Checks / troubleshooting:
1. Check CR origin sensor in “Sen.1: CR
Origin” in the self-diagnosis function.
(Check if “ON” is displayed when Carriage is
locked and “OFF” is displayed when
Carriage is moved.)
2. CR origin sensor may be damaged.
3. Check the connection of MAIN board Assy .
4. MAIN board Assy may be damaged.

Recommended actions:
Check connection of CR origin sensor cable Assy
connector.