Checks / troubleshooting:
1. Is weight of media used within
recommended weight?
2. Is there paper jam around Grid roller?
3. Check error record in “Test : Record” in self-
diagnosis function.
4. Set endurance time to more than 50 times in
“Life: PF Motor” in self-diagnosis function to
see if any errors related to PF motor such as
“PF motor error” occurs.
5. Check “Encoder: PF” in “Check: Test” –
“Test5: Encoder” in self-diagnosis function.
• Turn PF connecting axle by hand and see
if value displayed on panel changes as
follows.
• Front feed direction: Increase
• Back feed direction: Decrease
6. PF encoder may be damaged.
7. PF motor may be damaged.
8. Power board may be damaged.
9. MAIN board may be damaged.

Recommended actions:
• Explain user about recommended media
weight.
• Remove paper jam, check if Media holder
and Print head are damaged, and check if
same error occurs.
Check connection of following connectors of
MAIN board .
• PF motor cable connector
• PF_ENC connector
• Connector that is connecting PF motor and PF
motor relay
• Replace PF encoder.
• Replace PF motor.
• Replace Power board.
• Replace MAIN board.