Checks / troubleshooting:
1. Check if there is paper jam around Grid
Roller or any foreign substances around
range of CR movement.
2. Check error record in “Test: Record” in
self-diagnosis function.

Recommended actions:
• After removing any foreign
substances and checking if printer
itself is not damaged, check if same
error still occurs.
• Check if T fence is placed between
CR encoders. If not, reassemble CR
encoder correctly. If T fence is
damaged, Replace.
• Clean and lubricate CR rail roller
guide.
• Check connection of following
connectors.
MAIN board :
• CR motor connector
• CR_FFC connector
CR board :
• CR_FFC connector
• Check connection to CR motor is
appropriate.
• Check if tensions of CR speed
reduction belt and Steel belt are
appropriate.
Replace following parts:
• T fence
• CR encoder
• CR_FFC
• CR motor
• CR board
• MAIN board