[SOLVED] Quick fix Konica-Minolta 950 pro list error codes

– Compatible Printer model: Konica-Minolta bizhub 950 pro
– Konica-Minolta bizhub 950 pro Error Codes with quick guides:

Code: C-0001
Description: I/O initial communication check in the printer control board (PRCB). Main body drive serial input abnormality 1. Within a specified period of time after the power ON ACK, a serial data is not received from the main body drive unit.
Causes: Printer control board (PRCB)

Code: C-0002
Description: Main body drive serial input abnormality 2. Within a specified period of time after the power ON ACK, a serial data is not received from the main body drive unit.
Causes: Printer control board (PRCB)

Code: C-0003
Description: Main body drive serial input abnormality 3. Within a specified period of time after the power ON ACK, a serial data is not received from the main body drive unit.
Causes: Printer control board (PRCB)

Code: C-0004
Description: Main body drive serial input abnormality 4. Within a specified period of time after the power ON ACK, a serial data is not received from the main body drive unit.
Causes: Printer control board (PRCB)

Code: C-0005
Description: Main body drive serial input abnormality 5. Within a specified period of time after the power ON ACK, a serial data is not received from the main body drive board.
Causes: Printer control board (PRCB)

Code: C-0010
Description: Communication error check between the printer engine system boards. Drive communication reception error detection abnormality. A reception error interruption occurs while in the drive board serial data reception. Or, due to the occurrence of the data checksum error/ID information error, a retransmission request is made 3 times and an error is detected on the 4th time.
Causes: Confirmation of the wiring harness and the connector ADU drive board (ADUDB) LU drive board (LUDB) Printer control board (PRCB)

Code: C-0020
Description: Initial communication check between the ADU drive board (ADUDB)/ printer control board (PRCB). ADU drive serial input abnormality 1. Within a specified period of time after the ACK at the time of the main power switch (SW1) being turned ON, a serial data from ID = 0 of the ADUDB is not received.
Causes: Confirmation of the wiring harness and the connector ADU drive board (ADUDB) Printer control board (PRCB)

Code: C-0021
Description: Communication error check between the ADU drive board (ADUDB)/ printer control board (PRCB). ADU drive serial input abnormality 2. Within a specified period of time after the ACK at the time of the main power switch (SW1) being turned ON, a serial data from ID = 7 of the ADUDB is not received.
Causes: Confirmation of the wiring harness and the connector ADU drive board (ADUDB) Printer control board (PRCB)

Code: C-0022
Description: Initial communication check between the ADU drive board (ADUDB)/ printer control board (PRCB). ADU drive serial input abnormality 3. Within a specified period of time after the ACK at the time of the main power switch (SW1) being turned ON, a serial data from ID = 9 of the ADUDB is not received.
Causes: Confirmation of the wiring harness and the connector ADU drive board (ADUDB) Printer control board (PRCB)

Code: C-0101
Description: An abnormal speed signal of the paper feed motor (M4) is checked. An error detection signal is detected twice in succession a specified period of time after M4 was turned ON (the first signal is ignored).
Causes: Confirmation of the wiring harness and the connector Paper feed motor (M4) Printer control board (PRCB)

Code: C-0102
Description: An abnormal speed signal of the paper feed motor (M101) is checked. An error detection signal is detected twice in succession a specified period of time after M101 was turned ON (the first signal is ignored).
Causes: Confirmation of the wiring harness and the connector Paper feed motor (M101) Printer control board (PRCB)

Code: C-0104
Description: The 24V power source for SD/CL in the printer control board (PRCB) is checked. At the start, an error detection signal (blowout of ICP for the solenoid/clutch) is detected, and an error detection signal (24V cut off) is also detected.
Causes: Confirmation of the wiring harness and the connector Wiring harness earth fault Printer control board (PRCB) DC power supply /2 (DCPS2)

Code: C-0105
Description: The blowout of ICP for the SD/CL in the printer control board (PRCB) is checked. At the start, an error detection signal (blowout of ICP for the solenoid/clutch) is detected. However, an error detection signal (24V cut off) is not detected.
Causes: Loose connection (on PRCB) Solenoid (SD5 to SD10, SD4, SD11) Clutch (CL3 to CL8, CL9, CL10) Wiring harness earth fault Printer control board (PRCB)

Code: C-0210
Description: The locking of the paper lift motor /1 (M19) is detected. An error detection signal of M19 is detected while M19 is ON.
Causes: Tray 1 paper improperly loaded Tray 1 rear end restriction plate misaligned Confirmation of the wiring harness and the connector Paper lift motor /1 (M19) Upper limit sensor /1 (PS20) Printer control board (PRCB) DC power supply /2 (DCPS2)

Code: C-0211#
Description: When the upper limit sensor /1 (PS20) is OFF, PS20 does not turn ON within a specified period of time after the paper lift motor / 1 (M19) turns ON for lifting operation. And at this time, an error detection signal (24V cut off) is detected.
Causes: Tray 1 paper improperly loaded Tray 1 rear end restriction plate misaligned Confirmation of the wiring harness and the connector Paper lift motor /1 (M19) Upper limit sensor /1 (PS20) Printer control board (PRCB) DC power supply /2 (DCPS2)

Code: C-0212#
Description: When the upper limit sensor /1 (PS20) is OFF, PS20 does not turn ON within a specified period of time after the paper lift motor / 1 (M19) turns ON for lifting operation. At this time, an error detection signal (blowout of ICP) is detected.
Causes: Tray 1 paper improperly loaded Tray 1 rear end restriction plate misaligned Confirmation of the wiring harness and the connector Paper lift motor /1 (M19) Upper limit sensor /1 (PS20) Printer control board (PRCB) DC power supply /2 (DCPS2)

Code: C-0213#
Description: When the upper limit sensor /1 (PS20) is OFF, PS20 does not turn ON within a specified period of time after the paper lift motor / 1 (M19) turns ON for lifting operation. And at this time, an error detection signal is not detected.
Causes: Tray 1 paper improperly loaded Tray 1 rear end restriction plate misaligned Confirmation of the wiring harness and the connector Paper lift motor /1 (M19) Upper limit sensor /1 (PS20) Printer control board (PRCB) DC power supply /2 (DCPS2)

Code: C-0220
Description: The locking of the paper lift motor /2 (M20) is detected. When M20 is ON, an error detection signal of the M20 is detected.
Causes: Tray 2 paper improperly loaded Tray 2 rear end restriction plate misaligned Confirmation of the wiring harness and the connector Paper lift motor /2 (M20) Upper limit sensor /1 (PS21) Printer control board (PRCB) DC power supply /2 (DCPS2)

Code: C-0221#
Description: When the upper limit sensor /2 (PS21) is OFF, PS21 does not turn ON within a specified period of time after the paper lift motor / 2 (M20) turns ON for lifting operation. And at this time, an error detection signal (24V cut off) is detected.
Causes: Tray 2 paper improperly loaded Tray 2 rear end restriction plate misaligned Confirmation of the wiring harness and the connector Paper lift motor /2 (M20) Upper limit sensor /1 (PS21) Printer control board (PRCB) DC power supply /2 (DCPS2)

Code: C-0222#
Description: When the upper limit sensor /2 (PS21) is OFF, PS21 does not turn ON within a specified period of time after the paper lift motor / 2 (M20) turns ON for lifting operation. And at this time, an error detection signal (blowout of ICP) is detected.
Causes: Tray 2 paper improperly loaded Tray 2 rear end restriction plate misaligned Confirmation of the wiring harness and the connector Paper lift motor /2 (M20) Upper limit sensor /1 (PS21) Printer control board (PRCB) DC power supply /2 (DCPS2)

Code: C-0223#
Description: When the upper limit sensor /2 (PS21) is OFF, PS21 does not turn ON within a specified period of time after the paper lift motor / 2 (M20) turns ON for lifting operation. And at this time, an error detection signal is not detected.
Causes: Tray 2 paper improperly loaded Tray 2 rear end restriction plate misaligned Confirmation of the wiring harness and the connector Paper lift motor /2 (M20) Upper limit sensor /1 (PS21) Printer control board (PRCB) DC power supply /2 (DCPS2)

Code: C-0230
Description: The locking of the paper lift motor /3 (M21) is detected. When M21 is ON, an error detection signal of the M21 is detected.
Causes: Tray 3 paper improperly loaded Tray 3 rear end restriction plate misaligned Confirmation of the wiring harness and the connector Paper lift motor /3 (M21) Upper limit sensor /1 (PS22) Printer control board (PRCB) DC power supply /2 (DCPS2)

Code: C-0231#
Description: When the upper limit sensor /3 (PS22) is OFF, PS22 does not turn ON within a specified period of time after the paper lift motor / 3 (M21) turns ON for lifting operation. And at this time, an error detection signal (24V cut off) is detected.
Causes: Tray 3 paper improperly loaded Tray 3 rear end restriction plate misaligned Confirmation of the wiring harness and the connector Paper lift motor /3 (M21) Upper limit sensor /1 (PS22) Printer control board (PRCB) DC power supply /2 (DCPS2)

Code: C-0232#
Description: When the upper limit sensor /3 (PS22) is OFF, PS22 does not turn ON within a specified period of time after the paper lift motor / 3 (M21) turns ON for lifting operation. And at this time, an error detection signal (blowout of ICP) is detected.
Causes: Tray 3 paper improperly loaded Tray 3 rear end restriction plate misaligned Confirmation of the wiring harness and the connector Paper lift motor /3 (M21) Upper limit sensor /1 (PS22) Printer control board (PRCB) DC power supply /2 (DCPS2)

Code: C-0233#
Description: When the upper limit sensor /3 (PS22) is OFF, PS22 does not turn ON within a specified period of time after the paper lift motor / 3 (M21) turns ON for lifting operation. And at this time, an error detection signal is not detected.
Causes: Tray 3 paper improperly loaded Tray 3 rear end restriction plate misaligned Confirmation of the wiring harness and the connector Paper lift motor /3 (M21) Upper limit sensor /1 (PS22) Printer control board (PRCB) DC power supply /2 (DCPS2)

Code: C-0240
Description: The locking of the paper lift motor (M100) is detected. When the paper lift motor (M100) is ON, an error detection signal of M100 is detected in succession for 1 second.
Causes: Confirmation of the wiring harness and the connector Paper lift motor (M100) Lower limit sensor (PS101) Upper limit sensor (PS109) LU drive board (LUDB) DC power supply /2 (DCPS2)

Code: C-0241#
Description: When the upper limit sensor (PS109) or the lower limit sensor (PS101) is OFF, PS109 or PS101 does not turn ON within a specified period of time after the paper lift motor (M100) turns ON for its lifting or lowering operation. And at this time, an error detection signal (24V cut off) is detected.
Causes: Confirmation of the wiring harness and the connector Paper lift motor (M100) Lower limit sensor (PS101) Upper limit sensor (PS109) LU drive board (LUDB) DC power supply /2 (DCPS2)

Code: C-0242#
Description: When the upper limit sensor (PS109) or the lower limit sensor (PS101) is OFF, PS109 or PS101 does not turn ON within a specified period of time after the paper lift motor (M100) turns ON for its lifting or lowering operation. At this time, an error detection signal is detected.
Causes: Confirmation of the wiring harness and the connector Paper lift motor (M100) Lower limit sensor (PS101) Upper limit sensor (PS109) LU drive board (LUDB) DC power supply /2 (DCPS2)

Code: C-0243#
Description: When the upper limit sensor (PS109) or the lower limit sensor (PS101) is OFF, PS109 or PS101 does not turn ON within a specified period of time after the paper lift motor (M100) turns ON for its lifting or lowering operation. And at this time, an error detection signal is not detected.
Causes: Confirmation of the wiring harness and the connector Paper lift motor (M100) Lower limit sensor (PS101) Upper limit sensor (PS109) LU drive board (LUDB) DC power supply /2 (DCPS2)

Code: C-0251#
Description: When the upper limit sensor / bypass (PS23) or the lower limit sensor /bypass (PS43) is OFF, PS23 or PS43 does not turn ON within a specified period of time after the bypass tray lift motor (M22) turns ON for its lifting or lowering operation. And at this time, an error detection signal (24V cut off) is detected.
Causes: Confirmation of the wiring harness and the connector Bypass tray lift motor (M22) Upper limit sensor /Bypass (PS23) Lower limit sensor /Bypass (PS43) Printer control board (PRCB) DC power supply /2 (DCPS2)

Code: C-0252#
Description: When the upper limit sensor / bypass (PS23) or the lower limit sensor /bypass (PS43) is OFF, PS23 or PS43 does not turn ON within a specified period of time after the bypass tray lift motor (M22) turns ON for its lifting or lowering operation. And at this time, an error detection signal (blowout of ICP) is detected.
Causes: Confirmation of the wiring harness and the connector Bypass tray lift motor (M22) Upper limit sensor /Bypass (PS23) Lower limit sensor /Bypass (PS43) Printer control board (PRCB) DC power supply /2 (DCPS2)

Code: C-0253#
Description: When the upper limit sensor / bypass (PS23) or the lower limit sensor /bypass (PS43) is OFF, PS23 or PS43 does not turn ON within a specified period of time after the bypass tray lift motor (M22) turns ON for its lifting or lowering operation. And at this time, an error detection signal is not detected.
Causes: Confirmation of the wiring harness and the connector Bypass tray lift motor (M22) Upper limit sensor /Bypass (PS23) Lower limit sensor /Bypass (PS43) Printer control board (PRCB) DC power supply /2 (DCPS2)

Code: C-0301
Description: The rotation of the conveyance suction fan (FM2) is checked, and the 24V power source is also checked. An abnormal FM2 EM signal condition occurs a specified period of time after FM2 is turned ON. This abnormal condition recurs even a specified period of time after FM12 is turned OFF and then turned ON, and an error detection signal (24V cut off) is detected.
Causes: Confirmation of the wiring harness and the connector Conveyance suction fan (FM2) AC drive board (ACDB) DC power supply /2 (DCPS2)

Code: C-0302
Description: The blowout of ICP for the conveyance suction fan (FM2) in the AC drive board (ACDB) is checked. An abnormal condition occurs with the FM2 EM signal a specified period of time after FM2 is turned ON. This abnormal condition recurs even a specified period of time after FM2 is turned OFF and then turned ON, and an error detection signal (blowout of ICP) is detected.
Causes: Confirmation of the wiring harness and the connector Conveyance suction fan (FM2) AC drive board (ACDB) DC power supply /2 (DCPS2)

Code: C-0303
Description: The rotation of the conveyance suction fan (FM2) is checked. An abnormal condition occurs with the FM2 EM signal a specified period of time after FM2 is turned ON. This abnormal condition recurs even a specified period of time after FM2 is turned OFF and then turned ON, and an error detection signal (24V cut off/ blowout of ICP) is not detected.
Causes: Confirmation of the wiring harness and the connector Conveyance suction fan (FM2) AC drive board (ACDB) DC power supply /2 (DCPS2)

Code: C-0304
Description: Rotation of paper exit cooling fan /Lw1 (FM13), /Lw2 (FM14) is checked. An abnormal condition occurs with the FM13, FM14 EM signal a specified period of time after FM 13, FM14 is turned ON. This abnormal condition is detected even a specified period of time after FM13, FM14 is turned OFF and then turned ON.
Causes: Confirmation of the wiring harness and the connector Paper exit cooling fan /Lw1 (FM13) Paper exit cooling fan /Lw2 (FM14) Printer control board (PRCB)

Code: C-0305
Description: Rotation of paper exit cooling fan /Up1 (FM15), /Up2 (FM17) is checked. An abnormal condition occurs with the FM15, FM17 EM signal a specified period of time after FM 15, FM17 is turned ON. This abnormal condition is detected even a specified period of time after FM15, FM17 is turned OFF and then turned ON.
Causes: Confirmation of the wiring harness and the connector Paper exit cooling fan /Up1 (FM15) Paper exit cooling fan /Up2 (FM17) Printer control board (PRCB)

Code: C-0306
Description: The blowout of ICP for the paper exit cooling fans /Lw1 (FM13), / Lw2 (FM14), /Up1 (FM15) and / Up2 (FM17) is detected. An abnormal condition occurs either with the FM13 EM signal and the FM14 EM signal a specified period of time after FM13 and FM14 are turned ON or with the FM15 EM signal and the FM17 EM signal a specified period of time after FM15 and FM17 are turned ON. With this abnormal condition, an error detection signal (blowout of ICP) is detected and the door close is detected 5 times in succession.
Causes: Confirmation of the wiring harness and the connector Paper exit cooling fan /Lw1 (FM13) Paper exit cooling fan /Lw2 (FM14) Paper exit cooling fan /Up1 (FM15) Paper exit cooling fan /Up2 (FM17) Printer control board (PRCB)

Code: C-0307
Description: The rotation of the developing cooling fan (FM19) is checked, and the 24V power source is also checked. An abnormal condition occurs with the FM19 EM signal a specified period of time after FM19 is turned ON. This abnormal condition recurs even a specified period of time after FM is turned OFF and then ON again, and an error detection signal (24V cut off) is detected.
Causes: Confirmation of the wiring harness and the connector DC power supply /2 (DCPS2) Printer control board (PRCB)

Code: C-0308
Description: The blowout of ICP for the developing cooling fan (FM19) is checked. An abnormal condition occurs with the FM19 EM signal a specified period of time after FM19 is turned ON. This abnormal condition recurs even a specified period of time after FM is turned OFF and then ON again, and an error detection signal (blowout of ICP) is detected. However, an error detection signal (24V cut off) is not detected.
Causes: Confirmation of the wiring harness and the connector DC power supply /2 (DCPS2) Printer control board (PRCB)

Code: C-0309
Description: The rotation of the developing cooling fan (FM19) is checked. An abnormal condition occurs with the FM19 EM signal a specified period of time after FM19 is turned ON. This abnormal condition recurs even a specified period of time after FM19 is turned OFF and then ON again, and an error detection signal (24V cut off/blowout of ICP) is not detected.
Causes: Confirmation of the wiring harness and the connector DC power supply /2 (DCPS2) Printer control board (PRCB)

Code: C-0310
Description: Rotation of paper exit cooling fan /Lw1 (FM13), /Lw2 (FM14) is checked. An abnormal condition occurs with the FM13, FM14 EM signal a specified period of time after FM13, FM 14 is turned ON. This abnormal condition is detected even a specified period of time after FM13, FM14 is turned OFF and then ON again.
Causes: Confirmation of the wiring harness and the connector Paper exit cooling fan /Lw1 (FM13) Paper exit cooling fan /Lw2 (FM14) Printer control board (PRCB)

Quick fix Konica-Minolta 950 pro list error codes

Solve Konica-Minolta bizhub 950 pro Error codes

Code: C-0311
Description: Rotation of paper exit cooling fan /Up1 (FM15), /Up2 (FM17) is checked. An abnormal condition occurs with the FM15, FM17 EM signal a specified period of time after FM15, FM 17 is turned ON. This abnormal condition is detected even a specified period of time after FM15, FM17 is turned OFF and then ON again.
Causes: Confirmation of the wiring harness and the connector Paper exit cooling fan /Up1 (FM15) Paper exit cooling fan /Up2 (FM17) Printer control board (PRCB)

Code: C-0401
Description: The blowout of a 12V ICP for the AC drive board (ACDB) is checked. In the serial initial communication, a signal of the blowout of a 12V ICP (AC drive) is detected.
Causes: Confirmation of the wiring harness and the connector AC drive board (ACDB)

Code: C-0402
Description: The blowout of a 5V ICP for the AC drive board (ACDB) is checked. In the serial initial communication, a signal of the blowout of a 5V ICP (AC drive) is detected.
Causes: Confirmation of the wiring harness and the connector (ACDB) AC drive board (ACDB)

Code: C-0403
Description: The 12V power source in the printer control board (PRCB) is checked. An error detection signal of the 12V in PRCB is detected.
Causes: Confirmation of the wiring harness and the connector Printer control board (PRCB) DC power supply /1 (DCPS1)

Code: C-0410
Description: 12V ICP blowout in the ADU drive board (ADUDB). A -5V ICP blowout signal and blowout of a 12V ICP signal are detected for the serial initial communication.
Causes: Confirmation of the wiring harness and the connector ADU drive board (ADUDB) DC power supply /2 (DCPS2)

Code: C-0411
Description: 24V power source of the ADU drive board is checked. At the start, an error detection signal (blowout of ICP for the transfer exposure lamp/solenoid) is detected, and an error detection signal (24V cut off) is detected.
Causes: Confirmation of the wiring harness and the connector Centering sensor (PS1) Transfer exposure lamp (EL2) ADU lock solenoid (SD1) Reverse/exit solenoid (SD2) Fusing solenoid (SD3) ADU drive board (ADUDB) DC power supply /2 (DCPS2)

Code: C-0412
Description: At the start, an error detection signal (blowout of the ICP for the transfer exposure lamp/solenoid) is detected. However, an error detection signal (24V cut off) is not detected.
Causes: Confirmation of the wiring harness and the connector Centering sensor (PS1) Transfer exposure lamp (EL2) ADU lock solenoid (SD1) Reverse/exit solenoid (SD2) Fusing solenoid (SD3) ADU drive board (ADUDB) DC power supply /2 (DCPS2)

Code: C-1001
Description: Communication error.
Causes: Confirmation of the wiring harness and the connector FS control board (FSCB) Printer control board (PRCB: main body)

Code: C-1002
Description: Start-up response error.
Causes: Confirmation of the wiring harness and the connector FS control board (FSCB) Printer control board (PRCB: main body)

Code: C-1012
Description: Communication error.
Causes: Confirmation of the wiring harness and the connector Printer control board (PRCB) Punch Controller PCB

Code: C-1047
Description: Communication abnormality between FS-PK.
Causes: Confirmation of the wiring harness and the connector PK drive board (PDB) FS control board (FSCB)

Code: C-1091
Description: Communication error when the sub CPU in the FS control board (FSCB) is receiving data.
Causes: Confirmation of the wiring harness and the connector FS control board (FSCB)

Code: C-1092
Description: Communication error when the main CPU in the FS control board (FSCB) is receiving data.
Causes: Confirmation of the wiring harness and the connector FS control board (FSCB)

Code: C-1101
Description: The shift unit does not get to the shift position or the HP within a specified period of time.
Causes: Confirmation of the wiring harness and the connector Confirmation of the shift unit drive parts Shift roller home sensor (PS18) Shift roller motor (M2) FS control board (FSCB)

Code: C-1102
Description: After start-up of the main tray up/ down motor (M3) operation, the main tray upper limit sensor (PS2) or the stapler paper exit upper limit sensor (PS7) does not turn ON within a specified period of time.
Causes: Confirmation of the wiring harness and the connector Confirmation of the main tray drive parts Main tray upper limit sensor (PS2) Stapler paper exit upper limit sensor (PS7) Main tray up/down motor (M3) FS control board (FSCB)

Code: C-1103
Description: After start-up of the alignment motor /Up (M5) operation, the alignment home sensor /Up (PS8) does not turn OFF within a specified period of time. Or, it does not turn ON after being turned OFF.
Causes: Confirmation of the wiring harness and the connector Confirmation of the alignment plate drive parts Alignment plate home sensor /Up (PS8) Alignment motor /Up (M5) Relay board (RB) FS control board (FSCB)

Code: C-1105
Description: After start-up of the paper exit opening motor (M8) operation, the open/close operation is not completed within a specified period of time. (The paper exit opening home sensor (PS12) does not turn ON or OFF. )
Causes: Confirmation of the wiring harness and the connector Confirmation of the exit opening drive parts Paper exit opening home sensor (PS12) Paper exit opening motor (M8) FS control board (FSCB)

Code: C-1106
Description: After start-up of the stapler movement motor (M11) operation, the stapler movement home sensor (PS11) does not turn OFF. Or, it does not turn ON after being turned OFF.
Causes: Confirmation of the wiring harness and the connector Confirmation of the stapler movement parts Stapler movement home sensor (PS11) Stapler movement motor (M11) Relay board (RB) FS control board (FSCB)

Code: C-1107
Description: Stapler rotation motor (M6) abnormality. (FS-611 only)
Causes: Confirmation of the wiring harness and the connector Confirmation of the stapler rotation parts Stapler rotation motor (M6) Relay board (RB) FS control board (FSCB)

Code: C-1108
Description: Stapler /Rr rotation abnormality. (FS-611 only)
Causes: Confirmation of the wiring harness and the connector Confirmation of the stapler / Rr rotation parts Stapler rotation home sensor (PS13) Relay board (RB) FS control board (FSCB)

Code: C-1109
Description: After start-up of the paper exit belt motor (M400) operation, the paper exit belt home sensor (PS9) does not turn ON within a specified period of time.
Causes: Confirmation of the wiring harness and the connector Confirmation of the driving parts of the conveyance belt Paper exit belt motor (M400) FS control board (FSCB)

Code: C-1111
Description: The stapler motor home sensor /Fr (PS31) does not turn ON within a specified period of time after the stapler motor /Fr (M14) starts operations. (FS-528) Within a specified period of time after the start-up of the clincher motor /Fr (M15) or stapler motor /Fr (M14) operation, the clincher home sensor / Fr (PS33) or the stapler home sensor /Fr (PS31) does not turn ON. (FS-611)
Causes: Confirmation of the wiring harness and the connector Replacement of the stapler / Fr Relay board (RB) FS control board (FSCB)

Code: C-1112
Description: The stapler motor home sensor / Rr (PS30) does not turn ON within a specified period of time after the stapler motor /Rr (M9) starts operations. (FS-528) Within a specified period of time after the start-up of the clincher motor /Rr (M10) or stapler motor / Rr (M9) operation, the clincher home sensor /Rr (PS32) or the stapler home sensor /Rr (PS30) does not turn ON. (FS-611)
Causes: Confirmation of the wiring harness and the connector Replacement of the stapler / Rr Relay board (RB) FS control board (FSCB)

Code: C-1113
Description: The clincher home sensor /Fr (PS33) does not turn ON within a specified period of time after the clincher motor /Fr (M15) starts operation. (FS-611)
Causes: Confirmation of the wiring harness and the connector Replacement of the stapler / Fr Relay board (RB) FS control board (FSCB)

Code: C-1114
Description: The clincher home sensor /Rr (PS32) does not turn ON within a specified period of time after the clincher motor /Rr (M10) starts operation. (FS-611)
Causes: Confirmation of the wiring harness and the connector Replacement of the stapler / Rr Relay board (RB) FS control board (FSCB)

Code: C-1115
Description: Within a specified period of time after the start-up of the FS conveyance motor (M1) operation, the motor does not get to the predetermined speed.
Causes: Confirmation of the wiring harness and the connector Confirmation of the conveyance drive parts FS conveyance motor (M1) FS control board (FSCB)

Code: C-1121
Description: After the saddle stitching stopper motor (M18) starts the home position detection operation, the saddle stitching stopper home sensor (PS23) does not turn ON within a specified period of time. (FS-611 only)
Causes: Confirmation of the wiring harness and the connector Confirmation of the saddle stitcher stopper drive parts Saddle stitching stopper home sensor (PS23) Saddle stitching stopper motor (M18) Relay board (RB) FS control board (FSCB)

Code: C-1122
Description: After the alignment motor /Lw (M16) starts the home position detection operation, the alignment plate home sensor /Lw (PS24) does not turn ON within a specified period of time. (FS-611 only)
Causes: Confirmation of the wiring harness and the connector Confirmation of the alignment plate /Lw drive parts Alignment plate home sensor /Lw (PS24) Alignment motor /Lw (M16) Relay board (RB) FS control board (FSCB)

Code: C-1125
Description: After the folding blade motor (M19) starts the home position detection operation, the folding blade home sensor /Lw (PS22) does not turn ON within a specified period of time. (FS-611 only)
Causes: Confirmation of the wiring harness and the connector Confirmation of the folding blade drive parts Folding blade home sensor (PS22) Folding blade motor (M19) Relay board (RB) FS control board (FSCB)

Code: C-1126
Description: After start-up of the folding conveyance motor (M20) operation, the M20 does not get to the predetermined speed within a specified period of time. (FS-611 only)
Causes: Confirmation of the wiring harness and the connector Confirmation of the folding transfer drive parts Folding transfer motor (M20) Relay board (RB) FS control board (FSCB)

Code: C-1131
Description: After start-up of the conveyance motor (M101) operation, the M101 does not get to the predetermined speed within a specified period of time.
Causes: Confirmation of the wiring harness and the connector Confirmation of the trimming conveyance drive parts Conveyance motor (M101) TU drive board (TUDB)

Code: C-1132
Description: After the blade motor (M102) starts the home position detection operation, the blade home switch (MS101) does not turn ON within a specified period of time.
Causes: Confirmation of the wiring harness and the connector Confirmation of the blade drive parts Blade home switch (MS101) Blade motor (M102) TU drive board (TUDB)

Code: C-1133
Description: After the stopper motor (M103) starts the home position detection operation, the stopper home sensor (PS103) does not turn ON within a specified period of time.
Causes: Confirmation of the wiring harness and the connector Confirmation of the stopper drive parts Stopper home sensor (PS103) Stopper motor (M103) TU drive board (TUDB)

Code: C-1134
Description: After the stopper release motor (M104) starts the home position detection operation, the stopper release home sensor (PS104) does not turn ON within a specified period of time.
Causes: Confirmation of the wiring harness and the connector Confirmation of the stopper release drive parts Stopper release home sensor (PS104) Stopper release motor (M104) TU drive board (TUDB)

Code: C-1135
Description: After the press motor (M105) starts the home position detection operation, the press home sensor (PS105) does not turn ON within a specified period of time.
Causes: Confirmation of the wiring harness and the connector Confirmation of the press drive parts Press home sensor (PS105) Press motor (M105) TU drive board (TUDB)

Code: C-1136
Description: After the pusher motor (M107) starts the home position detection operation, the pusher home sensor (PS112) does not turn ON within a specified period of time.
Causes: Confirmation of the wiring harness and the connector Confirmation of the pusher drive parts Pusher home sensor (PS112) Pusher motor (M107) TU drive board (TUDB)

Code: C-1137
Description: After the holder motor (M106) starts the home position detection operation, the upper limit sensor (PS110) does not turn ON within a specified period of time.
Causes: Confirmation of the wiring harness and the connector Confirmation of the holder drive parts Upper limit sensor (PS110) Holder motor (M106) TU drive board (TUDB)

Code: C-1141
Description: After start-up of the tray lift motor /Lw (M202) operation, the tray lower limit sensor /Lw (PS210) does not turn ON within a specified period of time.
Causes: Confirmation of the wiring harness and the connector Confirmation of the tray /Lw drive parts Tray lower limit sensor /Lw (PS210) Tray lift motor /Lw (M202) PI drive board (PIDB) FS control board (FSCB)

Code: C-1142
Description: After start-up of the tray lift motor /Up (M201) operation, the tray upper limit sensor /Up (PS204) does not turn ON within a specified period of time.
Causes: Confirmation of the wiring harness and the connector Confirmation of the tray /Up drive parts Tray upper limit sensor /Up (PS204) Tray lift motor /Up (M201) PI drive board (PIDB) FS control board (FSCB)

Code: C-1143
Description: After the conveyance motor (M203) turns ON, the M203 does not get to the predetermined speed within a specified period of time.
Causes: Confirmation of the wiring harness and the connector Transfer motor (M203) PI drive board (PIDB) FS control board (FSCB)

Code: C-1144
Description: After the punch shift motor (M802) starts the home position search, the punch shift home sensor (PS803) does not turn ON even when a specified period of time elapses.
Causes: Confirmation of the wiring harness and the connector Punch shift home sensor (PS803) Punch shift motor (M802) Punch drive board (PDB) FS control board (FSCB)

Code: C-1152
Description: After the 1st stopper motor (M2) starts the home position search, the 1st stopper home sensor (PS3) does not turn ON even when a specified period of time elapses.
Causes: Confirmation of the wiring harness and the connector Confirmation of the 1st stopper drive parts 1st stopper home sensor (PS3) 1st stopper motor (M2) ZU control board (ZUCB)

Code: C-1153
Description: After the 2nd stopper motor (M3) starts the home position search, the 2nd stopper home sensor (PS4) does not turn ON even when a specified period of time elapses.
Causes: Confirmation of the wiring harness and the connector Confirmation of the 2nd stopper drive parts 2nd stopper home sensor (PS4) 2nd stopper motor (M3) ZU control board (ZUCB)

Code: C-1154
Description: The punch home sensor (PS801) does not turn OFF within a specified period of time after the punch motor (M801) starts operation.
Causes: Confirmation of the wiring harness and the connector Confirmation of the punch drive parts Punch home sensor (PS801) Punch motor (M801) Punch drive board (PDB) FS control board (FSCB)

Code: C-1155
Description: After the punch shift motor (M5) starts the home position search, the punch shift home sensor (PS5) does not turn ON even when a specified period of time elapses.
Causes: Confirmation of the wiring harness and the connector Confirmation of the punch shift drive parts Punch shift home sensor (PS5) Punch shift motor (M5) ZU control board (ZUCB)

Code: C-1157
Description: After the punch motor (M4) turns on, the punch operation is not completed even when a specified period of time elapses. (The punch home sensor (PS6) does not turn OFF, or it does not turn ON after being turned OFF. )
Causes: Confirmation of the wiring harness and the connector Confirmation of the punch drive parts Punch home sensor (PS6) Punch clutch (CL1) Punch motor (M4) ZU control board (ZUCB)

Code: C-1158
Description: After the punch switching motor (M8) starts the home position search, the punch switching switch (MS2) does not turn ON even when a specified period of time elapses.
Causes: Confirmation of the wiring harness and the connector Confirmation of the punch switchover drive parts Punch switchover switch (MS2) Punch switchover motor (M8) ZU control board (ZUCB)

Code: C-1181
Description: After the gate motor (M12) starts the home position search, the gate home sensor (PS16) does not turn ON even when a specified period of time elapses.
Causes: Confirmation of the wiring harness and the connector Confirmation of the gate drive parts Gate home sensor (PS16) Gate motor (M12) FS control board (FSCB)

Code: C-1356
Description: A specified period of time after the conveyance motor cooling fan (M10) is turned on, the EM signal of the M10 gets into an abnormal condition.
Causes: Confirmation of the wiring harness and the connector Conveyance motor cooling fan (M10) ZU control board (ZUCB)

Code: C-2101
Description: When the charge cleaning home sensor (PS41) is OFF with the main power switch (SW1) ON, PS41 does not turn ON within a specified period of time after the charge cleaning motor (M23) turns ON for home position research operation (return operation). At this time, an error detection signal (blowout of ICP) is not detected. PS41 does not turn OFF within a specified period of time after the reverse operation (return operation) is started. At this time, an error detection signal (blowout of ICP) is not detected. It is checked that the time for the M23 operations is over. The charge cleaning limit sensor (PS42) does not turn ON within a specified period of time after the reverse operation (return operation) is started for detection of PS41 being OFF. Or, PS41 does not turn ON within a specified period of time after PS42 turns ON.
Causes: Confirmation of the wiring harness and the connector Charge cleaning motor (M23) Charge cleaning home sensor (PS41) Charge cleaning limit sensor (PS42) Printer control board (PRCB)

Code: C-2102
Description: The blowout of ICP for the charge cleaning motor (M23) in the printer control board (PRCB) is checked. When the charge cleaning home sensor (PS41) is OFF with the main power switch (SW1) ON, PS41 does not turn ON within a specified period of time after the M23 turns ON for home position research operation (return operation). And at this time, an error detection signal (blowout of ICP) is detected. PS41 does not turn OFF within a specified period of time after the reverse operation (return operation) is started. And at this time, an error detection signal (blowout of ICP) is detected. The charge cleaning limit sensor (PS42) does not turn ON within a specified period of time after the reverse operation (return operation) is started for detection of PS41 being OFF. Or, PS41 does not turn ON within a specified period of time after PS42 turns ON. At this time, an error detection signal (blowout of ICP) is detected.
Causes: Confirmation of the wiring harness and the connector Charge cleaning motor (M23) Charge cleaning home sensor (PS41) Charge cleaning limit sensor (PS42) Printer control board (PRCB)

Code: C-2103
Description: The locking of the charge cleaning motor (M23) is detected. A motor lock signal is detected while moving from the charge cleaning limit sensor (PS42) side to the charge cleaning home sensor (PS41) side, and after a retry operation, a fifth motor lock signal is detected.
Causes: Confirming the operation of the charging corona cleaning member Confirmation of the wiring harness and the connector Charge cleaning motor (M23) Charge cleaning home sensor (PS41) Charge cleaning limit sensor (PS42) Printer control board (PRCB)

Code: C-2104
Description: It is checked that the operations of the transfer/separation cleaning motor (M18) are over. When the transfer/separation cleaning home sensor (PS11) is OFF with the main power switch (SW1) ON, PS11 does not turn ON within a specified period of time after the M18 turns ON for a home position research operation (return operation). At this time, an error detection signal (blowout of ICP) is not detected. PS11 does not turn OFF within a specified period of time after the reverse operation (return operation) is started. At this time, an error detection signal (blowout of ICP) is not detected. It is checked that the operations of the M18 are over. The transfer/ separation cleaning limit sensor (PS12) does not turn ON within a specified period of time after the reverse operation (return operation) is started for detection of PS11 being OFF. Or, PS11 does not turn ON within a specified period of time after PS12 turns ON. At this time, an error detection signal (blowout of ICP) is not detected.
Causes: Confirmation of the wiring harness and the connector Transfer/separation cleaning motor (M18) Transfer/separation cleaning home sensor (PS11) Transfer/separation cleaning limit sensor (PS12) ADU drive board (ADUDB)

Code: C-2106
Description: The locking of the transfer/separation cleaning motor (M18) is detected. Motor lock signals are detected while moving from the transfer/separation limit sensor (PS12) side to the transfer/separation home sensor (PS11) side, and after a retry operation, a fifth motor lock signal is detected.
Causes: Confirmation of the transfer/ separation cleaning member Confirmation of the wiring harness and the connector Transfer/separation cleaning motor (M18) Transfer/separation cleaning home sensor (PS11) Transfer/separation cleaning limit sensor (PS12) ADU drive board (ADUDB)

Code: C-2110
Description: It is checked that the home position search time of the transfer assist motor (M25) is out. When the transfer assist home sensor (PS64) is turned OFF, PS64 is not turned ON a specified period of time after the home position search starts operation.
Causes: Confirmation of the wiring harness and the connector Transfer assist motor (M25) Transfer assist home sensor (PS64) ADU drive board (ADUDB) DC power supply /1 (DCPS1) Power supply cooling fan /1 (FM30) Power supply cooling fan /2 (FM31)

Code: C-2111
Description: While the transfer assist motor (M25) is in operation, an error is detected. An error is detected of the transfer assist motor (M25) while in the print operation.
Causes: Confirmation of the wiring harness and the connector Transfer assist motor (M25) Transfer assist home sensor (PS64) ADU drive board (ADUDB) DC power supply /1 (DCPS1) Power supply cooling fan /1 (FM30) Power supply cooling fan /2 (FM31)

Code: C-2201
Description: The speed error signal of the toner bottle motor (M15) is checked. An error detection signal is detected twice in succession a specified period of time after M15 turns ON (the first signal is ignored).
Causes: Confirmation of the wiring harness and the connector Toner bottle motor (M15) Printer control board (PRCB)

Code: C-2202
Description: The speed error signal of the developing motor (M3) is checked. Since an error detection signal is detected a second after M3 turns ON, turn OFF M3 for a specified period of time. Then, an error detection signal is detected again a specified period of time after it is turned ON again.
Causes: Confirmation of the wiring harness and the connector Developing motor (M3) Printer control board (PRCB)

Code: C-2203
Description: The locking of the blade motor (M14) is detected. The error detection signal (over current) of M14 is detected.
Causes: Confirmation of the wiring harness and the connector Blade motor (M14) Printer control board (PRCB)

Code: C-2204
Description: It is checked that the movement of the blade motor (M14) is not completed, and the 24V power source is also checked. The drum READY1 signal (READY condition) cannot be detected within a specified period of time after the drum motor (M2) turns ON. Or, the drum READY1 signal (READY release condition) cannot be detected within a specified period of time after M2 turns OFF. At this time, an error detection signal (24V cut out) is detected.
Causes: Confirmation of the wiring harness and the connector Blade sensor /1 (PS30) Blade sensor /2 (PS31) Blade motor (M14) Drum motor (M2) Printer control board (PRCB) DC power supply /2 (DCPS2)

Code: C-2205
Description: The blowout of ICP for the blade motor (M14) in the printer control board (PRCB) is checked. The drum READY1 signal (READY condition) cannot be detected within a specified period of time after the drum motor (M2) turns ON. Or, the drum READY1 signal (READY release condition) cannot be detected within a specified period of time after M2 turns OFF. At this time, the error detection signal (blowout of ICP) of M14 is detected.
Causes: Confirmation of the wiring harness and the connector Blade sensor /1 (PS30) Blade sensor /2 (PS31) Blade motor (M14) Drum motor (M2) Printer control board (PRCB) DC power supply /2 (DCPS2)

Code: C-2206
Description: It is checked that the movement of the blade motor (M14) is not completed. The drum READY1 signal (READY condition) cannot be detected within a specified period of time after the drum motor (M2) turns ON. Or, the drum READY1 signal (READY release condition) cannot be detected within a specified period of time after M2 turns OFF. At this time, an error detection signal is not detected.
Causes: Confirmation of the wiring harness and the connector Blade sensor /1 (PS30) Blade sensor /2 (PS31) Blade motor (M14) Drum motor (M2) Printer control board (PRCB) DC power supply /2 (DCPS2)

Code: C-2207
Description: It is checked that the movement of the blade motor (M14) is not completed, and 24V power source is also checked. The blade READY signal (READY condition) cannot be detected within a specified period of time after the blade replacement signal turns ON. Or, the blade READY signal (READY release condition) cannot be detected within a specified period of time after the blade replacement signal turns OFF. At this time, an error detection signal (24V cut out) is detected.
Causes: Confirmation of the wiring harness and the connector Blade sensor /1 (PS30) Blade sensor /2 (PS31) Blade motor (M14) Drum motor (M2) Printer control board (PRCB) DC power supply /2 (DCPS2)

Code: C-2208
Description: The blowout of ICP for the blade motor (M14) in the printer control board (PRCB) is checked. The blade READY signal (READY condition) cannot be detected within a specified period of time after the blade replacement signal turns ON. Or, the blade READY signal (READY release condition) cannot be detected within a specified period of time after the blade replacement signal turns OFF. At this time, the error detection signal (blowout of ICP) of M14 is detected.
Causes: Confirmation of the wiring harness and the connector Blade sensor /1 (PS30) Blade sensor /2 (PS31) Blade motor (M14) Drum motor (M2) Printer control board (PRCB) DC power supply /2 (DCPS2)

Code: C-2209
Description: It is checked that the movement of the blade motor (M14) is not completed. The blade READY signal (READY condition) cannot be detected within a specified period of time after the blade replacement signal turns ON. Or, the blade READY signal (READY release condition) cannot be detected within a specified period of time after the blade replacement signal turns OFF. At this time, an error detection signal is not detected.
Causes: Confirmation of the wiring harness and the connector Blade sensor /1 (PS30) Blade sensor /2 (PS31) Blade motor (M14) Drum motor (M2) Printer control board (PRCB) DC power supply /2 (DCPS2)

Code: C-2210
Description: It is checked that the drum motor (M2) does not start. The drum READY2 signal (READY signal) is not detected within a specified period of time after M2 turns ON.
Causes: Confirmation of the wiring harness and the connector Drum motor (M2) Printer control board (PRCB)

Code: C-2211
Description: The blowout of ICP for the toner supply motor (M11) in the printer control board (PRCB) is checked. An error detection signal (blowout of ICP) is detected when M11 turns ON.
Causes: Confirmation of the wiring harness and the connector Toner supply motor (M11) Printer control board (PRCB)

Code: C-2221
Description: When the recycle cut motor (M24) is turned ON, an error detection signal is detected twice in a row within a specified period of time. (An error detection signal on the first time is ignored.)
Causes: Confirmation of the wiring harness and the connector Recycle cut motor (M24) Recycle cut drive board (RCDB) Printer control board (PRCB)

Code: C-2250
Description: It is detected that the waste toner amount exceeds 80% of the toner collection box At this time, DIPSW5-0 is 0 and the operations of all the job, including the reservation, are completed.
Causes: Waste toner recycle box

Code: C-2401
Description: The temperature of the drum temperature sensor (TH5) detected a specified period of time after the main power switch (SW1) is turned ON is -3°C or lower, and also, the drum temperature after a specified period of time is -3°C or lower.
Causes: Confirmation of the wiring harness and the connector Drum temperature sensor (TH5) Printer control board (PRCB)

Code: C-2402
Description: When the main power switch (SW1) turns ON with the fusing temperature below 50°C, the detected temperature of the drum temperature sensor (TH5) is more than 52°C, and when the detected temperature is above 52°C after a specified period of time.
Causes: Confirmation of the wiring harness and the connector Drum temperature sensor (TH5) Printer control board (PRCB)

Code: C-2403
Description: The erase lamp (EL1) is unconnected.
Causes: Confirmation of the wiring harness and the connector Erase lamp (EL1) Printer control board (PRCB)

Code: C-2701
Description: A charge leak is detected. After a charge error detection signal is detected while in the charge ON, up to 5 charge ON/OFF operations occur in succession.
Causes: Confirmation of the charger power feeding contact Confirmation of the wiring harness and the connector High voltage unit /1 (HV1) Printer control board (PRCB)

Code: C-2702
Description: A transfer leak is detected. After a transfer error detection signal is detected while in the transfer ON, up to 5 transfer ON/OFF operations occur in succession.
Causes: Confirmation of the transfer/ separation charger power feeding contact Confirmation of the wiring harness and the connector High voltage unit /2 (HV2) Printer control board (PRCB) ADU drive board (ADUDB)

Code: C-2703
Description: A separation leak is detected. After a separation error detection signal is detected while in the separation ON, up to 5 separation ON/OFF operations occur in succession.
Causes: Confirmation of the transfer/ separation charger power feeding contact Confirmation of the wiring harness and the connector High voltage unit /2 (HV2) Printer control board (PRCB) ADU drive board (ADUDB)

Code: C-2704
Description: The error detection signal (blowout of a 24V ICP) of the high voltage unit /2 (HV2) is detected.
Causes: Confirmation of the wiring harness and the connector High voltage unit /2 (HV2) ADU drive board (ADUDB)

Code: C-2801
Description: The dirt correction of the sensor is not completed. While in the maximum density correction, the dirt correction of the IDC sensor is not sufficient. When this condition is detected 10 times in succession, the error code is displayed.
Causes: Cleaning of the IDC sensor Confirmation of the wiring harness and the connector IDC sensor board (IDCB) Printer control board (PRCB)

Code: C-2802#
Description: The maximum density correction is not completed. While in the maximum density correction, the number of rotations of the developing roller gets to the maximum.
Causes: Cleaning of the IDC sensor Confirmation of the wiring harness and the connector IDC sensor board (IDCB) Developing motor (M3) Printer control board (PRCB) Overall control board (OACB) Write unit

Code: C-2803#
Description: The IDC sensor board (IDCB) output abnormality. While in the maximum density correction, a patch for control is not output. (No output is made from the IDCS. )
Causes: Cleaning of the IDC sensor Confirmation of the wiring harness and the connector IDC sensor board (IDCB) Developing motor (M3) Printer control board (PRCB) Overall control board (OACB) Write unit

Code: C-2804#
Description: The dirt correction of the sensor is not completed. While in gamma correction, the dirt correction of the IDC sensor is not sufficient. When C-2804 or C- 2807 is detected 10 times in succession, the error code is displayed.
Causes: Cleaning of the IDC sensor Confirmation of the wiring harness and the connector IDC sensor board (IDCB) Developing motor (M3) Printer control board (PRCB) Overall control board (OACB) Write unit

Code: C-2805#
Description: The IDC sensor board (IDCB) output abnormality. While in the gamma correction, a patch for control is not output. (No output is made from the IDCB. )
Causes: Cleaning of the IDC sensor Confirmation of the wiring harness and the connector IDC sensor board (IDCB) Developing motor (M3) Printer control board (PRCB) Overall control board (OACB) Write unit

Code: C-2806#
Description: The gamma correction data is defective. The gamma correction output is abnormal. A regression error when carrying out a gamma curve operation while in the gamma correction.
Causes: Cleaning of the IDC sensor Confirmation of the wiring harness and the connector IDC sensor board (IDCB) Developing motor (M3) Printer control board (PRCB) Overall control board (OACB) Write unit

Code: C-2807#
Description: The dirt correction of the sensor is not completed. While in the dot diameter correction, the dirt correction of the IDC sensor is not sufficient. When C-2804 or C- 2807 is detected 10 times in succession, the error code is displayed.
Causes: Cleaning of the IDC sensor Confirmation of the wiring harness and the connector IDC sensor board (IDCB) Developing motor (M3) Printer control board (PRCB) Overall control board (OACB) Write unit

Code: C-2808#
Description: Correction abnormality. While in the dot diameter correction, the correction is terminated with an abnormal value.
Causes: Cleaning of the IDC sensor Confirmation of the wiring harness and the connector IDC sensor board (IDCB) Developing motor (M3) Printer control board (PRCB) Overall control board (OACB) Write unit

Code: C-2809#
Description: Drum potential sensor (DPS) output abnormality. While in the 0V check of the DPS, more than 100V of the drum surface potential is detected more than 5 times. When this condition is detected 5 times in succession, the error code is displayed.
Causes: Confirmation of the wiring harness and the connector Drum potential sensor board (DPSB) Drum potential sensor (DPS) Printer control board (PRCB)

Code: C-2810
Description: Drum potential sensor (DPS) output abnormality. While in the drum potential correction, a patch for control is not output with the V1 getting to more than 350V. When this condition is detected 5 times in succession, the error code is displayed.
Causes: Confirmation of the wiring harness and the connector Drum potential sensor board (DPSB) Drum potential sensor (DPS) Printer control board (PRCB)

Code: C-2811
Description: The data is defective. While in the drum potential correction, no convergence is obtained even after correction is made more than 10 times. When this condition is detected 5 times in succession, the error code is displayed.
Causes: Confirmation of the wiring harness and the connector Drum potential sensor board (DPSB) Drum potential sensor (DPS) Printer control board (PRCB)

Code: C-2812#
Description: Auto adjustment monitor value abnormality. No convergence is made in the auto adjustment of the transfer current.
Causes: Confirmation of the transfer/ separation charger power feeding contact Confirmation of the wiring harness and the connector High voltage unit /2 (HV2) Printer control board (PRCB) ADU drive board (ADUDB)

Code: C-2813#
Description: Auto adjustment monitor value abnormality. No convergence is made in the auto adjustment of the separation (AC) current.
Causes: Confirmation of the transfer/ separation charger power feeding contact Confirmation of the wiring harness and the connector High voltage unit /2 (HV2) Printer control board (PRCB) ADU drive board (ADUDB)

Code: C-2814#
Description: Auto adjustment monitor value abnormality. No convergence is made in the auto adjustment of the separation (DC) current.
Causes: Confirmation of the transfer/ separation charger power feeding contact Confirmation of the wiring harness and the connector High voltage unit /2 (HV2) Printer control board (PRCB) ADU drive board (ADUDB)

Code: C-2815#
Description: Auto adjustment monitor value abnormality. No convergence is made in the auto adjustment of the developing bias.
Causes: Confirmation of the charger power feeding contact Confirmation of the wiring harness and the connector High voltage unit /1 (HV1) Printer control board (PRCB)

Code: C-3101
Description: The blowout of ICP for the web motor (M16) in the printer control board (PRCB) is checked, and the 24V power source is also checked. When M16 turn ON from OFF, error detection signals (blowout of ICP and the 24V cut off) are detected.
Causes: Confirmation of the wiring harness and the connector Web motor (M16) Printer control board (PRCB) DC power supply /2 (DCPS2)

Code: C-3102
Description: The blowout of ICP for the web motor (M16) in the printer control board (PRCB) is checked. When M16 turns ON from OFF, the blowout of ICP abnormality is detected with a 24V down signal normal.
Causes: Confirmation of the wiring harness and the connector Web motor (M16) Printer control board (PRCB) DC power supply /2 (DCPS2)

Code: C-3301
Description: The rotation of the fusing fan /1 (FM1) is checked, and the 24V power source is also checked. An abnormal condition occurs with the FM1 EM signal a specified period of time after FM1 is turned ON. This abnormal condition recurs even a specified period of time after FM1 is turned OFF and then turned ON, and an error detection signal (24V cut off) is detected.
Causes: Confirmation of the wiring harness and the connector Fusing fan /1 (FM1) ADU drive board (ADUDB) DC power supply /2 (DCPS2)

Code: C-3302
Description: Rotation of the fusing fan /1 (FM1) is checked. An abnormal condition occurs with the FM1 EM signal a specified period of time after FM1 is turned ON. This abnormal condition recurs even a specified period of time after FM1 is turned OFF and then turned ON, and an error detection signal (24V cut off/ blowout of ICP) is not detected.
Causes: Confirmation of the wiring harness and the connector Fusing fan /1 (FM1) ADU drive board (ADUDB) DC power supply /2 (DCPS2)

Code: C-3303#
Description: When the print is completed, the fusing fan /1 (FM1) EM signal gets into an abnormal condition.
Causes: Confirmation of the wiring harness and the connector Fusing fan /1 (FM1) ADU drive board (ADUDB) DC power supply /2 (DCPS2)

Code: C-3304
Description: The rotation of the fusing fan /2 (FM4) is checked, and the 24V power source is also checked. An abnormal condition occurs with the FM4 EM signal a specified period of time after FM4 is turned ON. This abnormal condition recurs even a specified period of time after FM4 is turned OFF and then turned ON, and an error detection signal (24V cut off) is detected.
Causes: Confirmation of the wiring harness and the connector Fusing fan /2 (FM4) ADU drive board (ADUDB) DC power supply /2 (DCPS2)

Code: C-3305
Description: Rotation of the fusing fan /2 (FM4) is checked. An abnormal condition occurs with the FM4 EM signal a specified period of time after FM4 is turned ON. This abnormal condition recurs even a specified period of time after FM4 is turned OFF and then ON again, and an error detection signal (24V cut off) is not detected.
Causes: Confirmation of the wiring harness and the connector Fusing fan /2 (FM4) ADU drive board (ADUDB) DC power supply /2 (DCPS2)

Code: C-3306
Description: When the print is completed, the fusing fan /2 (FM4) EM signal gets into an abnormal condition.
Causes: Confirmation of the wiring harness and the connector Fusing fan /2 (FM4) ADU drive board (ADUDB) DC power supply /2 (DCPS2)

Code: C-3501
Description: Fusing roller /Up high temperature detection (software). TH1 detects a temperature of 235°C or above 5 times in a specified period of time. Or, the fusing temperature sensor /2 (TH2) detects a temperature of 240°C or above.
Causes: Confirmation of the wiring harness and the connector Fusing temperature sensor / 1 (TH1) Fusing heater lamp /1 (L1) Fusing heater lamp /2 (L2) Printer control board (PRCB) AC drive board (ACDB)

Code: C-3502
Description: Fusing heating roller high temperature abnormality (software). TH3 detects a temperature of 230°C or above 5 times in a specified period of time.
Causes: Confirmation of the wiring harness and the connector Fusing temperature sensor / 3 (TH3) Fusing heater lamp /3 (L3) Printer control board (PRCB) AC drive board (ACDB)

Code: C-3503
Description: Fusing roller /Up high temperature abnormality (hardware). An abnormal condition is detected with the fusing error detection signal 1.
Causes: Confirmation of the wiring harness and the connector Fusing temperature sensor / 1 (TH1) Fusing heater lamp /1 (L1) Fusing heater lamp /2 (L2) Printer control board (PRCB) AC drive board (ACDB)

Code: C-3504
Description: Fusing heating roller high temperature abnormality (hardware). An abnormal condition is detected with the fusing error detection signal 4.
Causes: Confirmation of the wiring harness and the connector Fusing temperature sensor / 3 (TH3) Fusing heater lamp /3 (L3) Printer control board (PRCB) AC drive board (ACDB)

Code: C-3801
Description: Fusing roller /Up low temperature abnormality (software). TH1 does not get to 75°C when a specified period of time has elapsed after the main switch (SW1) is turned ON for the fusing ON control.
Causes: Confirmation of the wiring harness and the connector Fusing temperature sensor / 1 (TH1) Fusing heater lamp /1 (L1) Fusing heater lamp /2 (L2) Printer control board (PRCB) AC drive board (ACDB)

Code: C-3802
Description: Fusing heating roller low temperature abnormality (software). TH3 does not get to 50°C when a specified period of time has elapsed after the main switch (SW1) is turned ON for the fusing ON control.
Causes: Confirmation of the wiring harness and the connector Fusing temperature sensor / 3 (TH3) Fusing heater lamp /3 (L3) Printer control board (PRCB) AC drive board (ACDB)

Code: C-3901
Description: Fusing roller /Up sensor abnormality (software). TH1 detects a temperature of 230°C or above 30 times in a row in a specified period of time.
Causes: Confirmation of the wiring harness and the connector Fusing temperature sensor / 1 (TH1) Fusing heater lamp /1 (L1) Fusing heater lamp /2 (L2) Printer control board (PRCB) AC drive board (ACDB)

Code: C-3902
Description: Fusing heating roller sensor abnormality (software). TH3 detects a temperature of 220°C or above 30 times in a row in a specified period of time.
Causes: Confirmation of the wiring harness and the connector Fusing temperature sensor / 3 (TH3) Fusing heater lamp /3 (L3) Printer control board (PRCB) AC drive board (ACDB)

Code: C-3903
Description: Fusing roller /Up sensor abnormality (hardware). The output voltage of the TH1 is detected as a low temperature abnormality (- 6°C or lower) in the comparator circuit.
Causes: Confirmation of the wiring harness and the connector Fusing temperature sensor / 1 (TH1) Fusing heater lamp /1 (L1) Fusing heater lamp /2 (L2) Printer control board (PRCB) AC drive board (ACDB)

Code: C-3904
Description: Fusing heating roller sensor abnormality (hardware). The output voltage of the TH3 is detected as a low temperature abnormality (-6°C or lower) in the comparator circuit.
Causes: Confirmation of the wiring harness and the connector Fusing temperature sensor / 3 (TH3) Fusing heater lamp /3 (L3) Printer control board (PRCB) AC drive board (ACDB)

Code: C-3905
Description: Fusing roller /Up abnormality detection (hardware). The output voltage of the TH2 is detected as a low temperature (-6°C or lower) or high temperature (240.5°C or higher) abnormality in the comparator circuit.
Causes: Confirmation of the wiring harness and the connector Fusing temperature sensor / 2 (TH2) Fusing heater lamp /1 (L1) Fusing heater lamp /2 (L2) Printer control board (PRCB) AC drive board (ACDB)

Code: C-3906
Description: Fusing heating roller abnormality detection (hardware). The output voltage of the TH4 is detected as a low temperature (-6°C or lower) or high temperature (240.5°C or higher) abnormality in the comparator circuit.
Causes: Confirmation of the wiring harness and the connector Fusing temperature sensor / 4 (TH4) Fusing heater lamp / 3 (L3) Printer control board (PRCB) AC drive board (ACDB)

Code: C-4101
Description: When the speed of the polygon motor (M17) is being switched, a speed lock signal is not detected within a specified period of time.
Causes: Confirmation of the wiring harness and the connector Write unit (Polygon motor drive board (PMDB) Polygon motor (M17) ) DC power supply /2 (DCPS2)

Code: C-4301
Description: The rotation of the write unit cooling fan /1 (FM5) is checked, and 24V power source is also checked. An abnormal condition occurs with the FM5 EM signal a specified period of time after FM5 turns ON. This abnormal condition recurs even a specified period of time after FM5 is turned OFF and then turned ON, and an error detection signal (24V cut off) is detected.
Causes: Confirmation of the wiring harness and the connector Write unit cooling fan /1 (FM5) AC drive board (ACDB) DC power supply /2 (DCPS2)

Code: C-4302
Description: The blowout of ICP for the write unit cooling fan /1 (FM5) in the AC drive board (ACDB) is checked. An abnormal condition occurs with the FM5 EM signal a specified period of time after FM5 turns ON. This abnormal condition recurs even a specified period of time after FM5 is turned OFF and then turned ON, and an error detection signal (blowout of ICP) is detected.
Causes: Confirmation of the wiring harness and the connector Write unit cooling fan /1 (FM5) AC drive board (ACDB) DC power supply /2 (DCPS2)

Code: C-4303
Description: The rotation of the write unit cooling fan /1 (FM5) is checked. An abnormal condition occurs with the FM5 EM signal a specified period of time after FM5 turns ON. This abnormal condition recurs even a specified period of time after FM5 is turned OFF and then turned ON, and an error detection signal (24V cut off/ blowout of ICP) is not detected.
Causes: Confirmation of the wiring harness and the connector Write unit cooling fan /1 (FM5) AC drive board (ACDB) DC power supply /2 (DCPS2)

Code: C-4304
Description: When the print is started, an error detection signal of the writing section cooling fan /1 (FM5) is detected.
Causes: Confirmation of the wiring harness and the connector Write unit cooling fan /1 (FM5) AC drive board (ACDB) DC power supply /2 (DCPS2)

Code: C-4305
Description: The rotation of the write unit cooling fan /2 (FM8) is checked and the 24V power source is also checked. An abnormal condition occurs with the FM8 EM signal a specified period of time after the write unit cooling fan /2 (FM8) turns ON. This abnormal condition recurs even a specified period of time after FM8 is turned OFF and then turned ON, and an error detection signal (24V cut off) is detected.
Causes: Confirmation of the wiring harness and the connector Write unit cooling fan /2 (FM8) AC drive board (ACDB) DC power supply /2 (DCPS2)

Code: C-4306
Description: The blowout of ICP for the write unit cooling fan /2 (FM8) in the AC drive board (ACDB) is checked. An abnormal condition occurs with the FM8 EM signal a specified period of time after the write unit cooling fan /2 (FM8) turns ON. This abnormal condition recurs even a specified period of time after FM8 is turned OFF and then turned ON, and an error detection signal (blowout of ICP) is detected.
Causes: Confirmation of the wiring harness and the connector Write unit cooling fan /2 (FM8) AC drive board (ACDB) DC power supply /2 (DCPS2)

Code: C-4307
Description: The rotation of the write unit cooling fan /2 (FM8) is checked. An abnormal condition occurs with the FM8 EM signal a specified period of time after the write unit cooling fan /2 (FM8) turns ON. This abnormal condition recurs even a specified period of time after FM8 is turned OFF and then turned ON, and an error detection signal (24V cut off/ blowout of ICP) is not detected.
Causes: Confirmation of the wiring harness and the connector Write unit cooling fan /2 (FM8) AC drive board (ACDB) DC power supply /2 (DCPS2)

Code: C-4308
Description: When the print is started, an error detection signal of the writing section cooling fan /2 (FM8) is detected.
Causes: Confirmation of the wiring harness and the connector Write unit cooling fan /2 (FM8) AC drive board (ACDB) DC power supply /2 (DCPS2)

Code: C-4309
Description: The rotation of the cooling fan /4 (FM12) is checked and the 24V power source is also checked. An abnormal condition occurs with the FM12 EM signal a specified period of time after FM12 turns ON. This abnormal condition recurs even a specified period of time after FM12 is turned OFF and then turned ON, and an error detection signal (24V cut off) is detected.
Causes: Confirmation of the wiring harness and the connector Cooling fan /4 (FM12) AC drive board (ACDB) DC power supply /2 (DCPS2)

Code: C-4310
Description: The blowout of ICP for the cooling fan /4 (FM12) in the AC drive board (ACDB) is checked. An abnormal condition occurs with the FM12 EM signal a specified period of time after FM12 turns ON. This abnormal condition recurs even a specified period of time after FM12 is turned OFF and then turned ON, and an error detection signal (blowout of ICP) is detected.
Causes: Confirmation of the wiring harness and the connector Cooling fan /4 (FM12) AC drive board (ACDB) DC power supply /2 (DCPS2)

Code: C-4311
Description: Rotation of the cooling fan /4 (FM12) is checked. An abnormal condition occurs with the FM12 EM signal a specified period of time after FM12 turns ON. This abnormal condition recurs even a specified period of time after FM12 is turned OFF and then turned ON, and an error detection signal (24V cut off/blowout of ICP) is not detected.
Causes: Confirmation of the wiring harness and the connector Cooling fan /4 (FM12) AC drive board (ACDB) DC power supply /2 (DCPS2)

Code: C-4312
Description: The rotation of the polygon cooling fan (FM9) is checked and the 24V power source is also checked. An abnormal condition occurs with the FM9 EM signal a specified period of time after FM9 is turned ON. This abnormal condition recurs even a specified period of time after FM9 is turned OFF and then turned ON, and an error detection signal (24V cut off) is detected.
Causes: Confirmation of the wiring harness and the connector Polygon cooling fan (FM9) AC drive board (ACDB) Printer control board (PRCB) DC power supply /2 (DCPS2)

Code: C-4313
Description: The blowout of ICP for the polygon cooling fan (FM9) in the AC drive board (ACDB) is checked. An abnormal condition occurs with the FM9 EM signal a specified period of time after FM9 turns ON. This abnormal condition recurs even a specified period of time after FM9 is turned OFF and then turned ON, and an error detection signal (blowout of ICP) is detected.
Causes: Confirmation of the wiring harness and the connector Polygon cooling fan (FM9) AC drive board (ACDB) Printer control board (PRCB) DC power supply /2 (DCPS2)

Code: C-4314
Description: The rotation of the polygon cooling fan (FM9) is checked. An abnormal condition occurs with the FM9 EM signal a specified period of time after FM9 turns ON. This abnormal condition recurs even a specified period of time after FM9 is turned OFF and then turned ON, and an error detection signal (24V cut off/ blowout of ICP) is not detected.
Causes: Confirmation of the wiring harness and the connector Polygon cooling fan (FM9) AC drive board (ACDB) Printer control board (PRCB) DC power supply /2 (DCPS2)

Code: C-4315#
Description: When the print is started, an error detection signal of the polygon cooling fan (FM9) is detected.
Causes: Confirmation of the wiring harness and the connector Polygon cooling fan (FM9) AC drive board (ACDB) Printer control board (PRCB) DC power supply /2 (DCPS2)

Code: C-4701
Description: FIFO address abnormality for the printer. While in the image write, the expansion processing of image data that is read in is not correctly terminated.
Causes: Confirmation of the wiring harness and the connector Overall control board (OACB) Gate array damaged

Code: C-4702
Description: An error interrupt occurs with the compression/expansion chip FIFO.
Causes: Confirmation of the wiring harness and the connector Overall control board (OACB) Gate array damaged

Code: C-4703
Description: Elongation abnormality.
Causes: Confirmation of the wiring harness and the connector Overall control board (OACB) Gate array damaged

Code: C-4704
Description: While in the execution of APC, no change is found in the output of the index sensor.
Causes: Confirmation of the wiring harness and the connector Overall control board (OACB) Write unit DC power supply /1 (DCPS1)

Code: C-4705
Description: While in the image write, the expansion processing from the memory to the printer does not terminate within a specified period of time. The output from the page memory to the printer does not terminate within a specified period of time. The PVV is not detected within a specified period of time.
Causes: Confirmation of the wiring harness and the connector Overall control board (OACB) Printer control board (PRCB)

Code: C-4706
Description: When writing images, in spite of no resource provided, an inappropriate processing such as an access to the elongation device is made.
Causes: Confirmation of the wiring harness and the connector Reinstalling firmware Overall control board (OACB) Printer control board (PRCB)

Code: C-4707
Description: While in the image write, APC is not applicable for the correction of the sub scan beam. Due to the 12V DC power for the laser drive not supplied, the MPC being wrong and the laser defective, the laser does not light up. Also, due to the rotation of the polygon mirror unavailable, the displacement of the index sensor, and the index sensor being defective, the index sensor cannot detect the laser.
Causes: Confirmation of the wiring harness and the connector Overall control board (OACB) Write unit DC power supply /1 (DCPS1)

Code: C-4708
Description: When accessing to the memory device, a defective software is detected.
Causes: Confirmation of the wiring harness and the connector Reinstalling firmware Overall control board (OACB) Printer control board (PRCB)

Code: C-4709
Description: The expansion processing from the memory to the page memory is not terminated within a specified period of time. The compression processing from the page memory to the memory is not terminated within a specified period of time. The development from the memory into the page memory is not terminated within a specified period of time. The transmission of the compressed data from memory to memory is not terminated within a specified period of time.
Causes: Confirmation of the wiring harness and the connector Reinstalling firmware Overall control board (OACB) Printer control board (PRCB)

Code: C-4721#
Description: The print operation starts before the paper mis-centering adjustment is terminated. (The mis-centering adjustment is too late.)
Causes: Confirmation of the wiring harness and the connector Centering sensor (PS1) ADU drive board (ADUDB)

Code: C-4722#
Description: A PWM gamma curve is not created properly.
Causes: Cleaning of the IDC sensor Confirmation of the wiring harness and the connector IDC sensor board (IDCB) Printer control board (PRCB)

Code: C-5010#
Description: Communication error check between OACB/PRCB. Overall control board (OACB) communication serial reception error detection abnormality.
Causes: Confirmation of the wiring harness and the connector Overall control board (OACB) Printer control board (PRCB)

Code: C-5101
Description: A speed error signal of the fusing motor (M1) is checked. An error detection signal is detected twice in succession a specified period of time after M1 turns ON. (The first signal is ignored.)
Causes: Confirmation of the wiring harness and the connector Fusing motor (M1) Printer control board (PRCB) DC power supply /2 (DCPS2)

Code: C-5102#
Description: The 24V power source for the total counter (TCT) is checked. When TCT is turned ON from OFF, an error detection signal (blowout of ICP/24V cut off) is detected.
Causes: Confirmation of the wiring harness and the connector Total Counter (TCT) AC drive board (ACDB) DC power supply /2 (DCPS2)

Code: C-5103#
Description: The blowout of ICP for TC in the AC drive board (ACDB) is checked. When the total counter (TCT) is turned ON from OFF, an error detection signal (blowout of ICP) is detected. However, an error detection signal (24V cut off) is not detected.
Causes: Confirmation of the wiring harness and the connector Total Counter (TCT) AC drive board (ACDB) DC power supply /2 (DCPS2)

Code: C-5104#
Description: The 24V power source for the key counter (KCT) is checked. When KCT is turned ON from OFF, an error detection signal (blowout of ICP/24V cut off) is detected.
Causes: Confirmation of the wiring harness and the connector Key counter (KCT) AC drive board (ACDB) DC power supply /2 (DCPS2)

Code: C-5105#
Description: The blowout of ICP for KCT in the AC drive board (ACDB) is checked. When the key counter (KCT) is turned ON from OFF, an error detection signal (blowout of ICP) is detected. However, an error detection signal (24V cut off) is not detected.
Causes: Confirmation of the wiring harness and the connector Key counter (KCT) AC drive board (ACDB) DC power supply /2 (DCPS2)

Code: C-5301
Description: The rotation of the cooling fan /1 (FM26) and /2 (FM27) is checked, and the 24V power source is also checked. An abnormal condition occurs with the FM26 and FM27 EM signals a specified period of time after FM26 and FM27 are turned ON. This abnormal condition recurs even a specified period of time after FM26 and FM27 are turned OFF and then ON again, and an error detection signal (24V cut off) is detected.
Causes: Confirmation of the wiring harness and the connector Cooling fan /1 (FM26) Cooling fan /2 (FM27) AC drive board (ACDB) Printer control board (PRCB) DC power supply /2 (DCPS2)

Code: C-5302
Description: The rotation of the cooling fan /1 (FM26) and /2 (FM27) is checked. An abnormal condition occurs with the FM26 and FM27 EM signals a specified period of time after FM26 and FM27 are turned ON. This abnormal condition recurs even a specified period of time after FM26 and FM27 are turned OFF and then ON again, and an error detection signal (24V cut off) is not detected.
Causes: Confirmation of the wiring harness and the connector Cooling fan /1 (FM26) Cooling fan /2 (FM27) AC drive board (ACDB) Printer control board (PRCB) DC power supply /2 (DCPS2)

Code: C-5303#
Description: The blowout of ICP for the cooling fan /1 (FM26) is checked. An abnormal condition occurs with the FM26 EM signal a specified period of time after FM26 is turned ON. This abnormal condition recurs even a specified period of time after FM26 is turned OFF and then ON again, and an error detection signal (blowout of ICP) is detected.
Causes: Confirmation of the wiring harness and the connector Cooling fan /1 (FM26) AC drive board (ACDB) Printer control board (PRCB)

Code: C-5304#
Description: Rotation of the cooling fan /1 (FM26) is checked. An abnormal condition occurs with the FM26 EM signal a specified period of time after FM26 is turned ON. This abnormal condition recurs even a specified period of time after FM26 is turned OFF and then ON again, and an error detection signal (blowout of ICP) is not detected.
Causes: Confirmation of the wiring harness and the connector Cooling fan /1 (FM26) AC drive board (ACDB) Printer control board (PRCB)

Code: C-5305#
Description: The blowout of ICP for the cooling fan /2 (FM27) is checked. An abnormal condition occurs with the FM27 EM signal a specified period of time after FM27 is turned ON. This abnormal condition recurs even a specified period of time after FM27 is turned OFF and then ON again, and an error detection signal (blowout of ICP) is detected.
Causes: Confirmation of the wiring harness and the connector Cooling fan /2 (FM27) AC drive board (ACDB) Printer control board (PRCB)

Code: C-5306#
Description: Rotation of the cooling fan /2 (FM27) is checked. An abnormal condition occurs with the FM27 EM signal a specified period of time after FM27 is turned ON. This abnormal condition recurs even a specified period of time after FM27 is turned OFF and then ON again, and an error detection signal (blowout of ICP) is not detected.
Causes: Confirmation of the wiring harness and the connector Cooling fan /2 (FM27) AC drive board (ACDB)

Code: C-5307#
Description: The rotation of the cooling fan /3 (FM6) is checked and +24V power source is also checked. An abnormal condition occurs with the FM6 EM signal a specified period of time after FM6 turns ON. This abnormal condition recurs even a specified period of time after FM6 is turned OFF and then turned ON, and an error detection signal (24V cut off) is detected.
Causes: Confirmation of the wiring harness and the connector Cooling fan /3 (FM6) AC drive board (ACDB) Printer control board (PRCB) DC power supply /2 (DCPS2)

Code: C-5308
Description: The blowout of ICP for the cooling fan /3 (FM6) in the AC drive board (ACDB) is checked. An abnormal condition occurs with the FM6 EM signal a specified period of time after FM6 turns ON. This abnormal condition recurs even a specified period of time after FM6 is turned OFF and then turned ON, and an error detection signal (blowout of ICP) is detected.
Causes: Confirmation of the wiring harness and the connector Cooling fan /3 (FM6) AC drive board (ACDB) Printer control board (PRCB) DC power supply /2 (DCPS2)

Code: C-5309
Description: Rotation of the cooling fan /3 (FM6) is checked. An abnormal condition occurs with the FM6 EM signal a specified period of time after FM6 turns ON. This abnormal condition recurs even a specified period of time after FM6 is turned OFF and then turned ON, and an error detection signal (24V cut off/blowout of ICP) is not detected.
Causes: Confirmation of the wiring harness and the connector Cooling fan /3 (FM6) AC drive board (ACDB) Printer control board (PRCB) DC power supply /2 (DCPS2)

Code: C-5310
Description: When the print is started, an error detection signal of the cooling fan /1 (FM26) or the cooling fan /2 (FM27) is detected.
Causes: Confirmation of the wiring harness and the connector Cooling fan /1 (FM26) Cooling fan /2 (FM27) AC drive board (ACDB) Printer control board (PRCB)

Code: C-5311
Description: When the print is started, an error detection signal of the cooling fan /3 (FM6) is detected.
Causes: Confirmation of the wiring harness and the connector Cooling fan /3 (FM6) AC drive board (ACDB) Printer control board (PRCB)

Code: C-5312
Description: An abnormal condition occurs with the FM10 EM signal a specified period of time after the ADU cooling fan /1 (FM10) is turned ON. This abnormal condition recurs even a specified period of time after FM10 is turned OFF and then ON again, and an error detection signal (24V cut off) is detected.
Causes: Confirmation of the wiring harness and the connector ADU cooling fan /1 (FM10) ADU drive board (ADUDB) DC power supply /2 (DCPS2)

Code: C-5313
Description: Rotation of the ADU cooling fan / 1 (FM10) is checked. An abnormal condition occurs with the FM10 EM signal a specified period of time after FM10 is turned ON. This abnormal condition recurs even a specified period of time after FM10 is turned OFF and then ON again, and an error detection signal (24V cut off) is not detected.
Causes: Confirmation of the wiring harness and the connector ADU cooling fan /1 (FM10) ADU drive board (ADUDB) DC power supply /2 (DCPS2)

Code: C-5314
Description: An abnormal condition occurs with the FM11 EM signal a specified period of time after the ADU cooling fan /2 (FM11) is turned ON. This abnormal condition recurs even a specified period of time after FM11 is turned OFF and then ON again, and an error detection signal (24V cut off) is detected.
Causes: Confirmation of the wiring harness and the connector ADU cooling fan /2 (FM11) ADU drive board (ADUDB) DC power supply /2 (DCPS2)

Code: C-5315
Description: Rotation of the ADU cooling fan / 2 (FM11) is checked. An abnormal condition occurs with the FM11 EM signal a specified period of time after FM11 is turned ON. This abnormal condition recurs even a specified period of time after FM11 is turned OFF and then ON again, and an error detection signal (24V cut off) is not detected.
Causes: Confirmation of the wiring harness and the connector ADU cooling fan /2 (FM11) ADU drive board (ADUDB) DC power supply /2 (DCPS2)

Code: C-5316
Description: An abnormal condition occurs with the FM23 EM signal a specified period of time after the ADU cooling fan /4 (FM23) is turned ON. This abnormal condition recurs even a specified period of time after FM23 is turned OFF and then ON again, and an error detection signal (24V cut off) is detected.
Causes: Confirmation of the wiring harness and the connector ADU cooling fan /4 (FM23) ADU drive board (ADUDB) DC power supply /2 (DCPS2)

Code: C-5317
Description: Rotation of the ADU cooling fan / 4 (FM23) is checked. An abnormal condition occurs with the FM23 EM signal a specified period of time after FM23 is turned ON. This abnormal condition recurs even a specified period of time after FM23 is turned OFF and then ON again, and an error detection signal (24V cut off) is not detected.
Causes: Confirmation of the wiring harness and the connector ADU cooling fan /4 (FM23) ADU drive board (ADUDB) DC power supply /2 (DCPS2)

Code: C-5318
Description: An abnormal condition occurs with the FM25 EM signal a specified period of time after the ADU cooling fan /5 (FM25) is turned ON. This abnormal condition recurs even a specified period of time after FM25 is turned OFF and then ON again, and an error detection signal (24V cut off) is detected.
Causes: Confirmation of the wiring harness and the connector ADU cooling fan /5 (FM25) ADU drive board (ADUDB) DC power supply /2 (DCPS2)

Code: C-5319
Description: Rotation of the ADU cooling fan / 5 (FM25) is checked. An abnormal condition occurs with the FM25 EM signal a specified period of time after FM25 is turned ON. This abnormal condition recurs even a specified period of time after FM25 is turned OFF and then ON again, and an error detection signal (24V cut off) is not detected.
Causes: Confirmation of the wiring harness and the connector ADU cooling fan /5 (FM25) ADU drive board (ADUDB) DC power supply /2 (DCPS2)

Code: C-5320
Description: An abnormal condition occurs with the FM18 EM signal a specified period of time after the cooling fan /5 (FM18) is turned ON. This abnormal condition recurs even a specified period of time after FM18 is turned OFF and then ON again, and an error detection signal (24V cut off) is detected.
Causes: Confirmation of the wiring harness and the connector Cooling fan /5 (FM18) Printer control board (PRCB) DC power supply /2 (DCPS2)

Code: C-5321
Description: The blowout of ICP for the cooling fan /5 (FM18) is checked. An abnormal condition occurs with the FM18 EM signal a specified period of time after FM18 is turned ON. This abnormal condition recurs even a specified period of time after FM18 is turned OFF and then ON again, and an error detection signal (blowout of ICP) is detected.
Causes: Confirmation of the wiring harness and the connector Cooling fan /5 (FM18) Printer control board (PRCB) DC power supply /2 (DCPS2)

Code: C-5322
Description: Rotation of the cooling fan /5 (FM18) is checked. An abnormal condition occurs with the FM18 EM signal a specified period of time after FM18 is turned ON. This abnormal condition recurs even a specified period of time after FM18 is turned OFF and then ON again, and an error detection signal (24V cut off) is not detected.
Causes: Confirmation of the wiring harness and the connector Cooling fan /5 (FM18) Printer control board (PRCB) DC power supply /2 (DCPS2)

Code: C-5330
Description: The rotation of the power supply cooling fan /3 (FM32) is checked. An abnormal condition occurs with the FM32 EM signal a specified period of time after FM32 is turned ON. This abnormal condition recurs even a specified period of time after FM32 is turned OFF and then ON again, and an error detection signal (24V cut off) is not detected.
Causes: Confirmation of the wiring harness and the connector Power supply cooling fan /3 (FM32) DC power supply /2 (DCPS2)

Code: C-6101
Description: The scanner home sensor (PS5) does not turn ON within a specified period of time after the home position search is started.
Causes: Confirmation of the wiring harness and the connector Scanner motor (M13) Scanner home sensor (PS5) Scanner drive board (SDB) Printer control board (PRCB) DC power supply /2 (DCPS2)

Code: C-6301
Description: The rotation of the scanner cooling fan (FM7) is checked, and 24V power source is also checked. An abnormal condition occurs with the FM7 EM signal a specified period of time after FM7 turns ON. This abnormal condition recurs even a specified period of time after FM7 is turned OFF and then turned ON, and an error detection signal (24V cut off) is detected.
Causes: Confirmation of the wiring harness and the connector Scanner cooling fan (FM7) Scanner drive board (SDB) Printer control board (PRCB) DC power supply /2 (DCPS2)

Code: C-6701
Description: When processing images, a filter coefficient cannot be created normally.
Causes: Confirmation of the wiring harness and the connector Reinstalling firmware Overall control board (OACB)

Code: C-6702
Description: FIFO address abnormality for the scanner. While in the image read, the compression of image data that is read in is not correctly terminated.
Causes: Confirmation of the wiring harness and the connector Overall control board (OACB) (Gate array damaged)

Code: C-6703
Description: After negation of SVV, the compression of images that are read in and their development into the page memory are not terminated within a specified period of time.
Causes: Confirmation of the wiring harness and the connector Overall control board (OACB) (Gate array damaged)

Code: C-6704
Description: While in the image read, the compression processing from the scanner into the memory does not terminate within a specified period of time. The development from the scanner into the page memory does not terminate within a specified period of time. The SVV is not detected within a specified period of time.
Causes: Confirming the DF operation Confirmation of the wiring harness and the connector Overall control board (OACB) Printer control board (PRCB)

Code: C-6705
Description: When reading images, in spite of no resource provided, an inappropriate processing such as an access to the compression device is made.
Causes: Confirmation of the wiring harness and the connector Reinstalling firmware Overall control board (OACB

Code: C-6706
Description: While in the image read, SVV does not turn OFF within a specified period of time and the preparation for scanning the next page cannot be started.
Causes: Confirmation of the wiring harness and the connector Overall control board (OACB)

Code: C-6707
Description: Shading correction abnormality (GA abnormality).
Causes: Confirmation of the wiring harness and the connector Reinstalling firmware Overall control board (OACB)

Code: C-6708
Description: AOC/AGC adjustment abnormality. The light blocking cover at the read section and the lens cover are removed. • The connector of the CCD board is disconnected. • The power cable of the CCD board is unplugged. • The ICP of the CCD board is cut off. The light volume of the exposure lamp is excessive. The exposure lamp does not light up.
Causes: 1. CCD related parts Confirmation of the wiring harness and the connector CCD board (CCDB) Overall control board (OACB) 2. Exposure lamp related parts Confirmation of the wiring harness and the connector Exposure lamp (L4) L4 inverter (L4INVB) Scanner drive board (SDB)

Code: C-6709#
Description: The adjustment data evacuated by resolutions is not available.
Causes: Confirmation of the wiring harness and the connector Overall control board (OACB)

Code: C-6710#
Description: A density conversion gamma curve cannot be created normally.
Causes: Confirmation of the wiring harness and the connector Overall control board (OACB)

Code: C-6711
Description: Calibration start abnormality.
Causes: Confirmation of the wiring harness and the connector Reinstalling firmware Overall control board (OACB)

Code: C-6712
Description: Calibration completion abnormality.
Causes: Confirmation of the wiring harness and the connector Reinstalling firmware Overall control board (OACB)

Code: C-6713
Description: Despite of the MPC not being terminated, the initial sampling of the APC is attempted.
Causes: Confirmation of the wiring harness and the connector Reinstalling firmware Overall control board (OACB)

Code: C-6714
Description: While executing the APC, the execution of the MPC is attempted.
Causes: Confirmation of the wiring harness and the connector Reinstalling firmware Overall control board (OACB)

Code: C-6716
Description: When a clock for the image write is abnormal, the sub scan beam interval is attempted to be corrected.
Causes: Confirmation of the wiring harness and the connector Reinstalling firmware Overall control board (OACB)

Code: C-6717
Description: Sequentially shot page area abnormality. Due to an image area abnormality on the memory, images cannot be developed on the memory.
Causes: Confirmation of the wiring harness and the connector Reinstalling firmware Overall control board (OACB)

Code: C-6718
Description: The PVV is turned ON before the initial APC start processing is completed.
Causes: Confirmation of the wiring harness and the connector Reinstalling firmware Write unit Overall control board (OACB) Printer control board (PRCB)

Code: C-6719
Description: The scan operation starts before the original skew adjustment is terminated. (The skew adjustment is too late.)
Causes: Confirming the DF operation Confirmation of the wiring harness and the connector Original skew sensor /Rr (PS311: DF) Original skew sensor /Rr (PS312: DF) Overall control board (OACB)

Code: C-6721
Description: The AGC is retried due to the decreased light volume of the exposure lamp. However, no error occurs.
Causes: Confirmation of the wiring harness and the connector Exposure lamp (L4) L4 inverter (L4INVB) Scanner drive board (SDB)

Code: C-6723
Description: Due to the paper skew correction amount being in excess of the permissible limit, the print is made with the leading edge shifted.
Causes: Confirming the DF operation Confirmation of the wiring harness and the connector Original skew sensor /Rr (PS311: DF) Original skew sensor /Rr (PS312: DF) Overall control board (OACB)

Code: C-6801
Description: A communication error between OACB and OB1 is checked.
Causes: Confirmation of the wiring harness and the connector Operation board /1 (OB1) Operation board /3 (OB3) Overall control board (OACB)

Code: C-8001
Description: Although the main body sends out data according to the data retransmission request made by the DF, a retransmission request signal is received again.
Causes: Confirmation of the wiring harness and the connector DF control board (DFCB: DF) Overall control board (OACB: main body)

Code: C-8002
Description: When a checksum error or an SRGA reception error was detected while in the reception in serial communication, a signal was sent to make a request for sending data again. And when data is being received upon this request, a checksum error or an SRGA reception error is detected again.
Causes: Confirmation of the wiring harness and the connector DF control board (DFCB: DF) Overall control board (OACB: main body)

Code: C-8003
Description: When the main power switch (SW1) is ON, there is no response to the initial communication request from the main body to the DF even after a specified period of time elapses.
Causes: Confirmation of the wiring harness and the connector DF control board (DFCB)

Code: C-8201
Description: Tray up/down motor (M303) abnormality.
Causes: Confirmation of the wiring harness and the connector Confirmation of the original tray up/down drive parts Tray up/down motor (M303) DF control board (DFCB)

Code: C-8301
Description: Cooling fan (FM301) abnormality.
Causes: Confirmation of the wiring harness and the connector Cooling fan (FM301) DF control board (DFCB)

Code: C-8401
Description: Original registration sensor (PS306) abnormality.
Causes: Confirming the sensor operation Confirmation of the wiring harness and the connector Original registration sensor (PS306) DF control board (DFCB)

Code: C-8402
Description: Original conveyance sensor (PS308) abnormality.
Causes: Confirming the sensor operation Confirmation of the wiring harness and the connector Original conveyance sensor (PS308) DF control board (DFCB)

Code: C-8403
Description: Original reverse sensor (PS309) abnormality.
Causes: Confirming the sensor operation Confirmation of the wiring harness and the connector Original reverse sensor (PS309) DF control board (DFCB)

Code: C-8404
Description: Non-volatile memory error.
Causes: Confirmation of the wiring harness and the connector DF control board (DFCB)

Code: C-8405
Description: Reverse jam sensor (PS304) abnormality.
Causes: Confirming the sensor operation Confirmation of the wiring harness and the connector Reverse jam sensor (PS304) DF control board (DFCB)

Code: C-8406
Description: Original reverse/exit sensor (PS313) abnormality.
Causes: Confirming the sensor operation Confirmation of the wiring harness and the connector Original reverse/exit sensor (PS313) DF control board (DFCB)

Code: C-A001
Description: DMA abnormality.
Causes:

Code: C-A002
Description: HDD/2 (HDD2) abnormality.
Causes: Confirmation of the wiring harness and the connector HDD/2 (HDD2) PCI relay board (PCIRB) IC board (ICB) Overall control board (OACB)

Code: C-A003
Description: IC cooling fan (FM28) abnormality.
Causes: Confirmation of the wiring harness and the connector IC cooling fan (FM28) PCI relay board (PCIRB) IC board (ICB) Overall control board (OACB)

Code: C-A004
Description: FATAL error.
Causes:

Code: C-A005
Description: The CF card in ICB is different from the program version of the HDD/2 (HDD2).
Causes: Reinstalling IC firmware IC board (ICB)

Code: C-A006
Description: While in the security ON, the unlock of the HDD/2 (HDD2) results in failure. (Due to the mismatch of the password)
Causes: Confirmation of the wiring harness and the connector HDD/2 (HDD2) IC board (ICB)

Code: C-A007
Description: While in the security ON, an unlocked HDD is connected.
Causes: Confirmation of the wiring harness and the connector HDD/2 (HDD2) IC board (ICB)

Code: C-A008
Description: An unformatted HDD/2 (HDD2) is detected.
Causes: Confirmation of the wiring harness and the connector Hard disk format HDD/2 (HDD2)

Code: C-A101
Description: The communication from ICB to the overall control board (OACB) is blocked.
Causes: Confirmation of the wiring harness and the connector PCI relay board (PCIRB) IC board (ICB) Overall control board (OACB)

Code: C-C101
Description: Initial communication error between OACB/PRCB. When the main power switch (SW1) is turned ON, a response from the printer control board (PRCB) is not received even after a specified period of time elapses.
Causes: Confirmation of the wiring harness and the connector Overall control board (OACB) Printer control board (PRCB)

Code: C-C102
Description: Communication error between OACB/PRCB.
Causes: Confirmation of the wiring harness and the connector Overall control board (OACB) Printer control board (PRCB)

Code: C-C103
Description: Communication error between OACB/OB1.
Causes: Confirmation of the wiring harness and the connector Operation board /1 (OB1) Operation board /3 (OB3) Overall control board (OACB)

Code: C-C104
Description: When the main power switch (SW1) is ON, a region into which no write was made by the ISW is detected in the printer control program.
Causes: S and CA program

Code: C-C106
Description: While in the data transmission by the ISW, a formal header information cannot be received within a specified period of time.
Causes: USB cable USB port on PC

Code: C-C107
Description: While in the data transmission by the ISW, a checksum error or header error is detected with the download data.
Causes: USB cable Program file corruption

Code: C-C108
Description: When ISW transfers data, the data is not written into the flash ROM correctly.
Causes: USB cable The board to which the data is transferred.

Code: C-C109
Description: When the main power switch (SW1) is ON, a region into which no write was made by the ISW is detected in the FS control program.
Causes: FS control program

Code: C-C117
Description: When turning the sub power switch (SW2) ON, ISW unwritten area in the GP program was detected.
Causes: GP control firmware

Code: C-C119
Description: When turning the sub power switch (SW2) ON, ISW unwritten area in the MK program was detected.
Causes: I/F board (IFB)

Code: C-C120
Description: When the main power switch (SW1) is ON, a region into which no write was made by the ISW is detected in the DF control program.
Causes: Confirmation of the wiring harness and the connector DF control board (DFCB: DF) Overall control board (OACB: main body)

Code: C-C125
Description: When the main power switch (SW1) is ON, a region into which no write was made by the ISW is detected in the IC program.
Causes: IC program

Code: C-D001
Description: HDD/1 (HDD1) initialization abnormality. The HDD1 is defective, or the connector is poorly connected.
Causes: Confirmation of the wiring harness and the connector Reinstalling firmware HDD/1 (HDD1) Overall control board (OACB)

Code: C-D002
Description: The JOB information cannot be stored on the HDD/1 (HDD1).
Causes: Confirmation of the wiring harness and the connector Reinstalling firmware HDD/1 (HDD1) Overall control board (OACB)

Code: C-D003
Description: When HDD/1 (HDD1) JOB auto deletion is being executed, a route cannot be opened.
Causes: Confirmation of the wiring harness and the connector Reinstalling firmware HDD/1 (HDD1) Overall control board (OACB)

Code: C-D004
Description: HDD/1 (HDD1) access defective. The HDD1 is defective, or the connector is poorly connected.
Causes: Confirmation of the wiring harness and the connector Reinstalling firmware HDD/1 (HDD1) Overall control board (OACB)

Code: C-D010
Description: HDD overwrite erase is conducted.
Causes:

Code: C-D101
Description: Tandem communication error
Causes: Confirmation of the wiring harness and the connector Confirmation of the network connection for tandem Confirmation of the tandem setting of both machine Overall control board (OACB)

Code: C-D102
Description: Tandem image transmission error
Causes: Confirmation of the wiring harness and the connector Confirmation of the network connection for tandem Confirmation of the tandem setting of both machine Overall control board (OACB)

Code: C-E001
Description: The message queue is insufficient or destroyed.
Causes: Confirmation of the wiring harness and the connector PCI relay board (PCIRB) IC board (ICB) Overall control board (OACB)

Code: C-E002
Description: The parameter value is in excess of the permissible limits.
Causes: Confirmation of the wiring harness and the connector PCI relay board (PCIRB) IC board (ICB) Overall control board (OACB)

Code: C-E003
Description: The ID of the task that sends the message queue is undefined.
Causes: Confirmation of the wiring harness and the connector PCI relay board (PCIRB) IC board (ICB) Overall control board (OACB)

Code: C-E004
Description: The receiving event of the message is undefined.
Causes: Confirmation of the wiring harness and the connector PCI relay board (PCIRB) IC board (ICB) Overall control board (OACB)

Code: C-E005
Description: Memory access abnormality.
Causes: Confirmation of the wiring harness and the connector PCI relay board (PCIRB) IC board (ICB) Overall control board (OACB)

Code: C-E006
Description: Header readout address abnormality.
Causes:

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[SOLVED] Quick fix Konica-Minolta 950 pro list error codes