• Code: 04
• 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: 05
• Description: Flash ROM malfunction
  • Firmware upgrading has failed.
• Remedy: 1 Check the PRCB connector for proper connection and correct as necessary. 2 Change PRCB.

• Code: 08
• 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. 2500W: PRCB PJ8PRCB-5 (REM) PRCB PJ8PRCB-8 (LOCK) 2530 DL: PRCB PJ8PRCB-5(REM) PRCB PJ8PRCB-5(LOCK) 2550/2550DN: PRCB PJ8PRCB-5(REM) PRCB PJ8PRCB-5(LOCK) 2500W: C-7 2530 DL: C-6 2550/2550DN: C-6. 5 Change PRCB. 6 Change DCPU.

• Code: 0B
• 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 the fan for possible overload and correct as necessary. 3 Check the PRCB connector for proper connection and correct as necessary. 4 FM2 operation check. 2500W: PRCB PJ10PRCB-1 (REM) PRCB PJ10PRCB-3 (LOCK) 2530 DL: PRCB PJ10PRCB-1(REM) PRCB PJ8PRCB-3(LOCK) 2550/2550DN: PRCB PJ10PRCB-1(REM) PRCB PJ8PRCB-3(LOCK) 2500W: C-6 2530 DL: C-5 2550/2550DN: C-5. 5 Change PRCB. 6 Change DCPU.

• Code: 0C
• 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 the fan for possible overload and correct as necessary. 3 Check the PRCB connector for proper connection and correct as necessary. 4 FM1 operation check. 2500W: PRCB PJ4PRCB-1 (REM) PRCB PJ4PRCBB-3 (LOCK) 2530 DL: PRCB PJ4PRCB-1 (REM) PRCB PJ4PRCB-3 (LOCK) 2550/2550DN: PRCB PJ4PRCB-1 (REM) PRCB PJ4PRCB-3 (LOCK) 2500W: C-5 2530 DL: C-4 2550/2550DN: C-4. 5 Change PRCB. 6 Change DCPU.

• Code: 0F
• Description: Cooling fan motor malfunction
• Remedy:

• Code: 10
• Description: Polygon motor malfunction
  • A LOW motor lock signal is not detected even after the lapse of a predetermined period of time after the polygon motor has been started. • The motor lock signal remains HIGH for a predetermined consecutive period of time while the polygon motor remains energized.
• Remedy: 1 Check the cable and connector for proper connection and correct as necessary. 2 Change PH unit. 3 Change PRCB.

• Code: 12
• Description: Laser malfunction
  • The SOS signal is not detected within a predetermined period of time after the output of a laser has been started. • The SOS signal is never detected in the image area.
• Remedy: 1 Check the cable and connector for proper connection and correct as necessary. 2 Change PH unit. 3 Change PRCB.