Ricoh Kr-P2, Руководство по обслуживанию на месте

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Code No. Symptom Possible Cause
300 B
Charge roller current leak
• Cartridge (charge roller) defective
• High voltage supply board defective
60% or more of the PWM duty output is
detected for 0.2 seconds when the charge
bias is generated by the charge roller.
330 B
Development bias leak
• Cartridge (development roller)
defective
• High voltage supply board defective
60% or more of the PWM duty output is
detected for 0.2 seconds when the
development bias is generated by the
development roller.
520 B
Main motor lock
• Main motor defective
• Harness broken
• Too much load on the drive
mechanism
A main motor lock signal is not detected for
more than 700 ms after the main motor
starts to rotate, or the lock signal is not
detected for more than a certain time during
rotation after the last signal.
530 B
Fusing fan error
• Poor connection of the fusing fan
• Fusing fan defective
The CPU detects the fusing fan lock signal
for more than 3 seconds.
531 B
PSU fan error
• Poor connection of the PSU fan
• PSU fan defective
The CPU detects the PSU fan lock signal for
more than 3 seconds.
541 A
Thermistor error
• Thermistor defective
The fusing temperature detected by the
thermistor is 0
°
C for 7 seconds after the
fusing relay has been turned on.
542 A
Fusing temperature warm-up error
• Thermistor defective or deformed
• Fusing lamp open
• Fusing thermostat open
The fusing temperature does not increase
by 7
°
C for 10 seconds.
The fusing temperature does not reach more
than 135
°
C for 24 seconds after the main
switch is turned on.
Service Call Conditions
13
2