[SOLVED] Quick fix Konica-Minolta C257i list error codes

– Compatible Printer model: Konica-Minolta bizhub C257i
– Konica-Minolta bizhub C257i Error Codes with quick guides:

Code: 10-01, 10-02, 10-40
Description: Misfeed at manual bypass paper feed section
10-01 The leading edge of the paper is not turned ON (unblocked) the registration sensor (PS1) even after the lapse of a given period of time after the manual bypass tray starts to feed paper.
10-02 For paper fed from the manual bypass tray, loop forming has not been complete before a sheet enters the registration roller because the rise timing of load to perform registration is earlier than the rise timing of load to form a loop.
10-40 For paper fed from the manual bypass tray, the image write start signal permit continues to be disabled for a predetermined period of time after the timing of the image write start signal output.
Causes: • Transport motor (M1)
• Registration clutch (CL4)
• Bypass tray paper feed clutch (CL7)
• Registration sensor (PS1)
• Base board (BASEB)
Troubleshooting Guides: 1 Initial check items – –
2 PS1 I/O check, sensor check BASEB CN13E<A>-9 (ON) 6-C
3 CL4 load check
• Check code: 21
• Multi code: 2
BASEB CN13E<A>-11 (ON) 7-C
4 CL7 load check
• Check code: 20
• Multi code: 3
BASEB CN30E-2 (ON) 13-C
5 M1 load check
• Check code: 40
• Multi code: 1, 3
BASEB CN11E-4 (REM)
BASEB CN11E-7 (LOCK)
3-C
6 BASEB F13E, F21E conduction check – –
7 Replace BASEB.

Code: 11-01, 11-02, 11-05, 11-40
Description: Misfeed at tray 1 paper feed section
11-01 The leading edge of the paper is not turned ON (unblocked) the registration sensor (PS1) even after the lapse of a given period of time after the tray 1 starts to feed paper.
11-02 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).
11-05 The leading edge of the paper is not turned ON the tray 1 paper feed sensor (PS23) even after the lapse of a given period of time after the tray 1 starts to feed paper.
11-40 For paper fed from the tray 1, the image write start signal permit continues to be disabled for a predetermined period of time after the timing of the image write start signal output.
Causes: • Transport motor (M1)
• Tray 1 paper feed clutch (CL3)
• Registration clutch (CL4)
• Registration sensor (PS1)
• Tray 1 paper feed sensor (PS23)
• Base board (BASEB)
Troubleshooting Guides: 1 Initial check items – –
2 PS1 I/O check, sensor check BASEB CN13E<A>-9 (ON) 6-C
3 PS23 I/O check, sensor check BASEB CN5E<A>-3 (ON) 9-C
4 CL3 load check
• Check code: 20
• Multi code: 1
BASEB CN5E<A>-11 (ON) 9-C
5 CL4 load check
• Check code: 21
• Multi code: 2
BASEB CN13E<A>-11 7-C
6 M1 load check
• Check code: 40
• Multi code: 1, 3
BASEB CN11E-4 (REM)
BASEB CN11E-7 (LOCK)
3-C
7 BASEB F13E, F21E conduction check – –
8 Replace BASEB. – –

Code: 12-01, 12-05, 12-40
Description: Misfeed at tray 2 paper feed section
12-01 The leading edge of the paper is not turned ON (unblocked) 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.
12-05 The leading edge of the paper is not turned ON the tray 2 paper feed sensor (PS20) even after the lapse of a given period of time after the tray 2 starts to feed paper.
12-40 For paper fed from the tray 2, the image write start signal permit continues to be disabled for a predetermined period of time after the timing of the image write start signal output.
– Paper jam of a sheet of paper left at the tray 2 feed section results, if the tray 2 vertical transport sensor (PS19) 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 tray 2 feed section results, if a sheet of paper is determined to exist at a position detected when the main power switch is turned ON, a door is opened and closed, or a misfeed or malfunction is reset.
Causes: • Transport motor (M1)
• Tray 2 paper feed clutch (CL1)
• Tray 2 vertical transport clutch (CL2)
• Tray 2 vertical transport sensor (PS19)
• Tray 2 paper feed sensor (PS20)
• Base board (BASEB)
Troubleshooting Guides: 1 Initial check items – –
2 PS19 I/O check, sensor check BASEB CN5E-16 (ON) 12-C
3 PS20 I/O check, sensor check BASEB CN5E-3 (ON) 10-C
4 CL1 load check
• Check code: 20
• Multi code: 2
BASEB CN5E-11 (ON) 11-C
5 CL2 load check
• Check code: 21
• Multi code: 1
BASEB CN5E-13 (ON) 11-C
6 M1 load check
• Check code: 40
• Multi code: 1, 3
BASEB CN11E-4 (REM)
BASEB CN11E-7 (LOCK)
3-C
7 BASEB F13E, F21E conduction check – –
8 Replace BASEB.

Code: 13-01, 13-05, 13-40
Description: Misfeed at tray 3 paper feed section
13-01 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.
13-05 The leading edge of the paper is not turned ON the tray 3 paper feed sensor (PS112) even after the lapse of a given period of time after the tray 3 starts to feed paper.
13-40 For paper fed from the tray 3, the image write start signal permit continues to be disabled for a predetermined period of time after the timing of the image write start signal output.
– Paper jam of a sheet of paper left at the tray 3 feed section results, if the tray 3 vertical transport sensor (PS113) is turned ON when the main power switch is turned ON, a door is opened and closed, or a misfeed or malfunction is reset.
– Paper jam of a sheet of paper left at the tray 3 feed section results, if a sheet of paper is determined to exist at a position detected when the main power switch is turned ON, a door is opened and closed, or a misfeed or malfunction is reset.
Causes: • Tray 3 paper feed motor (M111)
• Tray 3 vertical transport motor (M112)
• Tray 3 paper feed sensor (PS112)
• Tray 3 vertical transport sensor (PS113)
• PC control board (PCCB)
Troubleshooting Guides: 1 Initial check items – –
2 PS113 I/O check, sensor check PCCB CN4-14 (ON) PC-118/PC-218 5-C
3 PS112 I/O check, sensor check PCCB CN4-11 (ON) PC-118/PC-218 5-C
4 M111 load check
• Check code: 28
• Multi code: 9, 11
PCCB CN5-1 to 8 PC-118/PC-218 4-C
5 M112 load check
• Check code: 28
• Multi code: 17, 19
PCCB CN5-9 to 16 PC-118/PC-218 3 to 4-C
6 Replace PCCB.

Code: 14-01, 14-05, 14-40
Description: Misfeed at tray 4 paper feed section
14-01 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.
14-05 The leading edge of the paper is not turned ON the tray 4 paper feed sensor (PS122) even after the lapse of a given period of time after the tray 4 starts to feed paper.
14-40 For paper fed from the tray 4, the image write start signal permit continues to be disabled for a predetermined period of time after the timing of the image write start signal output.
– Paper jam of a sheet of paper left at the tray 4 feed section results, if the tray 4 vertical transport sensor (PS123) is turned ON when the main power switch is turned ON, a door is opened and closed, or a misfeed or malfunction is reset.
– Paper jam of a sheet of paper left at the tray 4 feed section results, if a sheet of paper is determined to exist at a position detected when the main power switch is turned ON, a door is opened and closed, or a misfeed or malfunction is reset.
Causes: • Tray 4 paper feed motor (M121)
• Tray 4 vertical transport motor (M122)
• Tray 4 paper feed sensor (PS122)
• Tray 4 vertical transport sensor (PS123)
• PC control board (PCCB)
Troubleshooting Guides: 1 Initial check items – –
2 PS123 I/O check, sensor check PCCB CN18C-5 (ON) PC-218 7-K
3 PS122 I/O check, sensor check PCCB CN18C-2 (ON) PC-218 7-K
4 M121 load check
• Check code: 28
• Multi code: 13, 15
PCCB CN9C-1 to 8 PC-218 6-K
5 M122 load check
• Check code: 28
• Multi code: 21, 23
PCCB CN9C-9 to 16 PC-218 6-K
6 Replace PCCB.

Code: 16-01, 16-05, 16-40
Description: Misfeed at LCT feed/vertical transport section
16-01 The leading edge of the paper is not turned ON the LCT vertical transport sensor (PS133) even after the lapse of a given period of time after the LCT starts to feed paper.
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 LCT starts to feed paper.
16-40 For paper fed from the 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 LCT transport section results, if the LCT 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 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)
• LCT 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-418 7-J
3 PS133 I/O check, sensor check PCCB CN4-14 (ON) PC-418 7-J
4 M131 load check
• Check code: 28
• Multi code: 1, 3
PCCB CN5-1 to 8 PC-418 5-J
5 M132 load check
• Check code: 28
• Multi code: 5, 7
PCCB CN5-9 to 16 PC-418 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 paper has turned ON (unblocked) 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 CN13E<A>-9 (ON) 6-C
3 PS19 I/O check, sensor check BASEB CN5E-16 (ON) 12-C
4 CL2 load check
• Check code: 21
• Multi code: 1
BASEB CN5E-13 (ON) 11-C
5 CL4 load check
• Check code: 21
• Multi code: 2
BASEB CN13E<A>-11 (ON) 7-C
6 M1 load check
• Check code: 40
• Multi code: 1, 3
BASEB CN11E-4 (REM)
BASEB CN11E-7 (LOCK)
3-C
7 BASEB F13E, F21E conduction check – –
8 Replace BASEB.

Code: 20-21
Description: (1) When PC-118 or PC-218 is installed
Misfeed at vertical transport section (tray 3)
20-21 The tray 2 vertical transport sensor (PS19) is not turned ON (unblocked) even after the lapse of a given period of time after the tray 3 vertical transport sensor (PS113) is turned ON by a paper.
– 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: • 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)
Troubleshooting Guides: 1 Initial check items – –
2 PS113 I/O check, sensor check PCCB CN4-14 (ON) PC-118/PC-218 5-C
3 PS19 I/O check, sensor check BASEB CN5E-16 (ON) 12-C
4 CL2 load check
• Check code: 21
• Multi code: 1
BASEB CN5E-13 (ON) 11-C
5 M112 load check
• Check code: 28
• Multi code: 17, 19
PCCB CN5-9 to 16 PC-118/PC-218 3 to 4-C
6 M1 load check
• Check code: 40
• Multi code: 1, 3
BASEB CN11E-4 (REM)
BASEB CN11E-7 (LOCK)
3-C
7 BASEB F13E, F21E conduction check – –
8 Replace BASEB. – –
9 Replace PCCB.

Code: 20-21
Description: (2) When PC-418 is installed
Misfeed at vertical transport section (tray 3)
20-21 The tray 2 vertical transport sensor (PS19) is not turned ON (unblocked) even after the lapse of a given period of time after the LCT vertical transport sensor (PS133) is turned ON by a paper.
– 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: • Transport motor (M1)
• Vertical transport motor (M132)
• Tray 2 vertical transport clutch (CL2)
• Tray 2 vertical transport sensor (PS19)
• LCT vertical transport sensor (PS133)
• Base board (BASEB)
• PC control board (PCCB)
Troubleshooting Guides: 1 Initial check items – –
2 PS133 I/O check, sensor check PCCB CN4-14 (ON) PC-418 7-J
3 PS19 I/O check, sensor check BASEB CN5E-16 (ON) 12-C
4 CL2 load check
• Check code: 21
• Multi code: 1
BASEB CN5E-13 (ON) 11-C
5 M132 load check
• Check code: 28
• Multi code: 5, 7
PCCB CN5-9 to 16 PC-418 4-J
6 M1 load check
• Check code: 40
• Multi code: 1, 3
BASEB CN11E-4 (REM)
BASEB CN11E-7 (LOCK)
3-C
7 BASEB F13E, F21E conduction check – –
8 Replace BASEB. – –
9 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 tray 4 vertical transport sensor (PS123) has been blocked by a paper.
– 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 CN18C-5 (ON) PC-218 7-K
3 PS113 I/O check, sensor check PCCB CN4-14 (ON) PC-218 5-C
4 M122 load check
• Check code: 28
• Multi code: 21, 23
PCCB CN9C-9 to 16 PC-218 6-K
5 M112 load check
• Check code: 28
• Multi code: 17, 19
PCCB CN5-9 to 16 PC-218 3 to 4-C
6 Replace PCCB.

Code: 30-03
Description: Misfeed at transfer section
30-03 • The leading edge of paper is not turned ON (unblocked) the paper exit sensor (PS3) even after the lapse of a given period of time after the paper feeding is started. • The fusing loop sensor (PS2) is not turned ON (unblocked) even after the lapse of a given period of time after the paper has turned ON (unblocked) the registration sensor (PS1).
– Paper jam of a sheet of paper left at the 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 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)
• Paper exit sensor (PS3)
• Base board (BASEB)
Troubleshooting Guides: 1 Initial check items – –
2 PS1 I/O check, sensor check BASEB CN13E<A>-9 (ON) 6-C
3 PS2 I/O check, sensor check BASEB CN13E<A>-6 (ON) 6-C
4 PS3 I/O check, sensor check BASEB CN16E-15 (ON) 8-J
5 CL4 load check
• Check code: 21
• Multi code: 2
BASEB CN13E<A>-11 (ON) 7-C
6 M1 load check
• Check code: 40
• Multi code: 1, 3
BASEB CN11E-4 (REM)
BASEB CN11E-7 (LOCK)
3-C
7 BASEB F21E conduction check – –
8 Replace BASEB. – –

Code: 32-01, 32-05, 32-06
Description: Misfeed at fusing/paper exit section
32-01 The ADU paper passage sensor (PS41) is not turned ON (blocked) even after the lapse of a given period of time after the reverse sequence is started.
32-05 The paper exit sensor (PS3) is not turned OFF (blocked) even after the lapse of a given period of time after the paper has turned ON (unblocked) PS3.
32-06 The paper exit sensor (PS3) is not turned ON (unblocked) even after the lapse of a given period of time after the leading edge of the paper has turned ON (unblocked) the fusing loop sensor (PS2).
– Paper jam of a sheet of paper left at the exit section results, if the paper exit sensor (PS3) is turned ON (unblocked) when the main power switch is turned ON, a door is opened and closed, or a misfeed or malfunction is reset.
– Paper jam of a sheet of paper left at the exit section results, if a sheet of paper is determined to exist at a position detected when the main power switch is turned ON, a door is opened and closed, or a misfeed or malfunction is reset.
Causes: • Transport motor (M1)
• Paper exit/reverse motor (M4)
• ADU transport motor (M5)
• Fusing loop sensor (PS2)
• Paper exit sensor (PS3)
• ADU paper passage sensor (PS41)
• Gate switch solenoid (SD3)
• Base board (BASEB)
Troubleshooting Guides: 1 Initial check items – –
2 PS2 I/O check, sensor check BASEB CN13E<A>-6 (ON) 6-C
3 PS3 I/O check, sensor check BASEB CN16E-15 (ON) 8-J
4 PS41 I/O check, sensor check BASEB CN13E<A>-3 (ON) 6-C
5 SD3 load check
• Check code: 83
• Multi code: 0
BASEB CN17E-12 (ON) 11-J
6 M1 load check
• Check code: 40
• Multi code: 1, 3
BASEB CN11E-4 (REM)
BASEB CN11E-7 (LOCK)
3-C
7 M4 load check
• Check code: 84
• Multi code: 1, 3, 5, 7
BASEB CN14E-5 to 8 27-C
8 M5 load check
• Check code: 85
• Multi code: 1, 3, 5, 7
BASEB CN14E-1 to 4 27-C
9 BASEB F21E conduction check – –
10 Replace BASEB. – –

Code: 66-01, 66-11
Description: Misfeed at DF document switchback section (When DF-633 is installed)
66-01 The leading edge of the paper is not turned ON (unblocked) the document registration sensor (PS4) even after the lapse of a given period of time after the reverse registration operation started.
66-11 The document registration sensor (PS4) is not turned OFF (blocked) even after the lapse of a given period of time after PS4 has turned ON (unblocked) after the reverse registration operation started.
– Paper jam of a sheet of paper left at the DF document switchback 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: • Document feed motor (M1)
• Document registration clutch (CL2)
• Document registration sensor (PS4)
• DF control board (DFCB)
Troubleshooting Guides: 1 Initial check items – –
2 PS4 I/O check, sensor check DFCB CN5-11 (ON) 6-C
3 CL2 load check
• Check code: 60
• Multi code: 146
DFCB CN5-8 (REM) 6-C
4 M1 load check
• Check code: 60
• Multi code: 33, 38
DFCB CN2-1 to 4 6-G
5 Replace DFCB.

Code: 66-02, 66-12
Description: Misfeed at DF paper feed section <When DF-633 is installed>
66-02 The the leading edge of the paper does not turn ON (unblock) the document feed sensor (PS3) even after the lapse of a given period of time after the document feed clutch (CL1) has been energized.
66-12 The original size that the DF detects on the tray mismatched with the original size the main body identifies.
– Paper jam of a sheet of paper left at DF paper feed section results, if the document feed sensor (PS3) is turned ON (unblocked) when the main power switch is turned ON, a door is opened and closed, or a misfeed or malfunction is reset.
Causes: • Document transport motor (M1)
• Document feed clutch (CL1)
• Document feed sensor (PS3)
• Document length size sensor/ FD1 (PS7)
• Document length size sensor/ FD2 (PS8)
• Document width size sensor/ CD1 (PS9)
• Document width size sensor/ CD2 (PS10)
• Document width size sensor/ CD3 (PS11)
• DF control board (DFCB)
Troubleshooting Guides: 1 Initial check items – –
2 PS3 I/O check, sensor check DFCB CN4-11 (ON) 5-C
3 PS7 I/O check, sensor check DFCB CN3-9 (ON) 3-C
4 PS8 I/O check, sensor check DFCB CN3-12 (ON) 3-C
5 PS9 I/O check, sensor check DFCB CN3-15 (ON) 3-C
6 PS10 I/O check, sensor check DFCB CN3-3 (ON) 2-C
7 PS11 I/O check, sensor check DFCB CN3-6 (ON) 3-C
8 CL1 load check
• Check code: 60
• Multi code: 145
DFCB CN4-8 (REM) 4-C
9 M1 load check
• Check code: 60
• Multi code: 33, 38
DFCB CN2-1 to 4 6-G
10 Replace DFCB.

Code: 66-03, 66-13, 66-23, 66-33
Description: Misfeed at DF document transport section (When DF-633 is installed)
66-03 The document feed sensor (PS3) is not turned OFF (blocked) even after the lapse of a given period of time after PS3 has turned ON (unblocked).
66-13 The document registration sensor (PS4) is not turned ON (unblocked) even after the lapse of a given period of time after the document feed sensor (PS3) has turned ON (unblocked).
66-23 The document registration sensor (PS4) is not turned OFF (blocked) even after the lapse of a given period of time after PS4 has turned ON (unblocked).
66-33 The document reading sensor (PS5) is not turned ON even after the lapse of a given period of time after the document registration sensor (PS4) has turned ON (unblocked).
– Paper jam of a sheet of paper left at the DF document transport section results, if the document registration sensor (PS4) 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.
Causes: • Document feed motor (M1)
• Document feed clutch (CL1)
• Document registration clutch (CL2)
• Document feed sensor (PS3)
• Document registration sensor (PS4)
• Document reading sensor (PS5)
• DF control board (DFCB)
Troubleshooting Guides: 1 Initial check items – –
2 PS3 I/O check, sensor check DFCB CN4-11 (ON) 5-C
3 PS4 I/O check, sensor check DFCB CN5-11 (ON) 6-C
4 PS5 I/O check, sensor check DFCB CN5-2 (ON) 5-C
5 CL1 load check
• Check code: 60
• Multi code: 145
DFCB CN4-8 (REM) 4-C
6 CL2 load check
• Check code: 60
• Multi code: 146
DFCB CN5-8 (REM) 6-C
7 M1 load check
• Check code: 60
• Multi code: 33, 38
DFCB CN2-1 to 4 6-G
8 Replace DFCB.

Code: 66-04, 66-14
Description: Misfeed at DF document exit section (When DF-633 is installed)
66-04 The document exit sensor (PS6) is not turned ON (unblocked) even after the lapse of a given period of time after the document reading sensor (PS5) has turned ON.
66-14 The document exit sensor (PS6) is not turned OFF (blocked) even after the lapse of a given period of time after the document reading sensor (PS5) has turned OFF.
– Paper jam of a sheet of paper left at the DF document exit section results, if the document exit sensor (PS6) 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.
Causes: • Document feed motor (M1)
• Document reading sensor (PS5)
• Document exit sensor (PS6)
• DF control board (DFCB)
Troubleshooting Guides: 1 Initial check items – –
2 PS5 I/O check, sensor check DFCB CN5-2 (ON) 5-C
3 PS6 I/O check, sensor check DFCB CN5-6 (ON) 5-C
4 M1 load check
• Check code: 60
• Multi code: 33, 38
DFCB CN2-1 to 4 6-G
5 Replace DFCB.

Code: 66-05, 66-06
Description: Misfeed at DF document reading section (When DF-633 is installed)
66-05 The document reading sensor (PS5) is not turned OFF even after the lapse of a given period of time after the document registration sensor (PS4) has turned OFF (blocked).
66-06 The document reading sensor (PS5) is turned ON earlier than a given time after PS5 is turned OFF during original transportation.
– Paper jam of a sheet of paper left at the DF document reading section results, if the document reading sensor (PS5) is turned ON when the main power switch is turned ON, a door is opened and closed, or a misfeed or malfunction is reset.
Causes: • Document feed motor (M1)
• Document registration sensor (PS4)
• Document reading sensor (PS5)
• DF control board (DFCB)
Troubleshooting Guides: 1 Initial check items – –
2 Make the adjustment of original stop position. – –
3 PS4 I/O check, sensor check DFCB CN5-11 (ON) 6-C
4 PS5 I/O check, sensor check DFCB CN5-2 (ON) 5-C
5 M1 load check
• Check code: 60
• Multi code: 33, 38
DFCB CN2-1 to 4 6-G
6 Replace DFCB.

Code: 66-07
Description: Misfeed at DF document feed/transport/reading/switchback/exit section (When DF-633 is installed)
66-07 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: • Document registration sensor (PS4)
• Document reading sensor (PS5)
• Document exit sensor (PS6)
• DF control board (DFCB)
Troubleshooting Guides: 1 Initial check items – –
2 Make the adjustment of original stop position. – –
3 PS4 I/O check, sensor check DFCB CN5-11 (ON) 6-C
4 PS5 I/O check, sensor check DFCB CN5-2 (ON) 5-C
5 PS6 I/O check, sensor check DFCB CN5-6 (ON) 5-C
6 Replace DFCB.

Code: 66-54
Description: DF controller jam (When DF-633 is installed)
66-54 DF is not operation even after a lapse of a given time after the last sheet of original is fed out.
Causes: • Document feed motor (M1)
• Document feed clutch (CL1)
• Document registration clutch (CL2)
• Document feed sensor (PS3)
• Document registration sensor (PS4)
• Document reading sensor (PS5)
• Document exit sensor (PS6)
• DF control board (DFCB)
Troubleshooting Guides: 1 Initial check items – –
2 PS3 I/O check, sensor check DFCB CN4-11 (ON) 5-C
3 PS4 I/O check, sensor check DFCB CN5-11 (ON) 6-C
4 PS5 I/O check, sensor check DFCB CN5-2 (ON) 5-C
5 PS6 I/O check, sensor check DFCB CN5-6 (ON) 5-C
6 CL1 load check
• Check code: 60
• Multi code: 145
DFCB CN4-8 (REM) 4-C
7 CL2 load check
• Check code: 60
• Multi code: 146
DFCB CN5-8 (REM) 6-C
8 M1 load check
• Check code: 60
• Multi code: 33, 38
DFCB CN2-1 to 4 6-G
9 Replace DFCB. – –

Code: 72-14
Description: (1) When FS-539 or FS-539SD is installed
Misfeed at FS transport section
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: • FNS discharge motor (M3)
• 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-539/FS-539SD 16-K
3 PS16 I/O check, sensor check FSCB J9-5 (ON) FS-539/FS-539SD 11-C
4 M3 operation check FSCB J9<A>-5 to 8 FS-539/FS-539SD 12-C
5 Replace FSCB.

Code: 72-15
Description: (1) When FS-539 or FS-539SD is installed
Misfeed at FS transport section
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: • SD transport motor (M101)
• 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-539/FS-539SD 16-K
3 M101 operation check SDCB J5-8 to 11 FS-539/FS-539SD 3-L
4 Replace FSCB.

Code: 72-16
Description: (1) When FS-539 or FS-539SD is installed
Misfeed at FS transport section
The FNS entrance sensor (PS4) is not turned ON even after the lapse of a given period of time after the leading edge of the paper has turned ON (blocked) the RU entrance sensor (PS2).
Causes: • RU transport motor (M1)
• RU entrance sensor (PS2)
• FNS entrance sensor (PS4)
• FS control board (FSCB)
Troubleshooting Guides: 1 Initial check items – –
2 PS2 I/O check, sensor check FSCB J6-7 (ON) FS-539/FS-539SD 12-K
3 PS4 I/O check, sensor check FSCB J4-9 (ON) FS-539/FS-539SD 15-C
4 M1 operation check FSCB J6-1 to 4 FS-539/FS-539SD 11-K
5 Replace FSCB. – –

Code: 72-16
Description: (2) When FS-533 or FS-533+PK519 is installed
Misfeed at FS transport section
<When FS-533 is installed> The paper feed sensor (PS101) is not turned ON even after the lapse of a given period of time after the leading edge of the paper has turned OFF (unblocked) the main body’s paper exit sensor (PS3).
<When FS-533+PK-519 is installed> The paper feed sensor (PS101) is not turned ON even after the lapse of a given period of time after the leading edge of the paper has turned ON the paper feed sensor (PS201).
Causes: <When FS-533 is installed>
• Transport motor (M101)
• Paper exit sensor (PS3)
• Paper feed sensor (PS101)
• FS control board (FSCB)
• Base board (BASEB)
<When FS-533+PK-519 is installed>
• Transport motor (M101)
• Paper feed sensor (PS101)
• Paper feed sensor (PS201)
• FS control board (FSCB)
• Base board (BASEB)
Troubleshooting Guides: 1 Initial check items – –
2 PS3 I/O check, sensor check BASEB CN16E-15 (ON) 8-J
3 PS101 I/O check, sensor check FSCB CN111 FS-533 7-D to E
4 PS201 I/O check, sensor check PKCB CN204 FS-533 (PK-519) 5-C
5 M101 operation check FSCB CN101 FS-533 6-J
6 FSCB CP101 conduction check – –
7 Replace FSCB. – –
8 Replace BASEB.

Code: 72-17
Description: (1) When FS-539 or FS-539SD is installed
Misfeed at FS transport section
The FNS entrance sensor (PS4) is not turned OFF even after the lapse of a given period of time after the leading edge of the paper has turned ON PS4.
Causes: • FNS entry transport motor (M2)
• FNS entrance sensor (PS4)
• FS control board (FSCB)
Troubleshooting Guides: 1 Initial check items – –
2 PS4 I/O check, sensor check FSCB J4-9 (ON) FS-539/FS-539SD 15-C
3 M2 operation check FSCB J9<A>-1 to 4 FS-539/FS-539SD 12-C
4 Replace FSCB.

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

Code: 72-18
Description: (1) When FS-539 or FS-539SD is installed
Misfeed at FS transport section
• The main tray exit sensor (PS16) is not turned ON even after the lapse of a given period of time after the leading edge of the paper has turned ON the FNS entrance sensor (PS4).
• While the buffer is controlled, the main tray exit sensor (PS16) is not tuned ON even after the lapse of a given period of time after the reverse rotation drive is started.
Causes: • FNS entry transport motor (M2)
• FNS entrance sensor (PS4)
• Main tray exit sensor (PS16)
• FS control board (FSCB)
Troubleshooting Guides: 1 Initial check items – –
2 PS4 I/O check, sensor check FSCB J4-9 (ON) FS-539/FS-539SD 15-C
3 PS16 I/O check, sensor check FSCB J9-5 (ON) FS-539/FS-539SD 11-C
4 M2 operation check FSCB J9<A>-1 to 4 FS-539/FS-539SD 12-C
5 Replace FSCB. – –

Code: 72-19
Description: (1) When FS-539 or FS-539SD is installed
Misfeed at FS transport section
The main tray exit sensor (PS16) is not turned OFF even after the lapse of a given period of time after the leading edge of the paper has turned ON PS16.
Causes: • FNS discharge motor (M3)
• Main tray exit sensor (PS16)
• FS control board (FSCB)
Troubleshooting Guides: 1 Initial check items – –
2 PS16 I/O check, sensor check FSCB J9-5 (ON) FS-539/FS-539SD 11-C
3 M3 operation check FSCB J9<A>-5 to 8 FS-539/FS-539SD 12-C
4 Replace FSCB.

Code: 72-21
Description: (1) When FS-539 or FS-539SD is installed
Misfeed at FS transport section
The alignment tray paper detection sensor (PS31) is not turn OFF even after the set period of time has elapsed after the start of exiting paper.
Causes: • Pre-eject drive motor (M9)
• Alignment tray paper detection sensor (PS31)
• FS control board (FSCB)
Troubleshooting Guides: 1 Initial check items – –
2 PS31 I/O check, sensor check FSCB J12-11 (ON) FS-539/FS-539SD 7-C
3 M9 operation check FSCB J13-3 to 4 FS-539/FS-539SD 17-C
4 Replace FSCB.

Code: 72-21
Description: (2) When FS-533 is installed
Misfeed at FS transport section
The paper surface detect sensor/1 (PS102) is not turned OFF (unblocked) after the paper exit.
Causes: • Paper exit motor (M102)
• Paper surface detect sensor/1 (PS102)
• FS control board (FSCB)
Troubleshooting Guides: 1 Initial check items – –
2 PS102 I/O check, sensor check FSCB CN102 FS-533 6-J
3 M102 operation check FSCB CN109 FS-533 8 to 9-D to E
4 FSCB CP102 conduction check – –
5 Replace FSCB.

Code: 72-22
Description: (1) When FS-539 or FS-539SD is installed
Misfeed at FS transport section
The sub tray exit sensor (PS8) is not turned ON (blocked) even after the lapse of a given period of time after the paper reaches the paper transport acceleration point.
Causes: • FNS entry transport motor (M2)
• Sub tray exit sensor (PS8)
• FS control board (FSCB)
Troubleshooting Guides: 1 Initial check items – –
2 PS8 I/O check, sensor check FSCB J9-9 (ON) FS-539/FS-539SD 11-C
3 M2 operation check FSCB J9<A>-1 to 4 FS-539/FS-539SD 12-C
4 Replace FSCB. – –

Code: 72-23
Description: (1) When FS-539 or FS-539SD is installed
Misfeed at FS transport section
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: • FNS discharge motor (M3)
• 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 J9-9 (ON) FS-539/FS-539SD 11-C
4 M3 operation check FSCB J9<A>-5 to 8 FS-539/FS-539SD 12-C
5 Replace FSCB.

Code: 72-25
Description: (1) When FS-539SD is installed
Misfeed at SD paper exit section
The fold exit sensor (PS112) is not turned ON by the paper even after the lapse of a given period of time after the half-fold exit operation started.
Causes: • Center fold roller motor (M105)
• Fold exit sensor (PS112)
• SD control board (SDCB)
• FS control board (FSCB)
Troubleshooting Guides: 1 Initial check items – –
2 PS112 I/O check, sensor check SDCB J9-2 (ON) FS-539/FS-539SD 5-P
3 M105 operation check SDCB J11-1 to 10 FS-539/FS-539SD 3-L
4 Replace SDCB. – –
5 Replace FSCB.

Code: 72-26
Description: (1) When FS-539SD is installed
Misfeed at SD paper exit section
The fold exit sensor (PS112) is not turned OFF even after the lapse of a given period of time after the leading edge of the paper has turned ON PS112.
Causes: • Center fold roller motor (M105)
• Fold exit sensor (PS112)
• SD control board (SDCB)
• FS control board (FSCB)
Troubleshooting Guides: 1 Initial check items – –
2 PS112 I/O check, sensor check SDCB J9-2 (ON) FS-539/FS-539SD 5-P
3 M105 operation check SDCB J11-1 to 10 FS-539/FS-539SD 3-L
4 Replace SDCB. – –
5 Replace FSCB.

Code: 72-43
Description: (1) When FS-539+PK-524 or FS-539SD+PK-524 is installed
Misfeed at PK section
The punch position sensor (PS2) is not turned ON (unblocked) after a lapse of a given time after the punch drive motor (M1) starts rotating.
Causes: • Punch drive motor (M1)
• Punch position sensor (PS2)
• FS control board (FSCB)
Troubleshooting Guides: 1 Initial check items – –
2 PS2 I/O check, sensor check FSCB J7-2 (ON) FS-539/FS-539SD (PK-524) 13-K
3 M1 operation check FSCB J7-7 to 8 FS-539/FS-539SD (PK-524) 13-K
4 Replace FSCB.

Code: 72-43
Description: (2) When FS-533+PK-519 is installed
Misfeed at PK section
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.
Causes: • Punch motor (M201)
• Punch motor sensor (PS202)
• PK control board (PKCB)
• FS control board (FSCB)
Troubleshooting Guides: 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. – –

Code: 72-70
Description: (1) When FS-533+PK-519 is installed
Misfeed at PK section
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: • Transport motor (M1)
• Transport 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 M1 operation check BASEB CN11E-4 to 7 3-C
4 M101 operation check FSCB CN101 FS-533 6-J
5 Replace FSCB.

Code: 72-75
Description: (1) When FS-539 or FS-539SD is installed
Misfeed at FS paper exit section
The upper paddle home sensor (PS14) is not turned ON (unblocked) even after the set period of time has elapsed after the FNS paddle motor (M5) is energized at the time other than the initial operation.
Causes: • FNS paddle motor (M5)
• Upper paddle home sensor (PS14)
• FS control board (FSCB)
Troubleshooting Guides: 1 Initial check items – –
2 PS14 I/O check, sensor check FSCB J4-7 (ON) FS-539/FS-539SD 15-C
3 M5 operation check FSCB J4<A>-12 to 15 FS-539/FS-539SD 14-C
4 Replace FSCB.

Code: 72-76
Description: (1) When FS-539 or FS-539SD is installed
Misfeed at FS paper exit section
The gripper home sensor (PS18) or gripper position sensor (PS19) is not turned ON (blocked) or OFF (unblocked) even after the set period of time has elapsed after the bundle eject motor (M10) is energized at the time other than the initial operation.
Causes: • Bundle eject motor (M10)
• Gripper home sensor (PS18)
• Gripper position sensor (PS19)
• FS control board (FSCB)
Troubleshooting Guides: 1 Initial check items – –
2 PS18 I/O check, sensor check FSCB J13-13 (ON) FS-539/FS-539SD 16-C
3 PS19 I/O check, sensor check FSCB J12-3 (ON) FS-539/FS-539SD 8-C
4 M10 operation check FSCB J13-1 to 2 FS-539/FS-539SD 17-C
5 Replace FSCB.

Code: 72-77
Description: (1) When FS-539 or FS-539SD is installed
Misfeed at FS paper exit section
The alignment home sensor (PS12/PS13) is not turned OFF (unblocked) even after the set period of time has elapsed after the alignment motor (M7/M8) is energized at the time other than the initial operation.
Causes: • Alignment motor/Fr (M7)
• Alignment motor/Rr (M8)
• Alignment plate home sensor/Fr (PS12)
• Alignment plate home sensor/Rr (PS13)
• FS control board (FSCB)
Troubleshooting Guides: 1 Initial check items – –
2 PS12 I/O check, sensor check FSCB J4-4 (ON) FS-539/FS-539SD 14-C
3 PS13 I/O check, sensor check FSCB J9-12 (ON) FS-539/FS-539SD 10-C
4 M7 operation check FSCB J4<A>-5 to 8 FS-539/FS-539SD 13 to 14-C
5 M8 operation check FSCB J12-13 to 16 FS-539/FS-539SD 7-C
6 Replace FSCB.

Code: 72-81
Description: (1) When FS-539 or FS-539SD is installed
Misfeed at FS staple section
The stapler home sensor does not turn ON even after the lapse of a given period of time after the stapler motor is energized.
Causes: • Stapler unit
• FS control board (FSCB)
Troubleshooting Guides: 1 Initial check items – –
2 Replace the stapler unit. – –
3 Replace FSCB. – –

Code: 72-81
Description: (2) When FS-533 is installed
Misfeed at FS staple section
The stapler home sensor (PS110) is not turned ON (blocked) after the stapler motor is energized.
Causes: • Stapler home sensor (PS110)
• Stapler unit
• Stapler relay board (STREYB)
• FS control board (FSCB)
Troubleshooting Guides: 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 STREYB. – –
5 Replace FSCB.

Code: 72-84
Description: (1) When FS-539SD is installed
Misfeed at SD staple section
The stapler home position sensor/Rr does not turn ON even after the lapse of a given period of time after the staple operation started.
Causes: • Stapler unit
• SD control board (SDCB)
• FS control board (FSCB)
Troubleshooting Guides: 1 Initial check items – –
2 Replace the stapler unit. – –
3 Replace SDCB. – –
4 Replace FSCB. – –

Quick fix Konica-Minolta C257i list error codes

Solve Konica-Minolta bizhub C257i Error codes

Code: 72-85
Description: (1) When FS-539SD is installed
Misfeed at SD transport section
The SD entrance sensor (PS101) is not turned ON (blocked) even after the lapse of a given period of time after the leading edge of the paper has turned ON the saddle exit sensor (PS5).
Causes: • SD entrance sensor (PS101)
• Saddle exit sensor (PS5)
• SD control board (SDCB)
• FS control board (FSCB)
Troubleshooting Guides: 1 Initial check items – –
2 PS5 I/O check, sensor check FSCB J5-2 (ON) FS-539/FS-539SD 16-K
3 PS101 I/O check, sensor check SDCB J4-3 (ON) FS-539/FS-539SD 5-L
4 Replace SDCB. – –
5 Replace FSCB. – –

Code: 72-86
Description: (1) When FS-539SD is installed
Misfeed at SD transport section
The SD entrance sensor (PS101) 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) PS101.
Causes: • SD transport motor (M101)
• SD entrance sensor (PS101)
• SD control board (SDCB)
• FS control board (FSCB)
Troubleshooting Guides: 1 Initial check items – –
2 PS101 I/O check, sensor check SDCB J4-3 (ON) FS-539/FS-539SD 5-L
3 M101 operation check SDBC J5-8 to 11 FS-539/FS-539SD 3-L
4 Replace SDCB. – –
5 Replace FSCB. – –

Code: 72-87
Description: (1) When FS-539SD is installed
Misfeed at SD transport section
The center staple/fold stacker paper detect sensor (PS103) is not turned ON even after the lapse of a given period of time after the leading edge of the paper has turned ON the SD entrance sensor (PS101).
Causes: • SD transport motor (M101)
• SD entrance sensor (PS101)
• Center staple/fold stacker paper detect sensor (PS103)
• SD control board (SDCB)
• FS control board (FSCB)
Troubleshooting Guides: 1 Initial check items – –
2 PS101 I/O check, sensor check SDCB J4-3 (ON) FS-539/FS-539SD 5-L
3 PS103 I/O check, sensor check SDCB J7-12 (ON) FS-539/FS-539SD 5-P
4 M101 operation check SDBC J5-8 to 11 FS-539/FS-539SD 3-L
5 Replace SDCB. – –
6 Replace FSCB.

Code: 75-42
Description: (1) When FS-539 or FS-539SD is installed
Misfeed at RU section
The RU entrance sensor (PS2) is not turned ON (blocked) even after the lapse of a given period of time after the leading edge of the paper has turned OFF (unblocked) the main body’s paper exit sensor (PS3).
Causes: • RU transport motor (M1)
• Paper exit sensor (PS3)
• RU entrance sensor (PS2)
• FS control board (FSCB)
Troubleshooting Guides: 1 Initial check items – –
2 PS3 I/O check, sensor check BASEB CN16E-15 (ON) 8-J
3 PS2 I/O check, sensor check FSCB J6-7 (ON) FS-539/FS-539SD 12-K
4 M1 operation check FSCB J6-1 to 4 FS-539/FS-539SD 11-K
5 FSCB F2 conduction check – –
6 Replace FSCB. – –

Code: 75-43
Description: (1) When FS-539 or FS-539SD is installed
Misfeed at RU section
The RU entrance sensor (PS2) is not turned OFF (unlocked) even after the lapse of a given period of time after PS2 is turned ON (blocked).
Causes: • RU transport motor (M1)
• RU entrance sensor (PS2)
• FS control board (FSCB)
Troubleshooting Guides: 1 Initial check items – –
2 PS2 I/O check, sensor check FSCB J6-7 (ON) FS-539/FS-539SD 12-K
3 M1 operation check FSCB J6-1 to 4 FS-539/FS-539SD 11-K
4 FSCB F2 conduction check – –
5 Replace FSCB. – –

Code: 92-01, 92-02, 92-40
Description: Misfeed at duplex pre-registration section
92-01 The registration sensor (PS1) is not turned ON (unblocked) even after the lapse of a given period of time after a duplex paper feed sequence has been started.
92-02 For the second-side feed of paper in the duplex mode, loop forming has not been complete before the second side of a sheet enters the registration roller because the rise timing of load to perform registration is earlier than the rise timing of load to form a loop.
92-40 For the second-side feed of paper in the duplex mode, the image write start signal permit continues to be disabled for a predetermined period of time after the timing of the image write start signal output.
– Paper jam of a sheet of paper left at the duplex pre-registration section results, if a sheet of paper is determined to exist at a position detected when the main power switch is turned ON, a door is opened and closed, or a misfeed or malfunction is reset.
Causes: • ADU transport motor (M5)
• Registration sensor (PS1)
• Base board (BASEB)
Troubleshooting Guides: 1 Initial check items – –
2 PS1 I/O check, sensor check BASEB CN13E<A>-9 (ON) 6-C
3 M5 load check
• Check code: 85
• Multi code: 1, 3, 5, 7
BASEB CN14E-1 to 4 27-C
4 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)
Paper is not taken up and fed in even with a print start command received. The job is not started even with a print start command received.
Causes:
Troubleshooting Guides: 1 Initial check items – –
2 Open and close the front door of the main body. – –

Code: 99-06
Description: Controller JAM (print control on the main body is not completed)
The print control does not complete even after a lapse of a given time after a print command has been received.
Causes:
Troubleshooting Guides: 1 Initial check items – –
2 Open and close the front door of the main body. – –

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

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

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

Code: C0002
Description: (1) When PC-118 or PC-218 is installed
Paper feed communication error
When the base board (BASEB) is receiving data, a communication error is detected.
Causes: • CPU board (CPUB)
• Base board (BASEB)
• PC control board (PCCB)
Troubleshooting Guides: 1. Turn OFF the main power switch and unplug the power cord. Connect the power cord after 15 sec. or more, and turn ON the main power switch.
2. Correct or replace the harness connection between the main body and the paper feed cabinet if faulty.
3. Rewrite the firmware.
4. Replace PCCB.
5. Replace CPUB.
6. Replace BASEB.

Code: C0002
Description: (2) When PC-418 is installed
Paper feed communication error
When the base board (BASEB) is receiving data, a communication error is detected.
Causes: • CPU board (CPUB)
• Base board (BASEB)
• PC control board (PCCB)
Troubleshooting Guides: 1. Turn OFF the main power switch and unplug the power cord. Connect the power cord after 15 sec. or more, and turn ON the main power switch.
2. Correct or replace the harness connection between the main body and the paper feed cabinet if faulty.
3. Rewrite the firmware.
4. Replace PCCB.
5. Replace CPUB.
6. Replace BASEB.

Code: C0106
Description: (1) When PC-118 or PC-218 is installed
Tray 3 paper feed motor turning at abnormal timing
• The motor lock signal remains HIGH for a predetermined continuous period of time while the motor is turning.
• The motor lock signal remains LOW for a predetermined continuous period of time while the motor remains stationary.
Causes: • Tray 3 paper feed motor (M111)
• PC control board (PCCB)
Troubleshooting Guides: 1. Check the connector between M111-PCCB CN5 for proper connection and correct as necessary.
2. Check the connector of M111 for proper drive coupling and correct as necessary.
3. M111 load check
• Check code: 28
• Multi code: 9,11
• Control signal: PCCB CN5-5 (CW/CCW)
• Location of electrical component: PC-118/PC-218 4-C
4. Replace M111.
5. Replace PCCB.

Code: C0106
Description: (2) When PC-418 is installed
LCT paper feed motor turning at abnormal timing
• The motor lock signal remains HIGH for a predetermined continuous period of time while the motor is turning.
• The motor lock signal remains LOW for a predetermined continuous period of time while the motor remains stationary.
Causes: • Paper feed motor (M131)
• PC control board (PCCB)
Troubleshooting Guides: 1. Check the connector between M131-PCCB CN5 for proper connection and correct as necessary.
2. Check the connector of M131 for proper drive coupling and correct as necessary.
3. M131 load check
• Check code: 28
• Multi code: 1,3
• Control signal: PCCB CN5-5 (CW/CCW)
• Location of electrical component: PC-418 5-J
4. Replace M131.
5. Replace PCCB.

Code: C0107
Description: (1) When PC-118 or PC-218 is installed
Tray 3 vertical transport motor turning at abnormal timing
• The motor lock signal remains HIGH for a predetermined continuous period of time while the motor is turning.
• The motor lock signal remains LOW for a predetermined continuous period of time while the motor remains stationary.
Causes: • Tray 3 vertical transport motor (M112)
• PC control board (PCCB)
Troubleshooting Guides: 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: 17,19
• Control signal: PCCB CN5-13 (CW/CCW)
• Location of electrical component: PC-118/PC-218 3 to 4-C
4. Replace M112.
5. Replace PCCB.

Code: C0107
Description: (2) When PC-418 is installed
LCT vertical transport motor turning at abnormal timing
• The motor lock signal remains HIGH for a predetermined continuous period of time while the motor is turning.
• The motor lock signal remains LOW for a predetermined continuous period of time while the motor remains stationary.
Causes: • Vertical transport motor (M132)
• PC control board (PCCB)
Troubleshooting Guides: 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: 5,7
• Control signal: PCCB CN5-13 (CW/CCW)
• Location of electrical component: PC-418 4-J
4. Replace M132.
5. Replace PCCB.

Code: C0108
Description: Tray 4 paper feed motor turning at abnormal timing (When PC-218 is installed)
• The motor lock signal remains HIGH for a predetermined continuous period of time while the motor is turning.
• The motor lock signal remains LOW for a predetermined continuous period of time 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: 13,15
• Control signal: PCCB CN9C-5 (CW/CCW)
• Location of electrical component: PC-218 6-K
4. Replace M121.
5. Replace PCCB.

Code: C0109
Description: Tray 4 vertical transport motor turning at abnormal timing (When PC-218 is installed)
• The motor lock signal remains HIGH for a predetermined continuous period of time while the motor is turning.
• The motor lock signal remains LOW for a predetermined continuous period of time 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: 21,23
• Control signal: PCCB CN9C-13 (CW/CCW)
• Location of electrical component: PC-218 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-BASEB CN7E 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 CN53-BASEB CN5E 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 CN5E<A>-9 (ON)
• Location of electrical component: 9-C
7. M12 load check
• Check code: 23
• Multi code: 4
• Control signal: BASEB CN7E<A>-11 to 12
• Location of electrical component: 24-C
8. Replace M12.
9. Replace CPUB.
10. Replace BASEB.

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-BASEB CN7E 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 CN55-BASEB CN5E 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 CN5E-9 (ON)
• Location of electrical component: 11-C
7. M13 load check
• Check code: 23
• Multi code: 5
• Control signal: BASEB CN7E<A>-13 to 14
• Location of electrical component: 23-C
8. Replace M13.
9. Replace CPUB.
10. Replace BASEB.

Code: C0206
Description: Tray 3 lift-up failure (When PC-118 or PC-218 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-118/PC-218 7-C
7. M113 load check
• Check code: 23
• Multi code: 6
• Control signal: PCCB CN6C-8 to 9
• Location of electrical component: PC-118/PC-218 2-C
8. Replace M113.
9. Replace PCCB.
10. Replace CPUB.
11. Replace BASEB.

Code: C0208
Description: Tray 4 lift-up failure (When PC-218 is installed)
The tray 4 upper limit sensor (PS126) is not turned ON (blocked) even after the set period of time has elapsed after the paper lift-up operation for the drawer began.
Causes: • Tray 4 lift-up motor (M123)
• Tray 4 upper limit sensor (PS126)
• PC control board (PCCB)
• CPU board (CPUB)
• Base board (BASEB)
Troubleshooting Guides: 1. Remove the tray and check to see if a piece of paper is not left inside the machine.
2. Check the connector between M123-PCCB CN8C for proper connection and correct as necessary.
3. Check the connector of M123 for proper drive coupling and correct as necessary.
4. Check the connector between PS126-relay CN47-PCCB CN7C for proper connection and correct as necessary.
5. Check CPUB for proper installation and correct as necessary.
6. PS126 I/O check, sensor check
• Control signal: PCCB CN7C-3 (ON)
• Location of electrical component: PC-218 8-K
7. M123 load check
• Check code: 23
• Multi code: 7
• Control signal: PCCB CN8C-8 to 9
• Location of electrical component: PC-218 5-K
8. Replace M123.
9. Replace PCCB.
10. Replace CPUB.
11. Replace BASEB.

Code: C0210
Description: LCT lift failure (When PC-418 is installed)
• The main tray upper limit sensor (PS136) is not turned ON (blocked) even after the set period of time has elapsed after the paper lift-up operation for the main tray began.
• The shifter stop / lower limit position sensor (PS138) is not turned OFF (unblocked) even after the set period of time has elapsed after the paper lift-up operation for the drawer began.
• The main tray upper limit sensor (PS136) is not turned ON (blocked) even after the set period of time has elapsed after the paper lift-up operating.
• The main tray upper limit sensor (PS136) is not turned OFF (unblocked) even after the set period of time has elapsed after the paper lift-down operation began.
• The shifter stop / lower limit position sensor (PS138) is not turned ON (blocked) even after the set period of time has elapsed after the paper lift-down operation began.
Causes: • Main tray upper limit sensor (PS136)
• Shifter stop / lower limit position sensor (PS138)
• Elevator motor (M134)
• PC control board (PCCB)
Troubleshooting Guides: 1. Remove the tray and check to see if a piece of paper is not left inside the machine.
2. Check the connector between M134-PCCB CN10L for proper connection and correct as necessary.
3. Check the connector of M134 for proper drive coupling and correct as necessary.
4. Check the connector between PS136-relay CN1-PCCB CN4 for proper connection and correct as necessary.
5. Check the connector between PS138-relay CN16-PCCB CN14L for proper connection and correct as necessary.
6. PS136 I/O check, sensor check
• Control signal: PCCB CN4-3 (ON)
• Location of electrical component: PC-418 8-J
7. PS138 I/O check, sensor check
• Control signal: PCCB CN14L-6 (ON)
• Location of electrical component: PC-418 4-J
8. M134 load check
• Check code: 23
• Multi code: 9, 10
• Control signal: PCCB CN8C-8 to 9
• Location of electrical component: PC-418 5-K
9. Replace M134.
10. Replace PCCB.

Code: C0211
Description: Manual feed up/down abnormality
• The bypass tray lift-up position sensor (PS26) is not turned OFF (unblock) even after the transport motor (M1) rotates for a given period of time after the position is switched from stand by position at lift-up plate to the feed position.
• The bypass lift-up position sensor (PS26) is not turned ON (blocked) even after the transport motor (M1) rotates for a given period of time after the position is switched from stand by position at lift-up plate to the feed position.
Causes: • Transport motor (M1)
• Bypass pick-up solenoid (SD1)
• Bypass tray lift-up position sensor (PS26)
• CPU board (CPUB)
• Base board (BASEB)
Troubleshooting Guides: 1. Check the connector between M1-BASEB CN11E for proper connection and correct as necessary.
2. Check the connector of M1 for proper drive coupling and correct as necessary.
3. Check the connector between PS26-relay CN50-BASEB CN30E for proper connection and correct as necessary.
4. Check the connector between SD1-relay CN123-relay CN50-BASEB CN30E for proper connection and correct as necessary.
5. Check CPUB for proper installation and correct as necessary.
6. PS26 I/O check, sensor check
• Control signal: BASEB CN30E-7 (ON)
• Location of electrical component: 13-C
7. SD1 load check
• Check code: 23
• Multi code: 3
• Control signal: BASEB CN30E-4 (ON)
• Location of electrical component: 13-C
8. M1 load check
• Check code: 40
• Multi code: 1,3
• Control signal: BASEB CN11E-4 (REM), BASEB CN11E-7 (FGP)
• Location of electrical component: 3-C
9. Replace M1.
10. Replace CPUB.
11. Replace BASEB.

Code: C0214
Description: LCT shift failure (When PC-418 is installed)
• The paper removal method and proper paper load method continuously appear on the control panel three times.
• The shifter stop / lower limit position sensor (PS138) is not turned ON (blocked) even after the set period of time has elapsed after the shift operation began (shift to the right).
• The shifter home sensor (PS139) is not turned OFF (unblocked) even after the set period of time has elapsed after the shift operation began (shift to the right).
• The shifter stop / lower limit position sensor (PS138) is not turned OFF (unblocked) even after the set period of time has elapsed after the return operation began (shift to the left).
• The shifter home sensor (PS139) is not turned ON (blocked) even after the set period of time has elapsed after the return operation began (shift to the left).
Causes: • Shifter stop / lower limit position sensor (PS138)
• Shifter home sensor (PS139)
• Shifter motor (M133)
• PC control board (PCCB)
Troubleshooting Guides: 1. Check if paper is loaded properly.
2. Remove the tray and check to see if a piece of paper is not left inside the machine.
3. Check the connector between M133-PCCB CN10L for proper connection and correct as necessary.
4. Check the connector of M133 for proper drive coupling and correct as necessary.
5. Check the connector between PS138-relay CN16-PCCB CN14L for proper connection and correct as necessary.
6. Check the connector between PS139-relay CN16-PCCB CN14L for proper connection and correct as necessary.
7. PS138 I/O check, sensor check
• Control signal: PCCB CN14L-6 (ON)
• Location of electrical component: PC-418 4-J
8. PS139 I/O check, sensor check
• Control signal: PCCB CN14L-3 (ON)
• Location of electrical component: PC-418 4-J
9. M133 load check
• Check code: 23
• Multi code: 11, 12
• Control signal: PCCB CN10L-3 to 4
• Location of electrical component: PC-418 6-J
10. Replace M133.
11. Replace PCCB.

Code: C1004, C1014
Description: (1) When FS-533 is installed
• C1004: Finisher communication error (Engine detection)
• C1014: Finisher communication error (Finisher detection)
When a communication error is detected between the base board (BASEB) and the FS control board (FSCB).
Causes: • FS control board (FSCB)
• 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 FSCB.
4. Replace BASEB.

Code: C1004, C1014
Description: (2) When FS-539 or FS-539SD is installed
• C1004: Finisher communication error (Engine detection)
• C1014: Finisher communication error (Finisher detection)
When a communication error is detected between the base board (BASEB) and the FS control board (FSCB).
Causes: • FS control board (FSCB)
• 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 FSCB.
4. Replace BASEB.

Code: C1004, C1014
Description: (3) When JS-506 is installed
• C1004: Finisher communication error (Engine detection)
• C1014: Finisher communication error (Finisher detection)
When a communication error is detected between the base board (BASEB) and the JS control board (JSCB).
Causes: JS control board (JSCB)
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 JSCB.

Code: C1081, C1082
Description: (1) When FS-539SD is installed
• C1081: SD communication error (Finisher detection)
• C1082: SD communication error (SD detection)
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: (1) When FS-533 is installed
Tray lift up motor drive malfunction
• 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 energized.
• 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 energized.
Causes: • Tray lift up motor (M109)
• Paper exit tray home sensor (PS107)
• FS control board (FSCB)
Troubleshooting Guides: 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.

Code: C1102
Description: (2) When FS-539 or FS-539SD is installed
Main tray up/down motor drive malfunction
• While the exit tray is being lifted, the main tray upper position sensor (PS26/PS27) or main tray empty sensor (PS39) is not turned ON (blocked) after the set period of time has elapsed after the main tray up/ down motor (M11) is energized.
• While the exit tray is being lowered, the main tray full sensor (PS29) is not turned ON (blocked) after the set period of time has elapsed after the main tray up/down motor (M11) is energized.
Causes: • Main tray up/down motor (M11)
• Main tray upper position sensor/Rr (PS26)
• Main tray upper position sensor/Fr (PS27)
• Main tray full sensor (PS29)
• Main tray empty sensor (PS39)
• FS control board (FSCB)
Troubleshooting Guides: 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 PS39-relay CN1-FSCB J14 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-539/FS-539SD 2-C
8. PS27 I/O check, sensor check
• Control signal: FSCB J14<A>-15 (ON)
• Location of electrical component: FS-539/FS-539SD 2-C
9. PS29 I/O check, sensor check
• Control signal: FSCB J14-11 (ON)
• Location of electrical component: FS-539/FS-539SD 3-C
10. PS39 I/O check, sensor check
• Control signal: FSCB J14-8 (ON)
• Location of electrical component: FS-539/FS-539SD 3-C
11. M11 operation check
• Control signal: FSCB J9<A>-9 to 14
• Location of electrical component: FS-539/FS-539SD 12-C
12. Replace M11.
13. FSCB F3 or F9 conduction check.
14. Replace FSCB.

Code: C1103
Description: (1) When FS-533 is installed
Alignment motor/Fr drive malfunction
• The alignment plate home sensor/Fr (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 energized when the plate returned to the home position.
Causes: • Alignment motor/Fr (M105)
• Alignment plate home sensor/Fr (PS108)
• FS control board (FSCB)
Troubleshooting Guides: 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.

Code: C1103
Description: (2) When FS-539 or FS-539SD is installed
Alignment motor/Fr drive malfunction
• The alignment plate home sensor/Fr (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 home sensor/Fr (PS12) is not turned ON (blocked) after the set period of time has elapsed after the alignment motor/Fr (M7) is energized when the plate returned to the home position.
• The alignment plate/Fr does not reach the specified position within the set period of time.
Causes: • Alignment motor/Fr (M7)
• Alignment plate home sensor/Fr (PS12)
• FS control board (FSCB)
Troubleshooting Guides: 1. Check the connector between M7-relay CN13-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-539/FS-539SD 14-C
5. M7 operation check
• Control signal: FSCB J4<A>-5 to 8
• Location of electrical component: FS-539/FS-539SD 13 to 14-C
6. Replace M7.
7. Replace FSCB.

Code: C1105
Description: (1) When FS-539 or FS-539SD is installed
Bundle eject motor drive malfunction
The gripper home sensor (PS18) is not turned OFF (blocked) or ON (unblocked) even after the set period of time has elapsed after the bundle eject motor (M10) is energized.
Causes: • Bundle eject motor (M10)
• Gripper home sensor (PS18)
• FS control board (FSCB)
Troubleshooting Guides: 1. Check the connector between M10-relay CN7A-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 CN7A-FSCB J13 for proper connection and correct as necessary.
4. PS18 I/O check, sensor check
• Control signal: FSCB J13-13 (ON)
• Location of electrical component: FS-539/FS-539SD 16-C
5. M10 operation check
• Control signal: FSCB J13-1 to 2
• Location of electrical component: FS-539/FS-539SD 17-C
6. Replace M10.
7. FSCB F8 conduction check
8. Replace FSCB.

Code: C1106
Description: (1) When FS-533 is installed
Stapler movement motor drive malfunction
• The stapler home sensor (PS110) is not turned OFF (unblocked) after the set period of time has elapsed after the stapler drive starts from the home position.
• The stapler home sensor (PS110) is not turned ON (blocked) after the set period of time has elapsed after the stapler movement motor (M107) is energized when the stapler returned to the home position.
Causes: • Stapler movement motor (M107)
• Stapler home sensor (PS110)
• Stapler relay board (STRYB)
• FS control board (FSCB)
Troubleshooting Guides: 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.

Code: C1106
Description: (2) When FS-539 or FS-539SD is installed
Stapler movement motor drive malfunction
• The stapler home sensor (PS35) is not turned OFF (unblocked) after the set period of time has elapsed after the stapler drive starts from the home position.
• The stapler home sensor (PS35) is not turned ON (blocked) after the set period of time has elapsed after the stapler movement motor (M13) is energized when the stapler returned to the home position.
• The stapler does not reach the specified position within the set period of time.
Causes: • Stapler movement motor (M13)
• Stapler home sensor (PS35)
• FS control board (FSCB)
Troubleshooting Guides: 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 PS35-relay CN18-FSCB J21 for proper connection and correct as necessary.
4. PS35 I/O check, sensor check
• Control signal: FSCB J21-6 (ON)
• Location of electrical component: FS-539/FS-539SD 6-C
5. M13 operation check
• Control signal: FSCB J11<A>-1 to 4
• Location of electrical component: FS-539/FS-539SD 4-C
6. Replace M13.
7. FSCB F8 or F10 conduction check
8. Replace FSCB.

Code: C1109
Description: (1) When FS-533 is installed
Stapler motor drive malfunction
The stapler home sensor (PS110) is not turned ON (blocked) even after the set period of time has elapsed after the stapler motor is energized.
Causes: • Stapler unit
• Stapler home sensor (PS110)
• Stapler relay board (STRYB)
• FS control board (FSCB)
Troubleshooting Guides: 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.

Code: C1109
Description: (2) When FS-539 or FS-539SD is installed
Stapler motor drive malfunction
• The stapler sensor is not turned OFF or ON even after the set period of time has elapsed after the stapler motor is energized.
• The stapler center position sensor (PS24) is turned ON (blocked), when the stapler motor is running.
Causes: • Stapler unit
• Stapler center position sensor (PS24)
• FS control board (FSCB)
Troubleshooting Guides: 1. Check the connector between the stapler unit-relay CN6-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 PS24-relay CN3-FSCB J11 for proper connection and correct as necessary.
4. PS24 I/O check, sensor check
• Control signal: FSCB J11-6 (ON)
• Location of electrical component: FS-539/FS-539SD 5-C
5. Replace the stapler unit.
6. Replace FSCB.

Code: C1112
Description: (1) When FS-539SD is installed
Stapler motor malfunction
• The stapler home sensor is not turned ON even after the set period of time has elapsed while the stapler motor is energized.
• The stapler home sensor is not turned OFF even after the set period of time has elapsed after the stapler home sensor is turned ON.
Causes: • Stapler unit
• SD control board (SDCB)
• FS control board (FSCB)
Troubleshooting Guides: 1. Check the connector between the stapler unit-SDCB J4 for proper connection and correct as necessary.
2. Check the connector of the stapler unit for proper drive coupling and correct as necessary.
3. Replace the stapler unit.
4. Replace SDCB.
5. Replace FSCB.

Code: C1113
Description: (1) When FS-539SD is installed
Stopper drive motor malfunction
The stopper home sensor (PS106) is not turned OFF (unblocked) or ON (blocked) even after the set period of time has elapsed after the stopper drive motor (M104) is energized.
Causes: • Stopper drive motor (M104)
• Stopper home sensor (PS106)
• SD control board (SDCB)
• FS control board (FSCB)
Troubleshooting Guides: 1. Check the connector between M104-SDCB J10 for proper connection and correct as necessary.
2. Check the connector of M104 for proper drive coupling and correct as necessary.
3. Check the connector between PS106-SDCB J10 for proper connection and correct as necessary.
4. PS106 I/O check, sensor check
• Control signal: SDCB J10-5 (ON)
• Location of electrical component: FS-539/FS-539SD 2-P
5. M104 operation check
• Control signal: SDCB J10-6 to 9
• Location of electrical component: FS-539/FS-539SD 2-P
6. Replace M104.
7. Replace SDCB.
8. Replace FSCB.

Code: C1114
Description: (1) When FS-539SD is installed
Alignment motor drive malfunction
The alignment home sensor (PS104) is not turned OFF (unblocked) or ON (blocked) even after the set period of time has elapsed after the alignment motor (M103) is energized.
Causes: • Alignment motor (M103)
• Alignment home sensor (PS104)
• SD control board (SDCB)
• FS control board (FSCB)
Troubleshooting Guides: 1. Check the connector between M103-relay CN26-SDCB J7 for proper connection and correct as necessary.
2. Check the connector of M103 for proper drive coupling and correct as necessary.
3. Check the connector between PS104-relay CN26-SDCB J7 for proper connection and correct as necessary.
4. PS104 I/O check, sensor check
• Control signal: SDCB J7-6 (ON)
• Location of electrical component: FS-539/FS-539SD 6-P
5. M103 operation check
• Control signal: SDCB J7-7 to 10
• Location of electrical component: FS-539/FS-539SD 6-P
6. Replace M103.
7. Replace SDCB.
8. Replace FSCB.

Code: C1115
Description: (1) When FS-539SD is installed
Center fold knife motor malfunction
The center fold knife home sensor (PS108) is not turned OFF (unblocked) or ON (blocked) even after the set period of time has elapsed after the center fold knife motor (M109) is energized.
Causes: • Center fold knife motor (M109)
• Center fold knife home sensor (PS108)
• SD control board (SDCB)
• FS control board (FSCB)
Troubleshooting Guides: 1. Check the connector between M109-SDCB J11 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 PS108-relay CN26-SDCB J7 for proper connection and correct as necessary.
4. PS108 I/O check, sensor check
• Control signal: SDCB J7-3 (ON)
• Location of electrical component: FS-539/FS-539SD 6 to 7-P
5. M109 operation check
• Control signal: SDCB J11-11 to 20
• Location of electrical component: FS-539/FS-539SD 2-L
6. Replace M109.
7. Replace SDCB.
8. Replace FSCB.

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

Code: C1132
Description: (2) When FS-539+PK-524 or FS-539SD+PK-524 is installed
Punch drive motor drive malfunction
The punch home sensor (PS1) is not turned ON (unblocked) or OFF (blocked) even after the set period of time has elapsed while the punch drive motor (M1) is energized.
Causes: • Punch drive motor (M1)
• Punch home sensor (PS1)
• FS control board (FSCB)
Troubleshooting Guides: 1. Check the connector between M1-FSCB J7 for proper connection and correct as necessary.
2. Check the connector of M1 for proper drive coupling and correct as necessary.
3. Check the connector between PS1-FSCB J7 for proper connection and correct as necessary.
4. PS1 I/O check, sensor check
• Control signal: FSCB J7-5 (ON)
• Location of electrical component: FS-539/FS-539SD 13-K
5. M1 operation check
• Control signal: FSCB J7-7 to 8
• Location of electrical component: FS-539/FS-539SD 13-K
6. Replace M1.
7. Replace FSCB.

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

Code: C1140
Description: (2) When FS-539 or FS-539SD is installed
Alignment motor/Rr drive malfunction
• The alignment plate home sensor/Rr (PS13) is not turned OFF (unblocked) after the set period of time has elapsed after the plate drive starts from the home position.
• The alignment plate home sensor/Rr (PS13) is not turned ON (blocked) after the set period of time has elapsed while the alignment motor/Rr (M8) is energized when the plate returned to the home position.
• The plate does not reach the specified position within the set period of time.
Causes: • Alignment motor/Rr (M8)
• Alignment plate home sensor/Rr (PS13)
• FS control board (FSCB)
Troubleshooting Guides: 1. Check the connector between M8-relay CN19-FSCB J12 for proper connection and correct as necessary.
2. Check the connector of M8 for proper drive coupling and correct as necessary.
3. Check the connector between PS13-FSCB J9 for proper connection and correct as necessary.
4. PS13 I/O check, sensor check
• Control signal: FSCB J9-12 (ON)
• Location of electrical component: FS-539/FS-539SD 10-C
5. M8 operation check
• Control signal: FSCB J12-13 to 16
• Location of electrical component: FS-539/FS-539SD 7-C
6. Replace M8.
7. Replace FSCB.

Code: C1141
Description: (1) When FS-539 or FS-539SD is installed
FNS paddle motor drive malfunction
The upper paddle home sensor (PS14) is not turned OFF (blocked) or ON (unblocked) even after the set period of time has elapsed while the FNS paddle motor (M5) is energized.
Causes: • FNS paddle motor (M5)
• Upper paddle home sensor (PS14)
• FS control board (FSCB)
Troubleshooting Guides: 1. Check the connector between M5-FSCB J4 for proper connection and correct as necessary.
2. Check the connector of M5 for proper drive coupling and correct as necessary.
3. Check the connector between PS14-FSCB J4 for proper connection and correct as necessary.
4. PS14 I/O check, sensor check
• Control signal: FSCB J4-7 (ON)
• Location of electrical component: FS-539/FS-539SD 15-C
5. M5 operation check
• Control signal: FSCB J4<A>-12 to 15
• Location of electrical component: FS-539/FS-539SD 14-C
6. Replace M5.
7. Replace FSCB.

Code: C1144
Description: (1) When FS-539 or FS-539SD is installed
Pre-eject drive motor drive malfunction
• The pre-eject home sensor (PS21) is not turned OFF (unblocked) after the set period of time has elapsed after the trailing edge stopper drive starts from the home position. Or, the trailing edge stopper does not reach the specified position within the set period of time.
• The pre-eject home sensor (PS21) is not turned ON (blocked) after the set period of time has elapsed after the pre-eject drive motor (M9) is energized when the trailing edge stopper returned to the home position.
Causes: • Pre-eject drive motor (M9)
• Pre-eject home sensor (PS21)
• FS control board (FSCB)
Troubleshooting Guides: 1. Check the connector between M9-relay CN7A-FSCB J13 for proper connection and correct as necessary.
2. Check the connector of M9 for proper drive coupling and correct as necessary.
3. Check the connector between PS21-relay CN8-relay CN7B-FSCB J12 for proper connection and correct as necessary.
4. PS21 I/O check, sensor check
• Control signal: FSCB J12-6 (ON)
• Location of electrical component: FS-539/FS-539SD 8-C
5. M9 operation check
• Control signal: FSCB J13-3 to 4
• Location of electrical component: FS-539/FS-539SD 17-C
6. Replace M9.
7. FSCB F8 conduction check
8. Replace FSCB.

Code: C1145
Description: (1) When FS-539 or FS-539SD is installed
Trailing edge stopper motor drive malfunction
• The trailing edge stopper home sensor (PS20) is not turned OFF (unblocked) after the set period of time has elapsed after the trailing edge stopper drive starts from the home position.
• The trailing edge stopper home sensor (PS20) is not turned ON (blocked) after the laps of give time after the trailing edge stopper motor (M6) is energized when trailing edge stopper returned to the home position.
Causes: • Trailing edge stopper motor (M6)
• Trailing edge stopper home sensor (PS20)
• FS control board (FSCB)
Troubleshooting Guides: 1. Check the connector between M6-FSCB J5 for proper connection and correct as necessary.
2. Check the connector of M6 for proper drive coupling and correct as necessary.
3. Check the connector between PS20-relay CN13-FSCB J4 for proper connection and correct as necessary.
4. PS20 I/O check, sensor check
• Control signal: FSCB J4<A>-11 (ON)
• Location of electrical component: FS-539/FS-539SD 14-C
5. M6 operation check
• Control signal: FSCB J5-13 to 16
• Location of electrical component: FS-539/FS-539SD 15-K
6. Replace M6.
7. Replace FSCB.

Code: C1156
Description: (1) When FS-539SD is installed
SD paddle motor malfunction
The paddle home sensor (PS105) is not turned OFF (blocked) or ON (unblocked) even after the set period of time has elapsed while the SD paddle motor (M107) is energized.
Causes: • SD paddle motor (M107)
• Paddle home sensor (PS105)
• SD control board (SDCB)
• FS control board (FSCB)
Troubleshooting Guides: 1. Check the connector between M107-SDCB J8 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 PS105-SDCB J8 for proper connection and correct as necessary.
4. PS105 I/O check, sensor check
• Control signal: SDCB J8-3 (ON)
• Location of electrical component: FS-539/FS-539SD 4-P
5. M107 operation check
• Control signal: SDCB J8-4 to 7
• Location of electrical component: FS-539/FS-539SD 4-P
6. Replace M107.
7. Replace SDCB.
8. Replace FSCB.

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

Code: C1184
Description: (1) When FS-539 or FS-539SD is installed
Paper delivery control motor drive malfunction
• The paper delivery control home sensor (PS28) is not turned OFF (blocked) after the set period of time has elapsed after the paper detection lever drive starts from the home position.
• The paper delivery control home sensor (PS28) is not turned ON (unblocked) after the set period of time has elapsed after the paper delivery control motor (M12) is energized when the paper detection lever returned to the home position.
Causes: • Paper delivery control motor (M12)
• Paper delivery control home sensor (PS28)
• FS control board (FSCB)
Troubleshooting Guides: 1. Check the connector between M12-FSCB J14 for proper connection and correct as necessary.
2. Check the connector of M12 for proper drive coupling and correct as necessary.
3. Check the connector between PS28-relay CN1-FSCB J14 for proper connection and correct as necessary.
4. PS28 I/O check, sensor check
• Control signal: FSCB J14<A>-12 (ON)
• Location of electrical component: FS-539/FS-539SD 2-C
5. M12 operation check
• Control signal: FSCB J14<A>-9 to 12
• Location of electrical component: FS-539/FS-539SD 1-C
6. Replace M12.
7. Replace FSCB.

Code: C1195
Description: (1) When FS-539SD is installed
Paper discharge control motor malfunction
The curl cover detection sensor (PS102) is not turned OFF (unblocked) or ON (blocked) even after the set period of time has elapsed after the paper discharge control motor (M102) is energized.
Causes: • Paper discharge control motor (M102)
• Curl cover detection sensor (PS102)
• SD control board (SDCB)
• FS control board (FSCB)
Troubleshooting Guides: 1. Check the connector between M102-relay CN22-relay CN21-SDCB J5 for proper connection and correct as necessary.
2. Check the connector of M102 for proper drive coupling and correct as necessary.
3. Check the connector between PS102-relay CN22-relay CN21-SDCB J5 for proper connection and correct as necessary.
4. PS102 I/O check, sensor check
• Control signal: SDCB J5-3 (ON)
• Location of electrical component: FS-539/FS-539SD 4-L
5. M102 operation check
• Control signal: SDCB J5-4 to 7
• Location of electrical component: FS-539/FS-539SD 4-L
6. Replace M102.
7. Replace SDCB.
8. Replace FSCB.

Code: C1196
Description: (1) When FS-539SD is installed
Center fold guide motor malfunction
The guide home sensor (PS107) is not turned OFF (unblocked) or ON (blocked) even after the set period of time has elapsed after the center fold guide motor (M106) is energized.
Causes: • Center fold guide motor (M106)
• Guide home sensor (PS107)
• SD control board (SDCB)
• FS control board (FSCB)
Troubleshooting Guides: 1. Check the connector between M106-SDCB J9 for proper connection and correct as necessary.
2. Check the connector of M106 for proper drive coupling and correct as necessary.
3. Check the connector between PS107-SDCB J9 for proper connection and correct as necessary.
4. PS107 I/O check, sensor check
• Control signal: SDCB J9-6 (ON)
• Location of electrical component: FS-539/FS-539SD 5-P
5. M106 operation check
• Control signal: SDCB J9-7 to 10
• Location of electrical component: FS-539/FS-539SD 4-P
6. Replace M106.
7. Replace SDCB.
8. Replace FSCB.

Code: C1197
Description: (1) When FS-539SD is installed
Tri-folding guide motor malfunction
The tri-folding gate home sensor (PS111) is not turned OFF (blocked) or ON (unblocked) even after the set period of time has elapsed while the tri-folding guide motor (M108) is energized.
Causes: • Tri-folding guide motor (M108)
• Tri-folding gate home sensor (PS111)
• SD control board (SDCB)
• FS control board (FSCB)
Troubleshooting Guides: 1. Check the connector between M108-SDCB J8 for proper connection and correct as necessary.
2. Check the connector of M108 for proper drive coupling and correct as necessary.
3. Check the connector between PS111-SDCB J8 for proper connection and correct as necessary.
4. PS111 I/O check, sensor check
• Control signal: SDCB J8-10 (ON)
• Location of electrical component: FS-539/FS-539SD 3-P
5. M108 operation check
• Control signal: SDCB J8-11 to 14
• Location of electrical component: FS-539/FS-539SD 3-P
6. Replace M108.
7. Replace SDCB.
8. Replace FSCB.

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

Code: C11A2
Description: (1) When FS-539 or FS-539SD is installed
Receiving roller retraction motor drive malfunction
The receiving roller retraction sensor (PS11) is not turned OFF (blocked) or ON (unblocked) even after the set period of time has elapsed after the receiving roller retraction motor (M4) is energized.
Causes: • Receiving roller retraction motor (M4)
• Receiving roller retraction sensor (PS11)
• FS control board (FSCB)
Troubleshooting Guides: 1. Check the connector between M4-FSCB J4 for proper connection and correct as necessary.
2. Check the connector of M4 for proper drive coupling and correct as necessary.
3. Check the connector between PS11-FSCB J5 for proper connection and correct as necessary.
4. PS11 I/O check, sensor check
• Control signal: FSCB J5-6 (ON)
• Location of electrical component: FS-539/FS-539SD 16-K
5. M4 operation check
• Control signal: FSCB J4<A>-1 to 4
• Location of electrical component: FS-539/FS-539SD 13-C
6. Replace M4.
7. Replace FSCB.

Code: C11E1
Description: (1) When FS-539 or FS-539SD is installed
Paper exit switching drive malfunction
The route change gate home sensor (PS30) is not turned OFF (unblocked) or ON (blocked) even after the set period of time has elapsed after the FNS entry transport motor (M2) is energized.
Causes: • FNS entry transport motor (M2)
• Route change gate home sensor (PS30)
• FS control board (FSCB)
Troubleshooting Guides: 1. Check the connector between M2-FSCB J9 for proper connection and correct as necessary.
2. Check the connector of M2 for proper drive coupling and correct as necessary.
3. Check the connector between PS30-FSCB J5 for proper connection and correct as necessary.
4. PS30 I/O check, sensor check
• Control signal: FSCB J5-9 (ON)
• Location of electrical component: FS-539/FS-539SD 15-K
5. M2 operation check
• Control signal: FSCB J9<A>-1 to 4
• Location of electrical component: FS-539/FS-539SD 12-C
6. Replace M2.
7. Replace FSCB.

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

Code: C2152 … C2156
Description: • C2152: Transfer belt fault at initial position return
• C2153: Transfer belt spacing fault at K pressure switching
• C2154: Transfer belt contact fault at all pressure switching
• C2155: Transfer belt contact fault after K pressure established
• C2156: Transfer belt spacing fault after all pressure established
• C2152: The 1st transfer pressure sensor (PS39) is unable to detect ‘switch from retraction to pressure’ or ‘switch from pressure to retraction’ within a given period time after the 1st transfer pressure clutch (CL5) has stared engagement during an initial position return.
• C2153: The 1st transfer pressure sensor (PS39) does not detect “switch from pressure to retraction” within a given period time after 1st transfer pressure clutch (CL5) has stared engagement.
• C2154: The 1st transfer pressure sensor (PS39) does not detect “switch from retraction to pressure” within a given period time after 1st transfer pressure clutch (CL5) has stared engagement.
• C2155: The 1st transfer pressure sensor (PS39) is turned ON (blocked) after the lamps of given time after the 1st transfer pressure clutch (CL5) turned OFF when the release operation is finished.
• C2156: The 1st transfer pressure sensor (PS39) is turned OFF (unblocked) after the laps of given time after the 1st transfer pressure clutch (CL5) turned OFF when the pressing operation is finished.
Causes: • Fusing motor (M3)
• 1st transfer pressure clutch (CL5)
• 1st transfer pressure sensor (PS39)
• CPU board (CPUB)
• Base board (BASEB)
Troubleshooting Guides: 1. Check the connector between M3-BASEB CN11E for proper connection and correct as necessary.
2. Check the connector of M3 for proper drive coupling and correct as necessary.
3. Check the connector between PS39-relay CN24-BASEB CN7E for proper connection and correct as necessary.
4. Check the connector between CL5-relay CN29-BASEB CN12E for proper connection and correct as necessary.
5. Check CPUB for proper installation and correct as necessary.
6. PS39 I/O check, sensor check
• Control signal: BASEB CN7E-13 (ON)
• Location of electrical component: 22-C
7. CL5 load check
• Check code: 24
• Multi code: 1, 2
• Control signal: BASEB CN12E-12 (ON)
• Location of electrical component: 5-C
8. M3 load check
• Check code: 45
• Multi code: 1, 3, 5
• Control signal: BASEB CN11E-11 (REM), BASEB CN11E-14 (FGP)
• Location of electrical component: 3-C
9. Replace M3.
10. Replace CPUB.
11. Replace BASEB.

Code: C2253, C2254
Description: • C2253: IU motor failure to turn
• C2254: IU motor turning at abnormal timing
C2253: The motor lock signal remains HIGH for a predetermined continuous period of time while the motor is turning.
C2254: The motor lock signal remains LOW for a predetermined continuous period of time while the motor remains stationary.
Causes: • IU motor (M2)
• CPU board (CPUB)
• Base board (BASEB)
Troubleshooting Guides: 1. Check the connector between M2-BASEB CN12E for proper connection and correct as necessary.
2. Check the connector of M2 for proper drive coupling and correct as necessary.
3. Check CPUB for proper installation and correct as necessary.
4. M2 load check
• Check code: 41
• Multi code: 1, 3
• Control signal: BASEB CN12E-7 (REM), BASEB CN12E-10 (FGP)
• Location of electrical component: 5-C
5. Replace M2.
6. Replace CPUB.
7. Replace BASEB.

Code: C2355
Description: Transfer belt cleaner cooling fan failure to turn
The fan lock signal remains HIGH for a predetermined continuous period of time while the fan is turning.
Causes: • Transfer belt cleaner cooling fan (FM2)
• CPU board (CPUB)
• Base board (BASEB)
Troubleshooting Guides: 1. Check the connector between FM2-relay CN139-relay CN22-BASEB CN15E for proper connection and correct as necessary.
2. Check the fan for possible overload and correct as necessary.
3. Check CPUB for proper installation and correct as necessary.
4. FM2 load check
• Check code: 42
• Multi code: 2
• Control signal: BASEB CN15E-10 (REM), BASEB CN15E-12 (LOCK)
• Location of electrical component: 16-J
5. Replace FM2.
6. Replace CPUB.
7. Replace BASEB.

Code: C2414
Description: Developing unit/K new article release
The status with the new unit is not cleared after the new developing unit is set.
Causes: • Developing unit/K
• CPU board (CPUB)
• Base board (BASEB)
Troubleshooting Guides: 1. Reinstall the developing unit/K.
2. Check the connector between the developing unit/K-relay CN161-relay CN15-BASEB CN18E for proper connection and correct as necessary.
3. Check CPUB for proper installation and correct as necessary.
4. Replace the developing unit/K.
5. Replace CPUB.
6. Replace BASEB.

Code: C2551, C2553, C2555, C2557
Description: • C2551: Abnormally low toner density detected cyan TCR sensor
• C2553: Abnormally low toner density detected magenta TCR sensor
• C2555: Abnormally low toner density detected yellow TCR sensor
• C2557: Abnormally low toner density detected black TCR sensor
A TC ratio of a predetermined value (2.5 %) or less is detected consecutively a predetermined number of times.
Causes: • Imaging unit/Y,M,C
• Developing unit/K
• Toner cartridge/Y,M,C,K
• Toner empty sensor/Y (PS34)
• Toner empty sensor/M (PS33)
• Toner empty sensor/C (PS32)
• Toner empty sensor/K (PS31)
• Toner cartridge motor (M10)
• Toner supply motor/Y,M (M9)
• Toner supply motor/C,K (M7)
• CPU board (CPUB)
• Base board (BASEB)
Troubleshooting Guides: 1. Perform image troubleshooting procedure if image density is low.
2. Reinstall the imaging unit.
3. Reinstall the developing unit/K.
4. Reinstall the toner cartridge.
5. Check the connector between the imaging unit, developing unit/K-relay CN161/CN162/CN163/CN164-relay CN15-BASEB CN18E for
proper connection and correct as necessary.
6. Check CPUB for proper installation and correct as necessary.
7. M10 operation check
• Control signal: BASEB CN26E-1 to 4
• Location of electrical component: 19-J
8. M7, M9 operation check
• Control signal: BASEB CN28E-1 to 4 (M7), BASEB CN28E-5 to 8 (M9)
• Location of electrical component: 18-J
9. If the toner empty sensor and its surroundings inside the sub hopper are dirtied with toner, clean them.
10. Replace the corresponding imaging unit.
11. Replace the developing unit/K.
12. Replace CPUB.
13. Replace BASEB.

Code: C2552, C2554, C2556, C2558
Description: • C2552: Abnormally high toner density detected cyan TCR sensor
• C2554: Abnormally high toner density detected magenta TCR sensor
• C2556: Abnormally high toner density detected yellow TCR sensor
• C2558: Abnormally high toner density detected black TCR sensor
The TC ratio of the toner determined by the toner replenishment control is detected to be the predetermined value or over for consecutive times.
Causes: • Imaging unit/Y,M,C
• Developing unit/K
• CPU board (CPUB)
• Base board (BASEB)
Troubleshooting Guides: 1. Reinstall the imaging unit.
2. Reinstall the developing unit/K.
3. Check the connector between the imaging unit, developing unit/K-relay CN161/CN162/CN163/CN164-relay CN15-BASEB CN18E for
proper connection and correct as necessary.
4. Replace the corresponding imaging unit.
5. Check CPUB for proper installation and correct as necessary.
6. Replace the developing unit/K.
7. Replace CPUB.
8. Replace BASEB.

Code: C2559, C255A, C255B, C255C
Description: • C2559: Cyan TCR sensor adjustment failure
• C255A: Magenta TCR sensor adjustment failure
• C255B: Yellow TCR sensor adjustment failure
• C255C: Black TCR sensor adjustment failure
TCR sensor automatic adjustment does not function properly, failing to adjust to an appropriate value.
Causes: • Imaging unit/Y,M,C
• Developing unit/K
• CPU board (CPUB)
• Base board (BASEB)
Troubleshooting Guides: 1. Reinstall the imaging unit.
2. Reinstall the developing unit/K.
3. Check the connector between the imaging unit, developing unit/K-relay CN161/CN162/CN163/CN164-relay CN15-BASEB CN18E for proper connection and correct as necessary.
4. Replace the corresponding imaging unit.
5. Check CPUB for proper installation and correct as necessary.
6. Replace the developing unit/K.
7. Replace CPUB.
8. Replace BASEB.

Code: C2561, C2562, C2563, C2564
Description: • C2561: Cyan TCR sensor failure
• C2562: Magenta TCR sensor failure
• C2563: Yellow TCR sensor failure
• C2564: Black TCR sensor failure
The input of each color TCR sensor is 0.
This detection is used for detecting disconnection of TCR sensor connector.
Causes: • Imaging unit/Y,M,C
• Developing unit/K
• CPU board (CPUB)
• Base board (BASEB)
Troubleshooting Guides: 1. Reinstall the imaging unit.
2. Reinstall the developing unit/K.
3. Check the connector between the imaging unit, developing unit/K-relay CN161/CN162/CN163/CN164-relay CN15-BASEB CN18E for proper connection and correct as necessary.
4. Replace the corresponding imaging unit.
5. Check CPUB for proper installation and correct as necessary.
6. Replace the developing unit/K.
7. Replace CPUB.
8. 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 [New Release] in the service mode. When the
transfer roller has been replaced with a new one, perform [Counter clear].
• Imaging unit/Y,M,C
• Developing unit/K
• Drum unit/K
• 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 malfunction 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, C2A12, C2A13, C2A14
Description: • C2A11: Imaging unit/C new article release
• C2A12: Imaging unit/M new article release
• C2A13: Imaging unit/Y new article release
• C2A14: Drum unit/K new release failure
The status with the new unit is not cleared after the new imaging unit or new drum unit is set.
Causes: • Imaging unit/Y,M,C
• Drum unit/K
• CPU board (CPUB)
• Base board (BASEB)
Troubleshooting Guides: 1. Clean the connection between the imaging unit or drum unit/K and the machine if dirty.
2. Reinstall the imaging unit.
3. Reinstall the drum unit/K.
4. Check the connector between the imaging unit/Y,M,C-relay CN162/CN163/CN164-relay CN15-BASEB CN18E for proper connection and correct as necessary.
5. Check the connector between the drum unit/K-relay CN14-BASEB CN15E for proper connection and correct as necessary.
6. Check CPUB for proper installation and correct as necessary.
7. Replace the corresponding imaging unit.
8. Replace the drum unit/K.
9. Replace CPUB.
10. Replace BASEB.

Code: C3201, C3202
Description: • C3201: Fusing motor failure to turn
• C3202: Fusing motor turning at abnormal timing
• C3201: The motor lock signal remains HIGH for a predetermined continuous period of time while the motor is turning.
• C3202: The motor lock signal remains LOW for a predetermined continuous period of time while the motor remains stationary.
Causes: • Fusing motor (M3)
• CPU board (CPUB)
• Base board (BASEB)
Troubleshooting Guides: 1. Check the connector between M3-BASEB CN11E for proper connection and correct as necessary.
2. Check the loading status of the fusing unit drive, and correct the error as necessary.
3. Check CPUB for proper installation and correct as necessary.
4. M3 load check
• Check code: 45
• Multi code: 1, 3, 5
• Control signal: BASEB CN11E-11 (REM), BASEB CN11E-14 (FGP)
• Location of electrical component: 3-C
5. Replace M3.
6. Replace CPUB.
7. Replace BASEB.

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

Code: C3425
Description: Fusing warm-up trouble
• Detected temperature of the heating roller temperature sensor (TEMS) does not go up a given range of temperature even after a lapse of given period of time at warm up.
• The temperature detected by the heating roller temperature sensor (TEMS) does not shift from the pre-standby state or the post-print color printing-enable wait state even after the lapse of a predetermined period of time after the completion of warm-up.
Causes: • Fusing unit
• Heating roller temperature sensor (TEMS)
• DC power supply (DCPU)
• CPU board (CPUB)
• Base board (BASEB)
Troubleshooting Guides: 1. Check the fusing unit for correct installation (whether it is secured in position).
2. Check the open/close operation of the right door.
3. Check the connector between the fusing unit-relay CN3-DCPU CN2 for proper connection and correct as necessary.
4. Check the connector between the fusing unit-relay CN4-BASEB CN16E for proper connection and correct as necessary.
5. Check CPUB for proper installation and correct as necessary.
6. Replace the fusing unit.
7. Replace CPUB.
8. Replace BASEB.
9. Replace DCPU.

Code: C3722, C3725, C3726
Description: • C3722: Fusing abnormally high temperature detection (Edge of the heating roller)
• C3725: Fusing abnormally high temperature detection (Main of the heating roller)
• C3726: Fusing abnormally high temperature detection (Center of the heating roller)
• C3722: Detected temperature of the heating roller thermistor/1 (TH1) goes beyond a given temperature for a given period of time consecutively.
• The hard protector signal remains LOW for a predetermined continuous period of time.
• C3725: Detected temperature of the heating roller temperature sensor (TEMS) goes beyond a given temperature for a given period of time consecutively.
• C3726: Detected temperature of the heating roller thermistor/2 (TH2) goes beyond a given temperature for a given period of time consecutively.
• The hard protector signal remains LOW for a predetermined continuous period of time.
Causes: • Fusing unit
• C3722: Heating roller thermistor/1 (TH1)
• C3725: Heating roller temperature sensor (TEMS)
• C3726: Heating roller thermistor/2 (TH2)
• DC power supply (DCPU)
• CPU board (CPUB)
• Base board (BASEB)
Troubleshooting Guides: 1. Check the fusing unit for correct installation (whether it is secured in position).
2. Check the open/close operation of the right door.
3. Check the connector between the fusing unit-relay CN4-BASEB CN16E 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: C3736, C3739
Description: • C3736: Fusing abnormally high temperature detection hard protector (Middle of the heating roller)
• C3739: Fusing abnormally high temperature detection hard protector (Edge of the heating roller)
• C3736: An abnormally high temperature is detected on the hard protector circuit (middle of the heating roller).
• C3739: An abnormally high temperature is detected on the hard protector circuit (edge of the heating roller).
Causes: • Fusing unit
• C3736: Heating roller thermistor/2 (TH2)
• C3739: Heating roller thermistor/1 (TH1)
• CPU board (CPUB)
• Base board (BASEB)
Troubleshooting Guides: 1. Check the fusing unit for correct installation (whether it is secured in position).
2. Check the open/close operation of the right door.
3. Check the connector between the fusing unit-relay CN4-BASEB CN16E for proper connection and correct as necessary.
4. Check CPUB for proper installation and correct as necessary.
5. Replace the fusing unit.
6. Replace CPUB.
7. Replace BASEB.

Code: C3825, C3826
Description: • C3825: Fusing abnormally low temperature detection (Main of the heating roller)
• C3826: Fusing abnormally low temperature detection (Center of the heating roller)
• C3825: The heating roller temperature sensor (TEMS) continues to detect a temperature lower than a predetermined one for a predetermined period of time.
• C3826: The heating roller thermistor/2 (TH2) continues to detect a temperature lower than a predetermined one for a predetermined period of time.
Causes: • Fusing unit
• C3825: Heating roller temperature sensor (TEMS)
• C3826: Heating roller thermistor/2 (TH2)
• DC power supply (DCPU)
• CPU board (CPUB)
• Base board (BASEB)
Troubleshooting Guides: 1. Check the fusing unit for correct installation (whether it is secured in position).
2. Check the open/close operation of the right door.
3. Check the connector between the fusing unit-relay CN4-BASEB CN16E 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: 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: After a predetermined period of time after the warm-up stage is started, the heating roller thermistor/1 (TH1) voltage does not decrease by predetermined steps (temperature rise) within a predetermined period of time.
• 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 or above given temperatures.
• C3926: After a predetermined period of time after the warm-up stage is started, the heating roller thermistor/2 (TH2) voltage does not decrease by predetermined steps (temperature rise) within a predetermined period of time.
Causes: • Fusing unit
• C3922: Heating roller thermistor/1 (TH1)
• C3925: Heating roller temperature sensor (TEMS)
• C3926: Heating roller thermistor/2 (TH2)
• DC power supply (DCPU)
• CPU board (CPUB)
• Base board (BASEB)
Troubleshooting Guides: 1. Check the fusing unit for correct installation (whether it is secured in position).
2. Check the open/close operation of the right door.
3. Check the connector between the fusing unit-relay CN4-BASEB CN16E 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: C392B, C392C, C392D, C392E
Description: • C392B: Fusing sensor wire breaks detection (difference of temperature)
• C392C: Fusing Sensor breaks abnormality (heating detection)
• C392D: Fusing sensor wire breaks abnormality (heating compensation)
• C392E: Fusing sensor wire breaks abnormality (heating GND)
The difference between the temperature corrected by the heating roller thermistor/1 (TH1) and the temperature detected by the heating roller thermistor/2 (TH2) exceeds a predetermined value.
• C392B: The difference between temperature corrected by the heating roller thermistor/1 (TH1) and the temperature detected by the heating roller thermistor/2 (TH2) exceeds a predetermined value.
• C392C: The heating detection thermistor AD value is higher than the threshold value longer than predetermined period of time.
• C392D: The heating compensation thermistor AD value is higher than the threshold value longer than predetermined period of time.
• C392E: The heating detection thermistor AD value and the heating compensation thermistor AD value are higher than the threshold value longer than predetermined period of time.
Causes: • Fusing unit
• Heating roller thermistor/1 (TH1)
• Heating roller thermistor/2 (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 CN4-BASEB CN16E for proper connection and correct as necessary.
4. Replace the fusing unit.
5. Replace CPUB.
6. Replace BASEB.

Code: C40A2, C40A3, C40A4
Description: • C40A2: Mechanical controller PF communication data error
• C40A3: Mechanical controller PF transmission timeout
• C40A4: Mechanical controller PF communication pulse 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 PSW2E conduction check
6. Replace BASEB.

Code: C40A5, C40A6
Description: • 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 PSW2E 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 PSW2E 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
• CPU board (CPUB)
• Base board (BASEB)
Troubleshooting Guides: 1. Check the connector between the PH unit-relay CN25-BASEB CN9E 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: 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-BASEB CN5 for proper connection and correct as necessary.
2. Check CPUB for proper installation and correct as necessary.
3. Replace the PH unit.
4. Replace CPUB.
5. Replace BASEB.

Code: C5102, C5103
Description: • C5102: Transport motor failure to turn
• C5103: Transport motor turning at abnormal timing
• C5102: The motor lock signal remains HIGH for a predetermined continuous period of time while the motor is turning.
• C5103: The motor lock signal remains LOW for a predetermined continuous period of time while the motor remains stationary.
Causes: • Transport motor (M1)
• CPU board (CPUB)
• Base board (BASEB)
Troubleshooting Guides: 1. Check the connector between M1-BASEB CN11E for proper connection and correct as necessary.
2. Check the loading status of the transfer belt drive, and correct the error as necessary.
3. Check CPUB for proper installation and correct as necessary.
4. M1 load check
• Check code: 40
• Multi code: 1, 3
• Control signal: BASEB CN11E-4 (REM), BASEB CN11E-7 (FGP)
• Location of electrical component: 3-C
5. Replace M1.
6. Replace CPUB.
7. Replace BASEB.

Code: C5351
Description: Power supply cooling fan motor failure to turn
The fan lock signal remains HIGH for a predetermined continuous period of time while the fan is turning.
Causes: • Power supply cooling fan (FM1)
• CPU board (CPUB)
• Base board (BASEB)
Troubleshooting Guides: 1. Check the connector between FM1-relay CN49-BASEB CN20E for proper connection and correct as necessary.
2. Check the fan for possible overload and correct as necessary.
3. Check CPUB for proper installation and correct as necessary.
4. FM1 load check
• Check code: 42
• Multi code: 1
• Control signal: BASEB CN20E-1 (REM), BASEB CN20E-3 (LOCK)
• Location of electrical component: 1-J
5. Replace FM1.
6. Replace CPUB.
7. Replace BASEB.

Code: C5360
Description: Clean unit fan failure to turn (When CU-101 is installed)
The fan lock signal remains HIGH for a predetermined continuous period of time while the fan is turning.
Causes: • Exhaust fan/1 (FM14)
• Exhaust fan/2 (FM15)
• Suction fan (FM16)
• Clean unit drive board (CUDB)
• CPU board (CPUB)
• Base board (BASEB)
Troubleshooting Guides: 1. Check the connector between CUDB CN1-BASEB CN29E for proper connection and correct as necessary.
2. Check the connector between FM14-CUDB CN2, FM15-CUDB CN3, FM16-relay CN81-CUDB CN4 for proper connection and correct as
necessary.
3. Check the fan for possible overload and correct as necessary.
4. Check CPUB for proper installation and correct as necessary.
5. FM14, FM15, FM16 Load check
• Check code: 42
• Multi code: 5
• Control signal: CUDB CN2 (FM14), CUDB CN3 (FM15), CUDB CN4 (FM16)
• Location of electrical component: 14-U (FM16), 13-Y (FM14, FM15)
6. Replace the defective fan. (FM14 / FM15 / FM16)
7. Replace CUDB.
8. Replace CPUB.
9. Replace BASEB.

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

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

Code: C5501
Description: AC signal abnormality
The zero cross signal is not input during fusing phase control.
Causes: • 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 CN3-DCPU CN2 for proper connection and correct as necessary.
3. Check the connector between DCPU CN7-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: 1. Check the connectors on BASEB for proper connection and correct as necessary.
2. Rewrite the firmware.
3. Replace CPUB.
4. 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 the PH unit-BASEB CN5 for proper connection and correct as necessary.
3. Check CPUB for proper installation and correct as necessary.
4. Replace the PH unit.
5. Replace CPUB.
6. Replace BASEB.

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

Code: C6001
Description: DF related configuration error 1
Inconsistency in the configuration with the installed DF is detected on the main body.
Causes: • DF control board (DFCB)
• CPU board (CPUB)
• Base board (BASEB)
Troubleshooting Guides: 1. Check the type of the installed DF and replace it if it is a wrong one.
2. Check the connector between DFCB CN1-relay CN1DF-BASEB CN35E for proper connection and correct as necessary.
3. Check CPUB for proper installation and correct as necessary.
4. Replace DFCB.
5. Replace CPUB.
6. Replace BASEB.

Code: C6002
Description: DF related configuration error 2
Inconsistency in the configuration with the installed DF is detected on the main body.
Causes: • DF control board (DFCB)
• CPU board (CPUB)
• Base board (BASEB)
Troubleshooting Guides: 1. Check the type of the installed DF and replace it if it is a wrong one.
2. Correct the harness connection between DFCB CN1-relay CN1DF-BASEB CN35E if faulty.
3. Check CPUB for proper installation and correct as necessary.

Code: C6102, C6103
Description: • C6102: Drive system home sensor malfunction
• C6103: Slider over running
C6102: • The scanner home sensor (PS201) is unable to detect the scanner located at its home position. • The scanner home sensor (PS201) is unable to detect a scanner even when the scanner motor (M201) has been driven to move the scanner over the maximum travelling distance. • The scanner home sensor (PS201) detects the scanner when the scanner has moved the maximum travelling distance from the position, at which it blocks the scanner home sensor (PS201).
C6103: The scanner home sensor (PS201) detects the scanner at its home position during a period of time that begins with the time when a prescan command and a scan preparation command are executed and ends when a home return command is executed.
Causes: • Scanner home sensor (PS201)
• Scanner motor (M201)
• CPU board (CPUB)
• Base board (BASEB)
Troubleshooting Guides: 1. Correct or change the scanner drive (pulley, gear, belt) if it is faulty.
2. Correct the scanner motor set screw if loose.
3. Adjust [Image Position: Leading Edge] and [Sub Scan Zoom Adj.].
4. BASEB F15E conduction check
5. Check the connector between M201-relay CN151-BASEB CN25E for proper connection and correct as necessary.
6. Check the connector between PS201-BASEB CN21E for proper connection and correct as necessary.
7. Check CPUB for proper installation and correct as necessary.
8. PS201 I/O check, sensor check
• Control signal: BASEB CN21E-15 (ON)
• Location of electrical component: 22-J
9. M201 operation check
• Control signal: BASEB CN25E-1 to 4
• Location of electrical component: 20-J
10. Replace CPUB.
11. Replace BASEB.

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

Code: C6751
Description: Light intensity adjustment failure
• The adjustment value is 0 or 255 during a CIS clamp adjustment.
• The peak value of the output data is 64 or less during a CIS gain adjustment.
Causes: • CIS module
• CPU board (CPUB)
• Base board (BASEB)
Troubleshooting Guides: 1. Check the connector between CIS-BASEB CN2 for proper connection and correct as necessary.
2. Check CPUB for proper installation and correct as necessary.
3. Check for possible extraneous light and correct as necessary.
4. Light guide or lens array is dirty.
5. Replace the CIS module.
6. Replace CPUB.
7. Replace BASEB.

Code: C6752
Description: ASIC clock input error (front side)
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: • CIS module
• CPU board (CPUB)
• Base board (BASEB)
Troubleshooting Guides: 1. Correct the harness connection of CIS if faulty.
2. Check CPUB for proper installation and correct as necessary.
3. Replace the CIS module.
4. Replace CPUB.
5. Replace BASEB.

Code: C6756
Description: CIS power-supply voltage malfunction
Power is not supplied to CIS 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: • CIS module
• CPU board (CPUB)
• Base board (BASEB)
• DC power supply (DCPU)
Troubleshooting Guides: 1. Correct the harness connection between CIS-BASEB CN2 if faulty.
2. Correct the harness connection between BASEB CN1E-DCPU CN5 if faulty.
3. Check CPUB for proper installation and correct as necessary.
4. Replace the CIS module.
5. Replace CPUB.
6. Replace BASEB.
7. Replace DCPU.

Code: C6F01 … C6FDD
Description: Scanner sequence trouble
The original transport interval becomes shorter than the predetermined value due to an original transport control error in original reading in DF.
Causes: • CPU board (CPUB)
• Base board (BASEB)
• DF control board (DFCB)
Troubleshooting Guides: 1. Correct the harness connection between main body and DF if faulty.
2. Check CPUB for proper installation and correct as necessary.
3. Replace DFCB.
4. Replace CPUB.
5. Replace BASEB.

Code: C7111
Description: Tray 1 lift-up motor failure
After starting the motor, an error is detected for the malfunction detection signal.
Causes: • Tray 1 lift-up motor (M12)
• Base board (BASEB)
Troubleshooting Guides: 1. Check the connector between M12-BASEB CN7E for proper connection and correct as necessary.
2. Check the connector of M12 for proper drive coupling and correct as necessary.
3. M12 load check
• Check code: 23
• Multi code: 4
• Control signal: BASEB CN7E<A>-11 to 12
• Location of electrical component: 24-C
4. Replace M12.
5. Replace BASEB.

Code: C7112
Description: Tray 2 lift-up motor failure
After starting the motor, an error is detected for the malfunction detection signal.
Causes: • Tray 2 lift-up motor (M13)
• Base board (BASEB)
Troubleshooting Guides: 1. Check the connector between M13- BASEB CN7E for proper connection and correct as necessary.
2. Check the connector of M13 for proper drive coupling and correct as necessary.
3. M13 load check
• Check code: 23
• Multi code: 5
• Control signal: BASEB CN7E<A>-13 to 14
• Location of electrical component: 23-C
4. Replace M13.
5. Replace BASEB.

Code: C7151, C7152, C7153
Description: • C7151: Skew correction motor/C failure
• C7152: Skew correction motor/M failure
• C7153: Skew correction motor/Y failure
After starting the motor, an error is detected for the malfunction detection signal.
Causes: • PH unit
• Base board (BASEB)
Troubleshooting Guides: 1. Check the connector between the PH unit-relay CN58-BASEB CN10E for proper connection and correct as necessary.
2. PH unit conduction check
• Control signal: BASEB CN10E-1 to 6 (C7153), BASEB CN10E-7 to 12 (C7152), BASEB CN10E-13 to 18 (C7151)
• Location of electrical component: 18 to 21-P
3. Replace the PH unit.
4. Replace BASEB.

Code: C7201
Description: Tray 1 paper feed clutch failure
After starting the clutch, an error is detected for the malfunction detection signal.
Causes: • Tray 1 paper feed clutch (CL3)
• Base board (BASEB)
Troubleshooting Guides: 1. Check the connector between CL3-relay CN130-relay CN53-BASEB CN5E for proper connection and correct as necessary.
2. Check the connector of CL3 for proper drive coupling and correct as necessary.
3. CL3 load check
• Check code: 20
• Multi code: 1
• Control signal: BASEB 5E<A>-11 (ON)
• Location of electrical component: 9-C
4. Replace CL3.
5. Replace BASEB.

Code: C7202
Description: Tray 2 paper feed clutch failure
After starting the clutch, an error is detected for the malfunction detection signal.
Causes: • Tray 2 paper feed clutch (CL1)
• Base board (BASEB)
Troubleshooting Guides: 1. Check the connector between CL1-relay CN134-relay CN55-BASEB CN5E for proper connection and correct as necessary.
2. Check the connector of CL1 for proper drive coupling and correct as necessary.
3. CL1 load check
• Check code: 20
• Multi code: 2
• Control signal: BASEB 5E-11 (ON)
• Location of electrical component: 11-C
4. Replace CL1.
5. Replace BASEB.

Code: C7205
Description: Tray 2 vertical transport clutch failure
After starting the clutch, an error is detected for the malfunction detection signal.
Causes: • Tray 2 vertical transport clutch (CL2)
• Base board (BASEB)
Troubleshooting Guides: 1. Check the connector between CL2-relay CN135-relay CN55-BASEB CN5E for proper connection and correct as necessary.
2. Check the connector of CL2 for proper drive coupling and correct as necessary.
3. CL2 load check
• Check code: 21
• Multi code: 1
• Control signal: BASEB CN5E-13 (ON)
• Location of electrical component: 11-C
4. Replace CL2.
5. Replace BASEB.

Code: C7206
Description: Bypass tray paper feed clutch failure
After starting the clutch, an error is detected for the malfunction detection signal.
Causes: • Bypass tray paper feed clutch (CL7)
• Base board (BASEB)
Troubleshooting Guides: 1. Check the connector between CL7-relay CN122-relay CN50-BASEB CN30E for proper connection and correct as necessary.
2. Check the connector of CL7 for proper drive coupling and correct as necessary.
3. CL7 load check
• Check code: 20
• Multi code: 3
• Control signal: BASEB CN30E-2 (ON)
• Location of electrical component: 13-C
4. Replace CL7.
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 CN116-relay CN33-BASEB CN13E for proper connection and correct as necessary.
2. Check the connector of CL4 for proper drive coupling and correct as necessary.
3. CL4 load check
• Check code: 21
• Multi code: 2
• Control signal: BASEB CN13E<A>-11 (ON)
• Location of electrical component: 7-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)
• Base board (BASEB)
Troubleshooting Guides: 1. Check the connector between CL5-relay CN29-BASEB CN12E for proper connection and correct as necessary.
2. Check the connector of CL5 for proper drive coupling and correct as necessary.
3. CL5 load check
• Check code: 24
• Multi code: 1, 2
• Control signal: BASEB CN12E-12 (ON)
• Location of electrical component: 5-C
4. Replace CL5.
5. Replace BASEB.

Code: C7241
Description: Bypass pick-up solenoid failure
After starting the solenoid, an error is detected for the malfunction detection signal.
Causes: • Bypass pick-up solenoid (SD1)
• Base board (BASEB)
Troubleshooting Guides: 1. Check the connector between SD1-relay CN123-relay CN50-BASEB CN30E for proper connection and correct as necessary.
2. Check the connector of SD1 for proper drive coupling and correct as necessary.
3. SD1 load check
• Check code: 23
• Multi code: 3
• Control signal: BASEB CN30E-4 (ON)
• Location of electrical component: 13-C
4. Replace SD1.
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: • Gate switch solenoid (SD3)
• Base board (BASEB)
Troubleshooting Guides: 1. Check the connector between SD3-relay CN67-BASEB CN17E for proper connection and correct as necessary.
2. Check the connector of SD3 for proper drive coupling and correct as necessary.
3. SD3 load check
• Check code: 83
• Multi code: 0
• Control signal: BASEB CN17E-12 (ON)
• Location of electrical component: 11-J
4. Replace SD3.
5. Replace BASEB.

Code: C7260
Description: Erase failure
After starting the erase, an error is detected for the malfunction detection signal.
Causes: Erase LED/Y,M,C,K
Troubleshooting Guides: 1. Check the connector between erase LED/Y,M,C,K-relay CN69-BASEB CN17E for proper connection and correct as necessary.
2. Erase LED/Y,M,C,K conduction check
• Control signal: BASEB CN17E-1,2(K)/3,4(C)/5,6(M)/7,8(Y)
• Location of electrical component: 9 to 10-J
3. Replace erase LED/Y,M,C,K.
4. Replace BASEB.

Code: C7301
Description: Power supply cooling fan failure
After starting the fan, an error is detected for the malfunction detection signal.
Causes: • Power supply cooling fan (FM1)
• Base board (BASEB)
Troubleshooting Guides: 1. Check the connector between FM1-relay CN49-BASEB CN20E 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: BASEB CN20E-1 (REM), BASEB CN20E-3 (LOCK)
• Location of electrical component: 1-J
4. Replace FM1.
5. Replace BASEB.

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)
• Base board (BASEB)
Troubleshooting Guides: 1. Check the connector between FM2-relay CN139-relay CN22-BASEB CN15E 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: BASEB CN15E-10 (REM), BASEB CN15E-12 (LOCK)
• Location of electrical component: 16-J
4. Replace FM2.
5. Replace BASEB.

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)
• Base board (BASEB)
Troubleshooting Guides: 1. Check the connector between FM8-relay CN27-BASEB CN12E for proper connection and correct as necessary.
2. Check the connector of FM8 for proper drive coupling and correct as necessary.
3. FM8 load check
• Check code: 42
• Multi code: 4
• Control signal: BASEB CN12E-1 (REM), BASEB CN12E-3 (LOCK)
• Location of electrical component: 4-C
4. Replace FM8.
5. Replace BASEB.

Code: C7501
Description: Tray 2 upper limit sensor failure
The tray 2 upper limit sensor (PS22) does not change even after the lapse of a predetermined period of time after tray 2 is opened and closed, after C-0204 (Tray 2 feeder up/down abnormality) is detected.
Causes: • Tray 2 upper limit sensor (PS22)
• Base board (BASEB)
Troubleshooting Guides: 1. Check the connector between PS22-relay CN55-BASEB CN5E for proper connection and correct as necessary.
2. Replace PS22.
3. Replace BASEB.

Code: C7502
Description: Tray 1 upper limit sensor failure
The tray 1 upper limit sensor (PS25) does not change even after the lapse of a predetermined period of time after tray 1 is opened and closed, after C0202 (Tray 1 feeder up/down abnormality) is detected.
Causes: • Tray 1 upper limit sensor (PS25)
• Base board (BASEB)
Troubleshooting Guides: 1. Check the connector between PS25-relay CN53-BASEB CN5E for proper connection and correct as necessary.
2. Replace PS25.
3. Replace BASEB.

Code: C7601
Description: Power line A1 error
The fuse detection unit detected an error for a predetermined time.
Causes: • Transport motor (M1)
• Base board (BASEB)
Troubleshooting Guides: 1. BASEB F21E conduction check
2. Check the connector between M1-BASEB CN11E for proper connection and correct as necessary.
3. M1 load check
• Check code: 40
• Multi code: 1, 3
• Control signal: BASEB CN11E-1 to 7
• Location of electrical component: 3-C
4. Replace M1.
5. Replace BASEB.

Code: C7602
Description: Power line A2 error
The fuse detection unit detected an error for a predetermined time.
Causes: • IU motor (M2)
• Base board (BASEB)
Troubleshooting Guides: 1. BASEB F22E conduction check
2. Check the connector between M2-BASEB CN12E for proper connection and correct as necessary.
3. M2 load check
• Check code: 41
• Multi code: 1, 3
• Control signal: BASEB CN12E-4 to 10
• Location of electrical component: 5-C
4. Replace M2.
5. Replace BASEB.

Code: C7603
Description: Power line A3 error
The fuse detection unit detected an error for a predetermined time.
Causes: • Fusing motor (M3)
• Base board (BASEB)
Troubleshooting Guides: 1. BASEB F23E conduction check
2. Check the connector between M3-BASEB CN19E for proper connection and correct as necessary.
3. M3 load check
• Check code: 45
• Multi code: 1, 3, 5
• Control signal: BASEB CN11E-8 to 14
• Location of electrical component: 3-C
4. Replace M3.
5. Replace BASEB.

Code: C7604
Description: Power line A4 error
The fuse detection unit detected an error for a predetermined time.
Causes: • High voltage unit (HV)
• Base board (BASEB)
Troubleshooting Guides: 1. BASEB F24E conduction check
2. Check the connector between HV CN1-BASEB CN4E for proper connection and correct as necessary.
3. Replace HV.
4. Replace BASEB.

Code: C7605
Description: Power line A5 error
The fuse detection unit detected an error for a predetermined time.
Causes: Base board (BASEB)
Troubleshooting Guides: 1. BASEB F25E conduction check
2. Replace BASEB.

Code: C7606
Description: Power line A6 error
The fuse detection unit detected an error for a predetermined time.
Causes: • Clean unit drive board (CUDB)
• Base board (BASEB)
Troubleshooting Guides: 1. BASEB F16E conduction check
2. Check the connector between CUDB CN1-BASEB CN29E for proper connection and correct as necessary.
3. Replace CUDB.
4. Replace BASEB.

Code: C7607
Description: Power line A7 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 CN1, CN2-relay CN66-BASEB CN8E for proper connection and correct as necessary.
3. Replace PCCB.
4. Replace BASEB.

Code: C760A
Description: Power line A10 error
The fuse detection unit detected an error for a predetermined time.
Causes: • Polygon motor (M14)
• Total counter (TCT) (Japan models only)
• Key counter (KCT)
• Base board (BASEB)
Troubleshooting Guides: 1. BASEB F12E conduction check
2. Check the connector between TCT-BASEB CN17E for proper connection and correct as necessary. (Japan models only)
3. Check the connector between KCT-relay CN31-BASEB CN14E for proper connection and correct as necessary.
4. Check the connector between the PH unit-relay CN25-BASEB CN9E for proper connection and correct as necessary.
5. Replace the key counter.
6. Replace the PH unit.
7. Replace BASEB.

Code: C760B
Description: Power line A11 error
The fuse detection unit detected an error for a predetermined time.
Causes: • Skew correction motor/C
• Skew correction motor/M
• Skew correction motor/Y
• Base board (BASEB)
Troubleshooting Guides: 1. BASEB F14E conduction check
2. Check the connector between the PH unit-relay CN58-BASEB CN10E for proper connection and correct as necessary.
3. Replace the PH unit.
4. Replace BASEB.

Code: C760E
Description: Power line A14 error
The fuse detection unit detected an error for a predetermined time.
Causes: • Tray 1 lift-up motor (M12)
• Tray 2 lift-up motor (M13)
• Tray 2 paper feed clutch (CL1)
• Tray 2 vertical transport clutch (CL2)
• Tray 1 paper feed clutch (CL3)
• Bypass tray paper feed clutch (CL7)
• Bypass pick-up solenoid (SD1)
• Base board (BASEB)
Troubleshooting Guides: 1. BASEB F13E conduction check
2. Check the connector between M12-BASEB CN7E for proper connection and correct as necessary.
3. Check the connector between M13-BASEB CN7E for proper connection and correct as necessary.
4. Check the connector between CL1-relay CN134-relay CN55-BASEB CN5E for proper connection and correct as necessary.
5. Check the connector between CL2-relay CN135-relay CN55-BASEB CN5E for proper connection and correct as necessary.
6. Check the connector between CL3-relay CN130-relay CN53-BASEB CN5E for proper connection and correct as necessary.
7. Check the connector between CL7-relay CN122-relay CN50-BASEB CN30E for proper connection and correct as necessary.
8. Check the connector between SD1-relay CN123-relay CN50-BASEB CN30E for proper connection and correct as necessary.
9. Replace BASEB.

Code: C760F
Description: Power line A15 error
The fuse detection unit detected an error for a predetermined time.
Causes: • Front door switch (SW2)
• Right door switch (SW3)
• Base board (BASEB)
Troubleshooting Guides: 1. BASEB F1E conduction check
2. Check the connector between SW2-relay CN70-BASEB CN19E for proper connection and correct as necessary.
3. Check the connector between SW3-relay CN70-BASEB CN19E for proper connection and correct as necessary.
4. Replace SW2 or SW3.
5. Replace BASEB.

Code: C7631
Description: Supply power line 1 error
All of the fuse detection units of the same supply power line (24V11) detected an error for a predetermined time.
Causes: • DC power supply (DCPU)
• Base board (BASEB)
Troubleshooting Guides: 1. BASEB F11E, F12E, F13E, F14E, F16E conduction check
2. Check the connector between DCPU CN5-BASEB CN1E for proper connection and correct as necessary.
3. Replace BASEB.
4. Replace DCPU.

Code: C7633
Description: Supply power line 3 error
All of the fuse detection units of the same supply power line (24V21) detected an error for a predetermined time.
Causes: • DC power supply (DCPU)
• Base board (BASEB)
Troubleshooting Guides: 1. BASEB F21E, F22E, F23E, F24E, F25E conduction check
2. Check the connector between DCPU CN5-BASEB CN1E for proper connection and correct as necessary.
3. Replace BASEB.
4. Replace DCPU.

Code: C9401, C9402
Description: • C9401: CIS LED lighting failure (front side)
• C9402: CIS LED lighting abnormally (front side)
• C9401: At the CIS gain adjustment, the machine detected that the output of the CIS LED is lower than the specified value.
• C9402: The average output value of the CIS LED with the scanner at its standby position is a predetermined value or more at the end of a scan job.
Causes: • Flat cable
• CIS module (CIS)
• CPU board (CPUB)
• Base board (BASEB)
Troubleshooting Guides: 1. Check the connector between CIS-BASEB CN2 for proper connection and correct as necessary.
2. Check CPUB for proper installation and correct as necessary.
3. Replace the flat cable.
4. Replace CIS.
5. Replace CPUB.
6. Replace BASEB.

Code: C9701
Description: Front side reading device cable break detection
The cable between the CIS module (CIS) and the base board (BASEB) is break.
Causes: • Flat cable
• CIS module (CIS)
• CPU board (CPUB)
• Base board (BASEB)
Troubleshooting Guides: 1. Check the connector between CIS-BASEB CN2 for proper connection and correct as necessary.
2. Check CPUB for proper installation and correct as necessary.
3. Replace the flat cable.
4. Replace CIS.
5. Replace CPUB.
6. Replace BASEB.

Code: C9702
Description: Back side reading device cable break detection
The cable between the CIS module (CIS) and the base board (BASEB) is break.
Causes: • Flat cable
• CIS module (CIS)
• CPU board (CPUB)
• Base board (BASEB)
Troubleshooting Guides: 1. Check the connector between CIS-BASEB CN2 for proper connection and correct as necessary.
2. Check CPUB for proper installation and correct as necessary.
3. Replace the flat cable.
4. Replace the CIS module.
5. Replace CPUB.
6. Replace BASEB.

Code: CA051, CA052, CA053
Description: • CA051: Standard controller configuration failure
• CA052: Controller hardware error
• CA053: Controller start failure
• CA051: The controller of the CPU board (CPUB) is faulty.
• CA052: A controller hardware error is detected in the network interface.
• CA053: A controller start failure is detected in the controller interface.
Causes: • CPU board (CPUB)
• Base board (BASEB)
Troubleshooting Guides: 1. Check to see if [Service Mode] -> [System 2] -> [Image Controller Setting] has been set to “Controller 0.” If changing the setting, turn OFF the main power switch and turn it ON again after 10 seconds or more.
2. Check the connectors on BASEB for proper connection and correct as necessary.
3. Replace CPUB.
4. Replace BASEB.

Code: CC002
Description: Vendor internal error
Error occurs inside the vendor.
Causes: • Vendor
• CPU board (CPUB)
• Base board (BASEB)
Troubleshooting Guides: 1. Turn OFF the main power switch and unplug the power cord. Connect the power cord after 15 sec. or more, and turn ON the main power switch. Turn OFF and ON the power switch at the vendor side.
2. Check the connector between the vendor-BASEB CN23E for proper connection and correct as necessary.
3. Check CPUB for proper installation and correct as necessary.
4. Replace CPUB.
5. Replace BASEB.
6. Replace the vendor.

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

Code: CC155
Description: (1) When FS-533, FS-539 or FS-539SD is installed
Finisher ROM error
Data of flash ROM of the finishing options is determined to be faulty when the main power switch is turned ON.
Causes: FS control board (FSCB)
Troubleshooting Guides: 1. Turn OFF the main power switch and unplug the power cord. Connect the power cord after 15 sec. or more, and turn ON the main power switch.
2. Rewrite the firmware.
3. Replace FSCB. (FS-533 / FS-539/FS-539SD)

Code: CC155
Description: (2) When JS-506 is installed
Finisher ROM error
Data of flash ROM of the finishing options is determined to be faulty when the main power switch is turned ON.
Causes: JS control board (JSCB)
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 JSCB.

Code: CC156
Description: DF ROM error (When DF-633 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.

Code: CC15B
Description: Flash ROM error (saddle) (When FS-539SD 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, unplug and plug the power cord. Plug the power cord, wait for 10 sec. or more, and turn ON the main power switch.
2. Rewrite the firmware.
3. Replace SDCB.

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

Code: CD070
Description: Storage data copy uncompleted
When copying data from the microSD to the storage board (STRGB), the MFP is restarted from the storage board after an interruption of the copying by turning off the main power switch.
Causes: • microSD
• Storage board (STRGB)
• CPU board (CPUB)
• Base board (BASEB)
Troubleshooting Guides: 1. Rewrite the firmware of STRGB.
2. Replace STRGB.

Code: CD071
Description: microSD startup failure
After copying data from the microSD to the storage board (STRGB), the MFP is restarted up from the microSD.
Causes: • CPU board (CPUB)
• Base board (BASEB)
Troubleshooting Guides: 1. After copying data, mount the STRGB to the origin position.
2. Replace CPUB.
3. Replace BASEB.

Code: CD072
Description: Second-hand SSD or second-hand CPU board installed.
The storage board (STRGB) or CPU board (CPUB) used on other MFPs is installed.
Causes: • Storage board (STRGB)
• CPU board (CPUB)
Troubleshooting Guides: 1. Replace the board with the new STRGB and CPUB. Or, reuse the original STRGB and CPUB.

Code: CD073
Description: Storage type mismatch
The installed storage mismatched with the preset storage.
Causes: • Storage board (STRGB)
• microSD
Troubleshooting Guides: 1. Check the storage type setting, and fix the wrong setting.

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

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

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

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

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

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

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

Code: 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: • CPU board (CPUB)
• Base board (BASEB)
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: 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].
• Imaging unit/Y,M,C
• Developing unit/K
• Drum unit/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: 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.
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: (1) When FS-533, FS-539 or FS-539SD is installed
Finisher Flash ROM device error
An erase error or other device fault occurs during the finisher flash ROM writing.
Causes: FS control board (FSCB)
Troubleshooting Guides: 1. Turn OFF the main power switch and unplug the power cord. Connect the power cord after 15 sec. or more, and turn ON the main power switch.
2. Rewrite the firmware.
3. Replace FSCB. (FS-533 / FS-539/FS-539SD)

Code: CD704
Description: (2) When JS-506 is installed
Finisher Flash ROM device error
An erase error or other device fault occurs during the finisher flash ROM writing.
Causes: JS control board (JSCB)
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 JSCB.

Code: CD705, CD706
Description: • CD705: Mechanical controller sub-CPU flash ROM device error
• CD706: Mechanical controller sub-CPU flash ROM error
• CD705: An erase error or other device fault occurs during mechanical controller sub-CPU flash ROM writing.
• CD706: A data error is determined to exist in the mechanical controller sub-CPU flash ROM during starting.
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. Rewrite the firmware.
3. Replace BASEB.

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 CIS module (CIS).
Causes: • CIS module (CIS)
• CPU board (CPUB)
• Base board (BASEB)
Troubleshooting Guides: 1. Check the connector between CIS-BASEB CN2 for proper connection and correct as necessary.
2. Check CPUB for proper installation and correct as necessary.
3. Rewrite the firmware.
4. Replace the CIS module.
5. Replace CPUB.
6. Replace BASEB.

Code: CE001 … CE009
Description: • CE001: Abnormal message queue
• CE003: Task error
• CE004: Event error
• CE005: Memory access error
• CE006: Header access error
• CE007: DIMM initialize error
• 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: CE012
Description: Failed to receive the entropy from Haveged
The machine fails to receive the entropy from Haveged.
Causes:
Troubleshooting Guides: 1. Turn OFF and ON the main power switch.

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 (8 GB).
Causes: microSD
Troubleshooting Guides: 1. Reboot the machine.
2. To disable Virus Scan Functions.
3. Replace the microSD and replace the STRGB.

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

Code: CE015
Description: Secret information issue error
When starting the machine, the machine fails to issue the secret information.
Causes:
Troubleshooting Guides: 1. Turn OFF and ON the main power switch.

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

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

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

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

Code: CE204
Description: SIP / T.38 library loading failure
Installed an illegal library of SIP/T.38.
Causes:
Troubleshooting Guides: 1. Install a legal library of LK-117.

Code: CE301 … CE305
Description: • CE301: Referring incorrect memory
• CE302: Incorrect command
• CE303: Finished due to error inside Qt library
• CE304: Finished due to error outside Qt library
• CE305: Program forced to stop
• When performing treatment (program) to the firmware controlling the MFP controller, a malfunction is detected when the control sequence went abnormal.
• In almost cases, when the control sequence goes abnormal in certain conditions and on certain timing, it results in malfunction.
Causes:
Troubleshooting Guides: 1. Execute [Self-diag. (Full)]. For details, see “ L.4 Troubleshooting using Self-diag. (Full)”.
2. If the diagnosis result of [Self-diag. (Full)] is OK, since no hardware parts related troubles occur, retrieve the “Machine Management List” and send inquiries to KM also with the information. For details, see “ I.13 List Output”.

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

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

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

Code: CEEE2
Description: Scanner section malfunction
A scanner part is faulty.
Causes: CIS module (CIS)
Troubleshooting Guides: 1. Replace CIS.

Code: CFAxx
Description: Abort code
• When performing treatment (program) to the firmware controlling the MFP controller, a malfunction is detected when the control sequence went abnormal.
• In almost cases, when the control sequence goes abnormal in certain conditions and on certain timing, it results in malfunction.
Causes:
Troubleshooting Guides: 1. Execute [Self-diag. (Full)]. For details, see “ L.4 Troubleshooting using Self-diag. (Full)”. 2. If the diagnosis result of [Self-diag. (Full)] is OK, since no hardware parts related troubles occur, retrieve the “Machine Management List” and send inquiries to KM also with the information. For details, see “ I.13 List Output”.

Code: CFBxx
Description: Abort code
• When performing treatment (program) to the firmware controlling the MFP controller, a malfunction is detected when the control sequence went abnormal.
• In almost cases, when the control sequence goes abnormal in certain conditions and on certain timing, it results in malfunction.
Causes:
Troubleshooting Guides: 1. Execute [Self-diag. (Full)]. For details, see “ L.4 Troubleshooting using Self-diag. (Full)”.
2. If the diagnosis result of [Self-diag. (Full)] is OK, since no hardware parts related troubles occur, retrieve the “Machine Management List” and send inquiries to KM also with the information. For details, see “ I.13 List Output”.

Code: CFCxx
Description: Abort code
• When performing treatment (program) to the firmware controlling the MFP controller, a malfunction is detected when the control sequence went abnormal.
• In almost cases, when the control sequence goes abnormal in certain conditions and on certain timing, it results in malfunction.
Causes:
Troubleshooting Guides: 1. Execute [Self-diag. (Full)]. For details, see “ L.4 Troubleshooting using Self-diag. (Full)”.
2. If the diagnosis result of [Self-diag. (Full)] is OK, since no hardware parts related troubles occur, retrieve the “Machine Management List” and send inquiries to KM also with the information. For details, see “ I.13 List Output”.

Code: CFDxx
Description: Abort code
• When performing treatment (program) to the firmware controlling the MFP controller, a malfunction is detected when the control sequence went abnormal.
• In almost cases, when the control sequence goes abnormal in certain conditions and on certain timing, it results in malfunction.
Causes:
Troubleshooting Guides: 1. Execute [Self-diag. (Full)]. For details, see “ L.4 Troubleshooting using Self-diag. (Full)”.
2. If the diagnosis result of [Self-diag. (Full)] is OK, since no hardware parts related troubles occur, retrieve the “Machine Management List” and send inquiries to KM also with the information. For details, see “ I.13 List Output”.

Code: CFExx
Description: Abort code
• When performing treatment (program) to the firmware controlling the MFP controller, a malfunction is detected when the control sequence went abnormal.
• In almost cases, when the control sequence goes abnormal in certain conditions and on certain timing, it results in malfunction.
Causes:
Troubleshooting Guides: 1. Execute [Self-diag. (Full)]. For details, see “ L.4 Troubleshooting using Self-diag. (Full)”.
2. If the diagnosis result of [Self-diag. (Full)] is OK, since no hardware parts related troubles occur, retrieve the “Machine Management List” and send inquiries to KM also with the information. For details, see “ I.13 List Output”.

Code: CFF
Description: Abort code
• When performing treatment (program) to the firmware controlling the MFP controller, a malfunction is detected when the control sequence went abnormal.
• In almost cases, when the control sequence goes abnormal in certain conditions and on certain timing, it results in malfunction.
Causes:
Troubleshooting Guides: 1. Execute [Self-diag. (Full)]. For details, see “ L.4 Troubleshooting using Self-diag. (Full)”.
2. If the diagnosis result of [Self-diag. (Full)] is OK, since no hardware parts related troubles occur, retrieve the “Machine Management List” and send inquiries to KM also with the information. For details, see “ I.13 List Output”.

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

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

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

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

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

Code: 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, E12-2, E12-3
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
Reason of error PCIe device error
Causes: E12-1, E12-2
CPU board (CPUB)
E12-3
Storage board (STRGB)
CPU board (CPUB)
Troubleshooting Guides: 1. Turn OFF the main power switch and unplug the power cord. Connect the power cord after 15 sec. or more, and turn ON the main power switch.
2. Correct the mounting of STRGB if faulty.
3. Correct the mounting of CPUB if faulty.
4. Replace STRGB.
5. Replace CPUB.

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

Code: P-6, P-7, P-8, P-9
Description: Imaging unit (C) failure, Imaging unit (M) failure, Imaging 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 (IDC sensor photo receiver output) or more during max. density adjustment (Vg/Vdc adjustment).
Causes: • Imaging unit/Y,M,C
• Drum unit/K
• Developing unit/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 [Imaging Process Adjustment] and, if it is negative, readjust.
2. Check the drive transmission portion of the imaging unit or 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 imaging unit or drum/developing unit connector if dirty.
5. Check the HV connector for proper connection and correct as necessary.
6. Replace the imaging unit/Y,M,C.
7. Replace the drum unit/K.
8. Replace the developing unit/K.
9. Replace the transfer belt unit.
10. Replace HV.
11. Replace BASEB.

Code: S-1
Description: CCD gain adjustment failure
It is detected that the CCD clamp gain adjustment value is faulty.
Causes: • CIS module (CIS)
• Base board (BASEB)
Troubleshooting Guides: 1. Correct the harness connection between CIS-BASEB CN2 if faulty.
2. Check for possible extraneous light and correct as necessary.
3. Replace CIS.
4. Replace BASEB.

Code: S-2
Description: CIS gain adjustment failure
It is detected that the CIS clamp gain adjustment value is faulty.
Causes: • CIS module (CIS)
• CPU board (CPUB)
• Base board (BASEB)
Troubleshooting Guides: Procedure
1. Correct the connector connection between CIS CN2-BASEB CN5 if faulty.
2. Check CPUB for proper installation and correct as necessary.
3. Check for possible extraneous light and correct as necessary.
4. Wipe clean the back side scanning glass surface and shading sheet.
5. Replace CIS.
6. Replace CPUB.
7. Replace BASEB.

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

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

Contact us to get support with Konica-Minolta bizhub C257i Error case

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

[SOLVED] Quick fix Konica-Minolta C257i list error codes