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

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

• 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 PWB-A connector for proper connection and correct as necessary. 4 M1 operation check. PWB-A PJ8A-5 (REM) PWB-A PJ8A-8 (LOCK) 2-G-H 5 Change PWB-A. 6 Change PU.

• 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 M6 connector for proper connection and correct as necessary. 2 Check the fan for possible overload and correct as necessary. 3 Check the PWB-A connector for proper connection and correct as necessary. 4 M6 operation check. PWB-A PJ10A-1 (REM) PWB-A PJ10A-3 (LOCK) 2-H. 5 Change PWB-A. 6 Change PU.

• 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 M4 connector for proper connection and correct as necessary. 2 Check the fan for possible overload and correct as necessary. 3 Check the PWB-A connector for proper connection and correct as necessary. 4 M4 operation check. PWB-A PJ4A-1 (REM) PWB-A PJ4A-3 (LOCK) 7-D. 5 Change PWB-A. 6 Change PU.U.

• Code: 10H
• 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 PWB-A.

• Code: 12H
• 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 PWB-A.

• Code: 14H
• Description: 2nd image transfer pressure /retraction failure
  • The state of the Retraction Position Sensor/2nd Image Transfer is not changed from the unblocked to blocked state even after the lapse of a predetermined period of time during predrive. • The Retraction Position Sensor/2nd Image Transfer is in the unblocked state even after the lapse of a predetermined period of time during predrive. • The Retraction Position Sensor/2nd Image Transfer is not blocked (roller in the retracted position) within a predetermined period of time after the retraction sequence of the 2nd Transfer Roller has been started. • The Retraction Position Sensor/2nd Image Transfer is not unblocked (roller in the pressed position) within a predetermined period of time after the pressure sequence of the 2nd Transfer Roller has been started.
• 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 SL4 connector for proper connection and correct as necessary. 4 Check the PWB-A connector for proper connection and correct as necessary. 5 PC5 sensor check. PWB-A PJ14A-3 (ON) 2-G 6 SL4 operation check. PWB-A PJ11A-2 (REM) 2-G 7 M1 operation check. PWB-A PJ8A-5 (REM) PWB-A PJ8A-8 (LOCK) 2-G-H 8 Change PWB-A.