• Code: 0310
• 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.

• Code: 0500
• Description: Fuser warm-up failure
  • The thermistor does not detect a predetermined temperature value even after the lapse of a predetermined period of time after the current warm-up cycle has been started and the current warm-up cycle is thus not completed.
• Remedy: 1 Change fuser unit. 2 For magicolor 1600W: 2.1. Main switch is turned ON. 2.2. Open the top cover. 2.3. Press the following keys in this order. Rotate Toner key - Clear key - Clear key - Rotate Toner key. 2.4. Main switch is turned OFF/ON. For magicolor 1650EN: 2.1. Main switch is turned ON. 2. Execute [SERVICE MENU] - [FUSER UNLOCK]. 3 Change PRCB. 4 Change DCPU.

• Code: 0502
• Description: Thermistor open-circuit failure
  • The temperature detected by the thermistor does not reach a predetermined level even after the lapse of a given period time after the warm-up cycle has been started.
• 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: 0503
• Description: Thermistor resistance failure
  • The heater lamp remains ON for a predetermined consecutive period of time.
• Remedy: 1 Change fuser unit. 2 For magicolor 1600W: 2.1. Main switch is turned ON. 2.2. Open the top cover. 2.3. Press the following keys in this order. Rotate Toner key - Clear key - Clear key - Rotate Toner key. 2.4. Main switch is turned OFF/ON. For magicolor 1650EN: 2.1. Main switch is turned ON. 2. Execute [SERVICE MENU] - [FUSER UNLOCK]. 3 Change PRCB. 4 Change DCPU.

• Code: 0510
• Description: Abnormally low fuser temperature
  • The temperature detected by the thermistor remains lower than a predetermined value for a predetermined period of time.
• 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.
• 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.
• 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.
• Remedy: 1 Check the PRCB connector for proper connection and correct as necessary. 2 Change PRCB.