Code :

Code: C5102, C5103
Description: • C5102: Main motor failure to turn • C5103: Main motor turning at abnormal timing Trouble detection condition • 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: • Main motor (M1) • MFP board (MFPB)
Remedy: 1. Check the connector between M1-MFPB CN6E for proper connection and correct as necessary. 2. M1 operation check • Control signal: MFPB CN6E-4 to 7 • Location of electrical component: 2-C 3. Replace M1. 4. MFPB F9E conduction check 5. Replace MFPB.

Code: C5307
Description: UFP fan motor failure The fan lock signal remains HIGH for a predetermined continuous period of time while the fan is turning.
Causes: • UFP fan motor (FM5) • MFP board (MFPB)
Remedy: 1. Check the connector between FM5-relay CN158-relay CN90-MFPB CN10E for proper connection and correct as necessary. 2. Check the fan for possible overload and correct as necessary. 3. FM5 operation check • Control signal: MFPB CN10E-9 (LOCK) • Location of electrical component: 5-C 4. Replace FM5. 5. MFPB F2E and F4E conduction check 6. Replace MFPB.

Code: C5351
Description: DC power supply fan motor failure. The fan lock signal remains HIGH for a predetermined continuous period of time while the fan is turning.
Causes: • DC power supply fan motor (FM1) • MFP board (MFPB)
Remedy: 1. Check the connector between FM1-relay CN304-MFPB CN12E 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 CN12E-15 (LOCK) • Location of electrical component: 27-C 4. Replace FM1. 5. MFPB F2E conduction check 6. Replace MFPB.

Code: C5353
Description: Cooling fan motor/2 failure (Europe model only) The fan lock signal remains HIGH for a predetermined continuous period of time while the fan is turning.
Causes: • Cooling fan motor/2 (FM6) • MFP board (MFPB)
Remedy: 1. Check the connector between FM6-relay CN302-MFPB CN12E for proper connection and correct as necessary. 2. Check the fan for possible overload and correct as necessary. 3. FM6 operation check • Control signal: MFPB CN12E-12 (LOCK) • Location of electrical component: 27-C 4. Replace FM6. 5. MFPB F2E conduction check 6. Replace MFPB.

Code: C5357
Description: Cooling fan motor/1 failure The fan lock signal remains HIGH for a predetermined continuous period of time while the fan is turning.
Causes: • Cooling fan motor/1 (FM2) • MFP board (MFPB)
Remedy: 1. Check the connector between FM2-relay CN303-MFPB CN12E for proper connection and correct as necessary. 2. Check the fan for possible overload and correct as necessary. 3. FM2 operation check • Control signal: MFPB CN12E-9 (LOCK) • Location of electrical component: 26-C 4. Replace FM2. 5. MFPB F2E conduction check 6. Replace MFPB.

Code: C5360
Description: Clean unit fan's failure to turn (When CU-202 is installed) The fan lock signal remains HIGH for a predetermined continuous period of time while the fan is turning.
Causes: • Exhaust fan/1 (FM1) • Exhaust fan/2 (FM2) • Exhaust fan/3 (FM3) • Clean unit drive board (CUDB) • MFP board (MFPB)
Remedy: 1. Check the connector between CUDB CN1-relay CN400-MFPB CN26E for proper connection and correct as necessary. 2. Check the connector between FM1-relay CN401-CUDB CN2 for proper connection and correct as necessary. 3. Check the connector between FM2-relay CN402-CUDB CN2 for proper connection and correct as necessary. 4. Check the connector between FM3-relay CN403-CUDB CN2 for proper connection and correct as necessary. 5. Check the fan for possible overload and correct as necessary. 6. FM1 operation check • Control signal: CUDB CN2-1 (REM), CUDB CN2-3 (LOCK) • Location of electrical component: 26-L 7. FM2 operation check • Control signal: CUDB CN2-4 (REM), CUDB CN2-6 (LOCK) • Location of electrical component: 27-L 8. FM3 operation check • Control signal: CUDB CN2-7 (REM), CUDB CN2-9 (LOCK) • Location of electrical component: 27-L 9. Replace the defective fan. (FM1 / FM2 / FM3) 10. Replace CUDB. 11. MFPB F11E conduction check 12. Replace MFPB.

Code: C5372
Description: MFP control board CPU temperature failure Temperature failure of CPU on the MFP board was detected.
Causes: MFP board (MFPB)
Remedy: 1. Reboot the machine. 2. Check for clogging in the ventilation path between the MFPB and the power supply cooling fan, and correct as necessary. 3. 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 (DCPS) • MFP board (MFPB)
Remedy: 1. Check the fusing unit for correct installation (whether it is secured in position). 2. Check DCPS CN3-MFPB CN1E for proper connection and correct or change as necessary. 3. Check the fusing unit-DCPS CN2 for proper connection and correct or change as necessary. 4. Replace the fusing unit. 5. Replace MFPB. 6. Replace DCPS.