• Code: C2657
• Description: Yellow LPH correction data download failure
• Remedy: 1 Correct the harness connection between LPH and PWB-LED if faulty. 2 Correct the harness connection between PWBLED and PWB-MFPC if faulty. 3 Change LPH Assy. 4 Change PWB-LED. 5 Change PWB-MFPC. 6 Change PWB-MC.

• Code: C2658
• Description: Black LPH correction data download failure
• Remedy: 1 Correct the harness connection between LPH and PWB-LED if faulty. 2 Correct the harness connection between PWBLED and PWB-MFPC if faulty. 3 Change LPH Assy. 4 Change PWB-LED. 5 Change PWB-MFPC. 6 Change PWB-MC.

• Code: C3101
• Description: Fusing Pressure Roller pressure/retraction failure
  • No change is observed in the encoder sensor pulse even after the lapse of 0.5 sec. after the Fusing Pressure/Retraction Motor has started turning for a sequence of the Fusing Pressure Roller’s retracting motion. • No change is observed in the encoder sensor pulse even after the lapse of 0.5 sec. after the Fusing Pressure/Retraction Motor has started turning for a sequence of the Fusing Pressure Roller’s pressing motion. • The Fusing Pressure Position Sensor is not activated (pressed position) even when 30 encoder sensor pulses are counted after the Fusing Pressure/Retraction Motor has started turning for a sequence of the Fusing Pressure Roller’s pressing motion.
• Remedy: 1 Check the M9 connector for proper connection and correct as necessary. 2 PC33 I/O check PWB-MC PJ26MC-12 (ON). 3 PC33 operation check. 4 M19 operation check PWB-MC PJ14MC-5 to 6 C to D-6. 5 Change Fusing Unit. 6 Change PWB-MC.

• Code: C3201
• Description: Fusing Drive Motor’s failure to turn
  • The Fan Lock signal remains HIGH for a predetermined continuous period of time while the Motor remains stationary.
• Remedy: 1 Check the M2 connector for proper connection and correct as necessary. 2 Check the Fusing Unit drive for possible overload and correct as necessary. 3 Check the PWB-MC connector for proper connection and correct as necessary. PWB-MC PJ2MC-5 (DC24 V) H-2. 4 M2 operation check PWB-MC PJ31MC-10 (REM) PWB-MC PJ31MC-13 (LOCK) C to D-17. 5 Change PWB-MC.

• Code: C3202
• Description: Fusing Drive Motor turning at abnormal timing
  • The Motor Lock signal remains LOW for a predetermined continuous period of time while the Motor remains stationary.
• Remedy: 1 M2 operation check PWB-MC PJ31MC-10 (REM) PWB-MC PJ31MC-13 (LOCK) C to D-17. 2 Change PWB-MC.

• Code: C3301
• Description: Fusing Cooling Fan Motor/1 failure to turn
  • The Fan Lock signal remains HIGH for a predetermined continuous period of time while the Motor remains stationary
• Remedy: 1 Check the connector of motor for proper connection and correct as necessary. 2 Check the fan for possible overload and correct as necessary. 3 M9 operation check PWB-MC PJ6MC-4 (REM) PWB-MC PJ6MC-6 (LOCK) K-9. 4 Change PU-1.

• Code: C3302
• Description: Fusing Cooling Fan Motor/1 or Fusing Cooling Fan Motor/2 failure to turn
  • The Fan Lock signal remains HIGH for a predetermined continuous period of time while the Motor remains stationary.
• Remedy: 1 Check the connector of motor for proper connection and correct as necessary. 2 Check the fan for possible overload and correct as necessary. 3 M15, M16 operation check PWB-MC PJ15MC-4 (REM) PWB-MC PJ15MC-6 (LOCK) PWB-MC PJ15MC-7 (REM) PWB-MC PJ15MC-9 (LOCK) C to D-21. 4 Change PWB-MC.

• Code: C3451
• Description: Heating Roller warm-up failure
  • The temperature of the Heating Roller does not reach 100 °C within 50 sec. after the Heating Roller Heater Lamp has been turned ON. • The temperature of the Heating Roller does not reach 100 °C and that of the Fusing Pressure Roller does not reach 195 °C within 200 sec. after the Heating Roller Heater Lamp has been turned ON. • The voltage of the Heating Roller Thermistor does not increase by five steps within 20 sec. after the Heating Roller Heater Lamp has been turned ON. • No zero cross signal is detected even with the lapse of 1 sec. or more after the Heating Roller Heater Lamp has been turned ON.
• Remedy: 1 Check the Fusing Unit for correct installation (whether it is secured in position). 2 Check the Fusing Unit, PWB-MC and PU1 for proper connection and correct or change as necessary. 3 Change Fusing Unit. 4 Change PWB-MC. 5 Change PU1.