• TD power pack defective
SC440 B
Transfer voltage output error
100 ms after the TD power pack started to output the transfer voltage, the feedback
voltage was detected less than 0.5 V for more than 200 ms.
• Defective high voltage cable caused a voltage leak
• TD power pack defective
SC460 B
Paper separation DC error
100 ms after the TD power pack started to output the separation charge, the
feedback voltage was detected less than 0.5 V for more than 200 ms.
• Defective high voltage cable
• TD power pack defective
Group 500: Paper Feed, Paper Transport, Fusing
SC503 B
Lift sensor 1 error
After the upper paper cassette was closed, lift sensor 1 did not switch on within 20 s
after tray lift motor 1 switched on.
-or-
Lift sensor 1 did not switch off within 1 sec. after the tray started to descend.
• Tray lift motor 1 connector loose, disconnected, broken.
• Paper or other foreign object has jammed tray lift motor 1.
• Pickup solenoid 1 connector is loose, disconnected, damaged.
• Paper or other foreign object has jammed pickup solenoid 1
• Lift sensor 1 defective
SC504 B
Lift sensor 2 error
After the lower paper cassette was closed, lift sensor 2 did not switch on within 20 s
after tray lift motor 2 switched on.
-or-
Lift sensor 2 did not switch off within 1 sec. after the tray started to descend.
5. Appendix: Service Call Conditions
44
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