Checks / troubleshooting:
1. Check if there is paper jam around Grid
Roller or any foreign substances around the
range of CR movement.
2. Check the error record in “Test 7: Record” in
the self-diagnosis function.
3. Move Carriage from side to side while the
printer is turned off and see if there is
anywhere Carriage does not move smoothly.
4. Set the endurance time to more than 50
times in “Life1: CR Motor” in the self-
diagnosis function to see if any errors related
to PF motor such as “CR motor error” occurs.
5. Check if T fence is dirty or twisted.

Recommended actions:
• After removing any foreign substances and
checking if the printer itself is not damaged,
check if the 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 it.
• Clean and lubricate CR rail roller guide.
• Check the connection of the following
connectors.
MAIN board Assy:
• CR motor Assy connector
• CR_FFC connector
CR board Assy:
• CR_FFC connector
• Check the connection to CR motor is
appropriate.
• Check if the tensions of CR speed reduction belt
and Steel belt are appropriate.
Replace the following parts:
• T fence
• CR encoder
• CR_FFC
• CR motor Assy
• CR board Assy
• MAIN board Assy