Checks / troubleshooting:
Check if is 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
• Check if DC42V is correctly supplied
from Power board , using tester.
PF encoder may be damaged.
Check if PF encoder scale is installed facing
correct direction.
Check if PF encoder scale is dirty or misted
over.
Check if tension of PF belt is appropriate.
PF encoder may be damaged.
MAIN board may be damaged.

Recommended actions:
Remove paper jam.
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
If Main power board is damaged, Replace.