Checks / troubleshooting:
Is weight of media used within recommended
weight?
Is there paper jam around Grid roller?
Check error record in “Test : Record” in self-
diagnosis function.
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.
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
• PF encoder may be damaged.
PF motor may be damaged.
Power board may be damaged.
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 .