• Code: 04H
• Description: Printer control board malfunction
  • Communications with the M/C expansion IO G/A (IC on the printer control board) are not properly carried out.
• Remedy: 1 Check the PRCB connector for proper connection and correct as necessary. 2 Change PRCB.

• Code: 05H
• Description: Flash ROM malfunction
  • Engine firmware upgrading has failed.
• Remedy: 1 Check the PRCB connector for proper connection and correct as necessary. 2 Change PRCB.

• Code: 08H
• Description: Main motor malfunction
  • The motor lock signal remains HIGH for a predetermined consecutive period of time while the main motor remains energized
  • The motor lock signal remains LOW for a predetermined consecutive period of time while the main motor remains deenergized.
• Remedy: 1 Check the M1 connector for proper connection and correct as necessary. 2 Check M1 for proper drive coupling and correct as necessary. 3 Check the PRCB connector for proper connection and correct as necessary. 4 M1 operation check. 5 Change PRCB. 6 Change DCPU1.

• Code: 0BH
• Description: Ventilation fan motor malfunction
  • The fan motor lock signal remains HIGH for a predetermined consecutive period of time while the ventilation fan motor remains energized.
• Remedy: 1 Check the FM2 connector for proper connection and correct as necessary. 2 Check FM2 for proper drive coupling and correct as necessary. 3 Check the PRCB connector for proper connection and correct as necessary. 4 FM2 operation check. 5 Change PRCB. 6 Change DCPU1.

• Code: 0CH
• Description: Power supply cooling fan motor malfunction
  • The fan motor lock signal remains HIGH for a predetermined consecutive period of time while the power supply cooling fan motor remains energized.
• Remedy: 1 Check the FM1 connector for proper connection and correct as necessary. 2 Check FM1 for proper drive coupling and correct as necessary. 3 Check the PRCB connector for proper connection and correct as necessary. 4 FM1 operation check. 5 Change PRCB. 6 Change DCPU1.

• Code: 0FH
• Description: Duplex cooling fan motor malfunction
• Remedy:

• Code: 101H
• Description: Scanner motor malfunction
  • A low motor lock signal is not detected even after the lapse of a predetermined period of time after the scanner motor has been started.
  • The motor lock signal remains HIGH for a predetermined consecutive period of time while the scanner motor remains energized.
• Remedy: 1 Check to see if the lock lever of the Scanner unit is unlocked and unlock the lock lever if it is locked. 2 Check the M5 connector for proper connection and correct as necessary. 3 Check M5 for proper drive coupling and correct as necessary. 4 Check the PRCB connector for proper connection and correct as necessary. 5 M5 operation check. 6 Change PRCB. 7 Change DCPU2. 8 Change DCPU1.

• Code: 102H
• Description: Faulty ir exposure lamp
  • The intensity of the light emitted from the exposure lamp of the scanner falls short of the specified value.
• Remedy: 1 Check the exposure lamp for lighting condition when the power switch is turned ON and, if any faulty symptom is evident, correct the Scanner Unit. 2 Check the PRCB connector for proper connection and correct as necessary. 3 Change scanner unit. 4 Change PRCB.nge DCPU1.