Description: Power supply cooling fan motor's failure to turn
The fan lock signal remains HIGH for a predetermined continuous period of time while the motor remains stationary.
Remedy: 1 Check the connector between FM1-relay CN95-PRCB CN3 for proper connection and correct as necessary. 2 Check the fan for possible overload and correct as necessary. 3 FM1 operation check 4 Change FM1 5 Change PRCB
Code: 0100
Description: AC signal abnormality
Zero cross signal is not detected for a given period of interval when AC frequency is measured with the power switch ON or when fusing heater is turned ON/OFF.
Remedy: 1 Check the fusing unit for correct installation (whether it is secured in position). 2 Check the fusing unit CN30-PRCB CN16, fusing unit-relay CN4AC-DCPU CN2 for proper connection and correct or change as necessary. 3 Change fusing unit 4 Change PRCB 5 Change DCPU
Code: 0300
Description: Polygon motor rotation trouble
• The polygon motor (M9) fails to turn stably even after the lapse of a given period of time after activating the polygon motor. • Motor lock signal detects HIGH for a given period time consecutively during the polygon motor (M9) is rotating.
Remedy: 1 Check the connector between PH unit-PRCB CN19, CN20 for proper connection and correct as necessary. 2 Change PH unit 3 Change PRCB
Code: 0310
Description: Laser malfunction
• SOS signal is not detected even after the lapse of a given period of time after starting the laser output. • SOS signal is not detected for a given period of time during printing.
Remedy: 1 Check the connector between PH unit-PRCB CN19, CN20 for proper connection and correct as necessary. 2 Change PH unit 3 Change PRCB
Code: 0500
Description: Fusing heaters trouble (center)
• Detected temperature of the heating roller thermistor (TH2; center) does not go up a given range of temperature even after a lapse of given period of time at warm up. • The warm-up is not completed even after the set period of time has elapsed after the warm-up is started.
Remedy: 1 Check the fusing unit for correct installation (whether it is secured in position). 2 Check the open/close operation of the right door. 3 Check the fusing unit CN30-PRCB CN16, fusing unit-relay CN4AC-DCPU CN2 for proper connection and correct or change as necessary. 4 Change fusing unit 5 Change PRCB 6 Change DCPU
Code: 0501
Description: Fusing heaters trouble (edge)
• Detected temperature of the heating roller thermistor (TH2; edge) does not go up a given range of temperature even after a lapse of given period of time at warm up. • The warm-up is not completed even after the set period of time has elapsed after the warm-up is started.
Remedy: 1 Check the fusing unit for correct installation (whether it is secured in position). 2 Check the open/close operation of the right door. 3 Check the fusing unit CN30-PRCB CN16, fusing unit-relay CN4AC-DCPU CN2 for proper connection and correct or change as necessary. 4 Change fusing unit 5 Change PRCB 6 Change DCPU