Confidential
2-26
â– Error Code 1700
Recording paper size error (duplex-printing/duplex-copying)
- Paper width is narrower than 95.5 mm (detection by paper width sensor)
- Paper length is longer than 245.9 mm (detection by registration sensor)
- Paper length is shorter than 143.5 mm (detection by registration sensor)
< User Check >
- Check whether the recording paper being used is within the specification.
- Check that dark recording paper is not used.
â– Error Code 1800
Paper jam during duplex-printing
Registration sensor does not detect paper feed within specified pulse numbers in the
second side paper re-feed.
< User Check >
- Remove the jammed paper.
- Check whether the recording paper being used is within the specification.
- Check that recording paper are not curled, wrinkled or wet.
Step Cause Solution
1 CR encoder strip stained Clean the CR encoder strip.
2 PF encoder disk stained Clean the PF encoder disk and flushing guide.
(refer to "Precautions for Troubleshooting and/
or Disassembly/Assembly")
3 Registration actuator caught
on the surrounding parts
Set the registration actuator into place.
4 Switchback actuator caught on
the surrounding parts
Set the switchback frame ASSY into place.
5 CR encoder strip defective Replace the CR encoder strip.
6 PF encoder disk defective Replace the PF encoder disk.
7 Registration sensor defective Replace the registration sensor PCB.
8 Paper width sensor defective Replace the carriage PCB ASSY.
9 Paper feed motor defective Replace the paper feed motor.
10 Main PCB defective Replace the main PCB.
Step Cause Solution
1 Foreign materials in the duplex
print paper path
Remove foreign materials.
2 Registration actuator caught
on the surrounding parts
Set the registration actuator into place.
3 Switchback actuator caught on
the surrounding parts
Set the switchback frame ASSY into place.
4 Registration sensor defective Replace the registration sensor PCB.
5 Switchback roller defective Replace the switchback roller.
6 Drive frame ASSY defective Replace the maintenance unit.
7 Main PCB defective Replace the main PCB.
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