Ricoh D025 Service Manual page 566

Troubleshooting Guide
Test pattern check
Others
After Executing SP2-111-001
Result: "0" in SP2-194-007
Result: No color registration errors in SP2-194-010, -011, -012
Test pattern check
The main scan registration of K is
shifted.
The main scan length of K is
shifted.
After Executing SP2-111-001
Result: "0" in SP2-194-007
Result: Color registration errors in SP2-194-010, -011, -012
D023/D025
Possible cause/Countermeasure
Skew correction upper limit error
Defective BICU
Defective laser optics housing unit
1. Replace the BICU.
2. Replace the laser optics housing unit.
Possible cause/Countermeasure
Abnormal SP setting value of main scan: K
Adjust the value with SP2-101-001.
Abnormal SP setting value of main scan length
detection: K
Adjust the value with SP2-185-001.
5-8 SM Appendix