All codes
Service call
SC285
Line position adjustment error
CLaser / writeCommon field call
Level C — logged only
First check
Forced process control + registration, then check transfer belt and PCU seating.
What it means
Color registration / line position correction failed. Copies may show color shift or shear.
Likely causes
- PCU not seated
- Transfer belt skew
- Dirty ID / MUSIC pattern sensors
- Laser unit
On-site steps
Parts to have on the truck
- PCU
- Image transfer belt
- Pattern sensor
- LOSU
Related procedures
Related codes
Confirm the subcode and part number in the FSM for this serial. Raicoh is a field companion, not a replacement for the book.