Service Call 441-498
D146/D147/D148/D149/D150 5-38 SM
SC No. Level Error Name/Error Condition/Major Cause/Solution
SC492-00 C High voltage power source: image transfer/paper transfer:
output error
SC detection signal (transfer) is L (abnormal) for 200 ms
consecutively during high voltage (transfer) output.
H/W error
§ Output power connector setting fault
§ Controller connector setting fault
§ Output high voltage Harness disconnection
§ Controller harness disconnection, short-circuit
§ Transfer unit setting fault
§ Control board_ IOB error (related signal error)
§ HVP_TTS error
Load error
§ Increase in paper transfer roller impedance (low
temperature environment/impedance rise/impedance rise
due to dirt)
§ Operation fault of paper transfer contact mechanism
§ Increase in image transfer belt impedance
§ Opening in load power supply path
§ Reset or replacement the harness of high voltage power
supply feed path
§ Reset or replace the harness between IOB-HVP_TTS
§ Reset or replace the transfer unit
§ Check operation of the contact mechanism
§ Replace the HVP_TTS
§ Replace the IOB
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