Ricoh M281 Series Service Manual page 443

6.2 SERVICE CALL 101-195
6.2.1 SC100 (ENGINE: SCANNING) (MP 501/601 ONLY)
SC No. Type
SC101-01 D
SM
Error Name/Error Condition/Major Cause/Solution
Lamp Error (Scanning)
The white level peak did not reach the prescribed threshold
when the white guide plate was scanned.
Error detection timing;

During a scan from the exposure glass:
When the scanning of white guide plate is completed. (when
the SHGH is negated)

During a scan from ARDF:
During the shading operation.
When the scanning of white guide plate is completed. (when
the SHGH is negated)

Condensation in scanner unit

Connector disconnected

Scanner Carriage defective

BiCU defective

Harness defective

White Guide Plate dirty or defective

IOB defective
6-5
Service Call 101-195
D255/D256/M281/M282