Konica Minolta bizhub 20 Service Manual page 108

■ Error code B1
Scanner Error
Dark level offset data level error for scanning
* This error is indicated on the LCD in the maintenance mode.
Error code B2
Scanner Error
Gain control data level error for scanning
* This error is indicated on the LCD in the maintenance mode.
Error code B7
Scanner Error
A/D converter standard voltage failure; at High side
* This error is indicated on the LCD in the maintenance mode.
Error code B8
Scanner Error
A/D converter standard voltage failure; at Low side
* This error is indicated on the LCD in the maintenance mode.
Step
1 CCD unit failure
2 Main PCB failure
Cause
3-33
Remedy
Replace the CCD module.
Replace the main PCB ASSY.
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