Ricoh D065 Service Manual page 450

Exposure lamp defective
Exposure lamp stabilizer defective
Harness between exposure lamp and lamp stabilizer is disconnected
Harness between lamp stabilizer – SIOB is disconnected
Harness between SBU - SIOB is disconnected
Harness between SIOB - BCU is disconnected
Harness between SBU – IPU is disconnected
Harness between IPU - BCU is disconnected
White plate is installed incorrectly or is dirty
Scanning mirrors of the exposure unit are dirty or out of position
SBU transmission error
After the SBU switches on, the BCU detects one of the following conditions
on the SBU:
D
1 s after power on, the SYDO signal does not go high, even after 1 retry.
1 s after power on, the SYDO signal goes high, but the SBU ID could not
be read after 3 attempts.
144
SBU defective
SIOB defective
BCU defective
-
Harness between the SBU - SIOB is disconnected
Harness between the SIOB - BCU is disconnected
Harness between the SIOB – PSU is disconnected
161 D IPU error
The error result of self-diagnostic by the ASIC on the BICU is detected.
Defective BICU
001 D
Defective connection between BICU and SBU
1. Check the connection between BICU and SBU.
2. Replace the BICU.
002 D The machine detects an error during an access to the Ri.
SM Appendix
Service Call Conditions
3-5 D062/D063/D065/D066