Ricoh AP-C3, Field Service Manual, Page: 789 / 1334

No. Type Details (Symptom, Possible Cause, Troubleshooting Procedures)
187 D
CIS black level error
The black level scanned by CIS is abnormal.
0 < Calibrated Black data level < 255 (10bit).
• Defective CIS
1. Check or replace the harness (CN220 or CN210 on the DF main board)
between the CIS and DF.
2. Replace the CIS on the DF.
No. Type Details (Symptom, Possible Cause, Troubleshooting Procedures)
188 D
CIS white level error
The shading data peak detected from the CIS is abnormal.
• Defective CIS
1. Check or replace the harness (CN220 or CN210 on the DF main board)
between the CIS and DF.
2. Replace the CIS on the DF.
No. Type Details (Symptom, Possible Cause, Troubleshooting Procedures)
189 D
CIS gray balance adjustment error
The adjustment error occurs during the test after adjusting the gray balance.
• Defective CIS
1. Retry the gray balance adjustment.
2. If the machine does not recover, do the following steps.
• Turn off the machine.
• Make sure CN210 and CN220 are connected firmly.
• Turn on the machine.
3. If the machine does not recover, replace the CIS.
Service Call
787