Ricoh D027 Service Manual page 12

No. Type Details (Symptom, Possible Cause, Troubleshooting Procedures)
241 C LD error: Y
242 C LD error: M
243 C LD error: C
The BICU detects LDB error a few times consecutively when LDB unit
turns on after LDB initialization.
Worn-out LD
- -
Disconnected or broken harness of the LD
1. Replace the harness of the LD.
2. Replace the laser optics housing unit.
3. Replace the BICU.
No. Type Details (Symptom, Possible Cause, Troubleshooting Procedures)
Line position adjustment (MUSIC) error
Line position adjustment fails four consecutive times.
Pattern sampling error ( insufficient image density )
Defective ID sensors for the line position adjustment
Defective image transfer belt unit
Defective PCU(s)
285 D
Defective laser optics housing unit
1. Check and reinstall the image transfer belt unit and PCUs.
2. Check if each toner bottle has enough toner.
3. Replace the ID sensor.
4. Replace the image transfer belt unit.
5. Replace the PCU(s).
6. Replace the laser optics housing unit.
SM 3-15
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SC Tables
D027/D029 APPENDICES