• Code: C2A04
• Description: Black toner cartridge EEPROM access error
• Remedy: 1 Clean the connection between the toner cartridge and the machine if dirty 2 Reinstall toner cartridge - - 3 Check the harness for proper connection and correct as necessary. 4 Change toner cartridge. 5 Change MFPB.

• Code: C3101
• Description: Fusing pressure roller separation failure
  • With the pressure roller being retracted, the pulse of the encoder sensor does not change even after the specified period of time has passed after the fusing pressure roller pressure/retraction motor started rotating. • With the pressure roller being pressed, the encoder pulse sensor does not change even after the specified period of time has passed after the fusing pressure roller pressure/retraction motor started rotating. • With the pressure roller being pressed, the fusing roller retraction sensor did not turn ON (pressed) even after the encoder pulse sensor counted up the specified number of pulse after the fusing pressure roller pressure/retraction motor started rotating.
• Remedy: 1 Check the connector of motor for proper connection and correct as necessary. 2 PC23 I/O check, sensor check MFPB CNDM4-12 (ON) K-8 3 PC23 operation check. 4 M24 operation check MFPB CNDM4-13 to 14 K-8. 5 Change fusing unit. 6 Change MFPB.

• Code: C3201
• Description: Fusing drive motor failure to turn
  • The motor 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 loading status of the fusing unit drive, and correct the error as necessary. 3 Check the fusing unit, MFPB for proper connection and correct or change as necessary. 4 M2 operation check MFPB CNDM4-5 (REM) MFPB CNDM4-8 (LOCK) K-7. 5 Change MFPB.

• 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 M4 operation check MFPB CNDM4-5 (REM) MFPB CNDM4-8 (LOCK) K-7. 2 Change MFPB.

• Code: C3301
• Description: Fusing cooling fan Motor/1’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 connector of motor for proper connection and correct as necessary. 2 Check the fan for possible overload and correct as necessary. 3 M11 operation check MFPB CNDM1-12 (ON) MFPB CNDM1-14 (LOCK) L-1. 4 Change MFPB.

• Code: C3302
• Description: Fusing cooling fan motor/2’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 connector of motor for proper connection and correct as necessary. 2 Check the fan for possible overload and correct as necessary. 3 M13 operation check MFPB CNR2FAN-10 (ON) MFPB CNR2FAN-12 (LOCK) L-3. 4 Change MFPB.

• Code: C3451
• Description: Heat. heater trouble
  • The heating roller thermistor/1 (TH1) fails to raise a given degree of temperature even after the lapse of a given period of time after the Heating roller heater lamp/1 (H1) is turned ON. • When the warm up started and the highest temperature and the lowest temperature of the heating roller thermistor/1 (TH1) are compared for the specified period of time, the difference of these two is either lower than the specified value or at the specified value or over. • During the warm up, if the counted value for zero cross signal input is not modified for the specified period of time, the zero cross signal error will be counted. This malfunction will be detected when the counted value exceeds the specified value.
• Remedy: 1 Check the fusing unit for correct installation (whether it is secured in position). 2 Check the open/close operation of the right door. 3 Check the fusing unit, MFPB and DCPU for proper connection and correct or change as necessary. 4 Change fusing unit. 5 Change MFPB. 6 Change DCPU.

• Code: C3452
• Description: Press. heater trouble
  • When the warm up started, if the temperature detected by the fusing pressure roller thermistor/1 (TH2) is at the specified value or under, and lower than the temperature detected by the heating roller thermistor/1 (HT1) for a specified degree, the highest temperature and the lowest temperature detected by the fusing pressure roller thermistor/1 (TH2) are compared for the specified period of time. The malfunction will be detected if the temperature difference is either lower than specified or at the specified value or over. • Voltage for the fusing pressure roller heater lamp (H3) at the time of stand-by after the warm up will be measured to be set as the reference value. After the temperature adjustment for the fusing pressure roller, if the temperature detected by the fusing pressure roller thermistor/1 (TH2) is lower than the specified, the voltage will be measured again to be compared with the reference value. The malfunction will be detected when the difference between the reference value and the measured value is at the specified value or over for the specified period of time.
• Remedy: 1 Check the fusing unit for correct installation (whether it is secured in position). 2 Check the open/close operation of the right door. 3 Check the fusing unit, MFPB and DCPU for proper connection and correct or change as necessary. 4 Change fusing unit. 5 Change MFPB. 6 Change DCPU.