Ricoh MPC 2800 AT-C2 Mode D'emploi page 489

Test pattern check
The sub scan lines are shifted. Shifted
lines appear cyclically.
Possible cause/Countermeasure
2. Replace the laser optics housing unit.
3. Replace the IOB.
• Defective PCU
• Defective drive unit
• Drum phase adjustment error
1. Do SP1-902-001 (Drum phase adjustment); see
Replacement and Adjustment – Drive Unit – Gear Unit for
details.
2. Reinstall or replace the PCU.
3. Check or replace the drive unit.
Troubleshooting Guide
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