Duplex Unit
Duplex cover open
Description: Duplex unit cover is open.
Probable Cause: The signal from the duplex cover sensor did not change.
Location: Duplex unit, duplex cover switch, control board
Service Center Procedure:
1. Check the duplex unit cover.
2. Replace duplex unit if another unit is available.
3. Check Status Monitor to see if a cover open alert has been triggered.
4. Deliver duplex unit.
Replacement Procedure:
1. Replace duplex cover switch.
2. Replace duplex unit.
Duplex unit defective
Description: Duplex unit is not installed properly.
Probable Cause: Duplex unit locks defective, duplex unit defective, or the signal from the duplex unit sensor
did not change.
Location: One or more of the following:
• Duplex unit
• Rear interlock switch
• HVPS pack
• Control board
Service Center Procedure:
1. Reinstall duplex unit.
2. Replace duplex unit if another unit is available.
3. Deliver duplex unit.
Replacement Procedure:
1. Replace duplex unit.
2. Interlock switch.
3. Replace HVPS.
Printer Display Errors
31
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