Code :

Code: C5102, C5103
Description: • C5102: Transport motor failure to turn • C5103: Transport motor turning at abnormal timing. • C5102: The motor lock signal remains HIGH for a predetermined continuous period of time while the motor is turning. • C5103: The motor lock signal remains LOW for a predetermined continuous period of time while the motor remains stationary.
Causes: • Transport motor (M1) • MFP board (MFPB)
Remedy: 1. Check the connector between M1-MFPB CN8E for proper connection and correct as necessary. 2. Check the loading status of the transfer belt drive, and correct the error as necessary. 3. M1 operation check • Control signal: MFPB CN8E-3 (REM), MFPB CN8E-6 (LOCK) • Location of electrical component: 2-C 4. Replace M1. 5. Replace MFPB.

Code: C5351
Description: Power supply cooling fan motor failure to turn. The fan lock signal remains HIGH for a predetermined continuous period of time while the fan is turning.
Causes: • Power supply cooling fan (FM1) • MFP board (MFPB)
Remedy: 1. Check the connector between FM1-relay CN26-MFPB CN24EA for proper connection and correct as necessary. 2. Check the fan for possible overload and correct as necessary. 3. FM1 operation check • Control signal: MFPB CN24EA-9 (REM), MFPB CN24EA-11 (LOCK) • Location of electrical component: 25-J 4. Replace FM1. 5. Replace MFPB.

Code: C5355
Description: Toner cartridge cooling fan failure to turn. The fan lock signal remains HIGH for a predetermined continuous period of time while the fan is turning.
Causes: • Toner cartridge cooling fan (FM4) • MFP board (MFPB)
Remedy: 1. Check the connector between FM4-relay CN157-MFPB CN15EB for proper connection and correct as necessary. 2. Check the fan for possible overload and correct as necessary. 3. FM4 operation check • Control signal: MFPB CN15EB-6 (REM), MFPB CN15EB-8 (LOCK) • Location of electrical component: 9-C 4. Replace FM4. 5. Replace MFPB.

Code: C5360
Description: Clean unit fan failure to turn (When CU-101 is installed). The fan lock signal remains HIGH for a predetermined continuous period of time while the fan is turning.
Causes: • Exhaust fan/1 (FM14) • Exhaust fan/2 (FM15) • Suction fan (FM16) • Clean unit drive board (CUDB) • MFP board (MFPB)
Remedy: 1. Check the connector between CUDB CN1-MFPB CN32E for proper connection and correct as necessary. 2. Check the connector between FM14-CUDB CN3, FM15-CUDB CN2, FM16-relay CN183-CUDB CN4 for proper connection and correct as necessary. 3. Check the fan for possible overload and correct as necessary. 4. FM14, FM15, FM16 operation check • Load check: Check code42, Multi code 4 • Control signal: CUDB CN3 (FM14), CUDB CN2 (FM15), CUDB CN4 (FM16) • Location of electrical component: 14-X 5. Replace the defective fan. (FM14 / FM15 / FM16) 6. Replace CUDB. 7. MFPB ICP14E conduction check 8. Replace MFPB.

Code: C5370
Description: Rear side cooling fan failure to turn. The fan lock signal remains HIGH for a predetermined continuous period of time while the fan is turning.
Causes: • Rear side cooling fan (FM3) • MFP board (MFPB)
Remedy: 1. Check the connector between FM3-relay CN301-MFPB CN13 for proper connection and correct as necessary. 2. Check the fan for possible overload and correct as necessary. 3. FM3 operation check • Control signal: MFPB CN13-3 (LOCK), MFPB CN13-4 (REM) • Location of electrical component: 20-C 4. Replace FM3. 5. Replace MFPB.

Code: C5501
Description: AC signal abnormality. The zero cross signal is not input during fusing phase control.
Causes: • Fusing unit • DC power supply (DCPU) • MFP board (MFPB)
Remedy: 1. Check the fusing unit for correct installation (whether it is secured in position). 2. Check the fusing unit and DCPU for proper connection and correct or change as necessary. 3. Replace the fusing unit. 4. Replace MFPB. 5. Replace DCPU.

Code: C5601
Description: Engine control malfunction. Engine control malfunction is detected with port monitor control.
Causes: MFP board (MFPB)
Remedy: 1. Check the connectors on MFPB for proper connection and correct as necessary. 2. Rewrite the firmware. 3. Replace MFPB.

Code: C5603
Description: Front side communication error. Communication error is detected in front side board.
Causes: • Front side board (FRB) • PH unit • MFP board (MFPB)
Remedy: 1. Reboot the machine. 2. Check the connector between FRB CN5-PH unit for proper connection and correct as necessary. 3. Check the connector between FRB CN2-MFPB CN10E for proper connection and correct as necessary. 4. Replace FRB. 5. Replace the PH unit. 6. MFPB ICP8E conduction check 7. Replace MFPB.