Konica Minolta bizhub 20 Service Manual page 95

■ Error code 70
Print Unable 70
Turn the power off and then back on again.
Fuser motor error
Step
1 Motor failure
2 Main PCB failure
■ Error code 71
Print Unable 71
Turn the power off and then back on again.
Laser unit polygon motor failure
Error code 72
Print Unable 72
Turn the power off and then back on again.
Laser beam emission failure
Step
1 Laser unit failure
2 Main PCB failure
■ Error code 75
Cooling Down
Wait for a while
Sensor of the inside temperature for detection detected higher than normal temperature
<User Check>
• Lower the inside temperature.
Step
1 Thermistor ASSY failure
2 Main PCB failure
Cause
Cause
Cause
3-20
Remedy
Replace the main motor.
Replace the main PCB ASSY.
Remedy
Replace the laser unit.
Replace the main PCB ASSY.
Remedy
Replace the laser scanner unit.
Replace the main PCB ASSY.
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