Description: Abnormally low Heating Roller temperature
• The temperature detected by the Thermistor remains lower than a predetermined value for a predetermined period of time.
Remedy: 1 Check the Fusing Unit for correct installation (whether it is secured in position). 2 Check the Fusing Unit, PU, and PWB-A for proper connection and correct as necessary. 3 Check the lever of the Safety Switch and correct as necessary. 4 Change the Fusing Unit. 5 Change PWB-A. 6 Change PU.
Code: 1AH
Description: Abnormally high Heating Roller temperature
• The temperature detected by the Thermistor is a predetermined value or higher for a predetermined period of time.
Remedy: 1 Check the Fusing Unit for correct installation (whether it is secured in position). 2 Check the Fusing Unit, PU, and PWB-A for proper connection and correct as necessary. 3 Check the lever of the Safety Switch and correct as necessary. 4 Change the Fusing Unit. 5 Change PWB-A. 6 Change PU.
Code: 1BH
Description: Faulty Thermistor
• The condition of a temperature rise of less than 1°C extends continuously for a predetermined period of time that begins when the warm-up cycle is started.
Remedy: 1 Check the Fusing Unit for correct installation (whether it is secured in position). 2 Check the Fusing Unit, PU, and PWB-A for proper connection and correct as necessary. 3 Check the lever of the Safety Switch and correct as necessary. 4 Change the Fusing Unit. 5 Change PWB-A. 6 Change PU.
Code: 21H
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 PWB-A connector for proper connection and correct as necessary. 2 PC2A sensor check. PWB-A PJ12A-6 (ON) 2-D. 3 Change PWB-A.
Code: 23H
Description: Faulty Waste Toner Near Full Detection Board
• It is determined that the LED and photoreceiver are faulty through a check made when a new Drum Cartridge is detected.
Remedy: 1 Check the PWB-C connector for proper connection and correct as necessary. 2 Check the PWB-A connector for proper connection and correct as necessary. 3 Change the Drum Cartridge. 4 Change PWB-C. 5 Change PWB-A.
Code: 24H
Description: Faulty Fusing Thermistor Resistor
• The Heater Lamp remains ON for a predetermined consecutive period of time.