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â– Error Code 8700
Paper jam. Switchback sensor stays in paper feeding state even after completion of
paper ejection action.
< User Check >
- Remove the jammed paper in front part.
- The paper tray is not set correctly.
â– Error Code 8800
Paper jam. Switchback sensor cannot detect paper feeding state even papers are
fed during printing.
< User Check >
- Remove the jammed paper in platen part and front part.
Step Cause Solution
1 Foreign materials in the
feeding path
Remove foreign materials.
2 Switchback actuator caught on
the surrounding parts
Set the switchback frame ASSY into place.
3 Switchback outer paper guide
not mounted in place
Set the switchback outer paper guide into place.
4 Paper feed roller and
Switchback roller stained
Clean the related rollers.
5 Paper feed roller and
switchback roller defective
Replace related rollers.
6 PF encoder sensor defective Replace the PF encoder sensor PCB.
7 Maintenance unit defective Replace the maintenance unit.
8 Main PCB defective Replace the main PCB.
Step Cause Solution
1 Foreign materials in the
feeding path
Remove foreign materials.
2 Switchback actuator caught on
the surrounding parts
Set the switchback frame ASSY into place.
3 Switchback sensor harness
connection failure
Reconnect the switchback sensor harness.
4 Paper feed roller and paper
ejection roller stained
Clean the related rollers.
5 Paper feed roller and paper
ejection roller defective
Replace related rollers.
6 PF encoder sensor defective Replace the PF encoder sensor PCB.
7 Maintenance unit defective Replace the maintenance unit.
8 Main PCB defective Replace the main PCB.
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