All codes
Service call
SC124
Scanner motor encoder error
BScanner / optics
Level B — stop, power-cycle may clear
First check
Motor spinning without encoder counts — encoder disc dirty, or motor assembly.
What it means
Encoder pulses from the scanner motor were missing or out of spec.
Likely causes
- Dirty encoder
- Scanner motor encoder failed
- Harness
- Driver IC
On-site steps
Parts to have on the truck
- Scanner motor (with encoder)
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.