Filter
Top Products
3-21
Confidential
■ Error code 76
Rapid temperature rising failure (center thermistor)
Error code 78
Rapid temperature falling failure (center thermistor)
■ Error code 7A
No detection of main motor synchronous signal
■ Error code 7D
Dirt on charged wire (detect discharge error)
Print Unable 76
Turn the power off and then back on again.
Print Unable 78
Turn the power off and then back on again.
Step Cause Remedy
1 Fuser unit failure Replace the fuser unit.
2 Main PCB failure Replace the main PCB ASSY.
Print Unable 7A
See Troubleshooting and routine maintenance chapter in User's
Guide.
Step Cause Remedy
1 Motor failure Replace the main motor.
2 Main PCB failure Replace the main PCB ASSY.
Drum Error
Open the Front Cover and slide the blue tab across the Drum Unit
several times.
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 of the main body and
the drum unit. (Refer to Fig. 3-2)
2 Charge HVPS PCB failure Replace the charge HVPS PCB ASSY.
3 Main PCB failure Replace the main PCB ASSY.