Ricoh PRO C7210

1.SC Codes
31
Service Call 300-398
SC300 (Engine: Charge, Development)
SC No.
Level
Error Name/Error Condition/Major Cause/Solution
SC300-
01
D
Combined High-Voltage Power Supply Board (Charge) Output Error (K) (1st)
SC300-
02
D
Combined High-Voltage Power Supply Board (Charge) Output Error (C) (2st)
SC300-
03
D
Combined High-Voltage Power Supply Board (Charge) Output Error (M) (3st)
SC300-
04
D
Combined High-Voltage Power Supply Board (Charge) Output Error (Y) (4st)
SC300-
05
D
Combined High-Voltage Power Supply Board (Charge) Output Error (S) (5st)
SC300-
06
D
Charge Roller Power Pack Output Error (K) (5st)
SC300-
07
D
Charge Roller Power Pack Output Error (S) (1st)
The interrupt that checks the status of the PCU power pack every 10 ms detected
SC signals 15 times consecutively.
Details:
In case of an overcurrent, the Charge Roller Power Pack outputs SC signals. The
machine monitors it, and issues an SC when an error occurs.
 High voltage harness shorted.
 Leakage around the charge roller caused by a conductive object.
 Leak of the charged bias caused by the drum exposure layer error (Exposure
layer disappearance, drum surface is damaged).
 Charge Bias Power Pack defective
1. Check the charge roller.
Remove the conductive object and clean the charge roller.
2. Check the harness of charge bias power pack.
Replace the harness if it is shorted.
3. Check the drum.
Replace the drum if exposure layer is damaged (the aluminum bare pipe part
appears).
4. Replace the charge bias power pack.