Ricoh M281 Series Service Manual page 444

Service Call 101-195
SC No. Type
SC No. Type
SC101-02 D
D255/D256/M281/M282
Error Name/Error Condition/Major Cause/Solution
Check if the SC occurs by turning the main power OFF then ON.
If the SC occurs again, do the following steps. Check if the SC
reoccurs by cycling the power after each step.
1. Reconnect the connector.
Reconnect the following connectors;

Scanner Carriage – BiCU connector

BiCU – IOB connector
2. Check the white guide plate (exposure glass).
Check the white guide plate attached to the exposure glass.
If the white guide plate is in an unusual state, replace the
white guide plate.
3. Scanner carriage defective
Replace the scanner carriage.
4. BiCU defective
Replace the BiCU.
5. Harness defective
Replace the following harnesses.

Scanner Carriage – BiCU harness

BiCU – IOB harness
6. IOB defective
Replace the IOB.
Error Name/Error Condition/Major Cause/Solution
Lamp Error (Detecting the lighting error)
The white level peak did not reach the prescribed threshold
when the white guide plate was scanned.
Error detection timing; During the scanner adjustment (detecting
the lighting error) at the time of applying power source for
scanner (when the main power is turned ON).
6-6 SM