[SOLVED] Quick fix Konica-Minolta C287i list error codes

– Compatible Printer model: Konica-Minolta bizhub C287i
– Konica-Minolta bizhub C287i Error Codes with quick guides:

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: 66-54
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: 72-23
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: 72-85
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: 99-07
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: 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.

Quick fix Konica-Minolta C287i list error codes

Solve Konica-Minolta bizhub C287i Error codes

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

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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[SOLVED] Quick fix Konica-Minolta C287i list error codes