Ricoh D131 Service Manual page 476

CIS BK level error
The BK level scanned by CIS is abnormal.
The BK level average of R, G or B is/are not from 2 to 62.
SC187 D 0 < Calibrated BK data level < 255(10bit).

Turn off the machine.

Make sure CN210 and CN220 are connected firmly.

Turn on the machine.
CIS white level error
D The shading data peak detected from the CIS is abnormal.
SC188

CIS defective

Make sure CN210 and CN220 are connected firmly.
-

Replace the CIS.
CIS gray balance adjustment error
The adjustment error occurs during the test after adjusting the gray
balance.

Retry the gray balance adjustment.
SC189 D

If the machine does not recover, do the following steps.
1. Turn off the machine.
2. Make sure CN210 and CN220 are connected firmly.
3. Turn on the machine.

If the machine does not recover, replace the CIS.
Machine serial number error
SC195 D
The number registered for the machine serial number does not match.
Confirm the correct serial number of the machine in the specifications.
- Important: When SC195 occurs, the serial number must be input.
Contact your technical supervisor.
SM Appendix 2-9
SC100: Scanning
D131/D132/D133