Description: Faulty OHP sensor
• It is determined that the OHP sensor is faulty through a check made at the end of the predrive.
Remedy: 1 Check the PRCB connector for proper connection and correct as necessary. 2 PS2 sensor check. 3 Change PRCB.
Code: 23H
Description: Faulty waste toner near full detection board
• It is determined that the LED and photo receiver are faulty through a check made when a new drum cartridge is detected.
Remedy: 1 Check the WTDTB/LED connector for proper connection and correct as necessary. 2 Check the PRCB connector for proper connection and correct as necessary. 3 Change the drum cartridge. 4 Change WTDTB/LED. 5 Change PRCB.
Code: 24H
Description: Faulty fusing thermistor resistor
• The heater lamp remains ON for a predetermined consecutive period of time.
Remedy:
Code: 29H, 2AH. 2BH, 2CH
Description: Trouble related to security
• Contact the responsible people of KONICA MINOLTA when not returning in power switch OFF/ON.
Remedy:
Code: 2DH
Description: Trouble related to security
• Re-write the controller firmware.
• Contact the responsible people of KONICA MINOLTA when not returning in power switch OFF/ON.
Remedy:
Code: 31H
Description: IR cooling fan motor malfunction
• The fan motor lock signal remains HIGH for a predetermined consecutive period of time while the cooling fan motor remains energized.
Remedy: 1 Check the FM3 connector for proper connection and correct as necessary. 2 Check FM3 for proper drive coupling and correct as necessary. 3 Check the PRCB connector for proper connection and correct as necessary. 4 FM3 operation check. 5 Change PRCB. 6 Change DCPU2. 7 Change DCPU1.