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Error code 76
Print Unable 76
Turn the power off and then back on again.
Fuser unit failure (The center thermistor detects rapid temperature rising.)
Step Cause
Remedy
1 Fuser unit failure Replace the fuser unit.
Error code 78
Print Unable 78
Turn the power off and then back on again.
Fuser unit failure (The center thermistor detects rapid temperature falling.)
Step Cause
Remedy
1 Harness connection failure
between fuser unit connector
and engine PCB
Check the harness connection between the fuser
unit connector and engine PCB, and reconnect it.
2 Fuser unit failure Replace the fuser unit.
Error code 7D
Drum Error
Slide the Green tab on Drum Unit in each color. Refer to the User’s
Guide for the procedures.
Dirt on drum unit
User Check
- Clean the corona wire in the drum unit.
- Replace the drum unit with a new one.
Step Cause
Remedy
1 Dirt or dust on drum unit
electrodes
Clean the electrodes on the drum unit.
(Refer to Fig. 1-2.)
2 Charge HVPS PCB failure Replace the charge HVPS PCB ASSY.
3 Engine PCB failure Replace the engine PCB ASSY.
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