SC No. Level Error Name/Error Condition/Major Cause/Solution
SC491-00 D High voltage power source: charge/development: output error
SC detection signal (charge/development) is L (abnormal) for 200 ms
consecutively during high voltage (charge/development) output.
H/W error
• Output contact setting fault
• Controller connector set fault
• Ground fault of output high voltage path
• Surface/air clearance insufficient (arc discharge)
• Controller harness disconnection, short-circuit
• PCU setting fault
• Control board _IOB error (related signal error)
• HVP_CB error
Load error
• Grounding fault of charging output, short-circuit with other outputs
• Surface/air clearance insufficient in charging output path (including
distance from other outputs)
• Abnormal deterioration of drum, and over current due to pinholes
• Drum vs charge roller gap error (PCU error).
• Over current due to drum surface condensation
• Grounding fault of developing output, short-circuit with other outputs
• Surface/air clearance insufficient in developing output path
(including distance from other outputs)
• Other
• Turn the main power OFF/ON.
• Reset or replace the harness of high voltage power supply feed path
• Reset or replace the harness between IOB-HVP_CB
• Reset or replace the PCU
• Check the operation of the contact mechanism
• Replace the HVP_CB
• Replace the Imaging IOB.
6. Troubleshooting
804
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