[SOLVED] Quick fix Konica-Minolta C300i list error codes

– Compatible Printer model: Konica-Minolta bizhub C300i
– Konica-Minolta bizhub C300i Error Codes with quick guides:

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: 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 J9-4 (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: 72-23
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 J9-8 (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 J11-6 (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: 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: 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: 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 J14-6 (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 J4-4 (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-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 J11-3 (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 J11-3 (ON) • Location of electrical component: FS-536/FS-536SD 4-C 6. PS24 I/O check, sensor check • Control signal: FSCB J11-6 (ON) • Location of electrical component: FS-536/FS-536SD 5-C 7. Replace the stapler unit. 8. Replace FSCB.

Quick fix Konica-Minolta C300i list error codes

Solve Konica-Minolta bizhub C300i Error codes

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: 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: 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: 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: 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: 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: 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: 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: 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: 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: 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: 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: 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: 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: 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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

Code: 10-01
Description: 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.
Causes: • Transport motor (M1) • Registration clutch (CL4) • Bypass paper feed clutch (CL7) • Bypass pick-up solenoid (SD1) • Registration sensor (PS1) • Front side board (FRB) • MFP board (MFPB)
Troubleshooting Guides:

Code: 10-02
Description: 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.
Causes: • Transport motor (M1) • Registration clutch (CL4) • Bypass paper feed clutch (CL7) • Bypass pick-up solenoid (SD1) • Registration sensor (PS1) • Front side board (FRB) • MFP board (MFPB)
Troubleshooting Guides:

Code: 10-40
Description: 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 paper feed clutch (CL7) • Bypass pick-up solenoid (SD1) • Registration sensor (PS1) • Front side board (FRB) • MFP board (MFPB)
Troubleshooting Guides:

Code: 11-01
Description: 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 tray 1 starts to feed paper.
Causes: • Transport motor (M1) • Tray 1 paper feed clutch (CL3) • Registration clutch (CL4) • Registration sensor (PS1) • Front side board (FRB) • MFP board (MFPB)
Troubleshooting Guides:

Code: 11-02
Description: For paper fed from the tray 1, due to a delay in paper arrival, loop forming in front of the registration roller is not complete before the rise timing of the transport motor (M1).
Causes: • Transport motor (M1) • Tray 1 paper feed clutch (CL3) • Registration clutch (CL4) • Registration sensor (PS1) • Front side board (FRB) • MFP board (MFPB)
Troubleshooting Guides:

Code: 11-40
Description: 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) • Registration sensor (PS1) • Front side board (FRB) • MFP board (MFPB)
Troubleshooting Guides:

Code: 12-01
Description: The leading edge of the paper does not turn ON the tray 2 vertical transport sensor (PS19) even after the lapse of a given period of time after the tray 2 starts to feed paper.
Causes: • Transport motor (M1) • Tray 2 paper feed clutch (CL1) • Tray 2 vertical transport clutch (CL2) • Tray 2 vertical transport sensor (PS19) • MFP board (MFPB)
Troubleshooting Guides:

Code: 12-40
Description: 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.
Causes: • Transport motor (M1) • Tray 2 paper feed clutch (CL1) • Tray 2 vertical transport clutch (CL2) • Tray 2 vertical transport sensor (PS19) • MFP board (MFPB)
Troubleshooting Guides:

Code: 13-01
Description: The leading edge of the paper is not turned ON the tray 3 vertical transport sensor (PS113) even after the lapse of a given period of time after the tray 3 starts to feed paper.
Causes: • Tray 3 paper feed motor (M111) • Tray 3 vertical transport motor (M112) • Tray 3 vertical transport sensor (PS113) • PC control board (PCCB)
Troubleshooting Guides:

Code: 13-40
Description: 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.
Causes: • Tray 3 paper feed motor (M111) • Tray 3 vertical transport motor (M112) • Tray 3 vertical transport sensor (PS113) • PC control board (PCCB)
Troubleshooting Guides:

Code: 14-01
Description: The leading edge of the paper is not turned ON the tray 4 vertical transport sensor (PS123) even after the lapse of a given period of time after the tray 4 starts to feed paper.
Causes: • Tray 4 paper feed motor (M121) • Tray 4 vertical transport motor (M122) • Tray 4 vertical transport sensor (PS123) • PC control board (PCCB)
Troubleshooting Guides:

Code: 14-40
Description: 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.
Causes: • Tray 4 paper feed motor (M121) • Tray 4 vertical transport motor (M122) • Tray 4 vertical transport sensor (PS123) • PC control board (PCCB)
Troubleshooting Guides:

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[SOLVED] Quick fix Konica-Minolta C300i list error codes