Ricoh D027 Service Manual page 4

No. Type Details (Symptom, Possible Cause, Troubleshooting Procedures)
White level detection error
The white level cannot be adjusted within the target during auto gain
control.
Dirty exposure glass or optics section
SBU board defective
Exposure lamp defective
Lamp stabilizer defective
142 D
Scanner motor defective
1. Clean the exposure glass, white plate, mirrors, and lens.
2. Check if the exposure lamp is lit during initialization.
3. Check the harness connection between SBU and BICU.
4. Replace the exposure lamp.
5. Replace the scanner motor.
6. Replace the SBU board.
No. Type Details (Symptom, Possible Cause, Troubleshooting Procedures)
SBU communication error
The SBU connection cannot be detected at power on or recovery from
the energy save mode.
Defective SBU
144 D
Defective harness
Defective detection port on the BICU
1. Replace the harness.
2. Replace the SBU.
3. Replace the BICU.
No. Type Details (Symptom, Possible Cause, Troubleshooting Procedures)
161 IPU error
SM 3-7
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SC Tables
D027/D029 APPENDICES