load check • Check code: 40 BASEB CN19EA-1 to 5 1-C • Multi code: 1, 4, 5 8 Replace BASEB.

• Code: 11-05, 11-40
• Description: Misfeed at tray 1 paper feed section
  11-05 The leading edge of the paper is not turned ON the tray 1 paper feed sensor (PS23) even after the lapse of a given period of time after the tray 1 starts to feed paper. 11-40 For paper fed from the tray 1, the image write start signal permit continues to be disabled for a predetermined period of time after the timing of the image write start signal output.
• Causes: • Transport motor (M1) • Tray 1 paper feed clutch (CL3) • Registration clutch (CL4) • Paper feed roller fast clutch (CL10) • Registration sensor (PS1) • Tray 1 paper feed sensor (PS23) • Base board (BASEB)
• Troubleshooting Guides: 1 Initial check items – – 2 PS1 I/O check, sensor check BASEB CN15E-9 (ON) 4-C 3 PS23 I/O check, sensor check BASEB CN23E-2 (ON) 15-K 4 CL3 load check • Check code: 20 • Multi code: 1 BASEB CN26EA-20 (ON) 11-K 5 CL4 load check • Check code: 21 • Multi code: 2 BASEB CN15E-2 (ON) 3-C 6 CL10 load check • Check code: 20 • Multi code: 4 BASEB CN27EA-2 (ON) 13-K 7 M1 load check • Check code: 40 BASEB CN19EA-1 to 5 1-C • Multi code: 1, 4, 5 8 Replace BASEB.

• Code: 12-01, 12-05, 12-40
• Description: Misfeed at tray 2 paper feed section
  12-01 After the tray 2 starts to feed paper, the tray 2 vertical transport sensor (PS19) is not turned ON even after the lapse of a given period of time after the leading edge of the paper has turned ON the tray 2 paper feed sensor (PS20).
  12-05 The leading edge of the paper is not turned ON the tray 2 paper feed sensor (PS20) even after the lapse of a given period of time after the tray 2 starts to feed paper.
  12-40 For paper fed from the tray 2, the image write start signal permit continues to be disabled for a predetermined period of time after the timing of the image write start signal output.
  – Paper jam of a sheet of paper left at the tray 2 paper feed section results, if the tray 2 vertical transport sensor (PS19) is turned ON when the main power switch is turned ON, a door is opened and closed, or a misfeed or malfunction is reset.
  – Paper jam of a sheet of paper left at the tray 2 paper feed section results, if a sheet of paper is determined to exist at a position detected when the main power switch is turned ON, a door is opened and closed, or a misfeed or malfunction is reset.
• Causes: • Transport motor (M1) • Tray 2 paper feed clutch (CL1) • Tray 2 vertical transport clutch (CL2) • Tray 2 vertical transport sensor (PS19) • Tray 2 paper feed sensor (PS20) • Base board (BASEB)
• Troubleshooting Guides: 1 Initial check items – – 2 PS19 I/O check, sensor check BASEB CN23E-8 (ON) 15-K 3 PS20 I/O check, sensor check BASEB CN23E-5 (ON) 15-K 4 CL1 load check • Check code: 20 • Multi code: 2 BASEB CN23E-16 (ON) 16-K 5 CL2 load check • Check code: 21 • Multi code: 1 BASEB CN23E-19 (ON) 17-K 6 M1 load check • Check code: 40 • Multi code: 1, 4, 5 BASEB CN19EA-1 to 5 1-C 7 Replace BASEB.

• Code: 13-01, 13-05, 13-40
• Description: Misfeed at tray 3 paper feed section
  13-01 After the tray 3 starts to feed paper, the tray 3 vertical transport sensor (PS113) is not turned ON even after the lapse of a given period of time after the leading edge of the paper has turned ON the tray 3 paper feed sensor (PS112).
  13-05 The leading edge of the paper is not turned ON the tray 3 paper feed sensor (PS112) even after the lapse of a given period of time after the tray 3 starts to feed paper.
  13-40 For paper fed from the tray 3, the image write start signal permit continues to be disabled for a predetermined period of time after the timing of the image write start signal output.
  – Paper jam of a sheet of paper left at the tray 3 paper feed section results, if the tray 3 vertical transport sensor (PS113) is turned ON when the main power switch is turned ON, a door is opened and closed, or a misfeed or malfunction is reset.
  – Paper jam of a sheet of paper left at the tray 3 paper feed section results, if a sheet of paper is determined to exist at a position detected when the main power switch is turned ON, a door is opened and closed, or a misfeed or malfunction is reset.
• Causes: • Tray 3 paper feed motor (M111) • Tray 3 vertical transport motor (M112) • Tray 3 paper feed sensor (PS112) • Tray 3 vertical transport sensor (PS113) • PC control board (PCCB)
• Troubleshooting Guides: 1 Initial check items – – 2 PS112 I/O check, sensor check PCCB CN4-11 (ON) PC-116/PC-216 5 to 6-C 3 PS113 I/O check, sensor check PCCB CN4-14 (ON) PC-116/PC-216 5-C 4 M111 load check • Check code: 28 • Multi code: 11, 14, 15 PCCB CN5-1 to 8 PC-116/PC-216 4-C 5 M112 load check • Check code: 28 • Multi code: 21, 24, 25 PCCB CN5-9 to 16 PC-116/PC-216 3 to 4-C 6 Replace PCCB.

• Code: 14-01, 14-05, 14-40
• Description: Misfeed at tray 4 paper feed section
  14-01 After the tray 4 starts to feed paper, the tray 4 vertical transport sensor (PS123) is not turned ON even after the lapse of a given period of time after the leading edge of the paper has turned ON the tray 4 paper feed sensor (PS122).
  14-05 The leading edge of the paper is not turned ON the tray 4 paper feed sensor (PS122) even after the lapse of a given period of time after the tray 4 starts to feed paper.
  14-40 For paper fed from the tray 4, the image write start signal permit continues to be disabled for a predetermined period of time after the timing of the image write start signal output.
  – Paper jam of a sheet of paper left at the tray 4 paper feed section results, if the tray 4 vertical transport sensor (PS123) is turned ON when the main power switch is turned ON, a door is opened and closed, or a misfeed or malfunction is reset.
  – Paper jam of a sheet of paper left at the tray 4 paper feed section results, if a sheet of paper is determined to exist at a position detected when the main power switch is turned ON, a door is opened and closed, or a misfeed or malfunction is reset.
• Causes: • Tray 4 paper feed motor (M121) • Tray 4 vertical transport motor (M122) • Tray 4 paper feed sensor (PS122) • Tray 4 vertical transport sensor (PS123) • PC control board (PCCB)
• Troubleshooting Guides: 1 Initial check items – – 2 PS122 I/O check, sensor check PCCB CN18C-2 (ON) PC-216 7-K 3 PS123 I/O check, sensor check PCCB CN18C-5 (ON) PC-216 7-K 4 M121 load check • Check code: 28 • Multi code: 16, 19, 20 PCCB CN9C-1 to 8 PC-216 6-K 5 M122 load check • Check code: 28 • Multi code: 26, 29, 30 PCCB CN9C-9 to 16 PC-216 6-K 6 Replace PCCB.

• Code: 15-01, 15-40
• Description: Misfeed at external LCT paper feed section
  15-01 The leading edge of the paper is not turned ON the LU paper feed sensor (PS3) even after the lapse of a given period of time after the external LCT starts to feed paper.
  15-40 For paper fed from the external LCT, the image write start signal permit continues to be disabled for a predetermined period of time after the timing of the image write start signal output.
  – Paper jam of a sheet of paper left at the external LCT paper feed section results, if the LU paper feed sensor (PS3) is turned ON when the main power switch is turned ON, a door is opened and closed, or a misfeed or malfunction is reset.
  – Paper jam of a sheet of paper left at the external LCT paper feed section results, if a sheet of paper is determined to exist at a position detected when the main power switch is turned ON, a door is opened and closed, or a misfeed or malfunction is reset.
• Causes: • LU paper feed motor (M2) • LU paper feed sensor (PS3) • LU drive board (LUDB) • Base board (BASEB) • PC control board (PCCB)
• Troubleshooting Guides: 1 Initial check items – – 2 Make the pick-up roller load adjustment of the LCT. – – 3 PS3 I/O check, sensor check LUDB CN5-8 (ON) LU-302 4-G 4 M2 load check • Check code: 28 • Multi code: 41, 44, 45 LUDB CN4-5 to 8 LU-302 3-G 5 Replace LUDB. – – 6 Replace BASEB. – – 7 Replace PCCB. (PC-116/PC-216 / PC-416)

• Code: 16-01, 16-05, 16-40
• Description: Misfeed at transfer LCT paper feed/transport section
  16-01 After the transfer LCT starts to feed paper, the vertical transport sensor (PS133) is not turned ON even after the lapse of a given period of time after the leading edge of the paper has turned ON the paper feed sensor (PS132).
  16-05 The leading edge of the paper is not turned ON the paper feed sensor (PS132) even after the lapse of a given period of time after the transfer LCT starts to feed paper.
  16-40 For paper fed from the transfer LCT, the image write start signal permit continues to be disabled for a predetermined period of time after the timing of the image write start signal output.
  – Paper jam of a sheet of paper left at the transfer LCT transport section results, if the vertical transport sensor (PS133) is turned ON when the main power switch is turned ON, a door is opened and closed, or a misfeed or malfunction is reset.
  – Paper jam of a sheet of paper left at the transfer LCT transport section results, if a sheet of paper is determined to exist at a position detected when the main power switch is turned ON, a door is opened and closed, or a misfeed or malfunction is reset.
• Causes: • Paper feed motor (M131) • Vertical transport motor (M132) • Paper feed sensor (PS132) • Vertical transport sensor (PS133) • PC control board (PCCB)
• Troubleshooting Guides: 1 Initial check items – – 2 PS132 I/O check, sensor check PCCB CN4-11 (ON) PC-416 7-J 3 PS133 I/O check, sensor check PCCB CN4-14 (ON) PC-416 7-J 4 M131 load check • Check code: 28 • Multi code: 1, 4, 5 PCCB CN5-1 to 8 PC-416 5-J 5 M132 load check • Check code: 28 • Multi code: 6, 9, 10 PCCB CN5-9 to 16 PC-416 4-J 6 Replace PCCB.

• Code: 20-01, 20-02
• Description: Misfeed at vertical transport section
  20-01 The registration sensor (PS1) is not turned ON (unblocked) even after the lapse of a given period of time after the leading edge of the paper has turned ON the tray 2 vertical transport sensor (PS19).
  20-02 For paper fed from the tray 2, tray 3, tray 4, or LCT, loop forming has not been complete before a sheet enters the registration roller because the rise timing of load to perform registration is earlier than the rise timing of load to form a loop.
• Causes: • Transport motor (M1) • Tray 2 vertical transport clutch (CL2) • Registration clutch (CL4) • Registration sensor (PS1) • Tray 2 vertical transport sensor (PS19) • Base board (BASEB)
• Troubleshooting Guides: 1 Initial check items – – 2 PS1 I/O check, sensor check BASEB CN15E-9 (ON) 4-C 3 PS19 I/O check, sensor check BASEB CN23E-8 (ON) 15-K 4 CL2 load check • Check code: 21 • Multi code: 1 BASEB CN23E-19 (ON) 17-K 5 CL4 load check • Check code: 21 • Multi code: 2 BASEB CN15E-2 (ON) 3-C 6 M1 load check • Check code: 40 • Multi code: 1, 4, 5 BASEB CN19EA-1 to 5 1-C 7 Replace BASEB.

• Code: 20-21
• Description: Misfeed at vertical transport section (tray 3)
  <When PC-116 or PC-216 is installed> The tray 2 vertical transport sensor (PS19) is not turned ON even after the lapse of a given period of time after the leading edge of the paper has turned ON the tray 3 vertical transport sensor (PS113).
  <When PC-416 is installed> The tray 2 vertical transport sensor (PS19) is not turned ON even after the lapse of a given period of time after the leading edge of the paper has turned ON the vertical transport sensor (PS133).
  Paper jam of a sheet of paper left at the vertical transport section results, if a sheet of paper is determined to exist at a position detected when the main power switch is turned ON, a door is opened and closed, or a misfeed or malfunction is reset.
• Causes: <When PC-116 or PC-216 is installed> • Transport motor (M1) • Tray 3 vertical transport motor (M112) • Tray 2 vertical transport clutch (CL2) • Tray 2 vertical transport sensor (PS19) • Tray 3 vertical transport sensor (PS113) • Base board (BASEB) • PC control board (PCCB)
  <When PC-416 is installed> • Transport motor (M1) • Vertical transport motor (M132) • Tray 2 vertical transport clutch (CL2) • Tray 2 vertical transport sensor (PS19) • Vertical transport sensor (PS133) • Base board (BASEB) • PC control board (PCCB)
• Troubleshooting Guides: 1 Initial check items – – 2 PS113 I/O check, sensor check PCCB CN4-14 (ON) PC-116/PC-216 5-C 3 PS19 I/O check, sensor check BASEB CN23E-8 (ON) 15-K 4 CL2 load check • Check code: 21 • Multi code: 1 BASEB CN23E-19 (ON) 17-K 5 M112 load check • Check code: 28 • Multi code: 21, 24, 25 PCCB CN5-9 to 16 PC-116/PC-216 3 to 4-C 6 M1 load check • Check code: 40 • Multi code: 1, 4, 5 BASEB CN19EA-1 to 5 1-C 7 Replace BASEB. – – 8 Replace PCCB.
  When PC-416 is installed 1 Initial check items – – 2 PS133 I/O check, sensor check PCCB CN4-14 (ON) PC-416 7-J 3 PS19 I/O check, sensor check BASEB CN23E-8 (ON) 15-K 4 CL2 load check • Check code: 21 • Multi code: 1 BASEB CN23E-19 (ON) 17-K 5 M132 load check • Check code: 28 • Multi code: 6, 9, 10 PCCB CN5-9 to 16 PC-416 4-J 6 M1 load check • Check code: 40 • Multi code: 1, 4, 5 BASEB CN19EA-1 to 5 1-C 7 Replace BASEB. – – 8 Replace PCCB.

• Code: 20-22
• Description: Misfeed at vertical transport section (tray 4)
  20-22 The tray 3 vertical transport sensor (PS113) is not turned ON even after the lapse of a given period of time after the leading edge of the paper has turned ON the tray 4 vertical transport sensor (PS123).
  – Paper jam of a sheet of paper left at the vertical transport section results, if a sheet of paper is determined to exist at a position detected when the main power switch is turned ON, a door is opened and closed, or a misfeed or malfunction is reset.
• Causes: • Tray 3 vertical transport motor (M112) • Tray 4 vertical transport motor (M122) • Tray 3 vertical transport sensor (PS113) • Tray 4 vertical transport sensor (PS123) • PC control board (PCCB)
• Troubleshooting Guides: 1 Initial check items – – 2 PS123 I/O check, sensor check PCCB CN18-5 (ON) PC-216 7-K 3 PS113 I/O check, sensor check PCCB CN4-14 (ON) PC-216 5-C 4 M122 load check • Check code: 28 • Multi code: 26, 29, 30 PCCB CN9C-9 to 16 PC-216 6-K 5 M112 load check • Check code: 28 • Multi code: 21, 24, 25 PCCB CN5-9 to 16 PC-216 3 to 4-C 6 Replace PCCB.

• Code: 30-03
• Description: Misfeed at 2nd transfer section
  30-03 The fusing loop sensor (PS2) is not turned ON (unblocked) even after the lapse of a given period of time after the leading edge of the paper has turned ON (unblocked) the registration sensor (PS1).
  – Paper jam of a sheet of paper left at the 2nd transfer section results, if the registration sensor (PS1) is turned ON (unblocked) when the main power switch is turned ON, a door is opened and closed, or a misfeed or malfunction is reset.
  – Paper jam of a sheet of paper left at the 2nd transfer section results, if a sheet of paper is determined to exist at a position detected when the main power switch is turned ON, a door is opened and closed, or a misfeed or malfunction is reset.
• Causes: • Transport motor (M1) • Registration clutch (CL4) • Registration sensor (PS1) • Fusing loop sensor (PS2) • Expansion control board (EXCB) • Base board (BASEB)
• Troubleshooting Guides: 1 Initial check items – – 2 PS1 I/O check, sensor check BASEB CN15E-9 (ON) 4-C 3 PS2 I/O check, sensor check EXCB CN13EX-6 (ON) 4-X 4 CL4 load check • Check code: 21 • Multi code: 2 BASEB CN15E-2 (ON) 3-C 5 M1 load check • Check code: 40 • Multi code: 1, 4, 5 BASEB CN19EA-1 to 5 1-C 6 Replace EXCB. – – 7 Replace BASEB.

• Code: 32-01, 32-05, 32-06
• Description: Misfeed at fusing/paper exit section
  32-01 The leading edge of the paper is not turned ON (unblocked) the ADU paper passage sensor/1 (PS40) even after the lapse of a given period of time after the reverse sequence is started.
  32-05 The paper exit sensor (PS3) is not turned OFF (blocked) even after the lapse of a given period of time after the leading edge of the paper has turned ON (unblocked) PS3.
  32-06 The paper exit sensor (PS3) is not turned ON (unblocked) even after the lapse of a given period of time after the leading edge of the paper has turned ON (unblocked) the fusing loop sensor (PS2).
  – Paper jam of a sheet of paper left at the paper exit section results, if the paper exit sensor (PS3) is turned ON (unblocked) when the main power switch is turned ON, a door is opened and closed, or a misfeed or malfunction is reset.
  – Paper jam of a sheet of paper left at the paper exit section results, if a sheet of paper is determined to exist at a position detected when the main power switch is turned ON, a door is opened and closed, or a misfeed or malfunction is reset.
• Causes: • Transport motor (M1) • Fusing motor (M3) • Paper exit/reverse motor (M4) • ADU transport motor (M5) • Fusing loop sensor (PS2) • Paper exit sensor (PS3) • ADU paper passage sensor/1 (PS40) • Exit path switch solenoid (SD3) • Expansion control board (EXCB) • Base board (BASEB)
• Troubleshooting Guides: 1 Initial check items – – 2 PS2 I/O check, sensor check EXCB CN13EX-6 (ON) 4-C 3 PS3 I/O check, sensor check BASEB CN22E-3 (ON) 11-C 4 PS40 I/O check, sensor check BASEB CN22E-6 (ON) 11-C 5 SD3 load check • Check code: 83 • Multi code: 0 BASEB CN13E-7 (24V) 12-C 6 M1 load check • Check code: 40 • Multi code: 1, 4, 5 BASEB CN19EA-1 to 5 1-C 7 M3 load check • Check code: 45 • Multi code: 1, 4, 5, 6 BASEB CN19EA-6 to 10 1-C 8 M4 load check • Check code: 84 • Multi code: 1, 4, 5, 6, 9, 10 BASEB CN18E-3 to 6 5-C 9 M5 load check • Check code: 85 • Multi code: 1, 4, 5 BASEB CN18E-7 to 10 5-C 10 Replace EXCB. – – 11 Replace BASEB.

• Code: 66-01, 66-11, 66-21
• Description: Misfeed at DF turnover section
  66-01 <When DF-632 is installed> The document registration sensor (PS3) is not turned ON (unblocked) even after the lapse of a given period of time after the reverse registration operation started.
  66-11 <When DF-632 is installed> The document registration sensor (PS3) is not turned OFF (blocked) even after the lapse of a given period of time after PS3 has turned ON (unblocked) after the reverse registration operation started.
  66-21 <When DF-632 is installed> The document reading sensor (PS4) is not turned ON even after the lapse of a given period of time after the document registration sensor (PS3) is turned ON (unblocked) after the reverse registration operation started.
• Causes: • Document reading motor (M1) • Registration motor (M3) • Document registration sensor (PS3) • Document reading sensor (PS4) • DF control board (DFCB)
• Troubleshooting Guides: 1 Initial check items – – 2 PS4 I/O check, sensor check DFCB J10-3 (ON) DF-632 2-G 3 PS3 I/O check, sensor check DFCB J14-12 (ON) DF-632 5-G 4 M1 load check • Check code: 60 • Multi code 34, 35, 36, 37, 38, 39 DFCB J7-1 to 4 DF-632 2-B 5 M3 load check • Check code: 60 • Multi code: 17, 18, 19, 20 DFCB J6-1 to 4 DF-632 3-B 6 DFCB F6 conduction check – – 7 Replace DFCB.

• Code: 66-02
• Description: Misfeed at DF paper feed section
  <When DF-632 or DF-714 is installed> The after separate sensor (PS2) is not turned ON (blocked) even after the lapse of a given period of time after the document feed motor (M2) has turned ON.
  – Paper jam of a sheet of paper left at the DF paper feed section results, if the after separate sensor (PS2) is turned ON (blocked) when the main power switch is turned ON, a DF left cover is opened and closed, or a misfeed or malfunction is reset.
• Causes: <When DF-632 is installed> • Document feed motor (M2) • After separate sensor (PS2) • Document length size sensor/1 (PS6) • Document length size sensor/2 (PS7) • Document width size sensor (VR1) • DF control board (DFCB)
  <When DF-714 is installed> • Document feed motor (M2) • After separate sensor (PS2) • Document length size sensor/1 (PS8) • Document length size sensor/2 (PS9) • Document width size sensor (VR1) • DF control board (DFCB)
• Troubleshooting Guides: 1 Initial check items – – 2 Make the adjusting the pressure of the separation roller. – – 3 PS2 I/O check, sensor check DFCB J14-8 (ON) DF-632 6-G 4 PS6 I/O check, sensor check DFCB J12-6 (ON) DF-632 4-G 5 PS7 I/O check, sensor check DFCB J12-5 (ON) DF-632 4-G 6 VR1 I/O check, sensor check DFCB J12-3 (ON) DF-632 4-G 7 M2 load check • Check code: 60 • Multi code: 1, 2, 3, 5, 6 DFCB J5-1 to 4 DF-632 2-B 8 DFCB F3 conduction check – – 9 Replace DFCB.
  When DF-714 is installed 1 Initial check items – – 2 Make the adjusting the pressure of the separation roller. – – 3 PS2 I/O check, sensor check DFCB J14-8 (ON) DF-714 6-G 4 PS8 I/O check, sensor check DFCB J12-6 (ON) DF-714 3 to 4-G 5 PS9 I/O check, sensor check DFCB J12-5 (ON) DF-714 3-G 6 VR1 I/O check, sensor check DFCB J12-3 (ON) DF-714 4-G 7 M2 load check • Check code: 60 • Multi code: 1, 2, 3, 4, 5, 6 DFCB J5-1 to 4 DF-714 1 to 2-B 8 DFCB F3 conduction check – – 9 Replace DFCB.

• Code: 66-03, 66-13
• Description: Misfeed at DF transport section
  66-03 <When DF-632 or DF-714 is installed> The after separate sensor (PS2) is not turned OFF (unblocked) even after the lapse of a given period of time after PS2 has turned ON (blocked).
  66-13 <When DF-632 or DF-714 is installed> The document registration sensor (PS3) is not turned ON (unblocked) even after the lapse of a given period of time after the after separate sensor (PS2) has turned ON (blocked).
  – Paper jam of a sheet of paper left at the DF transfer section results, if the registration sensor (PS3) is turned ON (unblocked) when the main power switch is turned ON, a DF left cover is opened and closed, or a misfeed or malfunction is reset.
• Causes:
• Troubleshooting Guides:

• Code: 66-04, 66-14
• Description: Misfeed at DF paper exit section
  66-04 <When DF-632 is installed> The document exit sensor (PS5) is not turned ON (blocked) even after the lapse of a given period of time after the document reading sensor (PS4) has turned ON. <When DF-714 is installed> The document exit sensor (PS5) is not turned ON (blocked) even after the lapse of a given period of time after the document reading sensor (PS6) has turned ON.
  66-14 <When DF-632 is installed> The document exit sensor (PS5) is not turned OFF (unblocked) even after the lapse of a given period of time after the document reading sensor (PS4) has turned OFF. <When DF-714 is installed> The document exit sensor (PS5) is not turned OFF (unblocked) even after the lapse of a given period of time after the document reading sensor (PS6) has turned OFF.
  – Paper jam of a sheet of paper left at the DF paper exit section results, if the document exit sensor (PS5) is turned ON (blocked) when the main power switch is turned ON, a DF left cover is opened and closed, or a misfeed or malfunction is reset.
• Causes: <When DF-632 is installed> • Document reading motor (M1) • Document reading sensor (PS4) • Document exit sensor (PS5) • DF control board (DFCB)
  <When DF-714 is installed> • Document reading motor (M1) • Document exit sensor (PS5) • Document reading sensor (PS6) • DF control board (DFCB)
• Troubleshooting Guides: When DF-632 is installed 1 Initial check items – – 2 PS4 I/O check, sensor check DFCB J10-3 (ON) DF-632 2-G 3 PS5 I/O check, sensor check DFCB J15-6 (ON) DF-632 3-G 4 M1 load check • Check code: 60 • Multi code 34, 35, 36, 37, 38, 39 DFCB J7-1 to 4 DF-632 2-B 5 Replace DFCB.
  When DF-714 is installed 1 Initial check items – – 2 PS6 I/O check, sensor check DFCB J10-3 (ON) DF-714 2-G 3 PS5 I/O check, sensor check DFCB J15-6 (ON) DF-714 3-G 4 M1 load check • Check code: 60 • Multi code: 34, 35, 37, 40 DFCB J7-1 to 4 DF-714 1-B 5 Replace DFCB.

• Code: 66-05, 66-06, 66-15
• Description: Misfeed at DF image reading section
  66-05 <When DF-632 is installed> The document reading sensor (PS4) is not turned OFF even after the lapse of a given period of time after the document registration sensor (PS3) has turned OFF (blocked). <When DF-714 is installed> The document reading sensor (PS6) is not turned OFF even after the lapse of a given period of time after the document registration sensor (PS3) has turned OFF (blocked).
  66-06 <When DF-632 is installed> The document reading sensor (PS4) is turned ON earlier than a given time after PS4 is turned OFF during original transportation. <When DF-714 is installed> The document reading sensor (PS6) is turned ON earlier than a given time after PS6 is turned OFF during original transportation.
  66-15 <When DF-632 is installed> The document reading sensor (PS4) does not turn OFF even after the lapse of a given period of time after the document registration sensor (PS3) is turned OFF (blocked) after the reverse read operation started.
  – Paper jam of a sheet of paper left at the DF image reading section results, if the document reading sensor (PS4, PS6) is turned ON when the main power switch is turned ON, a DF left cover is opened and closed, or a misfeed or malfunction is reset.
• Causes: <When DF-632 is installed> • Document reading motor (M1) • Reading roll release motor (M5) • Document registration sensor (PS3) • Document reading sensor (PS4) • DF control board (DFCB)
  <When DF-714 is installed> • Document reading motor (M1) • Reading roll release motor (M4) • Document registration sensor (PS3) • Document reading sensor (PS6) • DF control board (DFCB)
• Troubleshooting Guides: When DF-632 is installed 1 Initial check items – – 2 Make the adjustment of original stop position. – – 3 PS3 I/O check, sensor check DFCB J14-12 (ON) DF-632 5-G 4 PS4 I/O check, sensor check DFCB J10-3 (ON) DF-632 2-G 5 M1 load check • Check code: 60 • Multi code 34, 35, 36, 37, 38, 39 DFCB J7-1 to 4 DF-632 2-B 6 M5 load check • Check code: 60 • Multi code: 81, 82 DFCB J18-4 to 5 DF-632 2-G 7 Replace DFCB.
  When DF-714 is installed 1 Initial check items – – 2 Make the adjustment of original stop position. – – 3 PS3 I/O check, sensor check DFCB J14-12 (ON) DF-714 4-G 4 PS6 I/O check, sensor check DFCB J10-3 (ON) DF-714 2-G 5 M1 load check • Check code: 60 • Multi code: 34, 35, 37, 40 DFCB J7-1 to 4 DF-714 1-B 6 M4 load check • Check code: 60 • Multi code: 81, 82 DFCB J18-4 to 5 DF-714 1-G 7 Replace DFCB.

• Code: 66-07
• Description: Misfeed at DF paper feed/transport/image reading/turnover/paper exit section
  <When DF-632 or DF-714 is installed> Due to a remaining sheet of paper that has not been detected by sensors, before the start of a job, a sensor detects the sheet at an unexpected timing.
• Causes: <When DF-632 is installed> • Document registration sensor (PS3) • Document reading sensor (PS4) • Document exit sensor (PS5) • DF control board (DFCB)
  <When DF-714 is installed> • Document registration sensor (PS3) • Document exit sensor (PS5) • Document reading sensor (PS6) • DF control board (DFCB)
• Troubleshooting Guides: When DF-632 is installed 1 Initial check items – – 2 Make the adjustment of original stop position. – – 3 Make the adjusting the pressure of the separation roller. – – 4 PS3 I/O check, sensor check DFCB J14-12 (ON) DF-632 5-G 5 PS4 I/O check, sensor check DFCB J10-3 (ON) DF-632 2-G 6 PS5 I/O check, sensor check DFCB J15-6 (ON) DF-632 3-G 7 Replace DFCB.
  When DF-714 is installed 1 Initial check items – – 2 Make the adjustment of original stop position. – – 3 Make the adjusting the pressure of the separation roller. – – 4 PS3 I/O check, sensor check DFCB J14-12 (ON) DF-714 4-G 5 PS5 I/O check, sensor check DFCB J15-6 (ON) DF-714 3-G 6 PS6 I/O check, sensor check DFCB J10-3 (ON) DF-714 2-G 7 Replace DFCB.

• Code: 66-08
• Description: Double feed detection jam
  <When DF-714 is installed> The double feed of document is detected within a given period of time after the leading edge of the paper has turned ON (unblocked) the document registration sensor (PS3).
• Causes: <When DF-714 is installed> • Multi feed detection board/TX (MFDB/TX) • Multi feed detection board/RX (MFDB/RX) • Multi feed receiver board (MFRB) • DF control board (DFCB)
• Troubleshooting Guides: 1 Initial check items – – 2 Perform the Multi-Feed DetectionAdj. – – 3 Replace MFDB/TX. – – 4 Replace MFDB/RX. – – 5 Replace MFRB. – – 6 Replace DFCB.

• Code: 66-23, 66-33
• Description: Misfeed at DF transport section
  66-23 <When DF-632 or DF-714 is installed> The document registration sensor (PS3) is not turned OFF (blocked) even after the lapse of a given period of time after PS3 has turned ON (unblocked).
  66-33 <When DF-632 is installed> The document reading sensor (PS4) is not turned ON even after the lapse of a given period of time after the document registration sensor (PS3) has turned ON (unblocked). <When DF-714 is installed> The document reading sensor (PS6) is not turned ON even after the lapse of a given period of time after the document registration sensor (PS3) has turned ON (unblocked).
  – Paper jam of a sheet of paper left at the DF transfer section results, if the registration sensor (PS3) is turned ON (unblocked) when the main power switch is turned ON, a DF left cover is opened and closed, or a misfeed or malfunction is reset.
• Causes: <When DF-632 is installed> • Document reading motor (M1) • Document feed motor (M2) • Registration motor (M3) • After separate sensor (PS2) • Document registration sensor (PS3) • Document reading sensor (PS4) • DF control board (DFCB)
  <When DF-714 is installed> • Document reading motor (M1) • Document feed motor (M2) • Registration motor (M3) • After separate sensor (PS2) • Document registration sensor (PS3) • Document reading sensor (PS6) • DF control board (DFCB)
• Troubleshooting Guides: When DF-632 is installed 1 Initial check items – – 2 PS2 I/O check, sensor check DFCB J14-8 (ON) DF-632 6-G 3 PS3 I/O check, sensor check DFCB J14-12 (ON) DF-632 5-G 4 PS4 I/O check, sensor check DFCB J10-3 (ON) DF-632 2-G 5 M1 load check • Check code: 60 • Multi code 34, 35, 36, 37, 38, 39 DFCB J7-1 to 4 DF-632 2-B 6 M2 load check • Check code: 60 • Multi code: 1, 2, 3, 5, 6 DFCB J5-1 to 4 DF-632 2-B 7 M3 load check • Check code: 60 • Multi code: 17, 18, 19, 20 DFCB J6-1 to 4 DF-632 3-B 8 DFCB F3, F4, F5 conduction check – – 9 Replace DFCB.
  When DF-714 is installed 1 Initial check items – – 2 PS2 I/O check, sensor check DFCB J14-8 (ON) DF-714 6-G 3 PS3 I/O check, sensor check DFCB J14-12 (ON) DF-714 4-G 4 PS6 I/O check, sensor check DFCB J10-3 (ON) DF-714 2-G 5 M1 load check • Check code: 60 • Multi code: 34, 35, 37, 40 DFCB J7-1 to 4 DF-714 1-B 6 M2 load check • Check code: 60 • Multi code: 1, 2, 3, 4, 5, 6 DFCB J5-1 to 4 DF-714 1 to 2-B 7 M3 load check • Check code: 60 • Multi code: 17, 18, 20, 21, 22, 23 DFCB J6-1 to 4 DF-714 2-B 8 DFCB F3, F4, F5 conduction check – – 9 Replace DFCB.

• Code: 66-24, 66-34
• Description: Misfeed at DF paper exit section
  66-24 <When DF-632 is installed> The document exit sensor (PS5) is not turned ON (blocked) even after the lapse of a given period of time after the document reading sensor (PS4) has turned ON.
  66-34 <When DF-632 is installed> The document exit sensor (PS5) is not turned OFF (unblocked) even after the lapse of a given period of time after the document reading sensor (PS4) has turned OFF after the reverse exit operation started.
  – Paper jam of a sheet of paper left at the DF paper exit section results, if the document exit sensor (PS5) is turned ON (blocked) when the main power switch is turned ON, a DF left cover is opened and closed, or a misfeed or malfunction is reset.
• Causes: <When DF-632 is installed> • Document reading motor (M1) • Document reading sensor (PS4) • Document exit sensor (PS5) • DF control board (DFCB)
  <When DF-714 is installed> • Document reading motor (M1) • Document exit sensor (PS5) • Document reading sensor (PS6) • DF control board (DFCB)
• Troubleshooting Guides: When DF-632 is installed 1 Initial check items – – 2 PS4 I/O check, sensor check DFCB J10-3 (ON) DF-632 2-G 3 PS5 I/O check, sensor check DFCB J15-6 (ON) DF-632 3-G 4 M1 load check • Check code: 60 • Multi code 34, 35, 36, 37, 38, 39 DFCB J7-1 to 4 DF-632 2-B 5 Replace DFCB.
  When DF-714 is installed 1 Initial check items – – 2 PS6 I/O check, sensor check DFCB J10-3 (ON) DF-714 2-G 3 PS5 I/O check, sensor check DFCB J15-6 (ON) DF-714 3-G 4 M1 load check • Check code: 60 • Multi code: 34, 35, 37, 40 DFCB J7-1 to 4 DF-714 1-B 5 Replace DFCB.

• Code: 72-14
• Description: Misfeed at FS transport section
  <When FS-536 or FS-536SD is installed> The saddle exit sensor (PS5) is not turned ON even after the lapse of a given period of time after the leading edge of the paper has turned ON the main tray exit sensor (PS16).
• Causes: • Saddle exit sensor (PS5) • Main tray exit sensor (PS16) • FS control board (FSCB)
• Troubleshooting Guides: 1 Initial check items – – 2 PS5 I/O check, sensor check FSCB J5-2 (ON) FS-536/FS-536SD 16-K 3 PS16 I/O check, sensor check FSCB J9<B>-4 (ON) FS-536/FS-536SD 11-C 4 Replace FSCB.

• Code: 72-15
• Description: Misfeed at FS transport section
  <When FS-536 or FS-536SD is installed> The saddle exit sensor (PS5) is not turned OFF after the lapse of a given period of time after the leading edge of the paper has turned ON PS5.
• Causes: • Saddle exit sensor (PS5) • FS control board (FSCB)
• Troubleshooting Guides: 1 Initial check items – – 2 PS5 I/O check, sensor check FSCB J5-2 (ON) FS-536/FS-536SD 16-K 3 Replace FSCB.

• Code: 72-16
• Description: Misfeed at FS transport section
  <When FS-533 is installed> The paper feed sensor (PS101) is not turned ON even after the lapse of a given period of time after the leading edge of the paper has turned OFF (unblocked) the main body’s paper exit sensor (PS3).
  <When FS-533+PK-519 is installed> The paper feed sensor (PS101) is not turned ON even after the lapse of a given period of time after the leading edge of the paper has turned ON the paper feed sensor (PS201).
  <When FS-536 or FS-536SD is installed> The FNS entrance sensor (PS4) is not turned ON even after the lapse of a given period of time after the leading edge of the paper has turned ON the RU entrance sensor (PS2).
• Causes: <When FS-533 or FS-533+PK-519 is installed> • Paper conveyance motor (M101) • Paper exit sensor (PS3) • Paper feed sensor (PS101) • Paper feed sensor (PS201) • FS control board (FSCB) • Base board (BASEB)
  <When FS-536 or FS-536SD is installed> • RU entrance sensor (PS2) • FNS entrance sensor (PS4) • FS control board (FSCB)
• Troubleshooting Guides: When FS-533 or FS-533+PK-519 is installed 1 Initial check items – – 2 PS3 I/O check, sensor check BASEB CN22E-3 (ON) 11-C 3 PS101 I/O check, sensor check FSCB CN111 FS-533 7-D to E 4 PS201 I/O check, sensor check PKCB CN204 FS-533 (PK-519) 5-C 5 M101 operation check FSCB CN101 FS-533 6-J 6 FSCB CP101 conduction check – – 7 Replace FSCB. – – 8 Replace BASEB.
  When FS-536 or FS-536SD is installed 1 Initial check items – – 2 PS2 I/O check, sensor check FSCB J6-7 (ON) FS-536/FS-536SD 12-K 3 PS4 I/O check, sensor check FSCB J4<B>-9 (ON) FS-536/FS-536SD 15-C 4 Replace FSCB.

• Code: 72-17
• Description: Misfeed at FS transport section
  <When FS-533 is installed> The paper feed sensor (PS101) is not turn OFF even after the lapse of a given period of time after the leading edge of the paper has turned ON PS101.
  <When FS-536 or FS-536SD is installed> The FNS entrance sensor (PS4) is not turned OFF even after the lapse of a given period of time after the leading edge of the paper has turned ON PS4.
• Causes: <When FS-533 is installed> • Paper conveyance motor (M101) • Paper feed sensor (PS101) • FS control board (FSCB)
  <When FS-536 or FS-536SD is installed> • FNS entrance sensor (PS4) • FS control board (FSCB)
• Troubleshooting Guides: When FS-533 is installed 1 Initial check items – – 2 PS101 I/O check, sensor check FSCB CN111 FS-533 7-D to E 3 M101 operation check FSCB CN101 FS-533 6-J 4 FSCB CP101 conduction check – – 5 Replace FSCB.
  When FS-536 or FS-536SD is installed 1 Initial check items – – 2 PS4 I/O check, sensor check FSCB J4<B>-9 (ON) FS-536/FS-536SD 15-C 3 Replace FSCB.

• Code: 72-18
• Description: Misfeed at FS transport section
  <When FS-536 or FS-536SD is installed> • The main tray exit sensor (PS16) is not turned ON even after the lapse of a given period of time after the leading edge of the paper has turned ON the FNS entrance sensor (PS4). • While the buffer is controlled, the main tray exit sensor (PS16) is not tuned ON even after the lapse of a given period of time after the reverse rotation drive is started.
• Causes: • FNS entrance sensor (PS4) • Main tray exit sensor (PS16) • FS control board (FSCB)
• Troubleshooting Guides: 1 Initial check items – – 2 PS4 I/O check, sensor check FSCB J4<B>-9 (ON) FS-536/FS-536SD 15-C 3 PS16 I/O check, sensor check FSCB J9<B>-4 (ON) FS-536/FS-536SD 11-C 4 Replace FSCB.

• Code: 72-19
• Description: Misfeed at FS transport section
  <When FS-536 or FS-536SD is installed> The main tray exit sensor (PS16) is not turned OFF even after the lapse of a given period of time after the leading edge of the paper has turned ON PS16.
• Causes: • Main tray exit sensor (PS16) • FS control board (FSCB)
• Troubleshooting Guides: 1 Initial check items – – 2 PS16 I/O check, sensor check FSCB J9<B>-4 (ON) FS-536/FS-536SD 16-C 3 Replace FSCB.

• Code: 72-21
• Description: Misfeed at FS transport section
  <When FS-533 is installed> The paper surface detect sensor/1 (PS102) is not turned OFF (unblocked) after the paper exit.
  <When FS-536 or FS-536SD is installed> The staple stacker paper detection sensor (PS31) is not turn OFF even after the lapse of a given period of time after the start of exiting paper.
• Causes: <When FS-533 is installed> • Paper exit motor (M102) • Paper surface detect sensor/1 (PS102) • FS control board (FSCB)
  <When FS-536 or FS-536SD is installed> • Staple stacker paper detection sensor (PS31) • FS control board (FSCB)
• Troubleshooting Guides: When FS-533 is installed 1 Initial check items – – 2 PS102 I/O check, sensor check FSCB CN102 FS-533 6-J 3 M102 operation check FSCB CN109 FS-533 8 to 9-D to E 4 FSCB CP102 conduction check – – 5 Replace FSCB.
  When FS-536 or FS-536SD is installed 1 Initial check items – – 2 PS31 I/O check, sensor check FSCB J12-11 (ON) FS-536/FS-536SD 6-C 3 Replace FSCB.

• Code: 72-22
• Description: Misfeed at FS transport section
  <When FS-536 or FS-536SD is installed> The sub tray exit sensor (PS8) is not turned ON (blocked) even after the lapse of a given period of time after the paper reaches the paper transport acceleration point.
• Causes: • Sub tray exit sensor (PS8) • FS control board (FSCB)
• Troubleshooting Guides: 1 Initial check items – – 2 PS8 I/O check, sensor check FSCB J9<B>-8 (ON) FS-536/FS-536SD 11-C 3 Replace FSCB.

• Code: 72-23
• Description: Misfeed at FS transport section
  <When FS-536 or FS-536SD is installed> The sub tray exit sensor (PS8) is not turned OFF (unblocked) even after the lapse of a given period of time after the leading edge of the paper has turned ON (blocked) PS8.
• Causes: • Sub tray exit sensor (PS8) • FNS entrance sensor (PS4) • Main tray exit sensor (PS16) • FS control board (FSCB)
• Troubleshooting Guides: 1 Initial check items – – 2 Clean the sensor of paper path. – – 3 PS8 I/O check, sensor check FSCB J9<B>-8 (ON) FS-536/FS-536SD 11-C 4 Replace FSCB.

• Code: 72-25, 72-26
• Description: Misfeed at SD paper exit section
  72-25 <When FS-536SD is installed> The fold exit sensor (PS12) is not turned ON by the paper even after the lapse of a given period of time after the half-fold exit operation started.
  72-26 <When FS-536SD is installed> The fold exit sensor (PS12) is not turned OFF even after the lapse of a given period of time after the leading edge of the paper has turned ON PS12.
• Causes: • Fold exit sensor (PS12) • SD control board (SDCB) • FS control board (FSCB)
• Troubleshooting Guides: 1 Initial check items – – 2 PS12 I/O check, sensor check SDCB J9-2 (ON) FS-536/FS-536SD 5-P 3 Replace SDCB. – – 4 Replace FSCB.

• Code: 72-43
• Description: Misfeed at PK JAM
  <When FS-533+PK-519 is installed> The punch motor sensor (PS202) does not detect rotation of the punch motor even after the lapse of a given period of time after the punch motor (M201) started operating.
  <When FS-536+PK-520 or FS-536SD+PK-520 is installed> The punch position sensor (PS2) is not turned OFF (unblocked) even after the lapse of a given period of time after the punch drive motor (M1) starts rotating.
• Causes: <When FS-533+PK-519 is installed> • Punch motor (M201) • Punch motor sensor (PS202) • PK control board (PKCB) • FS control board (FSCB)
  <When FS-536+PK-520 or FS-536SD +PK-520 is installed> • Punch drive motor (M1) • Puncher home sensor (PS2) • FS control board (FSCB)
• Troubleshooting Guides: When FS-533+PK-519 is installed 1 Initial check items – – 2 PS202 I/O check, sensor check PKCB CN204 FS-533 (PK-519) 5-C 3 M201 operation check PKCB CN203-1 to 2 FS-533 (PK-519) 4-C 4 Replace PKCB. – – 5 Replace FSCB.
  When FS-536+PK-520 or FS-536SD+PK-520 is installed 1 Initial check items – – 2 PS2 I/O check, sensor check FSCB J7-2 (ON) FS-536/FS-536SD (PK-520) 13-K 3 M1 operation check FSCB J7-7 to 8 FS-536/FS-536SD (PK-520) 13-K 4 Replace FSCB.

• Code: 72-70
• Description: Misfeed at PK JAM
  <When FS-533+PK-519 is installed> The paper feed sensor (PS201) is not turned OFF even after the lapse of a given period of time after the leading edge of the paper has turned ON PS201.
• Causes: • Fusing motor (M3) • Paper conveyance motor (M101) • Paper feed sensor (PS201) • FS control board (FSCB)
• Troubleshooting Guides: 1 Initial check items – – 2 PS201 I/O check, sensor check PKCB CN204 FS-533 (PK-519) 5-C 3 M3 load check • Check code: 45 • Multi code: 1, 4, 5, 6 BASEB CN19EA-6 to 10 1-C 4 M101 operation check FSCB CN101 FS-533 6-J 5 Replace FSCB.

• Code: 72-81
• Description: Misfeed at FS staple section
  <When FS-533 is installed> The stapler home sensor (PS110) is not turned ON (blocked) after the stapler motor is energized.
  <When FS-536 or FS-536SD is installed> The stapler position sensor/Ctr (PS24) is not turned ON (blocked) or OFF (unblocked) even after the lapse of a given period of time after the side stapler movement motor (M13) turned ON.
• Causes: <When FS-533 is installed> • Stapler home sensor (PS110) • Stapler unit • Stapler relay board (STRYB) • FS control board (FSCB)
  <When FS-536 or FS-536SD is installed> • Side stapler movement motor (M13) • Stapler position sensor/Ctr (PS24) • FS control board (FSCB)
• Troubleshooting Guides: When FS-533 is installed 1 Initial check items – – 2 PS110 I/O check, sensor check FSCB CN110 FS-533 8-D to E 3 Replace the stapler unit. – – 4 Replace STRYB. – – 5 Replace FSCB.
  When FS-536 or FS-536SD is installed 1 Initial check items – – 2 M13 operation check FSCB J11<A>-1 to 4 FS-536/FS-536SD 4-C 3 PS24 I/O check, sensor check FSCB J11<B>-6 (ON) FS-536/FS-536SD 5-C 4 Replace FSCB.

• Code: 72-84
• Description: Misfeed at SD staple section
  <When FS-536SD is installed> The stapler home position sensor/R does not turn ON even after the lapse of a given period of time after the staple operation started.
• Causes: <When FS-536SD is installed> • Staple unit • SD control board (SDCB) • FS control board (FSCB)
• Troubleshooting Guides: 1 Initial check items – – 2 Replace the staple unit. – – 3 Replace SDCB. – – 4 Replace FSCB.

• Code: 72-85
• Description: Misfeed at SD transport section
  <When FS-536SD is installed> The SD entrance sensor (PS1) is not turned ON (blocked) even after the lapse of a given period of time after the leading edge of the paper has turned ON the saddle exit sensor (PS5).
• Causes: • SD entrance sensor (PS1) • Saddle exit sensor (PS5) • SD control board (SDCB) • FS control board (FSCB)
• Troubleshooting Guides: 1 Initial check items – – 2 PS5 I/O check, sensor check FSCB J5-2 (ON) FS-536/FS-536SD 16-K 3 PS1 I/O check, sensor check SDCB J4-8 (ON) FS-536/FS-536SD 5-L 4 Replace SDCB. – – 5 Replace FSCB.

• Code: 72-86
• Description: Misfeed at SD transport section
  <When FS-536SD is installed> The SD entrance sensor (PS1) is not turned OFF (unblocked) even after the lapse of a given period of time after the leading edge of the paper has turned ON (blocked) PS1.
• Causes: • SD entrance sensor (PS1) • SD control board (SDCB) • FS control board (FSCB)
• Troubleshooting Guides: 1 Initial check items – – 2 PS1 I/O check, sensor check SDCB J4-8 (ON) FS-536/FS-536SD 5-L 3 Replace SDCB. – – 4 Replace FSCB.

• Code: 72-87
• Description: Misfeed at SD transport section
  <When FS-536SD is installed> The center staple/fold stacker paper detect sensor (PS3) is not turned ON even after the lapse of a given period of time after the leading edge of the paper has turned ON the SD entrance sensor (PS1).
• Causes: • SD entrance sensor (PS1) • Center staple/fold stacker paper detect sensor (PS3) • SD control board (SDCB) • FS control board (FSCB)
• Troubleshooting Guides: 1 Initial check items – – 2 PS1 I/O check, sensor check SDCB J4-3 (ON) FS-536/FS-536SD 4-K 3 PS3 I/O check, sensor check SDCB J9-2 (ON) FS-536/FS-536SD 5-P 4 Replace SDCB. – – 5 Replace FSCB.

• Code: 75-42
• Description: Misfeed at RU section
  <When FS-536 or FS-536SD is installed> The RU entrance sensor (PS2) is not turned ON (blocked) even after the lapse of a given period of time after the leading edge of the paper has turned OFF (unblocked) the main body’s paper exit sensor (PS3).
• Causes: • Paper exit sensor (PS3) • RU entrance sensor (PS2) • FS control board (FSCB)
• Troubleshooting Guides: 1 Initial check items – – 2 PS3 I/O check, sensor check BASEB CN22E-3 (ON) 11-C 3 PS2 I/O check, sensor check FSCB J6-7 (ON) FS-536/FS-536SD 12-K 4 Replace FSCB.

• Code: 75-43
• Description: Misfeed at RU section
  <When FS-536 or FS-536SD is installed> The RU entrance sensor (PS2) is not turned OFF (unlocked) even after the lapse of a given period of time after PS2 is turned ON (blocked).
• Causes: • RU entrance sensor (PS2) • FS control board (FSCB)
• Troubleshooting Guides: 1 Initial check items – – 2 PS2 I/O check, sensor check FSCB J6-7 (ON) FS-536/FS-536SD 12-K 3 Replace FSCB.

• Code: 92-01, 92-02, 92-40
• Description: Misfeed at duplex pre-registration section
  92-01 The leading edge of the paper is not turned ON (unblocked) the registration sensor (PS1) even after the lapse of a given period of time after a duplex paper feed sequence has been started.
  92-02 For the second-side feed of paper in the duplex mode, loop forming has not been complete before the second side of a sheet enters the registration roller because the rise timing of load to perform registration is earlier than the rise timing of load to form a loop.
  92-40 For the second-side feed of paper in the duplex mode, the image write start signal permit continues to be disabled for a predetermined period of time after the timing of the image write start signal output.
  – Paper jam of a sheet of paper left at the duplex pre-registration section results, if a sheet of paper is determined to exist at a position detected when the main power switch is turned ON, a door is opened and closed, or a misfeed or malfunction is reset.
• Causes: • Transport motor (M1) • ADU transport clutch (CL6) • Registration sensor (PS1) • Base board (BASEB)
• Troubleshooting Guides: 1 Initial check items – – 2 PS1 I/O check, sensor check BASEB CN15E-9 (ON) 4-C 3 CL6 load check • Check code: 81 • Multi code: 0 BASEB CN18E-1 (REM) 5-C 4 M1 load check • Check code: 40 • Multi code: 1, 4, 5 BASEB CN19EA-1 to 5 1-C 5 Replace BASEB.

Solve Konica-Minolta bizhub C250i Error codes

• Code: 93-10
• Description: Misfeed at duplex transport section
  93-10 The ADU paper passage sensor/2 (PS41) is not turned ON (blocked) even after the lapse of a given period of time after the leading edge of the paper has turned ON (unblocked) the ADU paper passage sensor/1 (PS40).
  – Paper jam of a sheet of paper left at the duplex transport section results, if the ADU paper passage sensor/1 (PS40) is turned ON (unblocked) or the ADU paper passage sensor/2 (PS41) is turned ON (blocked) when the main power switch is turned ON, a door is opened and closed, or a misfeed or malfunction is reset.
  – Paper jam of a sheet of paper left at the duplex transport section results, if a sheet of paper is determined to exist at a position detected when the main power switch is turned ON, a door is opened and closed, or a misfeed or malfunction is reset.
• Causes: • Transport motor (M1) • ADU transport motor (M5) • ADU transport clutch (CL6) • ADU paper passage sensor/1 (PS40) • ADU paper passage sensor/2 (PS41) • Expansion control board (EXCB) • Base board (BASEB)
• Troubleshooting Guides: 1 Initial check items – – 2 PS40 I/O check, sensor check BASEB CN22E-6 (ON) 11-C 3 PS41 I/O check, sensor check EXCB CN13EX-9 (ON) 5-X 4 CL6 load check • Check code: 81 • Multi code: 0 BASEB CN18E-1 (REM) 5-C 5 M1 load check • Check code: 40 • Multi code: 1, 4, 5 BASEB CN19EA-1 to 5 1-C 6 M5 load check • Check code: 85 • Multi code: 1, 4, 5 BASEB CN18E-7 to 10 5-C 7 Replace EXCB. – – 8 Replace BASEB.

• Code: 99-01
• Description: Controller JAM (paper size error)
  • As a result of a paper size error, the controller transmits a forced stop command to the printer engine and the printer engine is internally processing the size error. • As a result of a paper size error, the controller transmits a forced stop command to the printer engine; but the paper causing the size error cannot be fed out.
• Causes:
• Troubleshooting Guides: 1 Initial check items – – 2 Open and close the front door of the main body.

• Code: 99-02
• Description: Controller JAM (controller forced stop command)
  The controller transmits a forced stop command under a condition other than a paper size error during a print cycle.
• Causes:
• Troubleshooting Guides: 1 Initial check items – – 2 Open and close the front door of the main body.

• Code: 99-03
• Description: Controller JAM (image processing)
  Image stabilization not completing a job.
• Causes:
• Troubleshooting Guides: 1 Initial check items – – 2 Open and close the front door of the main body.

• Code: 99-04
• Description: Controller JAM (a job reservation in the main body is not released)
  A job reservation is not released after a lapse of a given time after that a print start command has been received.
• Causes:
• Troubleshooting Guides: 1 Initial check items – – 2 Open and close the front door of the main body.

• Code: 99-05
• Description: Controller JAM (main body not starting a job)
  A waiting status is not released even with a print start command received.
• Causes:
• Troubleshooting Guides: 1 Initial check items – – 2 Open and close the front door of the main body.

• Code: 99-06
• Description: Controller JAM (print control on the main body is not completed)
  Print control is not completed even after a job has been completed.
• Causes:
• Troubleshooting Guides: 1 Initial check items – – 2 Open and close the front door of the main body.

• Code: 99-07
• Description: Controller JAM (main body not completing a job)
  The engine does not stop after a lapse of a given time after that a print has finished.
• Causes:
• Troubleshooting Guides: 1 Initial check items – – 2 Open and close the front door of the main body.

• Code: 99-08
• Description: Controller JAM (finisher not starting a job)
  The finisher does not accept a print start command.
• Causes:
• Troubleshooting Guides: 1 Initial check items – – 2 Open and close the front door of the main body. Or, open and close the front door of the finisher.

• Code: 99-09
• Description: Controller JAM (finisher not completing a job)
• Causes: • A paper exit or paper finishing process inside the finisher is not completed. • The finisher does not start during a reset procedure from the jam.
• Troubleshooting Guides: 1 Initial check items – – 2 Open and close the front door of the main body. Or, open and close the front door of the finisher.

• Code: C0002
• Description: Paper feed communication error
  When the base board (BASEB) is receiving data, a communication error is detected.
• Causes: • CPU board (CPUB) • Base board (BASEB) • PC control board (PCCB)
• Troubleshooting Guides: 1. Turn OFF the main power switch and unplug the power cord. Connect the power cord after 15 sec. or more, and turn ON the main power switch. 2. Correct or replace the connector connection between the main body and the paper feed cabinet if faulty. 3. Check CPUB for proper installation and correct as necessary. 4. Rewrite the firmware. 5. Replace PCCB. (PC-116/PC-216 / PC-416) 6. Replace CPUB. 7. Replace BASEB.

• Code: C0106
• Description: Tray 3/transfer LCT paper feed motor turning at abnormal timing (When PC-116, PC-216, or PC-416 is installed)
  • The control circuit detects motor failure to turn while the motor is turning. • The control circuit detects motor turning while the motor remains stationary.
• Causes: <When PC-116 or PC-216 is installed> • Tray 3 paper feed motor (M111) • PC control board (PCCB)
  <When PC-416 is installed> • Paper feed motor (M131) • PC control board (PCCB)
• Troubleshooting Guides: When PC-116 or PC-216 is installed 1. Check the connector between M111-PCCB CN5 for proper connection and correct as necessary. 2. Check the connector of M111 for proper drive coupling and correct as necessary. 3. M111 load check • Check code: 28 • Multi code: 11, 14, 15 • Control signal: PCCB CN5-5 (CW/CCW) • Location of electrical component: PC-116/PC-216 4-C 4. Replace M111. 5. Replace PCCB.
  When PC-416 is installed 1. Check the connector between M131-PCCB CN5 for proper connection and correct as necessary. 2. Check the connector of M131 for proper drive coupling and correct as necessary. 3. M131 load check • Check code: 28 • Multi code: 1, 4, 5 • Control signal: PCCB CN5-5 (CW/CCW) • Location of electrical component: PC-416 4-J 4. Replace M131. 5. Replace PCCB.

• Code: C0107
• Description: Tray 3/transfer LCT vertical transport motor turning at abnormal timing (When PC-116, PC-216, or PC-416 is installed)
  • The control circuit detects motor failure to turn while the motor is turning. • The control circuit detects motor turning while the motor remains stationary.
• Causes: <When PC-116 or PC-216 is installed> • Tray 3 vertical transport motor (M112) • PC control board (PCCB)
  <When PC-416 is installed> • Vertical transport motor (M132) • PC control board (PCCB)
• Troubleshooting Guides: When PC-116 or PC-216 is installed 1. Check the connector between M112-PCCB CN5 for proper connection and correct as necessary. 2. Check the connector of M112 for proper drive coupling and correct as necessary. 3. M112 load check • Check code: 28 • Multi code: 6, 9, 10 • Control signal: PCCB CN5-13 (CW/CCW) • Location of electrical component: PC-116/PC-216 3 to 4-C 4. Replace M112. 5. Replace PCCB.
  When PC-416 is installed 1. Check the connector between M132-PCCB CN5 for proper connection and correct as necessary. 2. Check the connector of M132 for proper drive coupling and correct as necessary. 3. M132 load check • Check code: 28 • Multi code: 21, 24, 25 • Control signal: PCCB CN5-13 (CW/CCW) • Location of electrical component: PC-416 4-J 4. Replace M132. 5. Replace PCCB.

• Code: C0108
• Description: Tray 4 paper feed motor turning at abnormal timing (When PC-216 is installed)
  • The control circuit detects motor failure to turn while the motor is turning. • The control circuit detects motor turning while the motor remains stationary.
• Causes: • Tray 4 paper feed motor (M121) • PC control board (PCCB)
• Troubleshooting Guides: 1. Check the connector between M121-PCCB CN9C for proper connection and correct as necessary. 2. Check the connector of M121 for proper drive coupling and correct as necessary. 3. M121 load check • Check code: 28 • Multi code: 16, 19, 20 • Control signal: PCCB CN9-5 (CW/CCW) • Location of electrical component: PC-216 6-K 4. Replace M121. 5. Replace PCCB.

• Code: C0109
• Description: Tray 4 vertical transport motor turning at abnormal timing (When PC-216 is installed)
  • The control circuit detects motor failure to turn while the motor is turning. • The control circuit detects motor turning while the motor remains stationary.
• Causes: • Tray 4 vertical transport motor (M122) • PC control board (PCCB)
• Troubleshooting Guides: 1. Check the connector between M122-PCCB CN9C for proper connection and correct as necessary. 2. Check the connector of M122 for proper drive coupling and correct as necessary. 3. M122 load check • Check code: 28 • Multi code: 26, 29, 30 • Control signal: PCCB CN9-13 (CW/CCW) • Location of electrical component: PC-216 6-K 4. Replace M122. 5. Replace PCCB.

• Code: C0202
• Description: Tray 1 feeder up/down abnormality
  The tray 1 upper limit sensor (PS25) is not turned ON (blocked) even after the set period of time has elapsed after the paper lift-up operation for the drawer began.
• Causes: • Tray 1 lift-up motor (M12) • Tray 1 upper limit sensor (PS25) • CPU board (CPUB) • Base board (BASEB)
• Troubleshooting Guides: 1. Remove the tray and check to see if a piece of paper is not left inside the machine. 2. Check the connector between M12-relay CN180-BASEB CN25E for proper connection and correct as necessary. 3. Check the connector of M12 for proper drive coupling and correct as necessary. 4. Check the connector between PS25-relay CN30-BASEB CN26E for proper connection and correct as necessary. 5. Check CPUB for proper installation and correct as necessary. 6. PS25 I/O check, sensor check • Control signal: BASEB CN26EA-15 (ON) • Location of electrical component: 11-K 7. M12 load check • Check code: 23 • Multi code: 4 • Control signal: BASEB CN25E-1 (REM) • Location of electrical component: 17-K 8. Replace M12. 9. Replace CPUB.

• Code: C0204
• Description: Tray 2 feeder up/down abnormality
  The tray 2 upper limit sensor (PS22) is not turned ON (blocked) even after the set period of time has elapsed after the paper lift-up operation for the drawer began.
• Causes: • Tray 2 lift-up motor (M13) • Tray 2 upper limit sensor (PS22) • CPU board (CPUB) • Base board (BASEB)
• Troubleshooting Guides: 1. Remove the tray and check to see if a piece of paper is not left inside the machine. 2. Check the connector between M13-relay CN181-BASEB CN25E for proper connection and correct as necessary. 3. Check the connector of M13 for proper drive coupling and correct as necessary. 4. Check the connector between PS22-relay CN40-BASEB CN23E for proper connection and correct as necessary. 5. Check CPUB for proper installation and correct as necessary. 6. PS22 I/O check, sensor check • Control signal: BASEB CN23E-12 (ON) • Location of electrical component: 16-K 7. M13 load check • Check code: 23 • Multi code: 5 • Control signal: BASEB CN25E-10 (REM) • Location of electrical component: 18-K 8. Replace M13. 9. Replace CPUB. 10. Replace BASEB.

• Code: C0206
• Description: Tray 3 feeder up/down abnormality (When PC-116 or PC-216 is installed)
  The tray 3 upper limit sensor (PS116) is not turned ON (blocked) even after the set period of time has elapsed after the paper lift-up operation for the drawer began.
• Causes: • Tray 3 lift-up motor (M113) • Tray 3 upper limit sensor (PS116) • PC control board (PCCB) • CPU board (CPUB) • Base board (BASEB)
• Troubleshooting Guides: 1. Remove the tray and check to see if a piece of paper is not left inside the machine. 2. Check the connector between M113-PCCB CN6C for proper connection and correct as necessary. 3. Check the connector of M113 for proper drive coupling and correct as necessary. 4. Check the connector between PS116-relay CN24-PCCB CN4 for proper connection and correct as necessary. 5. Check CPUB for proper installation and correct as necessary. 6. PS116 I/O check, sensor check • Control signal: PCCB CN4-3 (ON) • Location of electrical component: PC-116/PC-216 7-C 7. M113 load check • Check code: 23 • Multi code: 6 • Control signal: PCCB CN6C-8 to 9 • Location of electrical component: PC-116/PC-216 2-C 8. Replace M113. 9. Replace PCCB. 10. Replace CPUB. 11. Replace BASEB.

• Code: C0208
• Description: Tray 4 feeder up/down abnormality (When PC-216 is installed)
  The tray 4 upper limit sensor (PS126) is not turned ON (blocked) even after the set period of time has elapsed after the paper lift-up operation for the drawer began.
• Causes: • Tray 4 lift-up motor (M123) • Tray 4 upper limit sensor (PS126) • PC control board (PCCB) • CPU board (CPUB) • Base board (BASEB)
• Troubleshooting Guides: 1. Remove the tray and check to see if a piece of paper is not left inside the machine. 2. Check the connector between M123-PCCB CN8C for proper connection and correct as necessary. 3. Check the connector of M123 for proper drive coupling and correct as necessary. 4. Check the connector between PS126-relay CN47-PCCB CN7C for proper connection and correct as necessary. 5. Check CPUB for proper installation and correct as necessary. 6. PS126 I/O check, sensor check • Control signal: PCCB CN7C-3 (ON) • Location of electrical component: PC-216 8-K 7. M123 load check • Check code: 23 • Multi code: 7 • Control signal: PCCB CN8C-8 to 9 • Location of electrical component: PC-216 5-K 8. Replace M123. 9. Replace PCCB. 10. Replace CPUB. 11. Replace BASEB.

• Code: C0210
• Description: Transfer LCT lift failure (When PC-416 is installed)
  • The main tray upper limit sensor (PS136) is not turned ON (blocked) even after the set period of time has elapsed after the paper lift-up operation for the main tray began. • The shifter stop / lower limit position sensor (PS138) is not turned OFF (unblocked) even after the set period of time has elapsed after the paper lift-up operation for the drawer began. • The main tray upper limit sensor (PS136) is not turned ON (blocked) even after the set period of time has elapsed after the paper lift-up operating. • The main tray upper limit sensor (PS136) is not turned OFF (unblocked) even after the set period of time has elapsed after the paper lift-down operation began. • The shifter stop / lower limit position sensor (PS138) is not turned ON (blocked) even after the set period of time has elapsed after the paper lift-down operation began.
• Causes: • Main tray upper limit sensor (PS136) • Shifter stop / lower limit position sensor (PS138) • Elevator motor (M134) • PC control board (PCCB)
• Troubleshooting Guides: 1. Remove the tray and check to see if a piece of paper is not left inside the machine. 2. Check the connector between M134-PCCB CN10L for proper connection and correct as necessary. 3. Check the connector of M134 for proper drive coupling and correct as necessary. 4. Check the connector between PS136-relay CN1-PCCB CN4 for proper connection and correct as necessary. 5. Check the connector between PS138-relay CN16-PCCB CN14L for proper connection and correct as necessary. 6. PS136 I/O check, sensor check • Control signal: PCCB CN4-3 (ON) • Location of electrical component: PC-416 8-J 7. PS138 I/O check, sensor check • Control signal: PCCB CN14L-6 (ON) • Location of electrical component: PC-416 3-J 8. M134 load check • Check code: 23 • Multi code: 9, 10 • Control signal: PCCB CN10L-1 to 2 • Location of electrical component: PC-416 6-J 9. Replace M134. 10. Replace PCCB.

• Code: C0211
• Description: Manual feed up/down abnormality
  • The bypass tray lift-up position sensor (PS26) is not turned OFF (unblock) even after the transport motor (M1) rotates for a given period of time after the position is switched from stand by position at lift-up plate to the feed position. • The bypass lift-up position sensor (PS26) is not turned ON (blocked) even after the transport motor (M1) rotates for a given period of time after the position is switched from stand by position at lift-up plate to the feed position.
• Causes: • Transport motor (M1) • Bypass tray lift-up solenoid (SD1) • Bypass tray lift-up position sensor (PS26) • CPU board (CPUB) • Base board (BASEB)
• Troubleshooting Guides: 1. Check the connector between M1-BASEB CN19E for proper connection and correct as necessary. 2. Check the connector of M1 for proper drive coupling and correct as necessary. 3. Check the connector between PS26-relay CN13-BASEB CN26E for proper connection and correct as necessary. 4. Check the connector between SD1-relay CN21-relay CN13-BASEB CN26E for proper connection and correct as necessary. 5. Check CPUB for proper installation and correct as necessary. 6. PS26 I/O check, sensor check • Control signal: BASEB CN26EA-6 (ON) • Location of electrical component: 9-K 7. SD1 load check • Check code: 23 • Multi code: 3 • Control signal: BASEB CN26EA-9 (ON) • Location of electrical component: 10-K 8. M1 load check • Check code: 40 • Multi code: 1, 4, 5 • Control signal: BASEB CN19EA-1 to 5 • Location of electrical component: 1-C 9. Replace M1. 10. Replace CPUB. 11. Replace BASEB.

• Code: C0214
• Description: Transfer LCT shift failure (When PC-416 is installed)
  • The shifter stop / lower limit position sensor (PS138) is not turned ON (blocked) even after the set period of time has elapsed after the shift operation began (shift to the right). • The shifter home sensor (PS139) is not turned OFF (unblocked) even after the set period of time has elapsed after the shift operation began (shift to the right). • The shifter stop / lower limit position sensor (PS138) is not turned OFF (unblocked) even after the set period of time has elapsed after the return operation began (shift to the left). • The shifter home sensor (PS139) is not turned ON (blocked) even after the set period of time has elapsed after the return operation began (shift to the left).
• Causes: • Shifter stop / lower limit position sensor (PS138) • Shifter home sensor (PS139) • Shifter motor (M133) • PC control board (PCCB)
• Troubleshooting Guides: 1. Remove the tray and check to see if a piece of paper is not left inside the machine. 2. Check the connector between M133-PCCB CN10L for proper connection and correct as necessary. 3. Check the connector of M133 for proper drive coupling and correct as necessary. 4. Check the connector between PS138-relay CN16-PCCB CN14L for proper connection and correct as necessary. 5. Check the connector between PS139-relay CN16-PCCB CN14L for proper connection and correct as necessary. 6. PS138 I/O check, sensor check • Control signal: PCCB CN14L-6 (ON) • Location of electrical component: PC-416 3-J 7. PS139 I/O check, sensor check • Control signal: PCCB CN14L-3 (ON) • Location of electrical component: PC-416 4-J 8. M133 load check • Check code: 23 • Multi code: 11, 12 • Control signal: PCCB CN10L-3 to 4 • Location of electrical component: PC-416 6-J 9. Replace M133. 10. Replace PCCB.

• Code: C0216
• Description: External LCT up/down abnormality (When LU-302 is installed)
  The LU upper limit sensor (PS2) is not turned ON (blocked) even after the set period of time has elapsed after the paper lift-up operation for the drawer began.
• Causes: • LU upper limit sensor (PS2) • LU lift-up motor (M1) • LU drive board (LUDB)
• Troubleshooting Guides: 1. Check the connector between M1-LUDB CN3 for proper connection and correct as necessary. 2. Check the connector of M1 for proper drive coupling and correct as necessary. 3. Check the connector between PS2-relay CN3-LUDB CN5 for proper connection and correct as necessary. 4. PS2 I/O check, sensor check • Control signal: LUDB CN5-3 (ON) • Location of electrical component: LU-302 4-G 5. M1 load check • Check code: 23 • Multi code: 8 • Control signal: LUDB CN3-4 (ON) • Location of electrical component: LU-302 3-G 6. Replace M1. 7. Replace LUDB.

• Code: C1004, C1014
• Description: • C1004: Finisher communication error (Engine detection) • C1014: Finisher communication error (Finisher detection)
  <When FS-533, FS-536, or FS-536SD is installed> When a communication error is detected between the base board (BASEB) and the FS control board (FSCB).
  <When JS-506 is installed> When a communication error is detected between the base board (BASEB) and the JS control board (JSCB).
• Causes: <When FS-533, FS-536, or FS-536SD is installed> • FS control board (FSCB) • Base board (BASEB)
  <When JS-506 is installed> JS control board (JSCB)
• Troubleshooting Guides: When FS-533, FS-536, or FS-536SD is installed 1. Turn OFF the main power switch and unplug the power cord. Connect the power cord after 15 sec. or more, and turn ON the main power switch. 2. Rewrite the firmware. 3. Replace FSCB. (FS-533 / FS-536/FS-536SD) 4. Replace BASEB.
  When JS-506 is installed 1. Turn OFF the main power switch and unplug the power cord. Connect the power cord after 15 sec. or more, and turn ON the main power switch. 2. Rewrite the firmware. 3. Replace JSCB.

• Code: C1081, C1082
• Description: • C1081: SD communication error (Finisher detection) • C1082: SD communication error (SD detection)
  <When FS-536SD is installed> When a communication error is detected between the FS control board (FSCB) and the SD control board (SDCB).
• Causes: • SD control board (SDCB) • FS control board (FSCB)
• Troubleshooting Guides: 1. Turn OFF the main power switch and unplug the power cord. Connect the power cord after 15 sec. or more, and turn ON the main power switch. 2. Rewrite the firmware. 3. Replace SDCB. 4. Replace FSCB.

• Code: C1102
• Description: Main tray up/down motor drive malfunction
  <When FS-533 is installed> • While the exit tray is being lifted, the paper exit tray home sensor (PS107) is not turned OFF (unblocked) after the set period of time has elapsed after the tray lift up motor (M109) is turned ON. • While the exit tray is being lowered, the paper exit tray home sensor (PS107) is not turned ON (blocked) after the set period of time has elapsed after the tray lift up motor (M109) is turned ON.
  <When FS-536 or FS-536SD is installed> • While the exit tray is being lifted, the main tray upper position sensor (PS26/PS27) is not turned ON (blocked) and the main tray upper position detect switch (SW2) is not turned ON, even after the main tray up/down motor (M11) turns by the set number of times. • While the exit tray is being lowered, the main tray full detection sensor (PS29) is not turned ON (blocked) after the set period of time has elapsed after the main tray up/down motor (M11) is turned ON.
• Causes: <When FS-533 is installed> • Tray lift up motor (M109) • Paper exit tray home sensor (PS107) • FS control board (FSCB)
  <When FS-536 or FS-536SD is installed> • Main tray up/down motor (M11) • Main tray upper position sensor/Rr (PS26) • Main tray upper position sensor/Fr (PS27) • Main tray full detection sensor (PS29) • Main tray upper position detect switch (SW2) • FS control board (FSCB)
• Troubleshooting Guides: When FS-533 is installed 1. Check the connector between M109-FSCB CN108 for proper connection and correct as necessary. 2. Check the connector of M109 for proper drive coupling and correct as necessary. 3. Check the connector between PS107-FSCB CN110 for proper connection and correct as necessary. 4. PS107 I/O check, sensor check • Control signal: FSCB CN110 • Location of electrical component: FS-533 7-D to E 5. M109 operation check • Control signal: FSCB CN108 • Location of electrical component: FS-533 10-E 6. Replace M109. 7. FSCB CP109 conduction check 8. Replace FSCB.
  When FS-536 or FS-536SD is installed 1. Check the connector between M11-FSCB J9 for proper connection and correct as necessary. 2. Check the connector of M11 for proper drive coupling and correct as necessary. 3. Check the connector between PS26-relay CN1-FSCB J14 for proper connection and correct as necessary. 4. Check the connector between PS27-relay CN1-FSCB J14 for proper connection and correct as necessary. 5. Check the connector between PS29-relay CN2-FSCB J14 for proper connection and correct as necessary. 6. Check the connector between SW2-FSCB J10 for proper connection and correct as necessary. 7. PS26 I/O check, sensor check • Control signal: FSCB J14<A>-5 (ON) • Location of electrical component: FS-536/FS-536SD 2-C 8. PS27 I/O check, sensor check • Control signal: FSCB J14<B>-6 (ON) • Location of electrical component: FS-536/FS-536SD 3-C 9. PS29 I/O check, sensor check • Control signal: FSCB J14<A>-8 (ON) • Location of electrical component: FS-536/FS-536SD 4-C 10. SW2 operation check • Control signal: FSCB J10-1 to 2 • Location of electrical component: FS-536/FS-536SD 15-K 11. M11 operation check • Control signal: FSCB J9<A>-9 to 10 • Location of electrical component: FS-536/FS-536SD 12-C 12. Replace M11. 13. FSCB F2 conduction check 14. Replace FSCB.

• Code: C1103
• Description: Alignment motor/Fr drive malfunction
  <When FS-533 is installed> • The alignment plate/Fr home sensor (PS108) is not turned OFF (unblocked) after the set period of time has elapsed after the plate drive starts from the home position. • The alignment plate home sensor/Fr (PS108) is not turned ON (blocked) after the set period of time has elapsed after the alignment motor/Fr (M105) is turned ON to return the plate to the home position.
  <When FS-536 or FS-536SD is installed> • The alignment plate/Fr home sensor (PS12) is not turned OFF (unblocked) after the set period of time has elapsed after the plate drive starts from the home position. • The alignment plate/Fr home sensor (PS12) is not turned ON (blocked) after the set period of time has elapsed after the alignment motor/Fr (M7) is turned ON to return the plate to the home position. • The alignment plate/F does not reach the specified position within the set period of time.
• Causes: <When FS-533 is installed> • Alignment motor/Fr (M105) • Alignment plate/Fr home sensor (PS108) • FS control board (FSCB)
  <When FS-536 or FS-536SD is installed> • Alignment motor/Fr (M7) • Alignment plate/Fr home sensor (PS12) • FS control board (FSCB)
• Troubleshooting Guides: When FS-533 is installed 1. Check the connector between M105-FSCB CN102 for proper connection and correct as necessary. 2. Check the connector of M105 for proper drive coupling and correct as necessary. 3. Check the connector between PS108-FSCB CN102 for proper connection and correct as necessary. 4. PS108 I/O check, sensor check • Control signal: FSCB CN102 • Location of electrical component: FS-533 7-J 5. M105 operation check • Control signal: FSCB CN102 • Location of electrical component: FS-533 7-J 6. Replace M105. 7. FSCB CP105 conduction check 8. Replace FSCB.
  When FS-536 or FS-536SD is installed 1. Check the connector between M7-FSCB J4 for proper connection and correct as necessary. 2. Check the connector of M7 for proper drive coupling and correct as necessary. 3. Check the connector between PS12-FSCB J4 for proper connection and correct as necessary. 4. PS12 I/O check, sensor check • Control signal: FSCB J4<B>-4 (ON) • Location of electrical component: FS-536/FS-536SD 15-C 5. M7 operation check • Control signal: FSCB J4<A>-5 to 8 • Location of electrical component: FS-536/FS-536SD 14-C 6. Replace M7. 7. Replace FSCB.

• Code: C1105
• Description: Bundle eject motor drive malfunction
  <When FS-536 or FS-536SD is installed> • The gripper home position sensor (PS18) is not turned ON (unblocked) even after the set period of time has elapsed after the gripper position detection sensor (PS19) turns OFF (block). • The gripper position detection sensor (PS19) is not turned OFF (blocked) even after the set period of time has elapsed after PS19 turns ON (unblock). • The gripper position detection sensor (PS19) is not turned ON (unblocked) even after the set period of time has elapsed after the gripper home position sensor (PS18) turns OFF (block). • The gripper home position sensor (PS18) is not turned OFF (blocked) even after the set period of time has elapsed after the bundle eject motor (M10) is energized. • The gripper home position sensor (PS18) and the gripper position detection sensor (PS19) is turned ON (unblocked) at the same time.
• Causes: <When FS-536 or FS-536SD is installed> • Bundle eject motor (M10) • Gripper home position sensor (PS18) • Gripper position detection sensor (PS19) • FS control board (FSCB)
• Troubleshooting Guides: 1. Check the connector between M10-relay CN7<A>-FSCB J13 for proper connection and correct as necessary. 2. Check the connector of M10 for proper drive coupling and correct as necessary. 3. Check the connector between PS18-relay CN7<A>-FSCB J13 for proper connection and correct as necessary. 4. Check the connector between PS19-relay CN7<B>-FSCB J12 for proper connection and correct as necessary. 5. PS18 I/O check, sensor check • Control signal: FSCB J13-13 (ON) • Location of electrical component: FS-536/FS-536SD 8-C 6. PS19 I/O check, sensor check • Control signal: FSCB J12-3 (ON) • Location of electrical component: FS-536/FS-536SD 7-C 7. M10 operation check • Control signal: FSCB J13-1 to 2 • Location of electrical component: FS-536/FS-536SD 9-C 8. Replace M10. 9. Replace FSCB.

• Code: C1106
• Description: Stapler movement motor malfunction
  <When FS-533 is installed> • The stapler home sensor (PS110) is not turned OFF (unblocked) after the laps of given time after it started operating from the home position. • The stapler home sensor (PS110) is not turned ON (blocked) after the laps of give time after the stapler movement motor (M107) turned ON when it returned to the home position.
  <When FS-536 or FS-536SD is installed> • The stapler home position sensor/Rr (PS23) is not turned OFF (unblocked) or ON (blocked) even after the set period of time has elapsed after the side stapler movement motor (M13) turned ON. • The stapler does not reach the specified position within the set period of time.
• Causes: <When FS-533 is installed> • Stapler movement motor (M107) • Stapler home sensor (PS110) • Stapler relay board (STRYB) • FS control board (FSCB)
  <When FS-536 or FS-536SD is installed> • Side stapler movement motor (M13) • Stapler home position sensor/Rr (PS23) • FS control board (FSCB)
• Troubleshooting Guides: When FS-533 is installed 1. Check the connector between M107-STREYB CN123 for proper connection and correct as necessary. 2. Check the connector of M107 for proper drive coupling and correct as necessary. 3. Check the connector between PS110-FSCB CN110 for proper connection and correct as necessary. 4. PS110 I/O check, sensor check • Control signal: FSCB CN110 • Location of electrical component: FS-533 8-D to E 5. M107 operation check • Control signal: STRYB CN123-5 to 8 • Location of electrical component: FS-533 5-L 6. Replace M107. 7. Replace STRYB. 8. FSCB CP107 conduction check 9. Replace FSCB.
  When FS-536 or FS-536SD is installed 1. Check the connector between M13-relay CN3-FSCB J11 for proper connection and correct as necessary. 2. Check the connector of M13 for proper drive coupling and correct as necessary. 3. Check the connector between PS23-relay CN3-FSCB J11 for proper connection and correct as necessary. 4. PS23 I/O check, sensor check • Control signal: FSCB J11<B>-3 (ON) • Location of electrical component: FS-536/FS-536SD 4-C 5. M13 operation check • Control signal: FSCB J11<A>-1 to 4 • Location of electrical component: FS-536/FS-536SD 4-C 6. Replace M13. 7. Replace FSCB.

• Code: C1109
• Description: Stapler motor drive malfunction
  <When FS-533 is installed> The stapler home sensor (PS110) is not turned ON (blocked) even after the set period of time has elapsed after the stapler motor turned ON.
  <When FS-536 or FS-536SD is installed> • The stapler home position sensor/Rr (PS23) is not turned OFF (unblocked) or ON (blocked) even after the set period of time has elapsed after the stapler motor turned ON. • The stapler position sensor/Ctr (PS24) is turned ON (blocked), when the stapler motor is running.
• Causes: <When FS-533 is installed> • Stapler home sensor (PS110) • Stapler unit • Stapler relay board (STRYB) • FS control board (FSCB)
  <When FS-536 or FS-536SD is installed> • Stapler unit • Stapler home position sensor/Rr (PS23) • Stapler position sensor/Ctr (PS24) • FS control board (FSCB)
• Troubleshooting Guides: When FS-533 is installed 1. Check the connector between the stapler unit-STRYB CN122, CN123 for proper connection and correct as necessary. 2. Check the connector of the stapler unit for proper drive coupling and correct as necessary. 3. Check the connector between PS110-FSCB CN110 for proper connection and correct as necessary. 4. PS110 I/O check, sensor check • Control signal: FSCB CN110 • Location of electrical component: FS-533 8-D to E 5. Replace the stapler unit. 6. Replace STRYB. 7. Replace FSCB.
  When FS-536 or FS-536SD is installed 1. Check the connector between the stapler unit-relay CN4-FSCB J11 for proper connection and correct as necessary. 2. Check the connector of the stapler unit for proper drive coupling and correct as necessary. 3. Check the connector between PS23-relay CN3-FSCB J11 for proper connection and correct as necessary. 4. Check the connector between PS24-relay CN3-FSCB J11 for proper connection and correct as necessary. 5. PS23 I/O check, sensor check • Control signal: FSCB J11<B>-3 (ON) • Location of electrical component: FS-536/FS-536SD 4-C 6. PS24 I/O check, sensor check • Control signal: FSCB J11<B>-6 (ON) • Location of electrical component: FS-536/FS-536SD 5-C 7. Replace the stapler unit. 8. Replace FSCB.

• Code: C1112
• Description: Stapler motor malfunction
  <When FS-536SD is installed> • The stapler home sensor is not turned ON even after the set period of time has elapsed while the stapler motor is energized. • The stapler home sensor is not turned OFF even after the set period of time has elapsed after the stapler home sensor is turned ON.
• Causes: <When FS-536SD is installed> • Staple unit • SD control board (SDCB) • FS control board (FSCB)
• Troubleshooting Guides: 1. Check the connector between the staple unit-SDCB J4 for proper connection and correct as necessary. 2. Check the connector of the staple unit for proper drive coupling and correct as necessary. 3. Replace the staple unit. 4. Replace SDCB. 5. Replace FSCB.

• Code: C1113
• Description: Stopper drive motor malfunction
  <When FS-536SD is installed> The stopper home sensor (PS6) is not turned OFF (unblocked) or ON (blocked) even after the set period of time has elapsed after the stopper drive motor (M4) is turned ON.
• Causes: <When FS-536SD is installed> • Stopper drive motor (M4) • Stopper home sensor (PS6) • SD control board (SDCB) • FS control board (FSCB)
• Troubleshooting Guides: 1. Check the connector between M4-SDCB J10 for proper connection and correct as necessary. 2. Check the connector of M4 for proper drive coupling and correct as necessary. 3. Check the connector between PS6-SDCB J10 for proper connection and correct as necessary. 4. PS6 I/O check, sensor check • Control signal: SDCB J10-5 (ON) • Location of electrical component: FS-536/FS-536SD 2-P 5. M4 operation check • Control signal: SDCB J10-6 to 9 • Location of electrical component: FS-536/FS-536SD 2-P 6. Replace M4. 7. Replace SDCB. 8. Replace FSCB.

• Code: C1114
• Description: Alignment motor malfunction
  <When FS-536SD is installed> The alignment home sensor (PS4) is not turned OFF (unblocked) or ON (blocked) even after the set period of time has elapsed after the alignment motor (M3) is turned ON.
• Causes: <When FS-536SD is installed> • Alignment motor (M3) • Alignment home sensor (PS4) • SD control board (SDCB) • FS control board (FSCB)
• Troubleshooting Guides: 1. Check the connector between M3-relay CN26-SDCB J7 for proper connection and correct as necessary. 2. Check the connector of M3 for proper drive coupling and correct as necessary. 3. Check the connector between PS4-relay CN26-SDCB J7 for proper connection and correct as necessary. 4. PS4 I/O check, sensor check • Control signal: SDCB J7-6 (ON) • Location of electrical component: FS-536/FS-536SD 6-P 5. M3 operation check • Control signal: SDCB J7-7 to 10 • Location of electrical component: FS-536/FS-536SD 6-P 6. Replace M3. 7. Replace SDCB. 8. Replace FSCB.

• Code: C1115
• Description: Center fold knife motor malfunction
  <When FS-536SD is installed> The center fold knife home sensor (PS8) is not turned OFF (unblocked) or ON (blocked) even after the set period of time has elapsed after the center fold knife motor (M9) is turned ON.
• Causes: <When FS-536SD is installed> • Center fold knife motor (M9) • Center fold knife home sensor (PS8) • SD control board (SDCB) • FS control board (FSCB)
• Troubleshooting Guides: 1. Check the connector between M9-SDCB J11 for proper connection and correct as necessary. 2. Check the connector of M9 for proper drive coupling and correct as necessary. 3. Check the connector between PS8-relay CN26-SDCB J7 for proper connection and correct as necessary. 4. PS8 I/O check, sensor check • Control signal: SDCB J7-3 (ON) • Location of electrical component: FS-536/FS-536SD 7-P 5. M9 operation check • Control signal: SDCB J11-11 to 20 • Location of electrical component: FS-536/FS-536SD 2-L 6. Replace M9. 7. Replace SDCB. 8. Replace FSCB.

• Code: C1132
• Description: Punch drive motor drive malfunction
  <When FS-533+PK-519 is installed> • The puncher drive cam sensor (PS203) or puncher home sensor (PS204) is not turned ON (blocked) or OFF (unblocked) even after the set period of time has elapsed while the punch motor (M201) is energized. • The punch motor sensor (PS202) is not turned ON when the punch motor (M201) driven. • The holes with other marketing area is set in [Service Mode] -> [Finisher] -> [Punch option setting].
  <When FS-536+PK-520 or FS-536SD+PK-520 is installed> The punch home sensor (PS1) is not turned ON (unblocked) or OFF (blocked) even after the set period of time has elapsed while the punch drive motor (M1) is energized.
• Causes: <When FS-533+PK-519 is installed> • Punch motor (M201) • Punch motor sensor (PS202) • Puncher drive cam sensor (PS203) • Puncher home sensor (PS204) • PK control board (PKCB) • FS control board (FSCB)
  <When FS-536+PK-520 or FS-536SD+PK-520 is installed> • Punch drive motor (M1) • Punch home sensor (PS1) • FS control board (FSCB)
• Troubleshooting Guides: When FS-533+PK-519 is installed 1. Check the number of the holes in [Service Mode] -> [Finisher] -> [Punch option setting]. 2. Check the connector between M201-PKCB CN203 for proper connection and correct as necessary. 3. Check the connector of M201 for proper drive coupling and correct as necessary. 4. Check the connector between PS202-PKCB CN204 for proper connection and correct as necessary. 5. Check the connector between PS203-PKCB CN204 for proper connection and correct as necessary. 6. Check the connector between PS204-PKCB CN204 for proper connection and correct as necessary. 7. PS202 I/O check, sensor check • Control signal: PKCB CN204 • Location of electrical component: FS-533 (PK-519) 5-C 8. PS203 I/O check, sensor check • Control signal: PKCB CN204 • Location of electrical component: FS-533 (PK-519) 6-C 9. PS204 I/O check, sensor check • Control signal: PKCB CN204 • Location of electrical component: FS-533 (PK-519) 6-C 10. M201 operation check • Control signal: PKCB CN203-1 to 2 • Location of electrical component: FS-533 (PK-519) 4-C 11. Replace M201. 12. PKCB F201 conduction check. 13. Replace PKCB. 14. Replace FSCB.
  When FS-536+PK-520 or FS-536SD+PK-520 is installed 1. Check the connector between M1-relay CN351-FSCB J7 for proper connection and correct as necessary. 2. Check the connector of M1 for proper drive coupling and correct as necessary. 3. Check the connector between PS1-FSCB J7 for proper connection and correct as necessary. 4. PS1 I/O check, sensor check • Control signal: FSCB J7-5 (ON) • Location of electrical component: FS-536/FS-536SD 13-K 5. M1 operation check • Control signal: FSCB J7-7 to 8 • Location of electrical component: FS-536/FS-536SD 13-K 6. Replace M1. 7. Replace FSCB.

• Code: C1140
• Description: Alignment motor/Rr drive malfunction
  <When FS-533 is installed> • The alignment plate home sensor/Rr (PS109) is not turned OFF (unblocked) after the set period of time has elapsed after the plate drive starts from the home position. • The alignment plate home sensor/Rr (PS109) is not turned ON (blocked) after the set period of time has elapsed while the alignment motor/Rr (M106) is energized when the plate returns to the home position.
  <When FS-536 or FS-536SD is installed> The alignment plate/Rr home sensor (PS13) is not turned OFF (unblocked) or ON (blocked) even after the set period of time has elapsed while the alignment motor/Rr (M8) is energized.
• Causes: <When FS-533 is installed> • Alignment motor/Rr (M106) • Alignment plate home sensor/Rr (PS109) • FS control board (FSCB)
  <When FS-536 or FS-536SD is installed> • Alignment motor/Rr (M8) • Alignment plate/Rr home sensor (PS13) • FS control board (FSCB)
• Troubleshooting Guides: When FS-533 is installed 1. Check the connector between M106-FSCB CN102 for proper connection and correct as necessary. 2. Check the connector of M106 for proper drive coupling and correct as necessary. 3. Check the connector between PS109-FSCB CN102 for proper connection and correct as necessary. 4. PS109 I/O check, sensor check • Control signal: FSCB CN102 • Location of electrical component: FS-533 7-J 5. M106 operation check • Control signal: FSCB CN102 • Location of electrical component: FS-533 8-J 6. Replace M106. 7. FSCB CP105 conduction check 8. Replace FSCB.
  When FS-536 or FS-536SD is installed 1. Check the connector between M8-FSCB J12 for proper connection and correct as necessary. 2. Check the connector of M8 for proper drive coupling and correct as necessary. 3. Check the connector between PS13-FSCB J9 for proper connection and correct as necessary. 4. PS13 I/O check, sensor check • Control signal: FSCB J9<B>-11 (ON) • Location of electrical component: FS-536/FS-536SD 10-C 5. M8 operation check • Control signal: FSCB J12-13 to 16 (ON) • Location of electrical component: FS-536/FS-536SD 6-C 6. Replace M8. 7. Replace FSCB.

• Code: C1141
• Description: FNS paddle motor malfunction
  <When FS-536 or FS-536SD is installed> The upper paddle home position detection sensor (PS14) is not turned OFF (blocked) or ON (unblocked) even after the set period of time has elapsed while the FNS paddle motor (M5) is turning.
• Causes: <When FS-536 or FS-536SD is installed> • FNS paddle motor (M5) • Upper paddle home position detection sensor (PS14) • FS control board (FSCB)
• Troubleshooting Guides: 1. Check the connector between M5-FSCB J4 for proper connection and correct as necessary. 2. Check the connector of M5 for proper drive coupling and correct as necessary. 3. Check the connector between PS14-FSCB J4 for proper connection and correct as necessary. 4. PS14 I/O check, sensor check • Control signal: FSCB J4<B>-7 (ON) • Location of electrical component: FS-536/FS-536SD 15-C 5. M5 operation check • Control signal: FSCB J4<A>-9 to 12 • Location of electrical component: FS-536/FS-536SD 14-C 6. Replace M5. 7. Replace FSCB.

• Code: C1144
• Description: Pre-eject drive motor drive malfunction
  <When FS-536 or FS-536SD is installed> • The pre-eject home sensor (PS21) is not turned OFF (unblocked) or ON (blocked) even after the set period of time has elapsed after the pre-eject drive motor (M9) is turned ON. • The pre-eject away sensor (PS22) is not turned ON (blocked) or OFF (unblocked) even after the set period of time has elapsed after the preeject drive motor (M9) is turned ON.
• Causes: <When FS-536 or FS-536SD is installed> • Pre-eject drive motor (M9) • Pre-eject home sensor (PS21) • Pre-eject away sensor (PS22) • FS control board (FSCB)
• Troubleshooting Guides: 1. Check the connector between M9-relay CN7<A>-FSCB J13 for proper connection and correct as necessary. 2. Check the connector of M9 for proper drive coupling and correct as necessary. 3. Check the connector between PS21-relay CN8-relay CN7<B>-FSCB J12 for proper connection and correct as necessary. 4. Check the connector between PS22-relay CN8-relay CN7<B>-FSCB J12 for proper connection and correct as necessary. 5. PS21 I/O check, sensor check • Control signal: FSCB J12-6 (ON) • Location of electrical component: FS-536/FS-536SD 7-C 6. PS22 I/O check, sensor check • Control signal: FSCB J12-9 (ON) • Location of electrical component: FS-536/FS-536SD 7-C 7. M9 operation check • Control signal: FSCB J13-3 to 4 • Location of electrical component: FS-536/FS-536SD 9-C 8. Replace M9. 9. Replace FSCB.

• Code: C1145
• Description: Trailing edge stopper motor malfunction
  <When FS-536 or FS-536SD is installed> The trailing edge stopper home position detection sensor (PS20) is not turned OFF (unblocked) or ON (blocked) even after the set period of time has elapsed after the trailing edge stopper motor (M6) is turned ON.
• Causes: <When FS-536 or FS-536SD is installed> • Trailing edge stopper motor (M6) • Trailing edge stopper home position detection sensor (PS20) • FS control board (FSCB)
• Troubleshooting Guides: 1. Check the connector between M6-FSCB J5 for proper connection and correct as necessary. 2. Check the connector of M6 for proper drive coupling and correct as necessary. 3. Check the connector between PS20-relay CN19-FSCB J5 for proper connection and correct as necessary. 4. PS20 I/O check, sensor check • Control signal: FSCB J5-9 (ON) • Location of electrical component: FS-536/FS-536SD 15-K 5. M6 operation check • Control signal: FSCB J5-13 to 16 • Location of electrical component: FS-536/FS-536SD 15-K 6. Replace M6. 7. Replace FSCB.

• Code: C1156
• Description: SD paddle motor malfunction
  <When FS-536SD is installed> The paddle home sensor (PS5) is not turned OFF (blocked) or ON (unblocked) even after the set period of time has elapsed while the SD paddle motor (M7) is turning.
• Causes: <When FS-536SD is installed> • SD paddle motor (M7) • Paddle home sensor (PS5)
• Troubleshooting Guides: 1. Check the connector between M7-SDCB J8 for proper connection and correct as necessary. 2. Check the connector of M7 for proper drive coupling and correct as necessary. 3. Check the connector between PS5-SDCB J8 for proper connection and correct as necessary. 4. PS5 I/O check, sensor check • Control signal: SDCB J8-3 (ON) • Location of electrical component: FS-536/FS-536SD 4-P 5. M7 operation check • Control signal: SDCB J8-4 to 7 • Location of electrical component: FS-536/FS-536SD 4-P 6. Replace M7. 7. Replace SDCB. 8. Replace FSCB.

• Code: C1182
• Description: Shift motor drive malfunction
  <When JS-506 is installed> • The tray shift home sensor (PS1) is not turned ON (blocked) after the set period of time has elapsed after the tray shift motor (M1) is turned ON (start of moving to the home position.) • The tray shift home sensor (PS1) is not turned OFF (unblocked) after the set period of time has elapsed after the tray shift motor (M1) is turned ON (start of moving to the shift position.)
• Causes: <When JS-506 is installed> • Tray shift motor (M1) • Tray shift home sensor (PS1) • JS control board (JSCB)
• Troubleshooting Guides: 1. Check the connector between M1-JSCB CN208 for proper connection and correct as necessary. 2. Check the connector of M1 for proper drive coupling and correct as necessary. 3. Check the connector between PS1-JSCB CN208 for proper connection and correct as necessary. 4. PS1 I/O check, sensor check • Control signal: JSCB CN208-5 (ON) • Location of electrical component: JS-506 5-C 5. M1 operation check • Control signal: JSCB CN208-1 (DRV) • Location of electrical component: JS-506 4 to 5-C 6. Replace M1. 7. JSCB ICP3 conduction check 8. Replace JSCB.

• Code: C1184
• Description: Paper receiving control motor drive malfunction
  <When FS-536 or FS-536SD is installed> The paper delivery control sensor (PS28) is not turned OFF (unblocked) or ON (blocked) even after the set period of time has elapsed while the paper receiving control motor (M12) is energized.
• Causes: <When FS-536 or FS-536SD is installed> • Paper receiving control motor (M12) • Paper delivery control sensor (PS28) • FS control board (FSCB)
• Troubleshooting Guides: 1. Check the connector between M12-relay CN1-FSCB J14 for proper connection and correct as necessary. 2. Check the connector of M12 for proper drive coupling and correct as necessary. 3. Check the connector between PS28-relay CN1-FSCB J14 for proper connection and correct as necessary. 4. PS28 I/O check, sensor check • Control signal: FSCB J14<B>-3 (ON) • Location of electrical component: FS-536/FS-536SD 2 to 3-C 5. M12 operation check • Control signal: FSCB J14<A>-9 to 12 • Location of electrical component: FS-536/FS-536SD 2-C 6. Replace M12. 7. Replace FSCB.

• Code: C1195
• Description: Paper discharge control motor malfunction
  <When FS-536SD is installed> The curl cover detection sensor (PS2) is not turned OFF (unblocked) or ON (blocked) even after the set period of time has elapsed after the paper discharge control motor (M2) is turned ON.
• Causes: <When FS-536SD is installed> • Paper discharge control motor (M2) • Curl cover detection sensor (PS2) • SD control board (SDCB) • FS control board (FSCB)
• Troubleshooting Guides: 1. Check the connector between M2-relay CN22-relay CN21-SDCB J5 for proper connection and correct as necessary. 2. Check the connector of M2 for proper drive coupling and correct as necessary. 3. Check the connector between PS2-relay CN22-relay CN21-SDCB J5 for proper connection and correct as necessary. 4. PS2 I/O check, sensor check • Control signal: SDCB J5-3 (ON) • Location of electrical component: FS-536/FS-536SD 4-L 5. M2 operation check • Control signal: SDCB J5-4 to 7 • Location of electrical component: FS-536/FS-536SD 4-L 6. Replace M2. 7. Replace SDCB. 8. Replace FSCB.

• Code: C1196
• Description: Center fold guide motor malfunction
  When FS-536SD is installed> The guide home sensor (PS7) is not turned OFF (unblocked) or ON (blocked) even after the set period of time has elapsed after the center fold guide motor (M6) is turned ON.
• Causes: <When FS-536SD is installed> • Center fold guide motor (M6) • Guide home sensor (PS7) • SD control board (SDCB) • FS control board (FSCB)
• Troubleshooting Guides: 1. Check the connector between M6-SDCB J9 for proper connection and correct as necessary. 2. Check the connector of M6 for proper drive coupling and correct as necessary. 3. Check the connector between PS7-SDCB J9 for proper connection and correct as necessary. 4. PS7 I/O check, sensor check • Control signal: SDCB J9-6 (ON) • Location of electrical component: FS-536/FS-536SD 5-P 5. M6 operation check • Control signal: SDCB J9-7 to 10 • Location of electrical component: FS-536/FS-536SD 4-P 6. Replace M6. 7. Replace SDCB. 8. Replace FSCB.

• Code: C1197
• Description: Tri-folding guide motor drive malfunction
  <When FS-536SD is installed> The tri-folding gate home sensor (PS11) is not turned OFF (blocked) or ON (unblocked) even after the set period of time has elapsed while the tri-folding guide motor (M8) is energized.
• Causes: <When FS-536SD is installed> • Tri-folding guide motor (M8) • Tri-folding gate home sensor (PS11) • SD control board (SDCB) • FS control board (FSCB)
• Troubleshooting Guides: 1. Check the connector between M8-SDCB J8 for proper connection and correct as necessary. 2. Check the connector of M8 for proper drive coupling and correct as necessary. 3. Check the connector between PS11-SDCB J8 for proper connection and correct as necessary. 4. PS11 I/O check, sensor check • Control signal: SDCB J8-10 (ON) • Location of electrical component: FS-536/FS-536SD 3-P 5. M8 operation check • Control signal: SDCB J8-11 to 14 • Location of electrical component: FS-536/FS-536SD 3-P 6. Replace M8. 7. Replace SDCB. 8. Replace FSCB.

• Code: C11A1
• Description: Exit roller pressure/ retraction malfunction
  <When FS-533 is installed> The pick up roller position sensor (PS105) is not turned ON (blocked) or OFF (unblocked) even after the set period of time has elapsed after the exit roller lift up motor (M104) is turned ON.
• Causes: <When FS-533 is installed> • Exit roller lift up motor (M104) • Pick up roller position sensor (PS105) • FS control board (FSCB)
• Troubleshooting Guides: 1. Check the connector between M104-FSCB CN109 for proper connection and correct as necessary. 2. Check the connector of M104 for proper drive coupling and correct as necessary. 3. Check the connector between PS105-FSCB CN110 for proper connection and correct as necessary. 4. PS105 I/O check, sensor check • Control signal: FSCB CN110 • Location of electrical component: FS-533 7-D to E 5. M104 operation check • Control signal: FSCB CN109 • Location of electrical component: FS-533 9-D to E 6. Replace M104. 7. FSCB CP104 conduction check 8. Replace FSCB.

• Code: C11A2
• Description: Receiving roller retraction motor drive malfunction
  <When FS-536 or FS-536SD is installed> The receiving roller retraction sensor (PS11) is not turned OFF (blocked) or ON (unblocked) even after the set period of time has elapsed after the receiving roller retraction motor (M4) is turned ON.
• Causes: <When FS-536 or FS-536SD is installed> • Receiving roller retraction motor (M4) • Receiving roller retraction sensor (PS11) • FS control board (FSCB)
• Troubleshooting Guides: 1. Check the connector between M4-FSCB J4 for proper connection and correct as necessary. 2. Check the connector of M4 for proper drive coupling and correct as necessary. 3. Check the connector between PS11-FSCB J4 for proper connection and correct as necessary. 4. PS11 I/O check, sensor check • Control signal: FSCB J4<B>-16 (ON) • Location of electrical component: FS-536/FS-536SD 16-C 5. M4 operation check • Control signal: FSCB J4<A>-1 to 4 • Location of electrical component: FS-536/FS-536SD 13-C 6. Replace M4. 7. Replace FSCB.

• Code: C11E1
• Description: Paper exit switching drive malfunction
  <When FS-536 or FS-536SD is installed> The exchange folded paper output sensor (PS30) is not turned OFF (unblocked) or ON (blocked) even after the set period of time has elapsed after the FNS entry transport motor (M2) is turned ON.
• Causes: <When FS-536 or FS-536SD is installed> • FNS entry transport motor (M2) • Exchange folded paper output sensor (PS30) • FS control board (FSCB)
• Troubleshooting Guides: 1. Check the connector between M2-FSCB J9 for proper connection and correct as necessary. 2. Check the connector of M2 for proper drive coupling and correct as necessary. 3. Check the connector between PS30-FSCB J4 for proper connection and correct as necessary. 4. PS30 I/O check, sensor check • Control signal: FSCB J4<A>-15 (ON) • Location of electrical component: FS-536/FS-536SD 14-C 5. M2 operation check • Control signal: FSCB J9<A>-1 to 4 • Location of electrical component: FS-536/FS-536SD 12-C 6. Replace M2. 7. Replace FSCB.

• Code: C1402
• Description: FS nonvolatile memory error
  <When FS-533 is installed> When the main power switch is turned ON, malfunctioning of the nonvolatile memory on the FS control board (FSCB) is detected.
• Causes: <When FS-533 is installed> FS control board (FSCB)
• Troubleshooting Guides: 1. Turn OFF the main power switch and unplug the power cord. Connect the power cord after 15 sec. or more, and turn ON the main power switch. 2. Rewrite the firmware. 3. Replace FSCB.

• Code: C2152 … C2156
• Description: • C2152: Transfer belt fault at initial position return • C2153: Transfer belt spacing fault at K pressure switching • C2154: Transfer belt contact fault at all pressure switching • C2155: Transfer belt contact fault after K pressure established • C2156: Transfer belt spacing fault after all pressure established
  • C2152: The 1st transfer pressure sensor (PS39) is unable to detect ‘switch from retraction to pressure’ or ‘switch from pressure to retraction’ within a given period time after the 1st transfer pressure clutch (CL5) has stared engagement during an initial position return. • C2153: The 1st transfer pressure sensor (PS39) does not detect “switch from pressure to retraction” within a given period time after 1st transfer pressure clutch (CL5) has stared engagement. • C2154: The 1st transfer pressure sensor (PS39) does not detect “switch from retraction to pressure” within a given period time after 1st transfer pressure clutch (CL5) has stared engagement. • C2155: The 1st transfer pressure sensor (PS39) is turned ON (blocked) after the lapse of given time after the 1st transfer pressure clutch (CL5) turned OFF when the release operation is finished. • C2156: The 1st transfer pressure sensor (PS39) is turned OFF (unblocked) after the lapse of given time after the 1st transfer pressure clutch (CL5) turned OFF when the pressing operation is finished.
• Causes: • Fusing motor (M3) • 1st transfer pressure clutch (CL5) • 1st transfer pressure sensor (PS39) • Expansion control board (EXCB) • CPU board (CPUB) • Base board (BASEB)
• Troubleshooting Guides: 1. Check the connector between M3-BASEB CN19E for proper connection and correct as necessary. 2. Check the connector of M3 for proper drive coupling and correct as necessary. 3. Check the connector between PS39-relay CN113-BASEB CN13E for proper connection and correct as necessary. 4. Check the connector between CL5-relay CN118-EXCB CN14EX for proper connection and correct as necessary. 5. Check the connector between EXCB CN2EX-BASEB CN12E for proper connection and correct as necessary. 6. Check CPUB for proper installation and correct as necessary. 7. PS39 I/O check, sensor check • Control signal: BASEB CN13E-3 (ON) • Location of electrical component: 11-C 8. CL5 load check • Check code: 24 • Multi code: 1, 2, 102, 103, 106, 107 • Control signal: EXCB CN14EX-9 (REM) • Location of electrical component: 6-P 9. M3 load check • Check code: 45 • Multi code: 1, 4, 5, 6 • Control signal: BASEB CN19EA-6 to 10 • Location of electrical component: 1-C 10. Replace M3. 11. Replace EXCB. 12. Replace CPUB. 13. Replace BASEB.

• Code: C2204
• Description: Waste toner transport motor failure to turn
  The turning detection sensor does not change even after the lapse of a predetermined period of time.
• Causes: • Waste toner box set sensor (PS46) • Waste toner transport motor (M20) • Expansion control board (EXCB) • CPU board (CPUB) • Base board (BASEB)
• Troubleshooting Guides: 1. Clean the PS46 if it has toner or paper dust, etc. 2. Replacing the waste toner box. 3. Check the connector between M20-relay CN92-EXCB CN10EX for proper connection and correct as necessary. 4. Check the connector of M20 for proper drive coupling and correct as necessary. 5. Check the connector between PS46-EXCB CN8EX for proper connection and correct as necessary. 6. Check the connector between EXCB CN2EX-BASEB CN12E for proper connection and correct as necessary. 7. Check CPUB for proper installation and correct as necessary. 8. PS46 I/O check, sensor check • Control signal: EXCB CN8EX-6 (ON) • Location of electrical component: 9-X 9. M20 load check • Check code: 44 • Multi code: 1 • Control signal: EXCB CN10EX-12 to 15 • Location of electrical component: 11-P 10. Replace M20. 11. Replace EXCB. 12. Replace CPUB. 13. Replace BASEB.

• Code: C2253, C2254
• Description: • C2253: PC motor failure to turn • C2254: PC motor turning at abnormal timing
  • C2253: The control circuit detects motor failure to turn while the motor is turning. • C2254: The control circuit detects motor turning while the motor remains stationary.
• Causes: • PC motor (M2) • CPU board (CPUB) • Base board (BASEB)
• Troubleshooting Guides: 1. Check the connector between M2-BASEB CN19E for proper connection and correct as necessary. 2. Check the connector of M2 for proper drive coupling and correct as necessary. 3. Check CPUB for proper installation and correct as necessary. 4. M2 load check • Check code: 41 • Multi code: 1, 4, 5 • Control signal: BASEB CN19EB-1 to 5 • Location of electrical component: 2-C 5. Replace M2. 6. Replace CPUB. 7. Replace BASEB.

• Code: C2255, C2256
• Description: • C2255: Developing motor failure to turn • C2256: Developing motor turning at abnormal timing
  • C2255: The control circuit detects motor failure to turn while the motor is turning. • C2256: The control circuit detects motor turning while the motor remains stationary.
• Causes: • Developing motor (M21) • CPU board (CPUB) • Base board (BASEB)
• Troubleshooting Guides: 1. Check the connector between M21-BASEB CN19E for proper connection and correct as necessary. 2. Check the connector of M21 for proper drive coupling and correct as necessary. 3. Check CPUB for proper installation and correct as necessary. 4. M21 load check • Check code: 50 • Multi code: 1, 4, 5 • Control signal: BASEB CN19EB-6 to 10 • Location of electrical component: 2-C 5. Replace M21. 6. Replace CPUB. 7. Replace BASEB.

• Code: C2355
• Description: Transfer belt cleaner cooling fan failure to turn
  The fan lock signal remains Low for a predetermined continuous period of time while the fan is turning.
• Causes: • Transfer belt cleaner cooling fan (FM2) • Expansion control board (EXCB) • CPU board (CPUB) • Base board (BASEB)
• Troubleshooting Guides: 1. Check the connector between FM2-relay CN115-EXCB CN10EX for proper connection and correct as necessary. 2. Check the fan for possible overload and correct as necessary. 3. Check the connector between EXCB CN2EX-BASEB CN12E for proper connection and correct as necessary. 4. Check CPUB for proper installation and correct as necessary. 5. FM2 load check • Check code: 42 • Multi code: 13, 14 • Control signal: EXCB CN10EX-9 (REM), EXCB CN10EX-11 (LOCK) • Location of electrical component: 11-P 6. Replace FM2. 7. Replace EXCB. 8. Replace CPUB. 9. Replace BASEB.

• Code: C2411 … C2414
• Description: • C2411: Developing unit/C new article release • C2412: Developing unit/M new article release • C2413: Developing unit/Y new article release • C2414: Developing unit/K new article release
  The status with the new unit is not cleared after the new developing unit is set.
• Causes: • Developing unit/C,M,Y,K • Expansion control board (EXCB) • CPU board (CPUB) • Base board (BASEB)
• Troubleshooting Guides: 1. Reinstall the developing unit. 2. Check the connector between the developing unit/C-relay CN251-relay CN248-EXCB CN6EX for proper connection and correct as necessary. (C2411) 3. Check the connector between the developing unit/M-relay CN250-relay CN248-EXCB CN6EX for proper connection and correct as necessary. (C2412) 4. Check the connector between the developing unit/Y-relay CN249-relay CN248-EXCB CN6EX for proper connection and correct as necessary. (C2413) 5. Check the connector between the developing unit/K-relay CN252-relay CN25-EXCB CN4EX for proper connection and correct as necessary. (C2414) 6. Check the connector between EXCB CN1EX-BASEB CN11E for proper connection and correct as necessary. 7. Check the connector between EXCB CN2EX-BASEB CN12E for proper connection and correct as necessary. 8. Check CPUB for proper installation and correct as necessary. 9. Replace the corresponding developing unit. 10. Replace EXCB. 11. Replace CPUB. 12. Replace BASEB.

• Code: C2551, C2553, C2555
• Description: • C2551: Abnormally low toner density detected cyan TCR sensor • C2553: Abnormally low toner density detected magenta TCR sensor • C2555: Abnormally low toner density detected yellow TCR sensor
  When sampling data is determined in TC ratio calculation control, TCR sensor output is higher than a predetermined value for a predetermined number of times in a row even though there is toner in the sub hopper.
• Causes: • Developing unit/C,M,Y • Toner cartridge/C,M,Y • PH unit • Toner empty sensor/Y (PS34) • Toner empty sensor/M (PS33) • Toner empty sensor/C (PS32) • Toner cartridge motor/YM (M10) • Toner cartridge motor/CK (M25) • Toner supply motor/Y (M9) • Toner supply motor/M (M8) • Toner supply motor/C (M7) • Expansion control board (EXCB) • CPU board (CPUB) • Base board (BASEB)
• Troubleshooting Guides: 1. Perform image troubleshooting procedure if image density is low. 2. Reinstall the developing unit. 3. Reinstall the toner cartridge. 4. Check the connector between the developing unit/C-relay CN251-relay CN248-EXCB CN6EX for proper connection and correct as necessary. (C2551) 5. Check the connector between the developing unit/M-relay CN250-relay CN248-EXCB CN6EX for proper connection and correct as necessary. (C2553) 6. Check the connector between the developing unit/Y-relay CN249-relay CN248-EXCB CN6EX for proper connection and correct as necessary. (C2555) 7. Check the connector between EXCB CN1EX-BASEB CN11E for proper connection and correct as necessary. 8. Check the connector between EXCB CN2EX-BASEB CN12E for proper connection and correct as necessary. 9. Check CPUB for proper installation and correct as necessary. 10. M10, M25 operation check • Control signal: EXCB CN11EX-5 to 8 (M10), EXCB CN11EX-1 to 4 (M25) • Location of electrical component: 4-P 11. M7, M8, M9 operation check • Control signal: EXCB CN11EX-17 to 20 (M7), EXCB CN11EX-13 to 16 (M8), EXCB CN11EX-9 to 12 (M9) • Location of electrical component: 5-P (M7), 4-P (M8, M9) 12. If the toner empty sensor and its surroundings inside the sub hopper are dirtied with toner, clean them. 13. Replace the corresponding developing unit. 14. Replace EXCB. 15. Replace CPUB. 16. Replace BASEB.

• Code: C2552, C2554
• Description: • C2552: Abnormally high toner density detected cyan TCR sensor • C2554: Abnormally high toner density detected magenta TCR sensor
  The TC ratio of the toner determined by the toner replenishment control is detected to be the predetermined value or over for consecutive times.
• Causes: • Developing unit/C,M,Y,K • Toner cartridge/C,M,Y,K • Expansion control board (EXCB) • CPU board (CPUB) • Base board (BASEB)
• Troubleshooting Guides: 1. Reinstall the developing unit. 2. Reinstall the toner cartridge. 3. Check the connector between the developing unit/C-relay CN251-relay CN248-EXCB CN6EX for proper connection and correct as necessary. (C2552) 4. Check the connector between the developing unit/M-relay CN250-relay CN248-EXCB CN6EX for proper connection and correct as necessary. (C2554) 5. Check the connector between the developing unit/Y-relay CN249-relay CN248-EXCB CN6EX for proper connection and correct as necessary. (C2556) 6. Check the connector between the developing unit/K-relay CN252-relay CN25-EXCB CN4EX for proper connection and correct as necessary. (C2558) 7. Check the connector between EXCB CN1EX-BASEB CN11E for proper connection and correct as necessary. 8. Check the connector between EXCB CN2EX-BASEB CN12E for proper connection and correct as necessary. 9. Check CPUB for proper installation and correct as necessary. 10. Replace the corresponding developing unit. 11. Replace EXCB. 12. Replace CPUB. 13. Replace BASEB.

• Code: C2556, C2558
• Description: • C2556: Abnormally high toner density detected yellow TCR sensor • C2558: Abnormally high toner density detected black TCR sensor
  The TC ratio of the toner determined by the toner replenishment control is detected to be the predetermined value or over for consecutive times.
• Causes: • Developing unit/C,M,Y,K • Toner cartridge/C,M,Y,K • Expansion control board (EXCB) • CPU board (CPUB) • Base board (BASEB)
• Troubleshooting Guides: 1. Reinstall the developing unit. 2. Reinstall the toner cartridge. 3. Check the connector between the developing unit/C-relay CN251-relay CN248-EXCB CN6EX for proper connection and correct as necessary. (C2552) 4. Check the connector between the developing unit/M-relay CN250-relay CN248-EXCB CN6EX for proper connection and correct as necessary. (C2554) 5. Check the connector between the developing unit/Y-relay CN249-relay CN248-EXCB CN6EX for proper connection and correct as necessary. (C2556) 6. Check the connector between the developing unit/K-relay CN252-relay CN25-EXCB CN4EX for proper connection and correct as necessary. (C2558) 7. Check the connector between EXCB CN1EX-BASEB CN11E for proper connection and correct as necessary. 8. Check the connector between EXCB CN2EX-BASEB CN12E for proper connection and correct as necessary. 9. Check CPUB for proper installation and correct as necessary. 10. Replace the corresponding developing unit. 11. Replace EXCB. 12. Replace CPUB. 13. Replace BASEB.

• Code: C2557
• Description: Abnormally low toner density detected black TCR sensor.
  When sampling data is determined in TC ratio calculation control, TCR sensor output is higher than a predetermined value for a predetermined number of times in a row even though there is toner in the sub hopper.
• Causes: • Developing unit/K • Toner cartridge/K • PH unit • Toner empty sensor/K (PS31) • Toner cartridge motor/CK (M25) • Toner supply motor/K (M6) • Expansion control board (EXCB) • CPU board (CPUB) • Base board (BASEB)
• Troubleshooting Guides: 1. Perform image troubleshooting procedure if image density is low. 2. Reinstall the developing unit/K. 3. Reinstall the toner cartridge/K. 4. Check the connector between the developing unit/K-relay CN252-relay CN25-EXCB CN4EX for proper connection and correct as necessary. 5. Check the connector between EXCB CN1EX-BASEB CN11E for proper connection and correct as necessary. 6. Check the connector between EXCB CN2EX-BASEB CN12E for proper connection and correct as necessary. 7. Check CPUB for proper installation and correct as necessary. 8. M25 operation check • Control signal: EXCB CN11EX-1 to 4 • Location of electrical component: 4-P 9. M6 operation check • Control signal: EXCB CN10EX-16 to 19 • Location of electrical component: 11-P 10. If the toner empty sensor and its surroundings inside the sub hopper are dirtied with toner, clean them. 11. Replace the developing unit/K. 12. Replace EXCB. 13. Replace CPUB. 14. Replace BASEB.

• Code: C2559, C255A, C255B
• Description: • C2559: Cyan TCR sensor adjustment failure • C255A: Magenta TCR sensor adjustment failure • C255B: Yellow TCR sensor adjustment failure
  TCR sensor automatic adjustment does not function properly, failing to adjust to an appropriate value.
• Causes: • Toner cartridge motor/YM (M10) • Toner cartridge motor/CK (M25) • Toner supply motor/Y (M9) • Toner supply motor/M (M8) • Toner supply motor/C (M7) • Expansion control board (EXCB) • CPU board (CPUB) • Base board (BASEB)
• Troubleshooting Guides: 1. Reinstall the developing unit. 2. Check the connector between the developing unit/C-relay CN251-relay CN248-EXCB CN6EX for proper connection and correct as necessary. (C2559) 3. Check the connector between the developing unit/M-relay CN250-relay CN248-EXCB CN6EX for proper connection and correct as necessary. (C255A) 4. Check the connector between the developing unit/Y-relay CN249-relay CN248-EXCB CN6EX for proper connection and correct as necessary. (C255B) 5. Check the connector between EXCB CN1EX-BASEB CN11E for proper connection and correct as necessary. 6. Check the connector between EXCB CN2EX-BASEB CN12E for proper connection and correct as necessary. 7. Check CPUB for proper installation and correct as necessary. 8. M10, M25 operation check • Control signal: EXCB CN11EX-5 to 8 (M10), EXCB CN11EX-1 to 4 (M25) • Location of electrical component: 4-P 9. M7, M8, M9 operation check • Control signal: EXCB CN11EX-17 to 20 (M7), EXCB CN11EX-13 to 16 (M8), EXCB CN11EX-9 to 12 (M9) • Location of electrical component: 5-P (M7), 4-P (M8, M9) 10. Replace the corresponding developing unit. 11. Replace EXCB. 12. Replace CPUB. 13. Replace BASEB.

• Code: C255C
• Description: Black TCR sensor adjustment failure
  TCR sensor automatic adjustment does not function properly, failing to adjust to an appropriate value.
• Causes: • Developing unit/K • Toner cartridge motor/CK (M25) • Toner supply motor/K (M6) • Expansion control board (EXCB) • CPU board (CPUB) • Base board (BASEB)
• Troubleshooting Guides: 1. Reinstall the developing unit/K. 2. Check the connector between the developing unit/K-relay CN252-relay CN25-EXCB CN4EX for proper connection and correct as necessary. 3. Check the connector between EXCB CN1EX-BASEB CN11E for proper connection and correct as necessary. 4. Check the connector between EXCB CN2EX-BASEB CN12E for proper connection and correct as necessary. 5. Check CPUB for proper installation and correct as necessary. 6. M25 operation check • Control signal: EXCB CN11EX-1 to 4 • Location of electrical component: 4-P 7. M6 operation check • Control signal: EXCB CN10EX-16 to 19 • Location of electrical component: 11-P 8. Replace the developing unit/K. 9. Replace EXCB. 10. Replace CPUB. 11. Replace BASEB.

• Code: C2561 … C2564
• Description: • C2561: Cyan TCR sensor failure • C2562: Magenta TCR sensor failure • C2563: Yellow TCR sensor failure • C2564: Black TCR sensor failure
  • Alarm signals for each TCR sensor is detected more than the predetermined number of times. • This detection is used for detecting disconnection of TCR sensor connector.
• Causes: • Developing unit/C,M,Y,K • Expansion control board (EXCB) • CPU board (CPUB) • Base board (BASEB)
• Troubleshooting Guides: 1. Reinstall the developing unit. 2. Check the connector between the developing unit/C-relay CN251-relay CN248-EXCB CN6EX for proper connection and correct as necessary. (C2561) 3. Check the connector between the developing unit/M-relay CN250-relay CN248-EXCB CN6EX for proper connection and correct as necessary. (C2562) 4. Check the connector between the developing unit/Y-relay CN249-relay CN248-EXCB CN6EX for proper connection and correct as necessary. (C2563) 5. Check the connector between the developing unit/K-relay CN252-relay CN25-EXCB CN4EX for proper connection and correct as necessary. (C2564) 6. Check the connector between EXCB CN1EX-BASEB CN11E for proper connection and correct as necessary. 7. Check the connector between EXCB CN2EX-BASEB CN12E for proper connection and correct as necessary. 8. Check CPUB for proper installation and correct as necessary. 9. Replace the corresponding developing unit. 10. Replace EXCB. 11. Replace CPUB. 12. Replace BASEB.

• Code: C2650
• Description: Main backup media access error
  • The re-written data, which has been read out, checked and founded as error, is read out again and found as error. • The error was found when reading out the counter value. • The main body detects that the backup board is not mounted.
• Causes: • Backup board (ERB) • CPU board (CPUB) • Base board (BASEB)
• Troubleshooting Guides: 1. Check the connector between ERB CN1-BASEB CN27E for proper connection and correct as necessary. 2. Check CPUB for proper installation and correct as necessary. 3. Replace CPUB. 4. Replace BASEB. 5. Replace ERB. 1. Replace the current ERB with a new one. 2. Replace the following components with new ones. When the transfer belt unit and the fusing unit have been replaced with new ones, perform [Service Mode] -> [Counter] -> [Life] -> [New Release]. When the transfer roller has been replaced with a new one, perform the counter reset in [Service Mode] -> [Counter] -> [Life]. • Developing unit • Drum unit • Toner cartridge • Transfer belt unit • Fusing unit • Transfer roller • Feed roller, pick-up roller, separation roller (including options) 3. Turn ON the main power switch and check to see that warm-up is started. Make sure that trouble codes other than C2650 or improper IU/TC placement is not detected. 4. Make the specified readjustments. 6. If the above actions do not solve the problem, contact KM.

• Code: C2A11 … C2A14
• Description: • C2A11: Drum unit/C new release failure • C2A12: Drum unit/M new release failure • C2A13: Drum unit/Y new release failure • C2A14: Drum unit/K new release failure
  The status with the new unit is not cleared after the new drum unit is set.
• Causes: • Drum unit/C,M,Y,K • Expansion control board (EXCB) • CPU board (CPUB) • Base board (BASEB)
• Troubleshooting Guides: 1. Clean the connection between the drum unit and the main body if dirty. 2. Reinstall the drum unit. 3. Check the connector between the drum unit/C-relay CN47-relay CN149-EXCB CN4EX for proper connection and correct as necessary. (C2A11) 4. Check the connector between the drum unit/M-relay CN46-relay CN149-EXCB CN4EX for proper connection and correct as necessary. (C2A12) 5. Check the connector between the drum unit/Y-relay CN45-relay CN149-EXCB CN4EX for proper connection and correct as necessary. (C2A13) 6. Check the connector between the drum unit/K-relay CN48-relay CN149-EXCB CN4EX for proper connection and correct as necessary. (C2A14) 7. Check the connector between EXCB CN1EX-BASEB CN11E for proper connection and correct as necessary. 8. Check the connector between EXCB CN2EX-BASEB CN12E for proper connection and correct as necessary. 9. Check CPUB for proper installation and correct as necessary. 10. Replace the corresponding drum unit. 11. Replace EXCB. 12. Replace CPUB. 13. Replace BASEB.

• Code: C2A21 … C2A24
• Description: • C2A21: Toner cartridge/C new release failure • C2A22: Toner cartridge/M new release failure • C2A23: Toner cartridge/Y new release failure • C2A24: Toner cartridge/K new release failure
  The status with the new unit is not cleared after the new toner cartridge is set.
• Causes: • Toner cartridge/C,M,Y,K • Expansion control board (EXCB) • CPU board (CPUB) • Base board (BASEB)
• Troubleshooting Guides: 1. Clean the connection between the toner cartridge and the main body if dirty. 2. Check the connector between the toner cartridge/C-relay CN82-relay CN79-EXCB CN5EX for proper connection and correct as necessary. (C2A21) 3. Check the connector between the toner cartridge/M-relay CN81-relay CN79-EXCB CN5EX for proper connection and correct as necessary. (C2A22) 4. Check the connector between the toner cartridge/Y-relay CN80-relay CN79-EXCB CN5EX for proper connection and correct as necessary. (C2A23) 5. Check the connector between the toner cartridge/K-relay CN83-relay CN79-EXCB CN5EX for proper connection and correct as necessary. (C2A24) 6. Check the connector between EXCB CN1EX-BASEB CN11E for proper connection and correct as necessary. 7. Check the connector between EXCB CN2EX-BASEB CN12E for proper connection and correct as necessary. 8. Check CPUB for proper installation and correct as necessary. 9. Reinstall the toner cartridge. 10. Check the harness for proper connection and correct as necessary. 11. Replace the corresponding toner cartridge. 12. Replace EXCB. 13. Replace CPUB. 14. Replace BASEB.

• Code: C3101, C3103
• Description: • C3101: Pressure roller pressure failure • C3103: Pressure roller release failure
  • C3101: The fusing pressure home sensor (PS38) is not turned ON (blocked) even after the lapse of a predetermined period of time after the fusing pressure motor (M11) has started rotating during pressure by the pressure roller. • C3103: The fusing pressure home sensor (PS38) is not turned OFF (unblocked) even after the lapse of a predetermined period of time after the fusing pressure motor (M11) has started rotating during retraction of the pressure roller.
• Causes: • Fusing unit • Fusing pressure motor (M11) • Fusing pressure home sensor (PS38) • Expansion control board (EXCB) • CPU board (CPUB) • Base board (BASEB)
• Troubleshooting Guides: 1. Check the connector between M11-relay CN112-EXCB CN14EX for proper connection and correct as necessary. 2. Check the connector between the fusing unit-relay CN95, CN96-BASEB CN4E for proper connection and correct as necessary. 3. Check the connector between EXCB CN2EX-BASEB CN12E for proper connection and correct as necessary. 4. Check CPUB for proper installation and correct as necessary. 5. PS38 I/O check, sensor check • Control signal: BASEB CN4E-3 (ON) • Location of electrical component: 7-C 6. M11 operation check • Check code: 45 • Multi code: 7, 8, 9 • Control signal: EXCB CN14EX-11 to 14 • Location of electrical component: 6-P 7. Replace M11. 8. Replace the fusing unit. 9. Replace EXCB. 10. Replace CPUB. 11. Replace BASEB.

• Code: C3201, C3202
• Description: • C3201: Fusing motor failure to turn • C3202: Fusing motor turning at abnormal timing
  • C3201: The control circuit detects motor failure to turn while the motor is turning. • C3202: The control circuit detects motor turning while the motor remains stationary.
• Causes: • Fusing motor (M3) • CPU board (CPUB) • Base board (BASEB)
• Troubleshooting Guides: 1. Check the connector between M3-BASEB CN19E for proper connection and correct as necessary. 2. Check the loading status of the fusing unit drive, and correct the error as necessary. 3. Check CPUB for proper installation and correct as necessary. 4. M3 load check • Check code: 45 • Multi code: 1, 4, 5, 6 • Control signal: BASEB CN19EA-6 to 10 • Location of electrical component: 1-C 5. Replace M3. 6. Replace CPUB. 7. Replace BASEB.

• Code: C3302
• Description: Paper cooling fan failure to turn
  The fan lock signal remains Low for a predetermined continuous period of time while the fan is turning.
• Causes: • Paper cooling fan (FM8) • Expansion control board (EXCB) • CPU board (CPUB) • Base board (BASEB)
• Troubleshooting Guides: 1. Check the connector between FM8-relay CN27-EXCB CN14EX for proper connection and correct as necessary. 2. Check the fan for possible overload and correct as necessary. 3. Check the connector between EXCB CN2EX-BASEB CN12E for proper connection and correct as necessary. 4. Check CPUB for proper installation and correct as necessary. 5. FM8 load check • Check code: 42 • Multi code: 9, 10 • Control signal: EXCB CN14EX-1 (REM), EXCB CN14EX-3 (LOCK) • Location of electrical component: 5-P 6. Replace FM8. 7. Replace EXCB. 8. Replace CPUB. 9. Replace BASEB.

• Code: C3425
• Description: Fusing warm-up trouble
  • Detected temperature of the heating roller temperature sensor (TEMS) does not go up a given range of temperature even after a lapse of given period of time at warm up. • The temperature detected by the heating roller temperature sensor (TEMS) does not shift from the prestandby state even after the lapse of a predetermined period of time after the completion of warm-up.
• Causes: • Fusing unit • Heating roller temperature sensor (TEMS) • DC power supply (DCPU) • CPU board (CPUB) • Base board (BASEB)
• Troubleshooting Guides: 1. Check the fusing unit for correct installation (whether it is secured in position). 2. Check the open/close operation of the right door. 3. Check the connector between the fusing unit-relay CN95, CN96-BASEB CN4E for proper connection and correct as necessary. 4. Check the connector between BASEB CN2E-DCPU CN9 for proper connection and correct as necessary. 5. Check CPUB for proper installation and correct as necessary. 6. Replace the fusing unit. 7. Replace CPUB. 8. Replace BASEB. 9. Replace DCPU.

• Code: C3722, C3725, C3726
• Description: • C3722: Fusing abnormally high temperature detection (Edge of the heating roller) • C3725: Fusing abnormally high temperature detection (Main of the heating roller) • C3726: Fusing abnormally high temperature detection (Center of the heating roller)
  • C3722: Detected temperature of the heating roller thermistor/Edg (TH1) goes beyond a given temperature for a given period of time consecutively. • C3725: Detected temperature of the heating roller temperature sensor (TEMS) goes beyond a given temperature for a given period of time consecutively. • C3726: Detected temperature of the heating roller thermistor/Ctr (TH2) goes beyond a given temperature for a given period of time consecutively.
• Causes: • Fusing unit • C3722: Heating roller thermistor/Edg (TH1) • C3725: Heating roller temperature sensor (TEMS) • C3726: Heating roller thermistor/Ctr (TH2) • CPU board (CPUB) • Base board (BASEB)
• Troubleshooting Guides: 1. Check the fusing unit for correct installation (whether it is secured in position). 2. Check the open/close operation of the right door. 3. Check the connector between the fusing unit-relay CN95-BASEB CN4E for proper connection and correct as necessary. 4. Check CPUB for proper installation and correct as necessary. 5. Replace the fusing unit. 6. Replace CPUB. 7. Replace BASEB.

• Code: C3736, C3739
• Description: • C3736: Fusing abnormally high temperature detection hard protector (Middle of the heating roller) • C3739: Fusing abnormally high temperature detection hard protector (Edge of the heating roller)
  • C3736: An abnormally high temperature is detected on the hard protector circuit (middle of the heating roller). • C3739: An abnormally high temperature is detected on the hard protector circuit (edge of the heating roller).
• Causes: • Fusing unit • C3736: Heating roller thermistor/Ctr (TH2) • C3739: Heating roller thermistor/Edg (TH1) • CPU board (CPUB) • Base board (BASEB)
• Troubleshooting Guides: 1. Check the fusing unit for correct installation (whether it is secured in position). 2. Check the open/close operation of the right door. 3. Check the connector between the fusing unit-relay CN95-BASEB CN4E for proper connection and correct as necessary. 4. Check CPUB for proper installation and correct as necessary. 5. Replace the fusing unit. 6. Replace CPUB. 7. Replace BASEB.

• Code: C3825, C3826
• Description: • C3825: Fusing abnormally low temperature detection (Main of the heating roller) • C3826: Fusing abnormally low temperature detection (Center of the heating roller)
  • C3825: The heating roller temperature sensor (TEMS) continues to detect a temperature lower than a predetermined one for a predetermined period of time. • C3826: The heating roller thermistor/Ctr (TH2) continues to detect a temperature lower than a predetermined one for a predetermined period of time.
• Causes: • Fusing unit • C3825: Heating roller temperature sensor (TEMS) • C3826: Heating roller thermistor/Ctr (TH2) • CPU board (CPUB) • Base board (BASEB)
• Troubleshooting Guides: 1. Check the fusing unit for correct installation (whether it is secured in position). 2. Check the open/close operation of the right door. 3. Check the connector between the fusing unit-relay CN95-BASEB CN4E for proper connection and correct as necessary. 4. Check CPUB for proper installation and correct as necessary. 5. Replace the fusing unit. 6. Replace CPUB. 7. Replace BASEB.

• Code: C3922, C3925, C3926
• Description: • C3922: Fusing sensor wire breaks detection (Edge of the heating roller) • C3925: Fusing sensor wire breaks detection (Main of the heating roller) • C3926: Fusing sensor wire breaks detection (Center of the heating roller)
  • C3922: The maximum value and minimum value of detected temperature of the heating roller thermistor/Edg (TH1) is compared after a lapse of given time from starting of warm up and the gap between the value of maximum and minimum is below a given temperature. • C3925: The maximum value and minimum value of detected temperature of the heating roller temperature sensor (TEMS2) is compared after a lapse of given time from starting of warm up and the gap between the value of maximum and minimum is below a given temperature. • C3926: The maximum value and minimum value of detected temperature of the heating roller thermistor/Ctr (TH2) is compared after a lapse of given time from starting of warm up and the gap between the value of maximum and minimum is below a given temperature.
• Causes: • Fusing unit • C3922: Heating roller thermistor/Edg (TH1) • C3925: Heating roller temperature sensor (TEMS) • C3926: Heating roller thermistor/Ctr (TH2) • CPU board (CPUB) • Base board (BASEB)
• Troubleshooting Guides: 1. Check the fusing unit for correct installation (whether it is secured in position). 2. Check the open/close operation of the right door. 3. Check the connector between the fusing unit-relay CN95-BASEB CN4E for proper connection and correct as necessary. 4. Check CPUB for proper installation and correct as necessary. 5. Replace the fusing unit. 6. Replace CPUB. 7. Replace BASEB.

• Code: C392B
• Description: Fusing sensor wire breaks detection (difference of temperature)
  The difference between the temperature corrected by the heating roller thermistor/Edg (TH1) and the temperature detected by the heating roller thermistor/Ctr (TH2) exceeds a predetermined value.
• Causes: • Fusing unit • Heating roller thermistor/Edg (TH1) • Heating roller thermistor/Ctr (TH2) • CPU board (CPUB) • Base board (BASEB)
• Troubleshooting Guides: 1. Check the fusing unit for correct installation (whether it is secured in position). 2. Check the open/close operation of the right door. 3. Check the connector between the fusing unit-relay CN95-BASEB CN4E for proper connection and correct as necessary. 4. Check CPUB for proper installation and correct as necessary. 5. Replace the fusing unit. 6. Replace CPUB. 7. Replace BASEB.

• Code: C40A2 … C40A6
• Description: • C40A2: Mechanical controller PF communication data error • C40A3: Mechanical controller PF transmission timeout • C40A4: Mechanical controller PF communication pulse error • C40A5: QSPI communication clock switching error • C40A6: Mechanical controller ASIC communication error
  A CPU communication error is detected.
• Causes: • CPU board (CPUB) • Base board (BASEB)
• Troubleshooting Guides: 1. Turn OFF the main power switch and unplug the power cord. Connect the power cord after 15 sec. or more, and turn ON the main power switch. 2. Check CPUB for proper installation and correct as necessary. 3. Rewrite the firmware. 4. Replace CPUB. 5. BASEB F8E conduction check 6. Replace BASEB.

• Code: C40C3, C40C5
• Description: • C40C3: CTL PF transmission timeout 1 • C40C5: CTL PF transmission timeout 2
  A CPU communication error is detected.
• Causes: • CPU board (CPUB) • Base board (BASEB)
• Troubleshooting Guides: 1. Turn OFF the main power switch and unplug the power cord. Connect the power cord after 15 sec. or more, and turn ON the main power switch. 2. Check CPUB for proper installation and correct as necessary. 3. Rewrite the firmware. 4. Replace CPUB. 5. BASEB F8E conduction check 6. Replace BASEB.

• Code: C4101
• Description: Polygon motor rotation trouble
  • The polygon motor fails to turn stably even after the lapse of a given period of time after activating and changing rotation speed the polygon motor. • Motor lock signal detects HIGH for a given period time consecutively during the polygon motor is rotating.
• Causes: • PH unit • Expansion control board (EXCB) • CPU board (CPUB) • Base board (BASEB)
• Troubleshooting Guides: 1. Check the connector between the PH unit-relay CN306-EXCB CN10EX for proper connection and correct as necessary. 2. Check the connector between EXCB CN2EX-BASEB CN12E for proper connection and correct as necessary. 3. Check CPUB for proper installation and correct as necessary. 4. Replace the PH unit. 5. Replace EXCB. 6. Replace CPUB. 7. Replace BASEB.

• Code: C4501
• Description: Laser malfunction
  • SOS signal is not detected even after the lapse of a given period of time after starting the laser output. • SOS signal is not detected for a given period of time during printing or IDC sensor adjustment.
• Causes: • PH unit • CPU board (CPUB) • Base board (BASEB)
• Troubleshooting Guides: 1. Check the connector between the PH unit-relay CN307-BASEB CN17E for proper connection and correct as necessary. 2. Check CPUB for proper installation and correct as necessary. 3. Replace the PH unit. 4. Replace CPUB. 5. Replace BASEB.

• Code: C5102, C5103
• Description: • C5102: Transport motor failure to turn • C5103: Transport motor turning at abnormal timing
  • C5102: The control circuit detects motor failure to turn while the motor is turning. • C5103: The control circuit detects motor turning while the motor remains stationary.
• Causes: • Transport motor (M1) • CPU board (CPUB) • Base board (BASEB)
• Troubleshooting Guides: 1. Check the connector between M1-BASEB CN19E for proper connection and correct as necessary. 2. Check the loading status of the main drive, and correct the error as necessary. 3. Check CPUB for proper installation and correct as necessary. 4. M1 load check • Check code: 40 • Multi code: 1, 4, 5 • Control signal: BASEB CN19EA-1 to 5 • Location of electrical component: 1-C 5. Replace M1. 6. Replace CPUB. 7. Replace BASEB.

• Code: C5351
• Description: PH/power supply cooling fan failure to turn
  The fan lock signal remains Low for a predetermined continuous period of time while the fan is turning.
• Causes: • PH/power supply cooling fan (FM1) • Expansion control board (EXCB) • CPU board (CPUB) • Base board (BASEB)
• Troubleshooting Guides: 1. Check the connector between FM1-relay CN26-EXCB CN10EX for proper connection and correct as necessary. 2. Check the fan for possible overload and correct as necessary. 3. Check the connector between EXCB CN2EX-BASEB CN12E for proper connection and correct as necessary. 4. Check CPUB for proper installation and correct as necessary. 5. FM1 load check • Check code: 42 • Multi code: 1 • Control signal: EXCB CN10EX-6 (REM), EXCB CN10EX-8 (LOCK) • Location of electrical component: 10-P 6. Replace FM1. 7. Replace EXCB. 8. Replace CPUB. 9. Replace BASEB.

• Code: C5355
• Description: Toner cartridge cooling fan failure to turn
  The fan lock signal remains Low for a predetermined continuous period of time while the fan is turning.
• Causes: • Toner cartridge cooling fan (FM4) • Expansion control board (EXCB) • CPU board (CPUB) • Base board (BASEB)
• Troubleshooting Guides: 1. Check the connector between FM4-relay CN78-EXCB CN14EX for proper connection and correct as necessary. 2. Check the fan for possible overload and correct as necessary. 3. Check the connector between EXCB CN2EX-BASEB CN12E for proper connection and correct as necessary. 4. Check CPUB for proper installation and correct as necessary. 5. FM4 load check • Check code: 42 • Multi code: 2, 3 • Control signal: EXCB CN14EX-4 (REM), EXCB CN14EX-6 (LOCK) • Location of electrical component: 5-P 6. Replace FM4. 7. Replace EXCB. 8. Replace CPUB. 9. Replace BASEB.

• Code: C5360
• Description: Clean unit fan failure to turn (When CU-102 is installed)
  The fan lock signal remains Low for a predetermined continuous period of time while the fan is turning.
• Causes: • Exhaust fan/1 (FM14) • Exhaust fan/2 (FM15) • Clean unit drive board (CUDB) • CPU board (CPUB) • Base board (BASEB)
• Troubleshooting Guides: 1. Check the connector between CUDB CN1-relay CN28D-BASEB CN28E for proper connection and correct as necessary. 2. Check the connector between FM14-relay CN165-CUDB CN2, FM15-relay CN182-CUDB CN3 for proper connection and correct as necessary. 3. Check the fan for possible overload and correct as necessary. 4. Check CPUB for proper installation and correct as necessary. 5. FM14 load check • Check code: 42 • Multi code: 9, 10 • Control signal: CUDB CN2-1 (REM), CUDB CN2-3 (LOCK) • Location of electrical component: 27-L 6. FM15 load check • Check code: 42 • Multi code: 9, 10 • Control signal: CUDB CN3-1 (REM), CUDB CN3-3 (LOCK) • Location of electrical component: 28-L 7. Replace the defective fan. (FM14 / FM15) 8. Replace CUDB. 9. Replace CPUB. 10. Replace BASEB.

• Code: C5370
• Description: Rear side cooling fan failure to turn
  The fan lock signal remains Low for a predetermined continuous period of time while the fan is turning.
• Causes: • Rear side cooling fan (FM3) • CPU board (CPUB) • Base board (BASEB)
• Troubleshooting Guides: 1. Check the connector between FM3-relay CN193-BASEB CN17 for proper connection and correct as necessary. 2. Check the fan for possible overload and correct as necessary. 3. Check CPUB for proper installation and correct as necessary. 4. FM3 operation check • Control signal: BASEB CN17-3 (LOCK), BASEB CN17-4 (PWM) • Location of electrical component: 24-D to E 5. Replace FM3. 6. Replace CPUB. 7. BASEB F1 conduction check 8. Replace BASEB.

• Code: C5372
• Description: MFP control board CPU temperature failure
  Temperature failure of CPU on the CPU board was detected.
• Causes: CPU board (CPUB)
• Troubleshooting Guides: 1. Reboot the machine. 2. Check for clogging in the ventilation path between the CPUB and the PH/power supply cooling fan, and correct as necessary. 3. Replace CPUB.

• Code: C5501
• Description: AC signal abnormality
  The zero cross signal is not input during fusing phase control.
• Causes: • Fusing unit • DC power supply (DCPU) • CPU board (CPUB) • Base board (BASEB)
• Troubleshooting Guides: 1. Check the fusing unit for correct installation (whether it is secured in position). 2. Check the connector between the fusing unit-relay CN95-BASEB CN4E for proper connection and correct as necessary. 3. Check the connector between DCPU CN9-BASEB CN2E for proper connection and correct as necessary. 4. Check CPUB for proper installation and correct as necessary. 5. Replace the fusing unit. 6. Replace CPUB. 7. Replace BASEB. 8. Replace DCPU.

• Code: C5601
• Description: Engine control malfunction
  Engine control malfunction is detected with port monitor control.
• Causes: • CPU board (CPUB) • Base board (BASEB)
• Troubleshooting Guides: Procedure 1. Check the connectors on BASEB for proper connection and correct as necessary. 2. Rewrite the firmware. 3. Replace CPUB. 4. Replace BASEB.

• Code: C5603
• Description: Expansion control board communication error
  Communication error is detected in expansion control board.
• Causes: • Expansion control board (EXCB) • CPU board (CPUB) • Base board (BASEB)
• Troubleshooting Guides: 1. Reboot the machine. 2. Check the connector between EXCB CN1EX-BASEB CN11E for proper connection and correct as necessary. 3. Check the connector between EXCB CN2EX-BASEB CN12E for proper connection and correct as necessary. 4. Check CPUB for proper installation and correct as necessary. 5. Replace EXCB. 6. Replace CPUB. 7. Replace BASEB.

• Code: C5605, C5606
• Description: • C5605: Engine communication data error • C5606: Engine transmission timeout
  A communication error is detected between CPUs.
• Causes: • CPU board (CPUB) • Base board (BASEB)
• Troubleshooting Guides: 1. Turn OFF the main power switch and unplug the power cord. Connect the power cord after 15 sec. or more, and turn ON the main power switch. 2. Check CPUB for proper installation and correct as necessary. 3. Rewrite the firmware. 4. Replace CPUB. 5. Replace BASEB.

• Code: C5610
• Description: PH LD drive communication error
  LD drive write data and read data disagree with each other a predetermined number of consecutive times.
• Causes: • PH unit • CPU board (CPUB) • Base board (BASEB)
• Troubleshooting Guides: 1. Reboot the machine. 2. Check the connector between BASEB CN17E-relay CN307-PH unit for proper connection and correct as necessary. 3. Check CPUB for proper installation and correct as necessary. 4. Replace the PH unit. 5. Replace CPUB. 6. Replace BASEB.

• Code: C5620
• Description: Mechanical controller WDT error
  Communication error is detected in mechanical controller ASIC.
• Causes: • CPU board (CPUB) • Base board (BASEB)
• Troubleshooting Guides: 1. Turn OFF the main power switch and unplug the power cord. Connect the power cord after 15 sec. or more, and turn ON the main power switch. 2. Check CPUB for proper installation and correct as necessary. 3. Rewrite the firmware. 4. Replace CPUB. 5. Replace BASEB.

• Code: C6001
• Description: DF related configuration error 1
  Inconsistency in the configuration with the installed DF is detected on the main body.
• Causes: • DF control board (DFCB) • CPU board (CPUB) • Base board (BASEB)
• Troubleshooting Guides: 1. Check the type of the installed DF and replace it if it is a wrong one. 2. Check to see the [Service mode] -> [System 2] -> [ADF Settings] is correct. It corrects, when a model is different. 3. Check the connector between DFCB CN2-BASEB CN9E for proper connection and correct as necessary. 4. Check CPUB for proper installation and correct as necessary. 5. Replace DFCB. 6. Replace CPUB. 7. Replace BASEB.

• Code: C6002
• Description: DF related configuration error 2
  Inconsistency in the configuration with the installed DF is detected on the main body.
• Causes: • DF control board (DFCB) • CPU board (CPUB) • Base board (BASEB)
• Troubleshooting Guides: 1. Check the type of the installed DF and replace it if it is a wrong one. 2. Correct the harness connection between DFCB CN2-BASEB CN9E if faulty. 3. Check CPUB for proper installation and correct as necessary.

• Code: C6102, C6103
• Description: • C6102: Drive system home sensor malfunction • C6103: Slider over running
  C6102: • The scanner home sensor (PS201) is unable to detect the scanner located at its home position. • The scanner home sensor (PS201) is unable to detect a scanner even when the scanner motor (M201) has been driven to move the scanner over the maximum travelling distance. • The scanner home sensor (PS201) detects the scanner when the scanner has moved the maximum travelling distance from the position, at which it blocks the scanner home sensor (PS201).
  C6103: The scanner home sensor (PS201) detects the scanner at its home position during a period of time that begins with the time when a prescan command and a scan preparation command are executed and ends when a home return command is executed.
• Causes: • Scanner home sensor (PS201) • Scanner motor (M201) • Scanner drive board (SCDB) • CPU board (CPUB) • Base board (BASEB)
• Troubleshooting Guides: 1. Correct or change the scanner drive (pulley, gear, belt) if it is faulty. 2. Correct the scanner motor set screw if loose. 3. Adjust [Image Position: Leading Edge] and [Sub Scan Zoom Adj.]. 4. Check the connector between M201-SCDB CN4 for proper connection and correct as necessary. 5. Check the connector between PS201-SCDB CN6 for proper connection and correct as necessary. 6. Check the connector between SCDB CN2-BASEB CN6E for proper connection and correct as necessary. 7. Check CPUB for proper installation and correct as necessary. 8. PS201 I/O check, sensor check • Control signal: SCDB CN6-3 (ON) • Location of electrical component: 25-P 9. M201 operation check • Control signal: SCDB CN4-1 to 4 • Location of electrical component: 26-P 10. Replace SCDB. 11. Replace CPUB. 12. Replace BASEB.

• Code: C6104, C6105
• Description: • C6104: Back side cleaning home sensor abnormality (initial) (When DF-714 is installed) • C6105: Back side cleaning home sensor abnormality (normal) (When DF-714 is installed)
  C6104: • The CIS cleaning sensor (PS7) does not change from H to L even after the lapse of a given period of time after the home position detecting operation is started at the initial operation. • The CIS cleaning sensor (PS7) does not change from L to H even after the lapse of a given period of time after the home position detecting operation is started at the initial operation.
  C6105: At the time of operation other than the initial operation, the CIS cleaning sensor (PS7) error is detected.
• Causes: • CIS cleaning sensor (PS7) • CIS cleaning motor (M5) • DF control board (DFCB)
• Troubleshooting Guides: 1. Check if the opening and closing guide is firmly closed. 2. Check the connector between M5-DFCB J9 for proper connection and correct as necessary. 3. Check the connector of M5 for proper drive coupling and correct as necessary. 4. Check the connector between PS7-DFCB J13 for proper connection and correct as necessary. 5. PS7 I/O check, sensor check • Control signal: DFCB J13-3 (ON) • Location of electrical component: DF-714 1-G 6. M5 load check • Check code: 60 • Multi code: 65, 66, 67 • Control signal: DFCB J9-1 to 4 • Location of electrical component: DF-714 6-G 7. Replace M5. 8. Replace DFCB.

• Code: C6704
• Description: Image input time out
  Image data is not input from the scanner to the CPU board (CPUB).
• Causes: • CCD unit • CPU board (CPUB) • Base board (BASEB)
• Troubleshooting Guides: 1. Select [Service Mode] -> [State Confirmation] -> [Memory/Storage Adjustment] -> [Memory Bus Check] -> [Scanner -> Memory], and conduct the memory bus function. 2. Check the connector between CCDB CN2-BASEB CN6 for proper connection and correct as necessary. 3. Check CPUB for proper installation and correct as necessary. 4. Replace the CCD unit. 5. Replace CPUB. 6. Replace BASEB.

• Code: C6751
• Description: CCD clamp/gain adjustment failure
  • The adjustment value is 0 or 255 during a CCD clamp adjustment. • The peak value of the output data is 64 or less during a CCD gain adjustment.
• Causes: • LED exposure unit • CCD unit • CPU board (CPUB) • Base board (BASEB)
• Troubleshooting Guides: 1. Check the connector between CCDB CN2-BASEB CN6 for proper connection and correct as necessary. 2. Check CPUB for proper installation and correct as necessary. 3. Check for possible extraneous light and correct as necessary. 4. Clean the lens, mirrors, CCD surface, and shading sheet if dirty. 5. Correct reflective mirror of the scanner if faulty, or change scanner mirror. 6. Replace the CCD unit. 7. Replace CPUB. 8. Replace BASEB.

• Code: C6752
• Description: ASIC clock input error (front side)
  When starting the machine, verification on reading and writing the predetermined value for image processing ASIC on CCD board (CCDB) was conducted, and verification failure was detected.
• Causes: • CCD unit • CPU board (CPUB) • Base board (BASEB)
• Troubleshooting Guides: 1. Check the connector between CCDB CN2-BASEB CN6 for proper connection and correct as necessary. 2. Check CPUB for proper installation and correct as necessary. 3. Replace the CCD unit. 4. Replace CPUB. 5. Replace BASEB.

• Code: C6753
• Description: ASIC clock input error (back side) (When DF-714 is installed)
  When starting the machine, verification on reading and writing the predetermined value for CPU (image processing section) on CPU board (CPUB) was conducted, and verification failure was detected.
• Causes: • CPU board (CPUB) • Base board (BASEB)
• Troubleshooting Guides: 1. Check CPUB for proper installation and correct as necessary. 2. Replace CPUB. 3. Replace BASEB.

• Code: C6754, C6755
• Description: • C6754: CIS clamp adjustment failure (When DF-714 is installed) • C6755: CIS gain adjustment failure (When DF-714 is installed)
  • C6754: After the gain adjustment is performed at the start-up, the CIS clamp adjustment value is too high or too low. • C6755: After the gain adjustment is performed at the start-up, the peak value of the output data is lower than a given value.
• Causes: • CIS module (CIS) • CIS power supply (CISPU) • CPU board (CPUB) • Base board (BASEB)
• Troubleshooting Guides: 1. Check the connector between CIS J221-BASEB CN5 for proper connection and correct as necessary. 2. Check CPUB for proper installation and correct as necessary. 3. Correct the harness connection between CIS J222-CISPU J2 if faulty. 4. Check for possible extraneous light and correct as necessary. 5. Clean the back side reading glass and the shading sheet if dirty. 6. Replace CIS. 7. Replace CISPU. 8. Replace CPUB. 9. Replace BASEB.

• Code: C6756
• Description: CCD power-supply voltage malfunction.
  Power is not supplied to CCD after the lapse of a given period of time after the main power switch or power key is turned ON or the machine recovers from the sleep mode.
• Causes: • CCD unit • Scanner drive board (SCDB) • DC power supply (DCPU) • CPU board (CPUB) • Base board (BASEB)
• Troubleshooting Guides: 1. Correct the harness connection between CCDB CN1-SCDB CN5 if faulty. 2. Correct the harness connection between SCDB CN1-BASEB CN7E if faulty. 3. Correct the harness connection between BASEB CN1E, CN14E-DCPU CN4, CN5, CN6 if faulty. 4. Check CPUB for proper installation and correct as necessary. 5. Replace the CCD unit. 6. Replace SCDB. 7. Replace CPUB. 8. Replace BASEB. 9. Replace DCPU.

• Code: C6901, C6902, C6903
• Description: • C6901: DSC board mount failure 1 (When SC-509 is installed) • C6902: DSC board bus check NG1-1 (When SC-509 is installed) • C6903: DSC board bus check NG1-2 (When SC-509 is installed)
  • C6901: When MFP detects that DSC board/1 (front side) is not properly installed. • C6902, C6903: When DSC bus check (front side) detects an error.
• Causes: • DSC board/1 (DSCB/1; SC-509) • CPU board (CPUB)
• Troubleshooting Guides: 1. Check the connector between DSCB/1 CN1-CPUB CN9 for proper connection and correct as necessary. 2. Replace DSCB/1. 3. Replace CPUB.

• Code: C6911, C6912, C6913
• Description: • C6911: DSC board mount failure 2 (When SC-509 is installed) • C6912: DSC board bus check NG2-1 (When SC-509 is installed) • C6913: DSC board bus check NG2-2 (When SC-509 is installed)
  • C6911: When MFP detects that DSC board/1 (back side) is not properly installed. • C6912, C6913: When DSC bus check (back side) detects an error.
• Causes: • DSC board/1 (DSCB/1; SC-509) • CPU board (CPUB)
• Troubleshooting Guides: 1. Check the connector between DSCB/1 CN1-CPUB CN9 for proper connection and correct as necessary. 2. Replace DSCB/1. 3. Replace CPUB.

• Code: C6F01 … C6FDD
• Description: • C6F01: Scanner sequence trouble 1 • C6F02: Scanner sequence trouble 2 • C6F03: Scanner sequence trouble 3 • C6F04: Scanner sequence trouble 4 • C6F05: Scanner sequence trouble 5 • C6F06: Scanner sequence trouble 6 • C6F07: Scanner sequence trouble 7 • C6F08: Scanner sequence trouble 8 • C6F09: Scanner sequence trouble 9 • C6F0A: Scanner sequence trouble 10 • C6FDC: Scanner sequence trouble DC • C6FDD: Scanner sequence trouble DD
  The original transport interval becomes shorter than the predetermined value due to an original transport control error in original reading in DF.
• Causes: • CPU board (CPUB) • Base board (BASEB) • DF control board (DFCB)
• Troubleshooting Guides: 1. Correct the harness connection between main body and DF if faulty. 2. Check CPUB for proper installation and correct as necessary. 3. Replace DFCB. (DF-632 / DF-714) 4. Replace CPUB. 5. Replace BASEB.

• Code: C7106
• Description: Paper exit/reverse motor failure.
  After starting the motor, an error is detected for the malfunction detection signal.
• Causes: • Paper exit/reverse motor (M4) • Base board (BASEB)
• Troubleshooting Guides: 1. Check the connector between M4-BASEB CN18E for proper connection and correct as necessary. 2. Check the connector of M4 for proper drive coupling and correct as necessary. 3. M4 conduction check. • Control signal: BASEB CN18E-3 to 6 • Location of electrical component: 5-C 4. Replace M4. 5. Replace BASEB.

• Code: C7107
• Description: ADU transport motor failure.
  After starting the motor, an error is detected for the malfunction detection signal.
• Causes: • ADU transport motor (M5) • Base board (BASEB)
• Troubleshooting Guides: 1. Check the connector between M5-relay CN86-BASEB CN18E for proper connection and correct as necessary. 2. Check the connector of M5 for proper drive coupling and correct as necessary. 3. M5 conduction check. • Control signal: BASEB CN18E-7 to 10 • Location of electrical component: 5-C 4. Replace M5. 5. Replace BASEB.

• Code: C7111
• Description: Tray 1 lift-up motor failure.
  After starting the motor, an error is detected for the malfunction detection signal.
• Causes: • Tray 1 lift-up motor (M12) • Base board (BASEB)
• Troubleshooting Guides: 1. Check the connector between M12-relay CN180-BASEB CN25E for proper connection and correct as necessary. 2. Check the connector of M12 for proper drive coupling and correct as necessary. 3. M12 conduction check. • Control signal: BASEB CN25E-1 (REM) • Location of electrical component: 17-K 4. Replace M12. 5. Replace BASEB.

• Code: C7112
• Description: Tray 2 lift-up motor failure.
  After starting the motor, an error is detected for the malfunction detection signal.
• Causes: • Tray 2 lift-up motor (M13) • Base board (BASEB)
• Troubleshooting Guides: 1. Check the connector between M13-relay CN181-BASEB CN25E for proper connection and correct as necessary. 2. Check the connector of M13 for proper drive coupling and correct as necessary. 3. M13 conduction check. • Control signal: BASEB CN25E-10 (REM) • Location of electrical component: 18-K 4. Replace M13. 5. Replace BASEB.

• Code: C7131
• Description: Toner supply motor/C failure.
  After starting the motor, an error is detected for the malfunction detection signal.
• Causes: • Toner supply motor/C (M7) • Expansion control board (EXCB)
• Troubleshooting Guides: 1. Check the connector between M7-EXCB CN11EX for proper connection and correct as necessary. 2. Check the connector of M7 for proper drive coupling and correct as necessary. 3. M7 conduction check. • Control signal: EXCB CN11EX-17 to 20 • Location of electrical component: 5-P 4. Replace M7. 5. Replace EXCB.

• Code: C7132
• Description: Toner cartridge motor/CK failure.
  After starting the motor, an error is detected for the malfunction detection signal.
• Causes: • Toner cartridge motor/CK (M25) • Expansion control board (EXCB)
• Troubleshooting Guides: 1. Check the connector between M25-EXCB CN11EX for proper connection and correct as necessary. 2. Check the connector of M25 for proper drive coupling and correct as necessary. 3. M25 conduction check. • Control signal: EXCB CN11EX-1 to 4 • Location of electrical component: 4-P 4. Replace M25. 5. Replace EXCB.

• Code: C7133
• Description: Toner supply motor/M failure.
  After starting the motor, an error is detected for the malfunction detection signal.
• Causes: • Toner supply motor/M (M8) • Expansion control board (EXCB)
• Troubleshooting Guides: 1. Check the connector between M8-EXCB CN11EX for proper connection and correct as necessary. 2. Check the connector of M8 for proper drive coupling and correct as necessary. 3. M8 conduction check. • Control signal: EXCB CN11EX-13 to 16 • Location of electrical component: 4-P 4. Replace M8. 5. Replace EXCB.

• Code: C7134
• Description: Toner cartridge motor/YM failure.
  After starting the motor, an error is detected for the malfunction detection signal.
• Causes: • Toner cartridge motor/YM (M10) • Expansion control board (EXCB)
• Troubleshooting Guides: 1. Check the connector between M10-EXCB CN11EX for proper connection and correct as necessary. 2. Check the connector of M10 for proper drive coupling and correct as necessary. 3. M10 conduction check. • Control signal: EXCB CN11EX-5 to 8 • Location of electrical component: 4-P 4. Replace M10. 5. Replace EXCB.

• Code: C7135
• Description: Toner supply motor/Y failure.
  After starting the motor, an error is detected for the malfunction detection signal.
• Causes: • Toner supply motor/Y (M9) • Expansion control board (EXCB)
• Troubleshooting Guides: 1. Check the connector between M9-EXCB CN11EX for proper connection and correct as necessary. 2. Check the connector of M9 for proper drive coupling and correct as necessary. 3. M9 conduction check. • Control signal: EXCB CN11EX-9 to 12 • Location of electrical component: 4-P 4. Replace M9. 5. Replace EXCB.

• Code: C7137
• Description: Toner supply motor/K failure
  After starting the motor, an error is detected for the malfunction detection signal.
• Causes: • Toner supply motor/K (M6) • Expansion control board (EXCB)
• Troubleshooting Guides: 1. Check the connector between M6-relay CN126-EXCB CN10EX for proper connection and correct as necessary. 2. Check the connector of M6 for proper drive coupling and correct as necessary. 3. M6 conduction check. • Control signal: EXCB CN10EX-16 to 19 • Location of electrical component: 11-P 4. Replace M6. 5. Replace EXCB.

• Code: C7139
• Description: Waste toner transport motor failure
  After starting the motor, an error is detected for the malfunction detection signal.
• Causes: • Waste toner transport motor (M20) • Expansion control board (EXCB)
• Troubleshooting Guides: 1. Check the connector between M20-relay CN92-EXCB CN10EX for proper connection and correct as necessary. 2. Check the connector of M20 for proper drive coupling and correct as necessary. 3. M20 conduction check. • Control signal: EXCB CN10EX-12 to 15 • Location of electrical component: 11-P 4. Replace M20. 5. Replace EXCB.

• Code: C7141
• Description: Fusing pressure motor failure
  After starting the motor, an error is detected for the malfunction detection signal.
• Causes: • Fusing pressure motor (M11) • Expansion control board (EXCB)
• Troubleshooting Guides: 1. Check the connector between M11-relay CN112-EXCB CN14EX for proper connection and correct as necessary. 2. Check the connector of M11 for proper drive coupling and correct as necessary. 3. M11 conduction check. • Control signal: EXCB CN14EX-11 to 14 • Location of electrical component: 6-P 4. Replace M11. 5. Replace EXCB.

• Code: C7151, C7152, C7153
• Description: • C7151: Skew correction motor/C failure • C7152: Skew correction motor/M failure • C7153: Skew correction motor/Y failure
  After starting the motor, an error is detected for the malfunction detection signal.
• Causes: • PH unit • Expansion control board (EXCB)
• Troubleshooting Guides: 1. Check the connector between the PH unit-relay CN300-EXCB CN7EX for proper connection and correct as necessary. 2. PH unit conduction check • Control signal: EXCB CN7EX-1 to 6 (C7153), EXCB CN7EX-7 to 12 (C7152), EXCB CN7EX-13 to 18 (C7151) • Location of electrical component: 9-Q 3. Replace the PH unit. 4. Replace EXCB.

• Code: C7201
• Description: Tray 1 paper feed clutch failure
  After starting the clutch, an error is detected for the malfunction detection signal.
• Causes: • Tray 1 paper feed clutch (CL3) • Base board (BASEB)
• Troubleshooting Guides: 1. Check the connector between CL3-relay CN33-relay CN30-BASEB CN26E for proper connection and correct as necessary. 2. Check the connector of CL3 for proper drive coupling and correct as necessary. 3. CL3 conduction check. • Control signal: BASEB CN26EA-20 (ON) • Location of electrical component: 11-K 4. Replace CL3. 5. Replace BASEB.

• Code: C7202
• Description: Tray 2 paper feed clutch failure
  After starting the clutch, an error is detected for the malfunction detection signal.
• Causes: • Tray 2 paper feed clutch (CL1) • Base board (BASEB)
• Troubleshooting Guides: 1. Check the connector between CL1-relay CN43-relay CN40-BASEB CN23E for proper connection and correct as necessary. 2. Check the connector of CL1 for proper drive coupling and correct as necessary. 3. CL1 conduction check. • Control signal: BASEB CN23E-16 (ON) • Location of electrical component: 16-K 4. Replace CL1. 5. Replace BASEB.

• Code: C7205
• Description: Tray 2 vertical transport clutch failure
  After starting the clutch, an error is detected for the malfunction detection signal.
• Causes: • Tray 2 vertical transport clutch (CL2) • Base board (BASEB)
• Troubleshooting Guides: 1. Check the connector between CL2-relay CN44-relay CN40-BASEB CN23E for proper connection and correct as necessary. 2. Check the connector of CL2 for proper drive coupling and correct as necessary. 3. CL2 conduction check. • Control signal: BASEB CN23E-19 (ON) • Location of electrical component: 17-K 4. Replace CL2. 5. Replace BASEB.

• Code: C7206
• Description: Bypass tray paper feed clutch failure.
  After starting the clutch, an error is detected for the malfunction detection signal.
• Causes: • Bypass tray paper feed clutch (CL7) • Base board (BASEB)
• Troubleshooting Guides: 1. Check the connector between CL7-relay CN20-relay CN13-BASEB CN26E for proper connection and correct as necessary. 2. Check the connector of CL7 for proper drive coupling and correct as necessary. 3. CL7 conduction check. • Control signal: BASEB CN26EA-12 (ON) • Location of electrical component: 10-K 4. Replace CL7. 5. Replace BASEB.

• Code: C7207
• Description: Paper feed roller fast clutch failure
  After starting the clutch, an error is detected for the malfunction detection signal.
• Causes: • Paper feed roller fast clutch (CL10) • Base board (BASEB)
• Troubleshooting Guides: 1. Check the connector between CL10-relay CN28-BASEB CN27E for proper connection and correct as necessary. 2. Check the connector of CL10 for proper drive coupling and correct as necessary. 3. CL10 conduction check. • Control signal: BASEB CN27EA-2 (ON) • Location of electrical component: 13-K 4. Replace CL10. 5. Replace BASEB.

• Code: C720A
• Description: Registration clutch failure.
  After starting the clutch, an error is detected for the malfunction detection signal.
• Causes: • Registration clutch (CL4) • Base board (BASEB)
• Troubleshooting Guides: 1. Check the connector between CL4-relay CN73-relay CN170-BASEB CN15E for proper connection and correct as necessary. 2. Check the connector of CL4 for proper drive coupling and correct as necessary. 3. CL4 conduction check. • Control signal: BASEB CN15E-2 (ON) • Location of electrical component: 3-C 4. Replace CL4. 5. Replace BASEB.

• Code: C720B
• Description: 1st transfer pressure clutch failure.
  After starting the clutch, an error is detected for the malfunction detection signal.
• Causes: • 1st transfer pressure clutch (CL5) • Expansion control board (EXCB)
• Troubleshooting Guides: 1. Check the connector between CL5-relay CN118-EXCB CN14EX for proper connection and correct as necessary. 2. Check the connector of CL5 for proper drive coupling and correct as necessary. 3. CL5 conduction check. • Control signal: EXCB CN14EX-9 (REM) • Location of electrical component: 6-P 4. Replace CL5. 5. Replace EXCB.

• Code: C720D
• Description: ADU transport clutch failure
  After starting the clutch, an error is detected for the malfunction detection signal.
• Causes: • ADU transport clutch (CL6) • Base board (BASEB)
• Troubleshooting Guides: 1. Check the connector between CL6-relay CN12-BASEB CN18E for proper connection and correct as necessary. 2. Check the connector of CL6 for proper drive coupling and correct as necessary. 3. CL6 conduction check. • Control signal: BASEB CN18E-1 (REM) • Location of electrical component: 5-C 4. Replace CL6. 5. Replace BASEB.

• Code: C7241
• Description: Bypass tray lift-up solenoid failure
  After starting the solenoid, an error is detected for the malfunction detection signal.
• Causes: • Bypass tray lift-up solenoid (SD1) • Base board (BASEB)
• Troubleshooting Guides: 1. Check the connector between SD1-relay CN21-relay CN13-BASEB CN26E for proper connection and correct as necessary. 2. Check the connector of SD1 for proper drive coupling and correct as necessary. 3. SD1 conduction check. • Control signal: BASEB CN26EA-9 (ON) • Location of electrical component: 10-K 4. Replace SD1. 5. Replace BASEB.

• Code: C7242
• Description: Bypass pick-up roller solenoid failure
  After starting the solenoid, an error is detected for the malfunction detection signal.
• Causes: • Bypass tray pick-up roller solenoid (SD6) • Base board (BASEB)
• Troubleshooting Guides: 1. Check the connector between SD6-relay CN191-relay CN13-BASEB CN26E for proper connection and correct as necessary. 2. Check the connector of SD6 for proper drive coupling and correct as necessary. 3. SD6 conduction check. • Control signal: BASEB CN26EA-7 (ON) • Location of electrical component: 10-K 4. Replace SD6. 5. Replace BASEB.

• Code: C7243
• Description: Exit path switch solenoid failure
  After starting the solenoid, an error is detected for the malfunction detection signal.
• Causes: • Exit path switch solenoid (SD3) • Base board (BASEB)
• Troubleshooting Guides: 1. Check the connector between SD3-relay CN108-BASEB CN13E for proper connection and correct as necessary. 2. Check the connector of SD3 for proper drive coupling and correct as necessary. 3. SD3 conduction check. • Control signal: BASEB CN13E-7 (24V) • Location of electrical component: 12-C 4. Replace SD3. 5. Replace BASEB.

• Code: C7251
• Description: Developing solenoid failure
  After starting the solenoid, an error is detected for the malfunction detection signal.
• Causes: • Developing solenoid (SD4) • Expansion control board (EXCB)
• Troubleshooting Guides: 1. Check the connector between SD4-relay CN159-EXCB CN14EX for proper connection and correct as necessary. 2. Check the connector of SD4 for proper drive coupling and correct as necessary. 3. SD4 conduction check. • Control signal: EXCB CN14EX-7 (REM) • Location of electrical component: 6-P 4. Replace SD4. 5. Replace EXCB.

• Code: C7301
• Description: PH/power supply cooling fan failure
  After starting the fan, an error is detected for the malfunction detection signal.
• Causes: • PH/power supply cooling fan (FM1) • Expansion control board (EXCB)
• Troubleshooting Guides: 1. Check the connector between FM1-relay CN26-EXCB CN10EX for proper connection and correct as necessary. 2. Check the connector of FM1 for proper drive coupling and correct as necessary. 3. FM1 conduction check. • Control signal: EXCB CN10EX-6 (REM), EXCB CN10EX-8 (LOCK) • Location of electrical component: 10-P 4. Replace FM1. 5. Replace EXCB.

• Code: C7302
• Description: Transfer belt cleaner cooling fan failure
  After starting the fan, an error is detected for the malfunction detection signal.
• Causes: • Transfer belt cleaner cooling fan (FM2) • Expansion control board (EXCB)
• Troubleshooting Guides: 1. Check the connector between FM2-relay CN115-EXCB CN10EX for proper connection and correct as necessary. 2. Check the connector of FM2 for proper drive coupling and correct as necessary. 3. FM2 conduction check. • Control signal: EXCB CN10EX-9 (REM), EXCB CN10EX-11 (LOCK) • Location of electrical component: 11-P 4. Replace FM2. 5. Replace EXCB.

• Code: C7304
• Description: Toner cartridge cooling fan failure
  After starting the fan, an error is detected for the malfunction detection signal.
• Causes: • Toner cartridge cooling fan (FM4) • Expansion control board (EXCB)
• Troubleshooting Guides: 1. Check the connector between FM4-relay CN78-EXCB CN14EX for proper connection and correct as necessary. 2. Check the connector of FM4 for proper drive coupling and correct as necessary. 3. FM4 conduction check. • Control signal: EXCB CN14EX-4 (REM), EXCB CN10EX-6 (LOCK) • Location of electrical component: 5-P 4. Replace FM4. 5. Replace EXCB.

• Code: C7305
• Description: Paper cooling fan failure
  After starting the fan, an error is detected for the malfunction detection signal.
• Causes: • Paper cooling fan (FM8) • Expansion control board (EXCB)
• Troubleshooting Guides: 1. Check the connector between FM8-relay CN27-EXCB CN14EX for proper connection and correct as necessary. 2. Check the connector of FM8 for proper drive coupling and correct as necessary. 3. FM8 conduction check. • Control signal: EXCB CN14EX-1 (REM), EXCB CN14EX-3 (LOCK) • Location of electrical component: 5-P 4. Replace FM8. 5. Replace EXCB.

• Code: C7501
• Description: Tray 2 upper limit sensor failure
  The tray 2 upper limit sensor (PS22) does not change even after the lapse of a predetermined period of time after tray 2 is opened and closed, after C0204 (Tray 2 feeder up/down abnormality) is detected.
• Causes: • Tray 2 upper limit sensor (PS22) • Base board (BASEB)
• Troubleshooting Guides: 1. Check the connector between PS22-relay CN40-BASEB CN23E for proper connection and correct as necessary. 2. Replace PS22. 3. Replace BASEB.

• Code: C7502
• Description: Tray 1 upper limit sensor failure
  The tray 1 upper limit sensor (PS25) does not change even after the lapse of a predetermined period of time after tray 1 is opened and closed, after C0202 (Tray 1 feeder up/down abnormality) is detected.
• Causes: • Tray 1 upper limit sensor (PS25) • Base board (BASEB)
• Troubleshooting Guides: 1. Check the connector between PS25-relay CN30-BASEB CN26E for proper connection and correct as necessary. 2. Replace PS25. 3. Replace BASEB.

• Code: C7601
• Description: Power line A1 error
  The fuse detection unit detected an error for a predetermined time.
• Causes: • Transport motor (M1) • Base board (BASEB)
• Troubleshooting Guides: 1. BASEB F1E conduction check 2. Check the connector between M1-BASEB CN19E for proper connection and correct as necessary. 3. M1 load check • Check code: 40 • Multi code: 1, 4, 5 • Control signal: BASEB CN19EA-1 to 5 • Location of electrical component: 1-C 4. Replace M1. 5. Replace BASEB.

• Code: C7602
• Description: Power line A2 error
  The fuse detection unit detected an error for a predetermined time.
• Causes: • PC motor (M2) • Base board (BASEB)
• Troubleshooting Guides: 1. BASEB F2E conduction check 2. Check the connector between M2-BASEB CN19E for proper connection and correct as necessary. 3. M2 load check • Check code: 41 • Multi code: 1, 4, 5 • Control signal: BASEB CN19EB-1 to 5 • Location of electrical component: 2-C 4. Replace M2. 5. Replace BASEB.

• Code: C7603
• Description: Power line A3 error
  The fuse detection unit detected an error for a predetermined time.
• Causes: • Developing motor (M21) • Base board (BASEB)
• Troubleshooting Guides: 1. BASEB F3E conduction check 2. Check the connector between M21-BASEB CN19E for proper connection and correct as necessary. 3. M21 load check • Check code: 50 • Multi code: 1, 4, 5 • Control signal: BASEB CN19EB-6 to 10 • Location of electrical component: 2-C 4. Replace M21. 5. Replace BASEB.

• Code: C7604
• Description: Power line A4 error
  The fuse detection unit detected an error for a predetermined time.
• Causes: • Fusing motor (M3) • Base board (BASEB)
• Troubleshooting Guides: 1. BASEB F4E conduction check 2. Check the connector between M3-BASEB CN19E for proper connection and correct as necessary. 3. M3 load check • Check code: 45 • Multi code: 1, 4, 5, 6 • Control signal: BASEB CN19EA-6 to 10 • Location of electrical component: 1-C 4. Replace M3. 5. Replace BASEB.

• Code: C7605
• Description: Power line A5 error
  The fuse detection unit detected an error for a predetermined time.
• Causes: • High voltage unit (HV) • Base board (BASEB)
• Troubleshooting Guides: 1. BASEB F5E conduction check 2. Check the connector between HV CN1-BASEB CN26E, HV CN2-BASEB CN21E for proper connection and correct as necessary. 3. Replace HV. 4. Replace BASEB.

• Code: C7607
• Description: Power line A7 error
  The fuse detection unit detected an error for a predetermined time.
• Causes: • Tray 2 vertical transport clutch (CL2) • Tray 1 paper feed clutch (CL3) • Registration clutch (CL4) • Bypass tray paper feed clutch (CL7) • Paper feed roller fast clutch (CL10) • Base board (BASEB)
• Troubleshooting Guides: 1. BASEB F7E conduction check 2. Check the connector between CL2-relay CN44-relay CN40-BASEB CN23E for proper connection and correct as necessary. 3. Check the connector between CL3-relay CN33-relay CN30-BASEB CN26E for proper connection and correct as necessary. 4. Check the connector between CL4-relay CN73-relay CN170-BASEB CN15E for proper connection and correct as necessary. 5. Check the connector between CL7-relay CN20-relay CN13-BASEB CN26E for proper connection and correct as necessary. 6. Check the connector between CL10-relay CN28-BASEB CN27E for proper connection and correct as necessary. 7. CL2 conduction check. • Control signal: BASEB CN23E-19 (ON) • Location of electrical component: 17-K 8. CL3 conduction check. • Control signal: BASEB CN26EA-20 (ON) • Location of electrical component: 11-K 9. CL4 conduction check. • Control signal: BASEB CN15E-2 (ON) • Location of electrical component: 3-C 10. CL7 conduction check. • Control signal: BASEB CN26EA-12 (ON) • Location of electrical component: 10-K 11. CL10 conduction check. • Control signal: BASEB CN27EA-2 (ON) • Location of electrical component: 13-K 12. Replace CL2. 13. Replace CL3. 14. Replace CL4. 15. Replace CL7. 16. Replace CL10. 17. Replace BASEB.

• Code: C760A
• Description: Power line A10 error
  The fuse detection unit detected an error for a predetermined time.
• Causes: • PC control board (PCCB) • Base board (BASEB)
• Troubleshooting Guides: 1. BASEB F11E conduction check 2. Check the connector between PCCB CN2-relay CN65-BASEB CN29E for proper connection and correct as necessary. 3. Replace PCCB. (PC-116/PC-216 / PC-416) 4. Replace BASEB.

• Code: C760B
• Description: Power line A11 error
  The fuse detection unit detected an error for a predetermined time.
• Causes: • Expansion control board (EXCB) • Base board (BASEB)
• Troubleshooting Guides: 1. BASEB F12E conduction check 2. Check the connector between EXCB CN1EX-BASEB CN11E for proper connection and correct as necessary. 3. Replace EXCB. 4. Replace BASEB.

• Code: C760C
• Description: Power line A12 error
  The fuse detection unit detected an error for a predetermined time.
• Causes: • Total counter (TCT) (Japan model only) • Key counter (KCT) • Base board (BASEB)
• Troubleshooting Guides: 1. BASEB F13E conduction check 2. Check the connector between TCT-relay CN117-BASEB CN13E for proper connection and correct as necessary. (Japan model only) 3. Check the connector between KCT-relay CN119-BASEB CN3E for proper connection and correct as necessary. 4. Replace the key counter. 5. Replace BASEB.

• Code: C760D
• Description: Power line A13 error
  The fuse detection unit detected an error for a predetermined time.
• Causes: • DF control board (DFCB) • Scanner drive board (SCDB) • Base board (BASEB)
• Troubleshooting Guides: 1. BASEB F14E conduction check 2. BASEB F15E conduction check 3. Check the connector between SCDB CN1-BASEB CN7E for proper connection and correct as necessary. 4. Check the connector between DFCB J21-relay CN2DF-BASEB CN9E for proper connection and correct as necessary. 5. Replace SCDB. 6. Replace DFCB. (DF-632 / DF-714) 7. Replace BASEB.

• Code: C760E
• Description: Power line A14 error
  The fuse detection unit detected an error for a predetermined time.
• Causes: • Front door switch (SW2) • Right door switch (SW3) • Base board (BASEB)
• Troubleshooting Guides: 1. BASEB F15E conduction check 2. Check the connector between SW2-BASEB CN3E for proper connection and correct as necessary. 3. Check the connector between SW3-BASEB CN3E, CN4E for proper connection and correct as necessary. 4. Replace SW2 or SW3. 5. Replace BASEB.

• Code: C760F
• Description: Power line A15 error
  The fuse detection unit detected an error for a predetermined time.
• Causes: • Clean unit drive board (CUDB) • Base board (BASEB)
• Troubleshooting Guides: 1. BASEB F17E conduction check 2. Check the connector between CUDB CN1-relay CN28D-BASEB CN28E for proper connection and correct as necessary. 3. Replace CUDB. 4. Replace BASEB.

• Code: C7622, C7623
• Description: • C7622: Power line B2 error • C7623: Power line B3 error
  The fuse detection unit detected an error for a predetermined time.
• Causes: • PH unit • Expansion control board (EXCB)
• Troubleshooting Guides: 1. EXCB ICP1 or ICP3 conduction check. 2. Check the connector between the PH unit-relay CN306-EXCB CN10EX for proper connection and correct as necessary. 3. Check the connector between the PH unit-relay CN300-EXCB CN7EX for proper connection and correct as necessary. 4. Replace the PH unit. 5. Replace EXCB.

• Code: C7631
• Description: Supply power line 1 error
  All of the fuse detection units of the same supply power line (24V11) detected an error for a predetermined time.
• Causes: • DC power supply (DCPU) • Expansion control board (EXCB) • Base board (BASEB)
• Troubleshooting Guides: 1. BASEB F11E, F12E, F13E, F14E, F15E, F17E conduction check 2. Check the connector between DCPU CN4, CN7-BASEB CN14E for proper connection and correct as necessary. 3. Check the connector between BASEB CN11E-EXCB CN1EX for proper connection and correct as necessary. 4. Replace BASEB. 5. Replace EXCB. 6. Replace DCPU.

• Code: C7633
• Description: Supply power line 3 error
  All of the fuse detection units of the same supply power line (24V21) detected an error for a predetermined time.
• Causes: • DC power supply (DCPU) • Base board (BASEB)
• Troubleshooting Guides: 1. Check the connector between DCPU CN7, CN10-BASEB CN20E for proper connection and correct as necessary. 2. Replace BASEB. 3. Replace DCPU.

• Code: C8101
• Description: Before reading pressure welding alienation mechanism (When DF-632 or DF-714 is installed)
  <When DF-632 is installed> • During a pressure motion being performed, the reading roll position sensor (PS11) output does not change from H to L. • During a retraction motion being performed, the reading roll position sensor (PS11) output does not change from L to H.
  <When DF-714 is installed> • During a pressure motion being performed, the reading roll position sensor (PS4) output does not change from H to L. • During a retraction motion being performed, the reading roll position sensor (PS4) output does not change from L to H.
• Causes: <When DF-632 is installed> • Reading roll release motor (M5) • Reading roll position sensor (PS11) • DF control board (DFCB)
  <When DF-714 is installed> • Reading roll release motor (M4) • Reading roll position sensor (PS4) • DF control board (DFCB)
• Troubleshooting Guides: When DF-632 is installed 1. Check the connector between M5-DFCB J18 for proper connection and correct as necessary. 2. Check the connector of M5 for proper drive coupling and correct as necessary. 3. Check the connector between PS11-DFCB J18 for proper connection and correct as necessary. 4. PS11 I/O check, sensor check • Control signal: DFCB J18-3 (ON) • Location of electrical component: DF-632 1-G 5. M5 load check • Check code: 60 • Multi code: 81, 82 • Control signal: DFCB J18-4 to 5 • Location of electrical component: DF-632 2-G 6. Replace M5. 7. DFCB F8 conduction check 8. Replace DFCB.
  When DF-714 is installed 1. Check the connector between M4-DFCB J18 for proper connection and correct as necessary. 2. Check the connector of M4 for proper drive coupling and correct as necessary. 3. Check the connector between PS4-DFCB J18 for proper connection and correct as necessary. 4. PS4 I/O check, sensor check • Control signal: DFCB J18-3 (ON) • Location of electrical component: DF-714 1-G 5. M4 load check • Check code: 60 • Multi code: 81, 82 • Control signal: DFCB J18-4 to 5 • Location of electrical component: DF-714 1-G 6. Replace M4. 7. DFCB F8 conduction check 8. Replace DFCB.

• Code: C8107
• Description: Glass cleaning mechanism trouble (When DF-632 or DF-714 is installed)
  <When DF-632 is installed> The document reading glass cleaning sensor (PS12) is not turned ON after the set period of time has elapsed after the glass cleaning motor (M4) is turned ON.
  <When DF-714 is installed> The document reading glass cleaning sensor (PS13) is not turned ON after the set period of time has elapsed after the document reading glass cleaning motor (M6) is turned ON.
• Causes: <When DF-632 is installed> • Glass cleaning motor (M4) • Document reading glass cleaning sensor (PS12) • DF control board (DFCB)
  <When DF-714 is installed> • Document reading glass cleaning motor (M6) • Document reading glass cleaning sensor (PS13) • DF control board (DFCB)
• Troubleshooting Guides: When DF-632 is installed 1. Check the connector between M4-DFCB J8 for proper connection and correct as necessary. 2. Check the connector of M4 for proper drive coupling and correct as necessary. 3. Check the connector between PS12-DFCB J15 for proper connection and correct as necessary. 4. PS12 I/O check, sensor check • Control signal: DFCB J15-5 (ON) • Location of electrical component: DF-632 3-G 5. M4 load check • Check code: 60 • Multi code: 65, 66, 67 • Control signal: DFCB J8-1 to 4 • Location of electrical component: DF-632 1 to 2-B 6. Replace M4. 7. Replace DFCB.
  When DF-714 is installed 1. Check the connector between M6-DFCB J8 for proper connection and correct as necessary. 2. Check the connector of M6 for proper drive coupling and correct as necessary. 3. Check the connector between PS13-DFCB J15 for proper connection and correct as necessary. 4. PS13 I/O check, sensor check • Control signal: DFCB J15-5 (ON) • Location of electrical component: DF-714 3-G 5. M6 load check • Check code: 60 • Multi code: 65, 66, 67 • Control signal: DFCB J8-1 to 4 • Location of electrical component: DF-714 1-B 6. Replace M6. 7. Replace DFCB.

• Code: C8302
• Description: Cooling fan trouble (When DF-714 is installed)
  • The lock signal continues to detect L during a given time while the DF cooling fan motor (FM1) is spinning. • The lock signal continues to detect H during a given time while the DF cooling fan motor (FM1) is during halts.
• Causes: • DF cooling fan motor (FM1) • DF control board (DFCB)
• Troubleshooting Guides: 1. Check the connector between FM1-DFCB J16 for proper connection and correct as necessary. 2. Check the fan for possible overload and correct as necessary. 3. FM1 load check • Check code: 60 • Multi code: 113 • Control signal: DFCB J16-3 (ON) • Location of electrical component: DF-714 7-G 4. Replace FM1. 5. DFCB F6 conduction check 6. Replace DFCB.

• Code: C8402
• Description: Multi feed detection board failure (When DF-714 is installed)
  When the main power switch ON or when the original is being conveyed, the AD value there is no paper loaded state is out of the predetermined range.
• Causes: • Multi feed detection board/TX (MFDB/TX) • Multi feed detection board/RX (MFDB/RX) • Multi feed receiver board (MFRB) • DF control board (DFCB)
• Troubleshooting Guides: 1. Execute [Service Mode] -> [ADF] -> [Multi-Feed DetectionAdj.]. 2. Check the connector between MFDB/TX-relay CN2-DFCB J32 for proper connection and correct as necessary. 3. Check the connector between MFDB/RX-MFRB J3 for proper connection and correct as necessary. 4. Check the connector between MFRB J4-DFCB J30 for proper connection and correct as necessary. 5. MFDB/TX operation check • Control signal: DFCB J32-1 to 3 • Location of electrical component: DF-714 2-B 6. MFDB/RX operation check • Control signal: MFRB J3-1 to 3 • Location of electrical component: DF-714 3-A 7. Replace MFRB. 8. Replace DFCB.

• Code: C9401, C9402
• Description: • C9401: Exposure LED lighting failure • C9402: Exposure LED lighting abnormally
  • C9401: The output from the CCD sensor is a predetermined value or less during CCD sensor gain adjustment. • C9402: The average output value of the CCD sensor with the scanner at its standby position is a predetermined value or more at the end of a scan job.
• Causes: • LED exposure unit • Flat cable (LED exposure unit) • CCD unit • Scanner drive board (SCDB) • CPU board (CPUB) • Base board (BASEB)
• Troubleshooting Guides: 1. Correct the harness connection between SCDB CN3-LU201 if faulty. 2. Check the connector between SCDB CN2-BASEB CN6E for proper connection and correct as necessary. 3. Check the connector between CCDB CN2-BASEB CN6 for proper connection and correct as necessary. 4. Check CPUB for proper installation and correct as necessary. 5. Replace the LED exposure unit. 6. Replace the CCD unit. 7. Replace SCDB. 8. Replace CPUB. 9. Replace BASEB.

• Code: C9403, C9404
• Description: • C9403: CIS LED lighting failure (When DF-714 is installed) • C9404: CIS LED lighting abnormally (When DF-714 is installed)
  • C9403: At the CIS gain adjustment, the machine detected that the output of the CIS LED is lower than the specified value. • C9404: After a scan job is completed, the machine detected that the average output of the CIS LED is greater than the specified value.
• Causes: • CIS cable • CIS module (CIS) • CIS power supply (CISPU) • CPU board (CPUB) • Base board (BASEB)
• Troubleshooting Guides: 1. Check the back side scanning shading shaft for any stain, and clean up it as necessary. 2. Check that the bushing of the back side glass cleaning roller unit is on the standby position. 3. Correct the harness connection between CIS J221-BASEB CN5 if faulty. 4. Correct the harness connection between CIS J222-CISPU J2 if faulty. 5. Check CPUB for proper installation and correct as necessary. 6. Measure the voltage of CISPU J1-1. • Control signal: CISPU J1-1 (DC12V) • Location of electrical component: DF-714 5-B 7. Measure the voltage of CIS J222-1, J222-2 and J222-5. • Control signal: CIS J222-1 (DC5V), CIS J222-2 (DC5V), CIS J222-5 (DC12V) • Location of electrical component: DF-714 6-B 8. For any abnormality in the measurement result, replace the CIS cable. 9. CIS F1 or F2conduction check 10. Replace CIS. 11. Replace CISPU. 12. Replace CPUB. 13. Replace BASEB.

• Code: C9701
• Description: Front side reading device cable break detection
  The cable between the CCD board (CCDB) and the base board (BASEB) is break.
• Causes: • CCD unit • CPU board (CPUB) • Base board (BASEB)
• Troubleshooting Guides: 1. Correct the cable connection between CCDB CN2-BASEB CN6 if faulty. 2. Check CPUB for proper installation and correct as necessary. 3. Replace the CCD unit. 4. Replace CPUB. 5. Replace BASEB.

• Code: C9702
• Description: Back side reading device cable break detection (When DF-714 is installed)
  The cable between the CIS module (CIS) and the base board (BASEB) is break.
• Causes: • CIS cable • CIS module (CIS) • CPU board (CPUB) • Base board (BASEB)
• Troubleshooting Guides: 1. Correct the cable connection between CIS J221- BASEB CN5 if faulty. 2. Check CPUB for proper installation and correct as necessary. 3. Replace the CIS cable. 4. Replace CIS. 5. Replace CPUB. 6. BASEB F19E conduction check 7. Replace BASEB.

• Code: CA051, CA052, CA053
• Description: • CA051: Standard controller configuration failure • CA052: Controller hardware error • CA053: Controller start failure
  • CA051: The controller of the CPU board (CPUB) is faulty. • CA052: A controller hardware error is detected in the network interface. • CA053: A controller start failure is detected in the controller interface.
• Causes: • CPU board (CPUB) • Base board (BASEB)
• Troubleshooting Guides: 1. Check to see if the following setting has been correctly made: [Service Mode] -> [System 2] -> [Image Controller Setting]. If changing the setting, turn OFF the main power switch and turn it ON again after 10 seconds or more. 2. Check the connectors on BASEB for proper connection and correct as necessary. 3. Replace CPUB. 4. Replace BASEB.

• Code: CC002
• Description: Vendor internal error
  Error occurs inside the vendor.
• Causes: • Vendor • CPU board (CPUB) • Base board (BASEB)
• Troubleshooting Guides: 1. Turn OFF the main power switch and unplug the power cord. Connect the power cord after 15 sec. or more, and turn ON the main power switch. Turn OFF and ON the power switch at the vendor side. 2. Check the connector between the vendor-BASEB CN33E for proper connection and correct as necessary. 3. Check CPUB for proper installation and correct as necessary. 4. Replace CPUB. 5. Replace BASEB. 6. Replace the vendor.

• Code: CC140
• Description: Trouble related to security
• Causes:
• Troubleshooting Guides: Contact the responsible people of KM before taking some countermeasures.

• Code: CC151, CC152
• Description: • CC151: ROM contents error upon startup (MSC) • CC152: ROM contents error upon startup (IR)
  A fault is detected in a sequence of ROM contents check of the CPUB during starting.
• Causes: • CPU board (CPUB) • Base board (BASEB)
• Troubleshooting Guides: 1. Check the ROM version. 2. Rewrite the firmware. 3. Check CPUB for proper installation and correct as necessary. 4. Replace CPUB. 5. Replace BASEB.

• Code: CC155
• Description: Finisher ROM error (When FS-533, FS-536, FS-536SD, or JS-506 is installed)
  Data of flash ROM of the finishing options is determined to be faulty when the main power switch is turned ON.
• Causes: <When FS-533, FS-536, or FS-536SD is installed> • FS control board (FSCB)
  <When JS-506 is installed> • JS control board (JSCB)
• Troubleshooting Guides: When FS-533, FS-536, or FS-536SD is installed 1. Turn OFF the main power switch and unplug the power cord. Connect the power cord after 15 sec. or more, and turn ON the main power switch. 2. Rewrite the firmware. 3. Replace FSCB. (FS-533 / FS-536/FS-536SD)
  When JS-506 is installed 1. Turn OFF the main power switch and unplug the power cord. Connect the power cord after 15 sec. or more, and turn ON the main power switch. 2. Rewrite the firmware. 3. Replace JSCB.

• Code: CC156
• Description: DF ROM error (When DF-632 or DF-714 is installed)
  Upgrade of the firmware has not been successful.
• Causes: DF control board (DFCB)
• Troubleshooting Guides: 1. Turn OFF the main power switch and unplug the power cord. Connect the power cord after 15 sec. or more, and turn ON the main power switch. 2. Rewrite the firmware. 3. Replace DFCB. (DF-632 / DF-714)

• Code: CC159, CC15A
• Description: • CC159: ROM contents error upon startup (DSC1) • CC15A: ROM contents error upon startup (DSC2)
  A fault is detected in a sequence of ROM contents check of the DSC board during starting.
• Causes: DSC board/1 (DSCB/1; SC-509)
• Troubleshooting Guides: 1. Correct the harness connection of DSCB/1 if faulty. 2. Turn OFF the main power switch and unplug the power cord. Connect the power cord after 15 sec. or more, and turn ON the main power switch. 3. Rewrite the firmware. 4. Replace DSCB/1.

• Code: CC15B
• Description: Flash ROM error (saddle) (When FS-536SD is installed)
  Data of flash ROM of the saddle is determined to be faulty when the main power switch is turned ON.
• Causes: SD control board (SDCB)
• Troubleshooting Guides: 1. Turn OFF the main power switch and unplug the power cord. Connect the power cord after 15 sec. or more, and turn ON the main power switch. 2. Rewrite the firmware. 3. Replace SDCB.

• Code: CC15C
• Description: Engine Flash ROM writing error
  Data of flash ROM of the engine is determined to be faulty.
• Causes: • CPU board (CPUB) • Base board (BASEB)
• Troubleshooting Guides: 1. Turn OFF the main power switch and unplug the power cord. Connect the power cord after 15 sec. or more, and turn ON the main power switch. 2. Check CPUB for proper installation and correct as necessary. 3. Rewrite the firmware. 4. Replace CPUB. 5. Replace BASEB.

• Code: CC163
• Description: ROM contents error (PRT)
  The wrong model of firmware is detected in the engine during the initial connection to the engine is being checked.
• Causes: • Backup board (ERB) • CPU board (CPUB) • Base board (BASEB)
• Troubleshooting Guides: 1. Rewrite the firmware. 2. Replace CPUB. NOTE . When taking the above steps, check whether CPUB is defective or not without replacing the ERB. 1. Turn OFF the main power switch and replace the current CPUB with a new one. 2. Update the firmware. 3. After completing the firmware update, turn OFF and ON the main power switch and check to see that warm-up is started. 4. When the trouble cannot be solved, reinstall the removed CPUB to the original board. 3. Replace BASEB. 4. If the above actions do not solve the problem, contact KM.

• Code: CC164
• Description: ROM contents error (MSC)
  • The wrong model of firmware is detected in the CPU board when the main power switch is turned ON. • The machine type information (Machine, Type) registered to the machine differs from the actual machine type.
• Causes: • Storage board (STRGB) • CPU board (CPUB)
• Troubleshooting Guides: 1. Check the ROM version. 2. Check the machine type information registered and reenter as necessary. For details the machine information, see “Entering the machine type information”. 3. Rewrite the firmware. 4. Replace CPUB. 5. Replace STRGB. 6. If the above actions do not solve the problem, contact KM.

• Code: CC165
• Description: ROM contents error (DF)
  When the power is turned ON, DF control board or firmware error is detected.
• Causes: DF control board (DFCB)
• Troubleshooting Guides: 1. Turn OFF the main power switch and unplug the power cord. Connect the power cord after 15 sec. or more, and turn ON the main power switch. 2. Rewrite the firmware. 3. Replace DFCB. (DF-632 / DF-714)

• Code: CC170 … CC186
• Description: • CC170: Dynamic link error during starting (AP0) • CC171: Dynamic link error during starting (AP1) • CC172: Dynamic link error during starting (AP2) • CC173: Dynamic link error during starting (AP3) • CC174: Dynamic link error during starting (AP4) • CC180: Dynamic link error during starting (LDR) • CC181: Dynamic link error during starting (IBR) • CC182: Dynamic link error during starting (IID) • CC183: Dynamic link error during starting (IPF) • CC184: Dynamic link error during starting (IMY) • CC185: Dynamic link error during starting (SPF) • CC186: Dynamic link error during starting (OAP)
  A dynamic link error occurs in the program on the CPU board due to an insufficient memory space available, a ROM fault, or other reason when the main power switch is turned ON.
• Causes: • CPU board (CPUB) • Base board (BASEB)
• Troubleshooting Guides: 1. If the trouble code “C-C172” has occurred, access [Service Mode] -> [System 2] -> [Image Controller Setting] and check to see if “Others” is set for image controller. If any of these is set, according to the kind of controller, select “Controller 0” or “Controller 1.” 2. If the trouble code ‘C-C180’ has occurred, check to install the appropriate loadable device driver for an authentication unit which is installed to the MFP. When the appropriate loadable device driver is not installed, reinstall the appropriate loadable device driver. 3. Check CPUB for proper installation and correct as necessary. 4. Replace CPUB. 5. Replace BASEB. 6. If the above actions do not solve the problem, contact KM.

• Code: CC190
• Description: Outline font load error
  An error occurred while loading the outline font.
• Causes: • Storage board (STRGB) • CPU board (CPUB) • Base board (BASEB)
• Troubleshooting Guides: 1. Check STRGB for proper installation and correct as necessary. 2. Check CPUB for proper installation and correct as necessary. 3. Select [Service Mode] -> [State Confirmation] -> [Memory/Storage Adjustment] -> [Format] and perform the function. 4. Replace STRGB. 5. Replace CPUB. 6. Replace BASEB.

• Code: CC191
• Description: Setting parameter load error (LDR)
  Upon startup, the processing of the loadable device driver setting data file failed. • RAM disk file creation failed. • Reading from the flash ROM failed. • An error occurred in API of the authentication module.
• Causes: • CPU board (CPUB) • Base board (BASEB)
• Troubleshooting Guides: 1. Turn OFF the main power switch, wait for 10 sec., then turn the switch ON. 2. Check CPUB for proper installation and correct as necessary. 3. Reinstall the loadable device driver. 4. Rewrite the firmware. 5. Replace CPUB. 6. Replace BASEB.

• Code: CC211
• Description: Authentication device general error
  When using the authentication device, authentication data is not to meet the specifications.
• Causes: • CPU board (CPUB) • Base board (BASEB) • Authentication unit
• Troubleshooting Guides: 1. Check the USB cable for proper connection. Reconnect the USB cable as necessary. 2. Check CPUB for proper installation and correct as necessary. 3. Turn OFF the main power switch, wait for 10 sec. or more, and turn ON the main power switch.

• Code: CC212
• Description: User validation error
  • An error occurred while validating the user authentication information. • The loadable device driver is not successfully installed.
• Causes: • CPU board (CPUB) • Base board (BASEB) • Authentication unit
• Troubleshooting Guides: 1. When this trouble code is generated after installing the loadable device driver, check to see if there is any file other than loadable device driver in USB memory used. If there is any file, reinstall the loadable device driver. 2. Check the USB cable for proper connection. Reconnect the USB cable as necessary. 3. Check CPUB for proper installation and correct as necessary. 4. Turn OFF the main power switch, wait for 10 sec. or more, and turn ON the main power switch. 5. Re-register the user authentication information. 6. Replace the authentication unit.

• Code: CC213
• Description: User registration error/Card information setting error
  • IC card advanced settings data is not correct when starting-up the authentication device. • Authentication information data is not correct when starting-up the authentication device. • IC card advanced settings data is not correct when setting the IC card advanced settings. • Authentication information data is not correct when setting the IC card advanced settings. • IC card advanced settings data is not correct when registering the authentication information. • Authentication information data is not correct when registering the authentication information. • IC card advanced settings data is not correct when editing the authentication information. • Authentication information data is not correct when editing the authentication information.
• Causes: • CPU board (CPUB) • Base board (BASEB) • Authentication unit
• Troubleshooting Guides: 1. Check the USB cable for proper connection. Reconnect the USB cable as necessary. 2. Check CPUB for proper installation and correct as necessary. 3. Turn OFF the main power switch, wait for 10 sec. or more, and turn ON the main power switch. 4. Reset the authentication settings. (card type, IC card advanced settings, and etc.) 5. Re-register the user authentication information.

• Code: CC214
• Description: User information deletion error
  The deletion of the user information is uncompleted.
• Causes: • CPU board (CPUB) • Base board (BASEB) • Authentication unit
• Troubleshooting Guides: 1. Check the USB cable for proper connection. Reconnect the USB cable as necessary. 2. Check CPUB for proper installation and correct as necessary. 3. Turn OFF the main power switch, wait for 10 sec. or more, and turn ON the main power switch.

• Code: CC216
• Description: Acquisition failure of the number of trials/Initialize error of number of authentication
  An error occurred during user authentication using optional authentication unit AU-102.
• Causes: • CPU board (CPUB) • Base board (BASEB) • Authentication unit
• Troubleshooting Guides: 1. Check the USB cable for proper connection. Reconnect the USB cable as necessary. 2. Check CPUB for proper installation and correct as necessary. 3. Turn OFF the main power switch, wait for 10 sec. or more, and turn ON the main power switch. 4. Reset the number of authentication trials.

• Code: CC301
• Description: Authentication customize data error
  • The master authentication customize data is corrupted upon startup. • Registration of authentication customize data in the main body has failed upon startup.
• Causes: • CPU board (CPUB) • Base board (BASEB)
• Troubleshooting Guides: 1. Check CPUB for proper installation and correct as necessary. 2. Reinstall the authentication customize data. 3. Rewrite the firmware. 4. Replace CPUB. 5. Replace BASEB.

• Code: CC302
• Description: Authentication customize data version mismatch error
  The authentication customize data version is later than the firmware version of the machine.
• Causes: • CPU board (CPUB) • Base board (BASEB)
• Troubleshooting Guides: 1. Rewrite the main body firmware with the latest one and reinstall the authentication customize data. 2. Replace CPUB. 3. Replace BASEB.

• Code: CCC00
• Description: Public user account track information error
  At the first time of startup, the nonvolatile status is reset incompletely due to any trouble (such as a shut off of the main power).
• Causes: • Storage board (STRGB) • CPU board (CPUB) • Base board (BASEB)
• Troubleshooting Guides: 1. Replace STRGB. 2. Replace CPUB. 3. Replace BASEB.

• Code: CD002
• Description: JOB RAM save error
  The error in save of job data to the memory / storage and its read error are detected.
• Causes: • Storage board (STRGB) • CPU board (CPUB) • Base board (BASEB)
• Troubleshooting Guides: 1. Check STRGB for proper installation and correct as necessary. 2. Check CPUB for proper installation and correct as necessary. 3. Select [Service Mode] -> [State Confirmation] -> [Memory/Storage Adjustment] -> [Format] -> [Logical Format] and perform the function. 4. Replace STRGB. 5. Replace CPUB. 6. Replace BASEB.

• Code: CD004, CD00F, CD020
• Description: • CD004: Storage access error (connection failure) • CD00F: Storage data transfer error • CD020: Storage verify error
  • CD004: Unable to communicate between the storage and CPU board (CPUB). • CD00F: Data transfer from the storage is faulty. • CD020: The data abnormality is detected by the storage verify check.
• Causes: • Storage board (STRGB) • CPU board (CPUB) • Base board (BASEB)
• Troubleshooting Guides: 1. Check STRGB for proper installation and correct as necessary. 2. Check CPUB for proper installation and correct as necessary. 3. Replace STRGB. 4. Replace CPUB. 5. Replace BASEB.

• Code: CD010
• Description: Storage unformat
  Unformatted storage is connected.
• Causes: • Storage board (STRGB) • CPU board (CPUB) • Base board (BASEB)
• Troubleshooting Guides: 1. Check STRGB for proper installation and correct as necessary. 2. Check CPUB for proper installation and correct as necessary. 3. Select [Service Mode] -> [State Confirmation] -> [Memory/Storage Adjustment] -> [Format] and perform the function. 4. Replace STRGB. 5. Replace CPUB. 6. Replace BASEB.

• Code: CD011
• Description: Storage out of specifications mounted
  A storage that falls outside the specifications is connected.
• Causes: Storage board (STRGB)
• Troubleshooting Guides: 1. Check the storage specifications. 2. Replace STRGB.

• Code: CD012
• Description: Mount error due to storage being unformatted
  • The storage is not logically formatted after the whole data in the storage has been deleted by overwriting. • The storage that has replaced an old one is not logically formatted.
• Causes: Storage board (STRGB)
• Troubleshooting Guides: 1. Select [Service Mode] -> [State Confirmation] -> [Memory/Storage Adjustment] -> [Format] -> [Logical Format] and perform the function. Then, rewrite the firmware. 2. Replace STRGB.

• Code: CD030
• Description: Storage management information reading error
  The machine fails to read administrative information data saved in the storage.
• Causes: Storage board (STRGB)
• Troubleshooting Guides: 1. Check STRGB for proper installation and correct as necessary. 2. Check CPUB for proper installation and correct as necessary. 3. Select [Service Mode] -> [State Confirmation] -> [Memory/Storage Adjustment] -> [Format] -> [Logical Format] and perform the function. 4. Select [Service Mode] -> [State Confirmation] -> [Memory/Storage Adjustment] -> [Format] -> [Physical Format] and perform the function. 5. Replace STRGB.

• Code: CD041 … CD046
• Description: CD041, CD042, CD043, CD044, CD045, CD046: Storage command execution error
  The error occurred inside the storage.
• Causes: Storage board (STRGB)
• Troubleshooting Guides: 1. Check the storage specifications. 2. Select [Service Mode] -> [State Confirmation] -> [Memory/Storage Adjustment] -> [Format] and perform the function. 3. Replace STRGB.

• Code: CD047 …
• Description: CD047, CD048, CD049, CD04A, CD04B: Storage SCSI library error
  The error occurred inside the storage.
• Causes: Storage board (STRGB)
• Troubleshooting Guides: 1. Check the storage specifications. 2. Select [Service Mode] -> [State Confirmation] -> [Memory/Storage Adjustment] -> [Format] and perform the function. 3. Replace STRGB.

• Code: CD050
• Description: Storage recovery timeout
  The storage fails to recover from the power save mode within the predetermined period of time.
• Causes: • Storage board (STRGB) • CPU board (CPUB) • Base board (BASEB)
• Troubleshooting Guides: 1. Check STRGB for proper installation and correct as necessary. 2. Check CPUB for proper installation and correct as necessary. 3. Reinstall STRGB. 4. Select [Service Mode] -> [State Confirmation] -> [Memory/Storage Adjustment] -> [Format] and perform the function. 5. Replace STRGB.

• Code: CD110
• Description: Wireless LAN destination initialization error
  When an initialization error occurred on the settings of the wireless LAN in the upgrade kit (UK-221).
• Causes:
• Troubleshooting Guides: 1. Check the UK-221 connector for proper connection and correct as necessary. 2. Rewrite the firmware. 3. Replace UK-221.

• Code: CD201, CD202, CD203
• Description: • CD201: File memory mounting error • CD202: Memory capacity discrepancy • CD203: Memory capacity discrepancy 2
  CD201: • The file memory is not mounted. • The file has any abnormality.
  CD202: • File memory capacity on the CPU board (CPUB) is not enough. • File memory capacity necessary for duplex printing is not enough.
  CD203: File memory capacity on the CPU board (CPUB) is not enough.
• Causes: • CPU board (CPUB) • Base board (BASEB)
• Troubleshooting Guides: 1. Check CPUB for proper installation and correct as necessary. 2. Replace CPUB. 3. Replace BASEB.

• Code: CD211, CD212
• Description: • CD211: PCI-SDRAM DMA operation failure • CD212: Compression/extraction timeout detection
  • CD211: Hardware related to the transfer of memory image of the CPU board (CPUB) fails to respond. • CD212: Hardware related to the BTC compression function of the CPU board (CPUB) fails to respond.
• Causes: • CPU board (CPUB) • Base board (BASEB)
• Troubleshooting Guides: 1. Check CPUB for proper installation and correct as necessary. 2. Replace CPUB. 3. Replace BASEB.

• Code: CD241, CD242
• Description: • CD241: Encryption ASIC setting error • CD242: Encryption ASIC mounting error
  • CD241: Initialization error of the encrypted ASIC is detected during the machine is starting. • CD242: The faulty of the installation of encrypted ASIC is detected during the machine is starting.
• Causes: • CPU board (CPUB) • Base board (BASEB)
• Troubleshooting Guides: 1. Check CPUB for proper installation and correct as necessary. 2. Check BASEB connector for proper connection and correct as necessary. 3. Replace CPUB. 4. Replace BASEB.

• Code: CD252
• Description: No relay circuit boards for IC-420 mounting at IC-420 mount setting
  EFI relay circuit boards (EFIRYB: VI-516) are not mounted when the IC-420 is set to mount setting at Service Mode.
• Causes: • CPU board (CPUB) • Base board (BASEB) • EFI relay board (EFIRYB: VI-516)
• Troubleshooting Guides: 1. If the IC-420 is not mounted, access [Service Mode] -> [System 2] -> [Image Controller Setting] and check to see if “Controller 0” is set for [Image Controller Setting]. 2. Check EFIRYB for proper connection and correct as necessary. 3. Check CPUB for proper installation and correct as necessary. 4. Replace EFIRYB. 5. Replace CPUB. 6. Replace BASEB.

• Code: CD261
• Description: USB hub board failure
  • When a failure is detected in USB hub board included in the local interface kit. • Non-standard USB device is connected.
• Causes: • CPU board (CPUB) • Base board (BASEB) • USB hub board (USBHB EK-608 or EK-609)
• Troubleshooting Guides: 1. Check the operation with another USB device. 2. Check USBHB for proper connection and correct as necessary. 3. Replace USBHB. 4. Replace CPUB. 5. Replace BASEB.

• Code: CD262
• Description: Extension network adapter installation error
  • When the 2nd network card settings is set to “Set” but the upgrade kit (UK-221) is not installed. • Upgrade Kit (UK-221) is faulty.
• Causes:
• Troubleshooting Guides: 1. Check the settings of [Service Mode] -> [Network Settings] -> [2nd Network Setting] -> [2nd network card settings]. 2. Check the UK-221 connector for proper connection and correct as necessary. 3. Rewrite the firmware. 4. Replace UK-221.

• Code: CD2D1
• Description: VLAN setting configuration error
  At start up of the MFP, the reception condition of VLAN setting activation is not satisfied.
• Causes: • Storage board (STRGB) • Backup board (ERB)
• Troubleshooting Guides: Procedure 1. Check if all VLAN setting reception conditions are satisfied. • If the IC card reader is connected, the LDD of AU-201S has been installed. • The software SW12 (bit1) has been set to ‘PKI unsupported’ (0x00). (PKI mode setting unavailable) • Service Mode -> [Billing Setting] -> [Management Function Choice] is set to ‘Unset’. • ‘TCP/IP” of Utility -> [Administrator] -> [Network] -> [TCP/IP Setting] -> [TCP/IP Setting1] is set to ‘ON”. • ‘Network I/F Configuration” of Utility -> [Administrator] -> [Network] -> [Network I/F Configuration] is set to other than ‘Wireless Only”.

• Code: CD3##
• Description: Nonvolatile data error
  Abnormality is detected by the abnormal check of each nonvolatile data.
• Causes:
• Troubleshooting Guides: 1. Touch [Recover Data] displayed at the lower right portion on the trouble screen. 2. A screen confirming whether to recover data appears. 3. Select [Yes]. 4. The screen will be shifted to the data restoration screen to perform data restoration.
  NOTE . When the restoration is performed in a short time, data restoration screen may not be displayed. 5. Check the message which indicates that the data restoration was successfully conducted. Turn OFF the main power switch and turn it ON again more than 10 seconds after.
  NOTE . In case it failed to restore data, return to the trouble code screen. NOTE . Nonvolatile data backup will be automatically performed every hour. Backup can also be performed manually with the following setting. [Service Mode] -> [Enhanced Security] -> [Memory Data Backup]

• Code: CD313
• Description: TPM key data error
  A fault occurs in the TPM key data.
• Causes:
• Troubleshooting Guides: 1. Touch [Recover Data] displayed at the lower right portion on the trouble screen. 2. A screen confirming whether to recover data appears. 3. Select [Yes]. 4. The screen will be shifted to the data restoration screen to perform data restoration.
  NOTE . When the restoration is performed in a short time, data restoration screen may not be displayed. 5. Check the message which indicates that the data restoration was successfully conducted. Turn OFF the main power switch and turn it ON again more than 10 seconds after.
  NOTE . In case it failed to restore data, return to the trouble code screen. 6. Replace the current TPMB with a new one. 7. Replace the current CPUB with a new one. 8. Replace the current BASEB with a new one.
  NOTE . Nonvolatile data backup will be automatically performed every hour. Backup can also be performed manually with the following setting. [Service Mode] -> [Enhanced Security] -> [Memory Data Backup]

• Code: CD38E
• Description: Nonvolatile data save error (SPI-Flash)
  The ‘ISW download flag’ saved in the SPI-Flash has an illegal value.
• Causes:
• Troubleshooting Guides: 1. Rewrite the firmware. 2. Turn OFF the main power switch and unplug the power cord. Connect the power cord after 15 sec. or more, and turn ON the main power switch.

• Code: CD390
• Description: Nonvolatile data checksum error
  C-D390 code is normally shown when the CPU board (CPUB) is replaced with a new one.
• Causes:
• Troubleshooting Guides: 1. Wait until “Recover Data” appears. (MFP will reboot maximum 2 times by itself, it may take 5 minutes.) Touch the “Recover Data” button and follow the instructions that appear on the control panel to restore (backup) data.

• Code: CD391
• Description: Nonvolatile data save error (Storage)
• Causes:
• Troubleshooting Guides: Contact the responsible people of KM before taking some countermeasures.

• Code: CD392
• Description: Nonvolatile data save error (EEPROM)
  The backup board (ERB) is replaced with a new one.
• Causes: Backup board (ERB)
• Troubleshooting Guides: 1. Replace the following components with new ones. Configure [New Release] in Service Mode before replacing the image transfer belt unit and the fusing unit. When the transfer roller has been replaced with a new one, perform [Counter clear]. • Developing unit/Y,M,C,K • Drum unit/Y,M,C,K • Toner cartridge/Y,M,C,K • Transfer belt unit • Fusing unit • Transfer roller • Feed roller, pick-up roller, separation roller (including options) 2. Turn OFF the main power switch and unplug the power cord. Connect the power cord after 15 sec. or more, and turn ON the main power switch. 3. Set the various setting values in the service mode again. 4. If the above actions do not solve the problem, contact KM.

• Code: CD3A0
• Description: Counter error
  The total counter values provided by the CPU board and the storage board are different.
• Causes: • Storage board (STRGB) • CPU board (CPUB)
• Troubleshooting Guides: 1. If this error occurs temporarily due to the use of the board removed from another machine, reinstall the original board. 2. Replace the current CPUB with a new one. 3. Replace the current STRGB with a new one.

• Code: CD3B1 … CD3B5
• Description: • CD3B1: DB server startup failure • CD3B3: DB access failure • CD3B4: No DB definition file • CD3B5: DB definition file error
  • CD3B1: When starting the MFP, PostgreSQL server startup has not been successful. • CD3B3: When starting the MFP, SQL DB access fails in PostgreSQL server startup processing. • CD3B4: When starting the MFP, SQL DB definition file does not exist in PostgreSQL server startup processing. • CD3B5: When starting the MFP, there is an error in SQL DB definition file in PostgreSQL server startup processing.
• Causes: CPU board (CPUB)
• Troubleshooting Guides: 1. Reboot the machine. 2. Check CPUB for proper installation and correct as necessary. 3. Rewrite the firmware. 4. Replace CPUB.

• Code: CD3C0
• Description: New board detection
  The board is replaced with a new one.
• Causes:
• Troubleshooting Guides: 1. Wait until “Recover Data” appears. (MFP will reboot maximum 2 times by itself, it may take 5 minutes.) Touch the “Recover Data” button and follow the instructions that appear on the control panel to restore (backup) data.

• Code: CD401 … CD413
• Description: • CD401: NACK command incorrect • CD402: ACK command incorrect • CD403: Checksum error • CD404: Receiving packet incorrect • CD405: Receiving packet analysis error • CD406: ACK receiving timeout • CD407: Retransmission timeout • CD411: Touch panel board error • CD412: Touch panel type mismatch • CD413: Electrostatic touch panel operation mode error
  When abnormality is found in the communication of controller.
• Causes: • Control panel • CPU board (CPUB) • Base board (BASEB)
• Troubleshooting Guides: 1. Check whether there is a strong electromagnetic noise source near the main body. 2. Check the connector between the control panel-BASEB CN7 for proper connection and correct as necessary. 3. Check CPUB for proper installation and correct as necessary. 4. Replace CPUB. 5. Replace BASEB.

• Code: CD601, CD602, CD603
• Description: Trouble related to security
• Causes:
• Troubleshooting Guides: 1. Turn OFF the main power switch, wait for 10 sec. or more, and turn ON the main power switch. If the above actions do not solve the problem, contact KM.

• Code: CD701, CD702, CD703
• Description: • CD701: Mechanical controller flash ROM writing error • CD702: Mechanical controller flash ROM device error • CD703: FW download communication fault
  CD701: A mechanical controller flash ROM writing sequence is interrupted in its mid-operation due to, for example, power being shut off.
  CD702: An erase error or other device fault occurs during mechanical controller flash ROM writing.
  CD703: Irregular data is received during FW downloading. • Places are changed in the order of write completion pulses. • A write completion pulse is received for a memory for which binary writing is not permitted. • Final checksum mismatch in FW download • Two-minute timeout (no response from CTL, the number of transfer data items less than the specified)
• Causes: • CPU board (CPUB) • Base board (BASEB)
• Troubleshooting Guides: 1. Turn OFF the main power switch and unplug the power cord. Connect the power cord after 15 sec. or more, and turn ON the main power switch. 2. Rewrite the firmware. 3. Replace CPUB. 4. Replace BASEB.

• Code: CD704
• Description: Finisher Flash ROM device error (When FS-533, FS-536, FS-536SD, or JS-506 is installed)
  An erase error or other device fault occurs during the finisher flash ROM writing.
• Causes: <When FS-533, FS-536, or FS-536SD is installed> • FS control board (FSCB)
  <When JS-506 is installed> • JS control board (JSCB)
• Troubleshooting Guides: Procedure When FS-533, FS-536, or FS-536SD is installed 1. Turn OFF the main power switch and unplug the power cord. Connect the power cord after 15 sec. or more, and turn ON the main power switch. 2. Rewrite the firmware. 3. Replace FSCB. (FS-533 / FS-536/FS-536SD)
  When JS-506 is installed 1. Turn OFF the main power switch and unplug the power cord. Connect the power cord after 15 sec. or more, and turn ON the main power switch. 2. Rewrite the firmware. 3. Replace JSCB.

• Code: CDF50, CDF70, CDFA0
• Description: • CDF50: ASIC image version failure • CDF70: ASIC image access failure • CDFA0: ASIC image error
  Communication error is detected between the CPU board (CPUB) and the CCD board (CCDB).
• Causes: • CCD unit • CPU board (CPUB) • Base board (BASEB)
• Troubleshooting Guides: 1. Check the connector between BASEB CN6-CCDB CN3 for proper connection and correct as necessary. 2. Check CPUB for proper installation and correct as necessary. 3. Rewrite the firmware. 4. Replace the CCD unit. 5. Replace CPUB. 6. Replace BASEB.

• Code: CDF51, CDF71, CDFA1
• Description: • CDF51: ASIC image version failure (back side) (When DF-714 is installed) • CDF71: ASIC image access failure (back side) (When DF-714 is installed) • CDFA1: ASIC image error (back side) (When DF-714 is installed)
  Communication error is detected between the CPU board (CPUB) and the CIS module (CIS).
• Causes: • CIS module (CIS) • CPU board (CPUB) • Base board (BASEB)
• Troubleshooting Guides: 1. Check the connector between CIS J221-BASEB CN5 for proper connection and correct as necessary. 2. Check CPUB for proper installation and correct as necessary. 3. Rewrite the firmware. 4. Replace CIS. 5. Replace CPUB. 6. Replace BASEB.

• Code: CE001, CE009
• Description: • CE001: Abnormal message queue • CE009: Memory resource shortage error
  CPU board (CPUB) is faulty.
• Causes: • CPU board (CPUB) • Base board (BASEB)
• Troubleshooting Guides: 1. Check the connectors on BASEB for proper connection and correct as necessary. 2. Replace CPUB. 3. Replace BASEB.

• Code: CE002
• Description: Message and method parameter failure
  CPU board (CPUB) is faulty.
• Causes: • Storage board (STRGB) • CPU board (CPUB) • Base board (BASEB)
• Troubleshooting Guides: 1. Turn OFF the main power switch and turn it ON again, and conduct the following setting. [Service Mode] -> [System 1] -> [Initialization] -> [Clear All Data]. 2. Select [Service Mode] -> [State Confirmation] -> [Memory/Storage Adjustment] -> [Format] and perform the function. 3. Replace STRGB. 4. Replace CPUB. 5. Replace BASEB.

• Code: CE003 … CE007
• Description: • CE003: Task error • CE004: Event error • CE005: Memory access error • CE006: Header access error • CE007: DIMM initialize error
  CPU board (CPUB) is faulty.
• Causes: • CPU board (CPUB) • Base board (BASEB)
• Troubleshooting Guides: 1. Check the connectors on BASEB for proper connection and correct as necessary. 2. Replace CPUB. 3. Replace BASEB.

• Code: CE013
• Description: Virus scan engine startup failure (8 GB storage)
  When the virus scan settings are effective, change from storage board (STRGB) to microSD (8GB).
• Causes: microSD
• Troubleshooting Guides: 1. Replace the microSD (16GB) or STRGB. 2. Reboot the machine.

• Code: CE014
• Description: Virus scan engine startup failure (storage error)
  The file or data that is necessary to start the virus scan has been lost.
• Causes: Storage board (STRGB)
• Troubleshooting Guides: 1. Reboot the machine. (MFP will reboot maximum 2 times by itself.) 2. Replace STRGB.

• Code: CE101
• Description: Browser finish detected
  • The browser is automatically recovered (restarted) after the main body detected that the browser (separate process) has stopped with fault. • When the “Malfunction finish is detected over predetermined number of times” or “the browser task process is except in idle (printing, etc)”.
• Causes: • CPU board (CPUB) • Base board (BASEB)
• Troubleshooting Guides: 1. Check the connectors on BASEB for proper connection and correct as necessary. 2. Replace CPUB. 3. Replace BASEB.

• Code: CE201
• Description: Transmission operation log storage fault
  When the transmission log storage failed, it repeats retrial until transmission operation log is stored. The trouble is detected when the retrial failed for predetermined number of times.
• Causes: • CPU board (CPUB) • Base board (BASEB)
• Troubleshooting Guides: 1. Check the connectors on BASEB for proper connection and correct as necessary. 2. Replace CPUB. 3. Replace BASEB.

• Code: CE202
• Description: PDL interpreter error
  An error inside the CPU board (CPUB) is detected during converting the PDL information.
• Causes: • CPU board (CPUB) • Base board (BASEB)
• Troubleshooting Guides: 1. Turn OFF the main power switch and unplug the power cord. Connect the power cord after 15 sec. or more, and turn ON the main power switch. 2. Select [Service Mode] -> [State Confirmation] -> [Memory/Storage Adjustment] -> [Format] -> [Logical Format] and perform the function. 3. Select [System 1] -> [Initialization] -> [Clear All Data] and perform the function. 4. Replace CPUB. 5. Replace BASEB.

• Code: CE203
• Description: Unrecoverable error
  An error does not recover even after an auto recovery.
• Causes: • CPU board (CPUB) • Base board (BASEB)
• Troubleshooting Guides: 1. Turn OFF the main power switch and unplug the power cord. Connect the power cord after 15 sec. or more, and turn ON the main power switch. 2. Select [Service Mode] -> [State Confirmation] -> [Memory/Storage Adjustment] -> [Format] -> [Logical Format] and perform the function. 3. Select [System 1] -> [Initialization] -> [Clear All Data] and perform the function. 4. Update the firmware. 5. Perform the self-diagnostic function. 6. Replace CPUB. 7. Replace BASEB.

• Code: CE301 … CE305
• Description: • CE301: Referring incorrect memory • CE302: Incorrect command • CE303: Finished due to error inside Qt library • CE304: Finished due to error outside Qt library • CE305: Program forced to stop
  Error occurred with the process inside the MFP controller.
• Causes: • CPU board (CPUB) • Base board (BASEB)
• Troubleshooting Guides: 1. Check the connectors on BASEB for proper connection and correct as necessary. 2. Replace CPUB. 3. Replace BASEB. 4. Acquire the debug logs in [Service Mode] -> [Debug Settings] and analyze them.

• Code: CE401
• Description: Shared memory connection timeout
  A CPU communication error is detected when power save is turned ON.
• Causes: • CPU board (CPUB) • Base board (BASEB)
• Troubleshooting Guides: 1. Turn OFF the main power switch and unplug the power cord. Connect the power cord after 15 sec. or more, and turn ON the main power switch. 2. Check CPUB for proper installation and correct as necessary. 3. Rewrite the firmware. 4. Replace CPUB. 5. Replace BASEB.

• Code: CED01
• Description: The authentication application information does not exist in the storage in the enhanced server authentication state.
  With “Enhanced Server Authentication” set, no authentication application registration information is found in the storage.
• Causes: • Storage board (STRGB) • CPU board (CPUB) • Base board (BASEB)
• Troubleshooting Guides: 1. Turn OFF and ON the main power switch. 2. Check STRGB for proper installation and correct as necessary. 3. Check CPUB for proper installation and correct as necessary. 4. Select [Service Mode] -> [State Confirmation] -> [Memory/Storage Adjustment] -> [Format] -> [Logical Format] and perform the function. 5. Replace STRGB. 6. If the above actions do not solve the problem, contact KM.

• Code: CEEE1, CEEE3
• Description: • CEEE1: CPU board (MSC) malfunction • CEEE3: Base board (ENG) malfunction
  • CEEE1: CPU board is faulty. • CEEE3: Base board is faulty.
• Causes: • CPU board (CPUB) • Base board (BASEB)
• Troubleshooting Guides: 1. Check the connectors on BASEB for proper connection and correct as necessary. 2. Replace CPUB. 3. Replace BASEB.

• Code: CEEE2
• Description: Scanner section malfunction
  A scanner part is faulty.
• Causes: • LED exposure unit • CCD unit • Scanner drive board (SCDB)
• Troubleshooting Guides: 1. Correct the connector connection between CCDB and SCDB if faulty. 2. Replace SCDB. 3. Replace the CCD unit.

• Code: CFA1#
• Description: CFA1#: Abort code
• Causes: CFA14, CFA17 • CPU board (CPUB) • Storage board (STRGB)
• Troubleshooting Guides: 1. Turn OFF the main power switch and unplug the power cord. Connect the power cord after 15 sec. or more, and turn ON the main power switch. 2. Check STRGB for proper installation and correct as necessary. 3. Check CPUB for proper installation and correct as necessary. 4. Rewrite the firmware. 5. Execute [Service Mode] -> [State Confirmation] -> [Memory/Storage Adjustment] -> [Memory Check] -> [Rough Check], and check that no abnormalities. When ‘NG’ is displayed, replace the appropriate memory or PWB. • WORK0: CPU board (CPUB) LPDDR4 main memory ChA • WORK1: CPU board (CPUB) LPDDR4 main memory ChB 6. Execute [Service Mode] -> [State Confirmation] -> [Memory/Storage Adjustment] -> [Storage R/W Check], and check that no abnormalities. When ‘NG’ is displayed, replace STRGB. 7. Replace CPUB.

• Code: CFB0# … CFB2#
• Description: CFB0# – CFB2#: Abort code
• Causes: CPU board (CPUB)
• Troubleshooting Guides: 1. Turn OFF the main power switch and unplug the power cord. Connect the power cord after 15 sec. or more, and turn ON the main power switch. 2. Check CPUB for proper installation and correct as necessary. 3. Rewrite the firmware. 4. Execute [Service Mode] -> [State Confirmation] -> [Memory/Storage Adjustment] -> [Memory Check] -> [Rough Check], and check that no abnormalities. When ‘NG’ is displayed, replace the appropriate memory or PWB. • WORK0: CPU board (CPUB) LPDDR4 main memory ChA • WORK1: CPU board (CPUB) LPDDR4 main memory ChB 5. Replace CPUB.

• Code: CFB3#
• Description: CFB3#: Abort code
• Causes: CFB30 – CFB37 CPU board (CPUB)
  CFB38 – CFB3F EFI relay board (EFIRYB: VI-516)
• Troubleshooting Guides: 1. Turn OFF the main power switch and unplug the power cord. Connect the power cord after 15 sec. or more, and turn ON the main power switch. 2. Check the connectors of EFIRYB for proper connection and correct or replace as necessary. 3. Check CPUB for proper installation and correct as necessary. 4. Rewrite the firmware. 5. Execute [Service Mode] -> [State Confirmation] -> [Memory/Storage Adjustment] -> [Memory Check] -> [Rough Check], and check that no abnormalities. When ‘NG’ is displayed, replace the appropriate memory or PWB. • WORK0: CPU board (CPUB) LPDDR4 main memory ChA • WORK1: CPU board (CPUB) LPDDR4 main memory ChB 6. Replace EFIRYB. 7. Replace CPUB.

• Code: CFB4#
• Description: CFB4#: Abort code
• Causes: EFI relay board (EFIRYB: VI-516)
• Troubleshooting Guides: 1. Turn OFF the main power switch and unplug the power cord. Connect the power cord after 15 sec. or more, and turn ON the main power switch. 2. Check the connectors of EFIRYB for proper connection and correct or replace as necessary. 3. Replace EFIRYB.

• Code: CFB5#
• Description: CFB5#: Abort code
• Causes: CFB50 – CFB57 EFI relay board (EFIRYB: VI-516)
  CFB58 – CFB5F Memory board (MEMB: UK-115)
• Troubleshooting Guides: 1. Turn OFF the main power switch and unplug the power cord. Connect the power cord after 15 sec. or more, and turn ON the main power switch. 2. Check the connectors of EFIRYB for proper connection and correct or replace as necessary. 3. Check the connectors of MEMB for proper connection and correct or replace as necessary. 4. Execute [Service Mode] -> [State Confirmation] -> [Memory/Storage Adjustment] -> [Memory Check] -> [Rough Check], and check that no abnormalities. When ‘NG’ is displayed, replace the appropriate memory or PWB. • FILE0: Memory board (MEMB: UK-115) A800 image memory ChA • FILE1: Memory board (MEMB: UK-115) A800 image memory ChB 5. Replace EFIRYB. 6. Replace MEMB.

• Code: CFB6# … CFB8#
• Description: CFB6# – CFB8#: Abort code
• Causes: Memory board (MEMB: UK-115)
• Troubleshooting Guides: 1. Turn OFF the main power switch and unplug the power cord. Connect the power cord after 15 sec. or more, and turn ON the main power switch. 2. Check the connectors of MEMB for proper connection and correct or replace as necessary. 3. Execute [Service Mode] -> [State Confirmation] -> [Memory/Storage Adjustment] -> [Memory Check] -> [Rough Check], and check that no abnormalities. When ‘NG’ is displayed, replace the appropriate memory or PWB. • FILE0: Memory board (MEMB: UK-115) A800 image memory ChA • FILE1: Memory board (MEMB: UK-115) A800 image memory ChB 4. Replace MEMB.

• Code: CFBB# … CFBC#
• Description: CFBB# – CFBC#: Abort code
• Causes: EFI relay board (EFIRYB: VI-516)
• Troubleshooting Guides: 1. Turn OFF the main power switch and unplug the power cord. Connect the power cord after 15 sec. or more, and turn ON the main power switch. 2. Check the connectors of EFIRYB for proper connection and correct or replace as necessary.

• Code: CFBD# … CFBE#
• Description: CFBD# – CFBE#: Abort code
• Causes: CFBD3, CFBD6, CFBD9, CFBDC, CFBDF, CFBE2, CFBE5 – CFBEF CPU board (CPUB)
  CFBD0, CFBD1, CFBD2, CFBD5, CFBD8, CFBDB, CFBDE, CFBE1, CFBE4 Memory board (MEMB: UK-115)
  CFBD4, CFBD7, CFBDA, CFBDD, CFBE0, CFBE3 EFI relay board (EFIRYB: VI-516)
• Troubleshooting Guides: 1. Turn OFF the main power switch and unplug the power cord. Connect the power cord after 15 sec. or more, and turn ON the main power switch. 2. Check the connectors of MEMB for proper connection and correct or replace as necessary. 3. Check the connectors of EFIRYB for proper connection and correct or replace as necessary. 4. Check CPUB for proper installation and correct as necessary. 5. Rewrite the firmware. 6. Execute [Service Mode] -> [State Confirmation] -> [Memory/Storage Adjustment] -> [Memory Check] -> [Rough Check], and check that no abnormalities. When ‘NG’ is displayed, replace the appropriate memory or PWB. • WORK0: CPU board (CPUB) LPDDR4 main memory ChA • WORK1: CPU board (CPUB) LPDDR4 main memory ChB • FILE0: Memory board (MEMB: UK-115) A800 image memory ChA • FILE1: Memory board (MEMB: UK-115) A800 image memory ChB 7. Replace MEMB. 8. Replace EFIRYB. 9. Replace CPUB.

• Code: CFBF# … CFC3#
• Description: CFBF# – CFC3#: Abort code
• Causes: CPU board (CPUB)
• Troubleshooting Guides: 1. Turn OFF the main power switch and unplug the power cord. Connect the power cord after 15 sec. or more, and turn ON the main power switch. 2. Check CPUB for proper installation and correct as necessary. 3. Rewrite the firmware. 4. Execute [Service Mode] -> [State Confirmation] -> [Memory/Storage Adjustment] -> [Memory Check] -> [Rough Check], and check that no abnormalities. When ‘NG’ is displayed, replace the appropriate memory or PWB. • WORK0: CPU board (CPUB) LPDDR4 main memory ChA • WORK1: CPU board (CPUB) LPDDR4 main memory ChB 5. Replace CPUB.

• Code: CFC4#
• Description: CFC4#: Abort code
• Causes: CFC40 – CFC47 CPU board (CPUB)
  CFC48 – CFC4F EFI relay board (EFIRYB: VI-516)
• Troubleshooting Guides: 1. Turn OFF the main power switch and unplug the power cord. Connect the power cord after 15 sec. or more, and turn ON the main power switch. 2. Check the connectors of EFIRYB for proper connection and correct or replace as necessary. 3. Check CPUB for proper installation and correct as necessary. 4. Rewrite the firmware. 5. Execute [Service Mode] -> [State Confirmation] -> [Memory/Storage Adjustment] -> [Memory Check] -> [Rough Check], and check that no abnormalities. When ‘NG’ is displayed, replace the appropriate memory or PWB. • WORK0: CPU board (CPUB) LPDDR4 main memory ChA • WORK1: CPU board (CPUB) LPDDR4 main memory ChB 6. Replace EFIRYB. 7. Replace CPUB.

• Code: CFC5# … CFC6#
• Description: CFC5# – CFC6#: Abort code
• Causes: EFI relay board (EFIRYB: VI-516)
• Troubleshooting Guides: 1. Turn OFF the main power switch and unplug the power cord. Connect the power cord after 15 sec. or more, and turn ON the main power switch. 2. Check the connectors of EFIRYB for proper connection and correct or replace as necessary. 3. Replace EFIRYB.

• Code: CFC7#
• Description: CFC7#: Abort code
• Causes: CFC70 – CFC76 EFI relay board (EFIRYB: VI-516)
  CFC77 – CFC7F Memory board (MEMB: UK-115)
• Troubleshooting Guides: 1. Turn OFF the main power switch and unplug the power cord. Connect the power cord after 15 sec. or more, and turn ON the main power switch. 2. Check the connectors of EFIRYB for proper connection and correct or replace as necessary. 3. Check the connectors of MEMB for proper connection and correct or replace as necessary. 4. Execute [Service Mode] -> [State Confirmation] -> [Memory/Storage Adjustment] -> [Memory Check] -> [Rough Check], and check that no abnormalities. When ‘NG’ is displayed, replace the appropriate memory or PWB. • FILE0: Memory board (MEMB: UK-115) A800 image memory ChA • FILE1: Memory board (MEMB: UK-115) A800 image memory ChB 5. Replace EFIRYB. 6. Replace MEMB.

• Code: CFC8# … CFCE#
• Description: CFC8# – CFCE#: Abort code
• Causes: Memory board (MEMB: UK-115)
• Troubleshooting Guides: 1. Turn OFF the main power switch and unplug the power cord. Connect the power cord after 15 sec. or more, and turn ON the main power switch. 2. Check the connectors of MEMB for proper connection and correct or replace as necessary. 3. Execute [Service Mode] -> [State Confirmation] -> [Memory/Storage Adjustment] -> [Memory Check] -> [Rough Check], and check that no abnormalities. When ‘NG’ is displayed, replace the appropriate memory or PWB. • FILE0: Memory board (MEMB: UK-115) A800 image memory ChA • FILE1: Memory board (MEMB: UK-115) A800 image memory ChB 4. Replace MEMB.

• Code: CFD1# … CFD3#
• Description: CFD1# – CFD3#: Abort code
• Causes: EFI relay board (EFIRYB: VI-516)
• Troubleshooting Guides: 1. Turn OFF the main power switch and unplug the power cord. Connect the power cord after 15 sec. or more, and turn ON the main power switch. 2. Check the connectors of EFIRYB for proper connection and correct or replace as necessary. 3. Replace EFIRYB.

• Code: CFD4# … CFD5#
• Description: CFD4# – CFD5#: Abort code
• Causes: CFD40 – CFD46 EFI relay board (EFIRYB: VI-516)
  CFD47 – CFD5F Memory board (MEMB: UK-115)
• Troubleshooting Guides: 1. Turn OFF the main power switch and unplug the power cord. Connect the power cord after 15 sec. or more, and turn ON the main power switch. 2. Check the connectors of EFIRYB for proper connection and correct or replace as necessary. 3. Check the connectors of MEMB for proper connection and correct or replace as necessary. 4. Execute [Service Mode] -> [State Confirmation] -> [Memory/Storage Adjustment] -> [Memory Check] -> [Rough Check], and check that no abnormalities. When ‘NG’ is displayed, replace the appropriate memory or PWB. • FILE0: Memory board (MEMB: UK-115) A800 image memory ChA • FILE1: Memory board (MEMB: UK-115) A800 image memory ChB 5. Replace EFIRYB. 6. Replace MEMB.

• Code: CFD6#
• Description: CFD6#: Abort code
• Causes: CFD63 – CFD6F CPU board (CPUB)
  CFD60 – CFD62 Memory board (MEMB: UK-115)
• Troubleshooting Guides: 1. Turn OFF the main power switch and unplug the power cord. Connect the power cord after 15 sec. or more, and turn ON the main power switch. 2. Check the connectors of MEMB for proper connection and correct or replace as necessary. 3. Check CPUB for proper installation and correct as necessary. 4. Rewrite the firmware. 5. Execute [Service Mode] -> [State Confirmation] -> [Memory/Storage Adjustment] -> [Memory Check] -> [Rough Check], and check that no abnormalities. When ‘NG’ is displayed, replace the appropriate memory or PWB. • WORK0: CPU board (CPUB) LPDDR4 main memory ChA • WORK1: CPU board (CPUB) LPDDR4 main memory ChB • FILE0: Memory board (MEMB: UK-115) A800 image memory ChA • FILE1: Memory board (MEMB: UK-115) A800 image memory ChB 6. Replace MEMB. 7. Replace CPUB.

• Code: CFD7# … CFD9#
• Description: CFD7# – CFD9#: Abort code
• Causes: CPU board (CPUB)
• Troubleshooting Guides: 1. Turn OFF the main power switch and unplug the power cord. Connect the power cord after 15 sec. or more, and turn ON the main power switch. 2. Check CPUB for proper installation and correct as necessary. 3. Rewrite the firmware. 4. Execute [Service Mode] -> [State Confirmation] -> [Memory/Storage Adjustment] -> [Memory Check] -> [Rough Check], and check that no abnormalities. When ‘NG’ is displayed, replace the appropriate memory or PWB. • WORK0: CPU board (CPUB) LPDDR4 main memory ChA • WORK1: CPU board (CPUB) LPDDR4 main memory ChB 5. Replace CPUB.

• Code: CFDA# … CFDB#
• Description: CFDA# – CFDB#: Abort code
• Causes: EFI relay board (EFIRYB: VI-516)
• Troubleshooting Guides: 1. Turn OFF the main power switch and unplug the power cord. Connect the power cord after 15 sec. or more, and turn ON the main power switch. 2. Check the connectors of EFIRYB for proper connection and correct or replace as necessary. 3. Replace EFIRYB.

• Code: CFDC# … CFDF#
• Description: CFDC# – CFDF#: Abort code
• Causes: Memory board (MEMB: UK-115)
• Troubleshooting Guides: 1. Turn OFF the main power switch and unplug the power cord. Connect the power cord after 15 sec. or more, and turn ON the main power switch. 2. Check the connectors of MEMB for proper connection and correct or replace as necessary. 3. Rewrite the firmware. 4. Execute [Service Mode] -> [State Confirmation] -> [Memory/Storage Adjustment] -> [Memory Check] -> [Rough Check], and check that no abnormalities. When ‘NG’ is displayed, replace the appropriate memory or PWB. • FILE0: Memory board (MEMB: UK-115) A800 image memory ChA • FILE1: Memory board (MEMB: UK-115) A800 image memory ChB 5. Replace MEMB.

• Code: CFE1# … CFE2#
• Description: CFE1# – CFE2#: Abort code
• Causes: EFI relay board (EFIRYB: VI-516)
• Troubleshooting Guides: 1. Turn OFF the main power switch and unplug the power cord. Connect the power cord after 15 sec. or more, and turn ON the main power switch. 2. Check the connectors of EFIRYB for proper connection and correct or replace as necessary. 3. Replace EFIRYB.

• Code: CFE3#
• Description: CFE3#: Abort code
• Causes: CFE30 – CFE37 EFI relay board (EFIRYB: VI-516)
  CFE38, CFE39, CFE3A Memory board (MEMB: UK-115)
  CFE3B – CFE3F CPU board (CPUB)
• Troubleshooting Guides: 1. Turn OFF the main power switch and unplug the power cord. Connect the power cord after 15 sec. or more, and turn ON the main power switch. 2. Check the connectors of MEMB for proper connection and correct or replace as necessary. 3. Check the connectors of EFIRYB for proper connection and correct or replace as necessary. 4. Check CPUB for proper installation and correct as necessary. 5. Rewrite the firmware. 6. Execute [Service Mode] -> [State Confirmation] -> [Memory/Storage Adjustment] -> [Memory Check] -> [Rough Check], and check that no abnormalities. When ‘NG’ is displayed, replace the appropriate memory or PWB. • WORK0: CPU board (CPUB) LPDDR4 main memory ChA • WORK1: CPU board (CPUB) LPDDR4 main memory ChB • FILE0: Memory board (MEMB: UK-115) A800 image memory ChA • FILE1: Memory board (MEMB: UK-115) A800 image memory ChB 7. Replace MEMB. 8. Replace EFIRYB. 9. Replace CPUB.

• Code: CFE4# … CFE6#
• Description: CFE4# – CFE6#: Abort code
• Causes: CPU board (CPUB)
• Troubleshooting Guides: 1. Turn OFF the main power switch and unplug the power cord. Connect the power cord after 15 sec. or more, and turn ON the main power switch. 2. Check CPUB for proper installation and correct as necessary. 3. Rewrite the firmware. 4. Execute [Service Mode] -> [State Confirmation] -> [Memory/Storage Adjustment] -> [Memory Check] -> [Rough Check], and check that no abnormalities. When ‘NG’ is displayed, replace the appropriate memory or PWB. • WORK0: CPU board (CPUB) LPDDR4 main memory ChA • WORK1: CPU board (CPUB) LPDDR4 main memory ChB 5. Replace CPUB.

• Code: CFE7#
• Description: CFE7#: Abort code
• Causes: CFE70 – CFE72 CPU board (CPUB)
  CFE73 – CFE7F EFI relay board (EFIRYB: VI-516)
• Troubleshooting Guides: 1. Turn OFF the main power switch and unplug the power cord. Connect the power cord after 15 sec. or more, and turn ON the main power switch. 2. Check the connectors of EFIRYB for proper connection and correct or replace as necessary. 3. Check CPUB for proper installation and correct as necessary. 4. Rewrite the firmware. 5. Execute [Service Mode] -> [State Confirmation] -> [Memory/Storage Adjustment] -> [Memory Check] -> [Rough Check], and check that no abnormalities. When ‘NG’ is displayed, replace the appropriate memory or PWB. • WORK0: CPU board (CPUB) LPDDR4 main memory ChA • WORK1: CPU board (CPUB) LPDDR4 main memory ChB 6. Replace EFIRYB. 7. Replace CPUB.

• Code: CFE8#
• Description: CFE8#: Abort code
• Causes: EFI relay board (EFIRYB: VI-516)
• Troubleshooting Guides: 1. Turn OFF the main power switch and unplug the power cord. Connect the power cord after 15 sec. or more, and turn ON the main power switch. 2. Check the connectors of EFIRYB for proper connection and correct or replace as necessary. 3. Replace EFIRYB.

• Code: CFE9#
• Description: CFE9#: Abort code
• Causes: CFE90 – CFE92 EFI relay board (EFIRYB: VI-516)
  CFE93 – CFE9F Memory board (MEMB: UK-115)
• Troubleshooting Guides: 1. Turn OFF the main power switch and unplug the power cord. Connect the power cord after 15 sec. or more, and turn ON the main power switch. 2. Check the connectors of EFIRYB for proper connection and correct or replace as necessary. 3. Check the connectors of MEMB for proper connection and correct or replace as necessary. 4. Execute [Service Mode] -> [State Confirmation] -> [Memory/Storage Adjustment] -> [Memory Check] -> [Rough Check], and check that no abnormalities. When ‘NG’ is displayed, replace the appropriate memory or PWB. • FILE0: Memory board (MEMB: UK-115) A800 image memory ChA • FILE1: Memory board (MEMB: UK-115) A800 image memory ChB 5. Replace EFIRYB. 6. Replace MEMB.

• Code: CFEA# … CFEC#
• Description: CFEA# – CFEC#: Abort code
• Causes: Memory board (MEMB: UK-115)
• Troubleshooting Guides: 1. Turn OFF the main power switch and unplug the power cord. Connect the power cord after 15 sec. or more, and turn ON the main power switch. 2. Check the connectors of MEMB for proper connection and correct or replace as necessary. 3. Execute [Service Mode] -> [State Confirmation] -> [Memory/Storage Adjustment] -> [Memory Check] -> [Rough Check], and check that no abnormalities. When ‘NG’ is displayed, replace the appropriate memory or PWB. • FILE0: Memory board (MEMB: UK-115) A800 image memory ChA • FILE1: Memory board (MEMB: UK-115) A800 image memory ChB 4. Replace MEMB.

• Code: CFEE# … CFEF#
• Description: CFEE# – CFEF#: Abort code
• Causes: EFI relay board (EFIRYB: VI-516)
• Troubleshooting Guides: 1. Turn OFF the main power switch and unplug the power cord. Connect the power cord after 15 sec. or more, and turn ON the main power switch. 2. Check the connectors of EFIRYB for proper connection and correct or replace as necessary. 3. Replace EFIRYB.

• Code: CFF0#
• Description: CFF0#: Abort code
• Causes: CFF00 – CFF0A EFI relay board (EFIRYB: VI-516)
  CFF0B, CFF0C, CFF0D Memory board (MEMB: UK-115)
  CFF0E, CFF0F CPU board (CPUB)
• Troubleshooting Guides: 1. Turn OFF the main power switch and unplug the power cord. Connect the power cord after 15 sec. or more, and turn ON the main power switch. 2. Check the connectors of MEMB for proper connection and correct or replace as necessary. 3. Check the connectors of EFIRYB for proper connection and correct or replace as necessary. 4. Check CPUB for proper installation and correct as necessary. 5. Rewrite the firmware. 6. Execute [Service Mode] -> [State Confirmation] -> [Memory/Storage Adjustment] -> [Memory Check] -> [Rough Check], and check that no abnormalities. When ‘NG’ is displayed, replace the appropriate memory or PWB. • WORK0: CPU board (CPUB) LPDDR4 main memory ChA • WORK1: CPU board (CPUB) LPDDR4 main memory ChB • FILE0: Memory board (MEMB: UK-115) A800 image memory ChA • FILE1: Memory board (MEMB: UK-115) A800 image memory ChB 7. Replace MEMB. 8. Replace EFIRYB. 9. Replace CPUB.

• Code: CFF1# … CFF3#
• Description: CFF1# – CFF3#: Abort code
• Causes: CPU board (CPUB)
• Troubleshooting Guides: 1. Turn OFF the main power switch and unplug the power cord. Connect the power cord after 15 sec. or more, and turn ON the main power switch. 2. Check CPUB for proper installation and correct as necessary. 3. Rewrite the firmware. 4. Execute [Service Mode] -> [State Confirmation] -> [Memory/Storage Adjustment] -> [Memory Check] -> [Rough Check], and check that no abnormalities. When ‘NG’ is displayed, replace the appropriate memory or PWB. • WORK0: CPU board (CPUB) LPDDR4 main memory ChA • WORK1: CPU board (CPUB) LPDDR4 main memory ChB 5. Replace CPUB.

• Code: CFF4#
• Description: CFF4#: Abort code
• Causes: CFF40 – CFF45 CPU board (CPUB)
  CFF46 – CFF4F EFI relay board (EFIRYB: VI-516)
• Troubleshooting Guides: 1. Turn OFF the main power switch and unplug the power cord. Connect the power cord after 15 sec. or more, and turn ON the main power switch. 2. Check the connectors of EFIRYB for proper connection and correct or replace as necessary. 3. Check CPUB for proper installation and correct as necessary. 4. Rewrite the firmware. 5. Execute [Service Mode] -> [State Confirmation] -> [Memory/Storage Adjustment] -> [Memory Check] -> [Rough Check], and check that no abnormalities. When ‘NG’ is displayed, replace the appropriate memory or PWB. • WORK0: CPU board (CPUB) LPDDR4 main memory ChA • WORK1: CPU board (CPUB) LPDDR4 main memory ChB 6. Replace EFIRYB. 7. Replace CPUB.

• Code: CFF5#
• Description: CFF5#: Abort code
• Causes: EFI relay board (EFIRYB: VI-516)
• Troubleshooting Guides: 1. Turn OFF the main power switch and unplug the power cord. Connect the power cord after 15 sec. or more, and turn ON the main power switch. 2. Check the connectors of EFIRYB for proper connection and correct or replace as necessary. 3. Replace EFIRYB.

• Code: CFF6#
• Description: CFF6#: Abort code
• Causes: CFF60 – CFF65 EFI relay board (EFIRYB: VI-516)
  CFF66 – CFF6F Memory board (MEMB: UK-115)
• Troubleshooting Guides: 1. Turn OFF the main power switch and unplug the power cord. Connect the power cord after 15 sec. or more, and turn ON the main power switch. 2. Check the connectors of EFIRYB for proper connection and correct or replace as necessary. 3. Check the connectors of MEMB for proper connection and correct or replace as necessary. 4. Execute [Service Mode] -> [State Confirmation] -> [Memory/Storage Adjustment] -> [Memory Check] -> [Rough Check], and check that no abnormalities. When ‘NG’ is displayed, replace the appropriate memory or PWB. • FILE0: Memory board (MEMB: UK-115) A800 image memory ChA • FILE1: Memory board (MEMB: UK-115) A800 image memory ChB 5. Replace EFIRYB. 6. Replace MEMB.

• Code: CFF7# … CFF9#
• Description: CFF7# – CFF9#: Abort code
• Causes: Memory board (MEMB: UK-115)
• Troubleshooting Guides: 1. Turn OFF the main power switch and unplug the power cord. Connect the power cord after 15 sec. or more, and turn ON the main power switch. 2. Check the connectors of MEMB for proper connection and correct or replace as necessary. 3. Execute [Service Mode] -> [State Confirmation] -> [Memory/Storage Adjustment] -> [Memory Check] -> [Rough Check], and check that no abnormalities. When ‘NG’ is displayed, replace the appropriate memory or PWB. • FILE0: Memory board (MEMB: UK-115) A800 image memory ChA • FILE1: Memory board (MEMB: UK-115) A800 image memory ChB 4. Replace MEMB.

• Code: CFFB# … CFFC#
• Description: CFFB# – CFFC#: Abort code
• Causes: EFI relay board (EFIRYB: VI-516)
• Troubleshooting Guides: 1. Turn OFF the main power switch and unplug the power cord. Connect the power cord after 15 sec. or more, and turn ON the main power switch. 2. Check the connectors of EFIRYB for proper connection and correct or replace as necessary. 3. Replace EFIRYB.

• Code: CFFD#
• Description: CFFD#: Abort code
• Causes: CFFD0 – CFFDD EFI relay board (EFIRYB: VI-516)
  CFFDE – CFFDF Memory board (MEMB: UK-115)
• Troubleshooting Guides: 1. Turn OFF the main power switch and unplug the power cord. Connect the power cord after 15 sec. or more, and turn ON the main power switch. 2. Check the connectors of EFIRYB for proper connection and correct or replace as necessary. 3. Check the connectors of MEMB for proper connection and correct or replace as necessary. 4. Execute [Service Mode] -> [State Confirmation] -> [Memory/Storage Adjustment] -> [Memory Check] -> [Rough Check], and check that no abnormalities. When ‘NG’ is displayed, replace the appropriate memory or PWB. • FILE0: Memory board (MEMB: UK-115) A800 image memory ChA • FILE1: Memory board (MEMB: UK-115) A800 image memory ChB 5. Replace EFIRYB. 6. Replace MEMB.

• Code: CFFE# … CFFF#
• Description: CFFE# – CFFF#: Abort code
• Causes: Memory board (MEMB: UK-115)
• Troubleshooting Guides: 1. Turn OFF the main power switch and unplug the power cord. Connect the power cord after 15 sec. or more, and turn ON the main power switch. 2. Check the connectors of MEMB for proper connection and correct or replace as necessary. 3. Execute [Service Mode] -> [State Confirmation] -> [Memory/Storage Adjustment] -> [Memory Check] -> [Rough Check], and check that no abnormalities. When ‘NG’ is displayed, replace the appropriate memory or PWB. • FILE0: Memory board (MEMB: UK-115) A800 image memory ChA • FILE1: Memory board (MEMB: UK-115) A800 image memory ChB 4. Replace MEMB.

• Code: D-1
• Description: Split line detect (front side)
  • While recovering from the power save mode or when the main power switch and power key are ON, it detects whether or not stain exist at the document reading glass when the DF is closed. This warning will be displayed if the original is set to DF when stain exist. • The thin line detection level and the warning display can be changed by [Service Mode] -> [System 2] -> [Split Line Detect. Setting] -> [Front Side].
• Causes: <When DF-632 is installed> • Glass cleaning motor (M4) • Document reading glass cleaning sensor (PS12) • DF control board (DFCB)
  <When DF-714 is installed> • Document reading glass cleaning motor (M6) • Document reading glass cleaning sensor (PS13) • DF control board (DFCB)
• Troubleshooting Guides: When DF-632 is installed 1. Wipe clean the document reading glass surface. 2. Check the glass cleaning roller unit for proper installation and correct if necessary. Clean the glass cleaning roller unit if dirty. 3. Select [Service Mode] -> [System 2] -> [Split Line Detect. Setting] -> [Front Side], and change the setting. 4. Check DFCB connector for proper connection and correct as necessary. 5. M4 operation check 6. Replace the glass cleaning roller unit. 7. Replace DFCB.
  When DF-714 is installed 1. Wipe clean the document reading glass surface. 2. Check the front side glass cleaning roller unit for proper installation and correct if necessary. Clean the front side glass cleaning roller unit if dirty. 3. Select [Service Mode] -> [System 2] -> [Split Line Detect. Setting] -> [Front Side], and change the setting. 4. Check DFCB connector for proper connection and correct as necessary. 5. M6 operation check 6. Replace the front side glass cleaning roller unit. 7. Replace DFCB.

• Code: D-3
• Description: Split line detect (back side) (When DF-714 is installed)
  • While recovering from the power save mode or when the main power switch and power key are ON, it detects whether or not stain exist at the back side original scanning section (CIS) when the DF is closed. This warning will be displayed if the original is set to DF when stain exist. • The thin line detection level and the warning display can be changed by [Service Mode] -> [System 2] -> [Split Line Detect. Setting] -> [Back Side].
• Causes: • CIS module (CIS) • CIS power supply (CISPU) • CPU board (CPUB) • Base board (BASEB)
• Troubleshooting Guides: 1. Wipe clean the CIS glass surface. 2. Check the back side glass cleaning roller unit for proper installation and correct if necessary. Clean the back side glass cleaning roller unit if dirty. 3. If there is a problem in the CIS module connection, correct the faulty connection. 4. Replace CIS. 5. Replace CISPU. 6. Replace CPUB. 7. Replace BASEB.

• Code: E1-1
• Description: Target device NVMeSSD
  Diagnosis item Device recognition
  Reason of error Engagement failure Mounting failure
• Causes: Storage board (STRGB) CPU board (CPUB)
• Troubleshooting Guides: 1. Turn OFF the main power switch and unplug the power cord. Connect the power cord after 15 sec. or more, and turn ON the main power switch. 2. Correct the mounting of STRGB if faulty. 3. Correct the mounting of CPUB if faulty. 4. Replace STRGB. 5. Replace CPUB.

• Code: E1-2
• Description: Target device NVMeSSD
  Diagnosis item R/W check
  Reason of error STRGB error (data failure)
• Causes: Storage board (STRGB)
• Troubleshooting Guides: 1. Turn OFF the main power switch and unplug the power cord. Connect the power cord after 15 sec. or more, and turn ON the main power switch. 2. Correct the mounting of STRGB if faulty. 3. Replace STRGB.

• Code: E1-3
• Description: Target device NVMeSSD
  Diagnosis item S.M.A.R.T diag.
  Reason of error STRGB error (data failure)
• Causes: Storage board (STRGB)
• Troubleshooting Guides: 1. Turn OFF the main power switch and unplug the power cord. Connect the power cord after 15 sec. or more, and turn ON the main power switch. 2. Correct the mounting of STRGB if faulty. 3. Replace STRGB.

• Code: E1-4
• Description: Target device NVMeSSD
  Diagnosis item MFP FW checksum
  Reason of error STRGB error (data failure)
• Causes: MFP firmware
• Troubleshooting Guides: 1. Turn OFF the main power switch and unplug the power cord. Connect the power cord after 15 sec. or more, and turn ON the main power switch. 2. Perform re-installation of the firmware.

• Code: E1-5
• Description: Target device NVMeSSD
  Diagnosis item Partition check
  Reason of error STRGB error (data failure)
• Causes: Storage board (STRGB)
• Troubleshooting Guides: 1. Turn OFF the main power switch and unplug the power cord. Connect the power cord after 15 sec. or more, and turn ON the main power switch. 2. Correct the mounting of STRGB if faulty. 3. Select [Service Mode] -> [State Confirmation] -> [Memory/Storage Adjustment] -> [Format] -> [Logical Format] and perform the function. 4. Replace STRGB.

• Code: E10-1, E10-2
• Description: Target device DSC board (Security kit)
  Diagnosis item E10-1 Image bus check (front side) E10-2 Image bus check (back side)
  Reason of error Engagement failure Mounting failure
• Causes: DSC board/1 (DSCB/1)
• Troubleshooting Guides: 1. Turn OFF the main power switch and unplug the power cord. Connect the power cord after 15 sec. or more, and turn ON the main power switch. 2. Correct the mounting of DSCB/1or the connection of connectors if faulty. 3. Replace DSCB/1.

• Code: E11-1, E11-2
• Description: Target device CPU board
  Diagnosis item E11-1 Compress/exp check E11-2 O/P image bus check
  Reason of error E11-1 S800 error E11-2 S800 error
• Causes: CPU board (CPUB)
• Troubleshooting Guides: 1. Turn OFF the main power switch and unplug the power cord. Connect the power cord after 15 sec. or more, and turn ON the main power switch. 2. Correct the mounting of CPUB if faulty. 3. Replace CPUB.

• Code: E12-1 … E12-4
• Description: Target device PCIe
  Diagnosis item E12-1 PCIe device check IRIS(0) E12-2 PCIe device check IRIS(1) E12-3 PCIe device check NVMeSSD E12-4 PCIe device check A800
  Reason of error PCIe device error
• Causes: E12-1, E12-2 CPU board (CPUB)
  E12-3 Storage board (STRGB) CPU board (CPUB)
  E12-4 Memory board (MEMB) CPU board (CPUB)
• Troubleshooting Guides: 1. Turn OFF the main power switch and unplug the power cord. Connect the power cord after 15 sec. or more, and turn ON the main power switch. 2. Correct the mounting of STRGB if faulty. 3. Correct the mounting of MEMB if faulty. 4. Correct the mounting of CPUB if faulty. 5. Replace STRGB. 6. Replace MEMB. 7. Replace CPUB.

• Code: E2-1
• Description: Target device microSD
  Diagnosis item Device recognition
  Reason of error Engagement failure Mounting failure
• Causes: microSD CPU board (CPUB)
• Troubleshooting Guides: 1. Turn OFF the main power switch and unplug the power cord. Connect the power cord after 15 sec. or more, and turn ON the main power switch. 2. Correct the mounting of microSD if faulty. 3. Correct the mounting of CPUB if faulty. 4. Replace microSD. 5. Replace CPUB.

• Code: E2-2
• Description: Target device microSD
  Diagnosis item R/W check
  Reason of error microSD error (data failure)
• Causes: microSD
• Troubleshooting Guides: 1. Turn OFF the main power switch and unplug the power cord. Connect the power cord after 15 sec. or more, and turn ON the main power switch. 2. Correct the mounting of microSD if faulty. 3. Replace microSD.

• Code: E2-3
• Description: Target device microSD
  Diagnosis item S.M.A.R.T diag.
  Reason of error microSD error (data failure)
• Causes: microSD
• Troubleshooting Guides: 1. Turn OFF the main power switch and unplug the power cord. Connect the power cord after 15 sec. or more, and turn ON the main power switch. 2. Correct the mounting of microSD if faulty. 3. Replace microSD.

• Code: E2-4
• Description: Target device microSD
  Diagnosis item MFP FW checksum
  Reason of error microSD error (data failure)
• Causes: MFP firmware
• Troubleshooting Guides: 1. Turn OFF the main power switch and unplug the power cord. Connect the power cord after 15 sec. or more, and turn ON the main power switch. 2. Perform re-installation of the firmware.

• Code: E2-5
• Description: Target device microSD
  Diagnosis item Partition check
  Reason of error microSD error (data failure)
• Causes: microSD
• Troubleshooting Guides: 1. Turn OFF the main power switch and unplug the power cord. Connect the power cord after 15 sec. or more, and turn ON the main power switch. 2. Correct the mounting of microSD if faulty. 3. Select [Service Mode] -> [State Confirmation] -> [Memory/Storage Adjustment] -> [Format] -> [Logical Format] and perform the function. 4. Replace microSD.

• Code: E3-1
• Description: Target device I2C
  Diagnosis item TPM
  Reason of error Connection failure Parts defect
• Causes: TPM board (TPMB) CPU board (CPUB) Base board (BASEB)
• Troubleshooting Guides: 1. Turn OFF the main power switch and unplug the power cord. Connect the power cord after 15 sec. or more, and turn ON the main power switch. 2. Correct the mounting of TPMB if faulty. 3. Correct the mounting of CPUB if faulty. 4. Correct the mounting of BASEB or the connection of connectors if faulty. 5. Replace TPMB. 6. Replace CPUB. 7. Replace BASEB.

• Code: E3-2, E3-3
• Description: Target device I2C
  Diagnosis item E3-2 AUDIO (control) E3-3 PS-CPU
  Reason of error Connection failure Parts defect
• Causes: CPU board (CPUB) Base board (BASEB)
• Troubleshooting Guides: 1. Turn OFF the main power switch and unplug the power cord. Connect the power cord after 15 sec. or more, and turn ON the main power switch. 2. Correct the mounting of CPUB if faulty. 3. Correct the mounting of BASEB or the connection of connectors if faulty. 4. Replace CPUB. 5. Replace BASEB.

• Code: E4-1, E4-2
• Description: Target device System/image memory
  Diagnosis item E4-1 WORK0 (Main memory ch.A) E4-2 WORK1 (Main memory ch.B)
  Reason of error Engagement failure Mounting failure DRAM failure
  NOTE . When executing the Self-diag. (Full) after the trouble code (CE301, CE304) is displayed, the self-diagnosis may not complete. In that case, finish the Self-diag. (Full) forcibly, and perform the troubleshooting against each trouble code. . Turning OFF the main power switch will finish the Self-diag. (Full) forcibly.
• Causes: CPU board (CPUB)
• Troubleshooting Guides: 1. Turn OFF the main power switch and unplug the power cord. Connect the power cord after 15 sec. or more, and turn ON the main power switch. 2. Correct the mounting of CPUB if faulty. 3. Replace CPUB.

• Code: E4-3, E4-4
• Description: Target device System/image memory
  Diagnosis item E4-3 FILE0 (A800 memory ch.A) E4-4 FILE1 (A800 memory ch.B)
  Reason of error Engagement failure Mounting failure DRAM failure
• Causes: Memory board (MEMB)
• Troubleshooting Guides: 1. Turn OFF the main power switch and unplug the power cord. Connect the power cord after 15 sec. or more, and turn ON the main power switch. 2. Correct the mounting of MEMB if faulty. 3. Replace MEMB.

• Code: E5-1
• Description: Target device Various USB devices
  Diagnosis item IRIS0
  Reason of error Connection failure Parts defect
• Causes: CPU board (CPUB)
• Troubleshooting Guides: 1. Turn OFF the main power switch and unplug the power cord. Connect the power cord after 15 sec. or more, and turn ON the main power switch. 2. Correct the mounting of CPUB if faulty. 3. Replace CPUB.

• Code: E5-11
• Description: Target device Various USB devices
  Diagnosis item Upgrade kit (UK-221)
  Reason of error Connection failure Parts defect
• Causes: Wireless LAN board (WLANB) Base board (BASEB)
• Troubleshooting Guides: 1. Turn OFF the main power switch and unplug the power cord. Connect the power cord after 15 sec. or more, and turn ON the main power switch. 2. Correct the mounting of the upgrade kit (UK-221) or the connection of connectors if faulty. 3. Correct the mounting of BASEB or the connection of connectors if faulty. 4. Replace WLANB. 5. Replace BASEB.

• Code: E5-12
• Description: Target device Various USB devices
  Diagnosis item Authentication unit
  Reason of error Connection failure Parts defect
• Causes: Authentication unit Base board (BASEB)
• Troubleshooting Guides: 1. Turn OFF the main power switch and unplug the power cord. Connect the power cord after 15 sec. or more, and turn ON the main power switch. 2. Correct the mounting and connection of the authentication unit if faulty. 3. Correct the mounting of BASEB or the connection of connectors if faulty. 4. Replace the authentication unit. 5. Replace BASEB.

• Code: E5-2
• Description: Target device Various USB devices
  Diagnosis item USB3.0-HUB chip (base board)
  Reason of error Connection failure Parts defect
• Causes: CPU board (CPUB) Base board (BASEB)
• Troubleshooting Guides: 1. Turn OFF the main power switch and unplug the power cord. Connect the power cord after 15 sec. or more, and turn ON the main power switch. 2. Correct the mounting of CPUB if faulty. 3. Correct the mounting of BASEB or the connection of connectors if faulty. 4. Replace CPUB. 5. Replace BASEB.

• Code: E5-3
• Description: Target device Various USB devices
  Diagnosis item USB2.0-HUB chip (base board)
  Reason of error Connection failure Parts defect
• Causes: Base board (BASEB)
• Troubleshooting Guides: 1. Turn OFF the main power switch and unplug the power cord. Connect the power cord after 15 sec. or more, and turn ON the main power switch. 2. Correct the mounting of BASEB or the connection of connectors if faulty. 3. Replace BASEB.

• Code: E5-4
• Description: Target device Various USB devices
  Diagnosis item USB device HUB chip (USB hub board)
  Reason of error Connection failure Parts defect
• Causes: USB hub board (USBHB) Base board (BASEB)
• Troubleshooting Guides: 1. Turn OFF the main power switch and unplug the power cord. Connect the power cord after 15 sec. or more, and turn ON the main power switch. 2. Correct the mounting of USBHB or the connection of connectors if faulty. 3. Correct the mounting of BASEB or the connection of connectors if faulty. 4. Replace USBHB. 5. Replace BASEB.

• Code: E5-5
• Description: Target device Various USB devices
  Diagnosis item DAC-IC
  Reason of error Connection failure Parts defect
• Causes: USB hub board (USBHB)
• Troubleshooting Guides: 1. Turn OFF the main power switch and unplug the power cord. Connect the power cord after 15 sec. or more, and turn ON the main power switch. 2. Correct the mounting of USBHB or the connection of connectors if faulty. 3. Replace USBHB.

• Code: E5-6 … E5-10
• Description: Target device Various USB devices
  Diagnosis item E5-6 Fax expansion board (HUB chip) E5-7 Fax board (line 1) E5-8 Fax board (line 2) E5-9 Fax board (line 3) E5-10 Fax board (line 4)
  Reason of error Connection failure Parts defect
• Causes: Fax board/1 (FAXB/1) Fax board/2 (FAXB/2) Fax board/3 (FAXB/3) Fax board/4 (FAXB/4) Fax expansion board Base board (BASEB)
• Troubleshooting Guides: 1. Turn OFF the main power switch and unplug the power cord. Connect the power cord after 15 sec. or more, and turn ON the main power switch. 2. Correct the mounting of the fax board or the connection of connectors if faulty. 3. Correct the mounting of the fax expansion board or the connection of connectors if faulty. 4. Correct the mounting of BASEB or the connection of connectors if faulty. 5. Replace the fax board. (Fax board (line 1), Fax board (line 2) / Fax board (line 3), Fax board (line 4)) 6. Replace the fax expansion board. 7. Replace BASEB.

• Code: E6-1, E6-2
• Description: Target device CCD board
  Diagnosis item E6-1 I/P image bus check E6-2 Line RAM comparison
  Reason of error E6-1 Image bus failure E6-2 CCD sensor failure
• Causes: E6-1 Connection cable CCD board (CCDB) CPU board (CPUB) Base board (BASEB)
  E6-2 CCD board (CCDB)
• Troubleshooting Guides: 1. Turn OFF the main power switch and unplug the power cord. Connect the power cord after 15 sec. or more, and turn ON the main power switch. 2. Correct the mounting of CCDB or the connection cable if faulty. 3. Correct the mounting of CPUB if faulty. 4. Correct the mounting of BASEB or the connection of connectors if faulty. 5. Replace the connection cable. 6. Replace the CCD unit. 7. Replace CPUB. 8. Replace BASEB.
  NOTE . When executing the Self-diag. (Full) after the trouble code (C6###, C91##) is displayed, the self-diagnosis may not complete. In that case, finish the Self-diag. (Full) forcibly, and perform the troubleshooting against each trouble code. . Turning OFF the main power switch will finish the Self-diag. (Full) forcibly.

• Code: E7-1, E7-2
• Description: Target device CIS module
  Diagnosis item E7-1 I/P image bus check E7-2 Line RAM comparison
  Reason of error E7-1 Image bus failure E7-2 CIS sensor failure
• Causes: E7-1 CIS cable CIS module (CIS) CPU board (CPUB) Base board (BASEB)
  E7-2 CIS module (CIS)
• Troubleshooting Guides: 1. Turn OFF the main power switch and unplug the power cord. Connect the power cord after 15 sec. or more, and turn ON the main power switch. 2. Correct the mounting of CIS or the CIS cable if faulty. 3. Correct the mounting of CPUB if faulty. 4. Correct the mounting of BASEB or the connection of connectors if faulty. 5. Replace the CIS cable. 6. Replace CIS. 7. Replace CPUB. 8. Replace BASEB.
  NOTE . When executing the Self-diag. (Full) after the trouble code (C6###, C91##) is displayed, the self-diagnosis may not complete. In that case, finish the Self-diag. (Full) forcibly, and perform the troubleshooting against each trouble code. . Turning OFF the main power switch will finish the Self-diag. (Full) forcibly.

• Code: E8-1
• Description: Target device DF control board
  Diagnosis item MINET communication check
  Reason of error ADF microcomputer communication failure
• Causes: Connection cable DF control board (DFCB) CPU board (CPUB) Base board (BASEB)
• Troubleshooting Guides: 1. Turn OFF the main power switch and unplug the power cord. Connect the power cord after 15 sec. or more, and turn ON the main power switch. 2. Correct the mounting of DFCB or the connection of connectors if faulty. 3. Correct the mounting of CPUB if faulty. 4. Correct the mounting of BASEB or the connection of connectors if faulty. 5. Correct the connection of the connection cable if faulty. 6. Replace the connection cable. 7. Replace DFCB. (DF-632 / DF-714) 8. Replace CPUB. 9. Replace BASEB.

• Code: E9-1
• Description: Target device Memory board (A800)
  Diagnosis item Compress/exp check
  Reason of error A800 error
• Causes: Memory board (MEMB)
• Troubleshooting Guides: 1. Turn OFF the main power switch and unplug the power cord. Connect the power cord after 15 sec. or more, and turn ON the main power switch. 2. Correct the mounting of MEMB if faulty. 3. Replace MEMB.

• Code: P-14
• Description: Skew correction trouble
  The difference between the skew default position setting value and the cumulative amount of skew adjustment values goes over the predetermined value.
• Causes: • IDC sensor/Fr (IDCS/Fr) • IDC sensor/Rr (IDCS/Rr) • Drum unit/Y,M,C,K • Expansion control board (EXCB) • Base board (BASEB) • PH unit
• Troubleshooting Guides: 1. Check the drive transmission portion of the drum unit and correct as necessary. 2. Clean the contact of the drum unit connector if dirty. 3. Reinstall or reconnect IDCS/Fr, connectors connecting between IDCS/Fr-relay CN77-BASEB CN15E, if any of the foregoing parts is installed or connected improperly. 4. Reinstall or reconnect IDCS/Rr, connectors connecting between IDCS/Rr-relay CN77-BASEB CN15E, if any of the foregoing parts is installed or connected improperly. 5. Clean IDCS/Fr or IDCS/Rr if it is dirty. 6. Check the connector between the PH unit-relay CN30-EXCB CN7EX for proper connection and correct as necessary. 7. Check the connectors of the EXCB for proper connection and correct as necessary. 8. Check the connectors on BASEB for proper connection and correct as necessary. 9. Replace IDCS/Fr or IDCS/Rr. 10. Replace the drum unit. 11. Replace the PH unit. 12. Replace EXCB. 13. Replace BASEB.
  NOTE . After the PH unit is replaced, reset the skew default position for each color in [Service Mode] -> [Machine] -> [Print Head Skew Adj.] -> [Print Head Skew Adj.] . When this alert code is displayed, according to the list, take actions to address the problem. After the problem is resolved, select [Service Mode] -> [Machine] -> [Print Head Skew Adj.] -> [Print Head Skew Reset] and perform the skew adjustment reset.

• Code: P-21
• Description: Color regist test pattern failure
  • During pre-pattern detection, pre-pattern edge (start/ end point of effective area) is not detected within the pre-pattern search area. • During detection of regist pattern at vertical/horizontal direction, pattern edge (start/end point of effective area) is not detected within the pattern search area of each unit.
• Causes: • Transfer belt unit • PH unit • Expansion control board (EXCB) • Base board (BASEB)
• Troubleshooting Guides: 1. Wipe clean the surface of the transfer belt with a soft cloth, if it is dirty. 2. Replace the transfer belt unit if the transfer belt is damaged. 3. Replace the PH unit. 4. Replace EXCB. 5. Replace BASEB.

• Code: P-22
• Description: Color regist adjust failure
  • The gap between maximum and minimum value of deviations among each color (the values before averaging) is over the predetermined value. • Average deviation exceeds the predetermined value. • In case the final value of the deviation after stabilization exceeds the predetermined value, it is regarded as failure even if the average deviation is within tolerance.
• Causes: • Drum unit/Y,M,C,K • Developing unit/Y,M,C,K • IDC sensor/Fr (IDCS/Fr) • IDC sensor/Rr (IDCS/Rr) • Base board (BASEB)
• Troubleshooting Guides: 1. Slide out the drum/developing unit and reinstall it in position. 2. Reinstall or reconnect IDCS/Fr, connectors connecting between IDCS/Fr-relay CN77-BASEB CN15E, if any of the foregoing parts is installed or connected improperly. 3. Reinstall or reconnect IDCS/Rr, connectors connecting between IDCS/Rr-relay CN77-BASEB CN15E, if any of the foregoing parts is installed or connected improperly. 4. Check the vertical transport guide for installed position and correct as necessary. 5. Replace BASEB.

• Code: P-27
• Description: Secondary transfer ATVC failure
  An abnormal average value is detected during an adjustment of the second transfer ATVC value.
• Causes: • High voltage unit (HV) • Base board (BASEB) • Image transfer entrance guide • 2nd transfer assy • Transfer belt unit
• Troubleshooting Guides: 1. Check the contact between the roller opposed to the 2nd transfer roller in the transfer belt unit and the grounding terminal. Clean the joint or correct if necessary. 2. Check the image transfer entrance guide for proper installation and correct if necessary. 3. Check that the spring does not come off during the pressure operation of the 2nd transfer roller and correct if necessary. 4. Check the contact at the joint of the 2nd transfer assy and HV. Clean the joint or correct if necessary. 5. Replace the transfer belt unit. 6. Replace HV. 7. Replace BASEB.

• Code: P-33
• Description: LD malfunction
  The DETOUT signal of the LD drive detected malfunction consecutively for the predetermined frequency.
• Causes: • Laser diode/Y (LD/Y) • Laser diode/M (LD/M) • Laser diode/C (LD/C) • Laser diode/K (LD/K) • Laser drive board (LDDB) • PH unit • Expansion control board (EXCB) • Base board (BASEB)
• Troubleshooting Guides: 1. Replace the PH unit. 2. Replace EXCB. 3. Replace BASEB.

• Code: P-34
• Description: Atmospheric pressure sensor failure
  An error of the atmospheric pressure sensor (ATMPRS) is detected.
• Causes: • Atmospheric pressure sensor (ATMPRS) • CPU board (CPUB) • Base board (BASEB)
• Troubleshooting Guides: 1. Check the connector between ATMPRS-BASEB CN27E for proper connection and correct as necessary. 2. Clean the cover on ATMPRS, if it is dirty. 3. Replace CPUB. 4. Replace BASEB.

• Code: P-5, P-28
• Description: IDC sensor/Fr failure, IDC sensor/Rr failure
  • During IDC sensor light intensity correction, output voltage detected for all eight sample patterns are 3.35 V or more. • During IDC sensor light intensity correction, sensor output voltage for light intensity selected after the correction is under 0.7 V. • During IDC base surface detective control, sensor output voltage detected is under 0.7 V or over 3.35V. • During image stabilization (gamma correction control), detected output value for IDC sensor did not go below threshold (half the value of what is detected by IDC sensor on the belt surface) for three consecutive times (position of the pattern end is not detected). • During image stabilization (gamma correction control), sensor’s output value of each color for hyper 0 gradation after the primary approximation is half the detection level on the belt surface or under.
• Causes: • IDC sensor/Fr (IDCS/Fr) • IDC sensor/Rr (IDCS/Rr) • High voltage unit (HV) • Transfer belt unit • Base board (BASEB)
• Troubleshooting Guides: 1. Wipe clean the surface of the transfer belt with a soft cloth, if it is dirty. 2. Replace the transfer belt unit if the transfer belt is damaged. 3. Reinstall or reconnect IDCS/Fr, connectors connecting between IDCS/Fr-relay CN77-BASEB CN15E, if any of the foregoing parts is installed or connected improperly. 4. Reinstall or reconnect IDCS/Rr, connectors connecting between IDCS/Rr-relay CN77-BASEB CN15E, if any of the foregoing parts is installed or connected improperly. 5. Clean IDCS/Fr or IDCS/Rr if it is dirty. 6. Check the connector between HV CN1-BASEB CN26E, HV CN2-BASEB CN21E for proper connection. 7. Open/close the front door, run an image stabilization sequence, and select [State Confirmation] -> [Level History 1] to check the IDC value. IDC1: IDCS/Fr IDC2: IDCS/Rr If the value is 1.0 V or less, replace IDCS/Fr or IDCS/Rr. 8. Replace BASEB.

• Code: P-6 … P-9
• Description: P-6, P-7, P-8, P-9 Drum/Development unit (C) failure, Drum/Development unit (M) failure, Drum/Development unit (Y) failure, Drum/Development unit (K) failure
  • All density readings taken from the density pattern produced on the transfer belt are 1.0 g/m2 (IDC sensor photo receiver output) or less during max. density adjustment (Vg/Vdc adjustment). • All density readings taken from the density pattern produced on the transfer belt are 4.0 g/m2 (K), 3.5 g/ m2 (Y,M,C) (IDC sensor photo receiver output) and more during max. density adjustment (Vg/Vdc adjustment).
• Causes: • Drum unit/Y,M,C,K • Developing unit/Y,M,C,K • IDC sensor/Fr (IDCS/Fr) • IDC sensor/Rr (IDCS/Rr) • Base board (BASEB) • High voltage unit (HV) • Transfer belt unit
• Troubleshooting Guides: 1. Check the setting value in [Max Image Density Adj] of [Service Mode] -> [Imaging Process Adjustment] and, if it is negative, readjust. 2. Check the drive transmission portion of the drum/developing unit and correct as necessary. 3. Clean the IDC sensor/Fr (IDCS/Fr) or IDC sensor/Rr (IDCS/Rr) window if dirty. 4. Clean the contact of the drum/developing unit connector if dirty. 5. Check the connector between HV CN1-BASEB CN26E, HV CN2-BASEB CN21E for proper connection. 6. Replace the drum unit. 7. Replace the developing unit. 8. Replace the transfer belt unit. 9. Replace HV. 10. Replace BASEB.

• Code: S-1
• Description: CCD gain adjustment failure
  It is detected that the CCD clamp gain adjustment value is faulty.
• Causes: • LED exposure unit • CCD unit • Scanner drive board (SCDB) • Base board (BASEB)
• Troubleshooting Guides: 1. Correct the connector connection between CCDB CN2-BASEB CN6 if faulty. 2. Check for possible extraneous light and correct as necessary. 3. Clean the lens, mirrors, CCD surface, and shading sheet if dirty. 4. Correct reflective mirror of the scanner if faulty, or change scanner mirror. 5. Replace the CCD unit. 6. Replace SCDB. 7. Replace BASEB.

• Code: S-2
• Description: CIS gain adjustment failure (When DF-714 is installed)
  It is detected that the CIS clamp gain adjustment value is faulty.
• Causes: • CIS module (CIS) • CPU board (CPUB) • Base board (BASEB)
• Troubleshooting Guides: 1. Correct the connector connection between CIS J221-BASEB CN5 if faulty. 2. Check CPUB for proper installation and correct as necessary. 3. Check for possible extraneous light and correct as necessary. 4. Wipe clean the back side scanning glass surface and shading sheet. 5. Replace CIS. 6. Replace CPUB. 7. Replace BASEB.

– Get more error code list with quick guide to fix printer product, click here
– About get help with reseting Epson inkpad or others, click here






– Get more information about Epson XP 15000 troubleshooting, click here
– Buy cheap key of Epson WIC Reset Tool, CLICK HERE
– Key Epson Adjustment Program, CLICK HERE
– Download Epson printer driver, CLICK HERE
– Download Epson XP-6100 Driver, Firmware and Manuals, CLICK HERE

Contact us to get support with Konica-Minolta bizhub C250i Error case

Telegram: https://t.me/hyperaktiv
Facebook: https://www.facebook.com/dngnm/
Or click here to get more ways.