Description: Abnormally low fuser temperature • The temperature detected by the thermistor remains lower than a predetermined value for a predetermined period of time.
Causes: Fuser unit Printer control board (PRCB) DC power supply (DCPU)
Remedy: 1 Check the fuser unit for correct installation (whether it is secured in position). - - 2 Check the fuser unit, DCPU, and PRCB for proper connection and correct as necessary. - - 3 Change fuser unit. - - 4 Change PRCB. - - 5 Change DCPU.
Code: 0520
Description: Abnormally high fuser temperature • The temperature detected by the thermistor is a predetermined value or higher for a predetermined period of time.
Causes: Fuser unit Printer control board (PRCB) DC power supply (DCPU)
Remedy: 1 Check the fuser unit for correct installation (whether it is secured in position). - - 2 Check the fuser unit, DCPU, and PRCB for proper connection and correct as necessary. - - 3 Change fuser unit. - - 4 Change PRCB. - - 5 Change DCPU.
Code: 0F51
Description: Waste toner full sensor trouble • Waste toner full sensor detects abnormal situation
Causes: Waste toner full sensor (PS7) Printer control board (PRCB)
Remedy: 1 Check the PRCB connector for proper connection and correct as necessary. - - 2 PS7 sensor check. - - 3 Change PRCB.
Code: 13C0
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.
Causes: Printer control board (PRCB)
Remedy: 1 Check the PRCB connector for proper connection and correct as necessary. - - 2 Change PRCB.
Code: 13DD
Description: Backup data error • The printer determines that EEPROM is yet to be mounted when the main power switch is turned ON.
Causes: Printer control board (PRCB)
Remedy: 1 Confirm mounting status of EEPROM on the printer control board, and make modification if necessary. - - 2 Change PRCB.
Code: 13E2
Description: Flash ROM write error • Flash ROM writing is found faulty during a check.
Causes: Printer control board (PRCB) MFP board (MFPB)
Remedy: 1 Check the cable and connector for proper connection and correct as necessary. - - 2 Change PRCB. - - 3 Change MFPB.