Ricoh K-C3 Service Manual page 130

B245/B276/B277/B268/B269 Service Manual
No.
Definition
502 C
503 C
504 C
506 C
541 A
542 A
Symptom
after the last signal.
Tray 2 lift motor malfunction (Optional paper tray units)
The paper lift sensor fails
to activate twice
continuously after the tray
lift motor has been on for
18 seconds.
Tray 3 lift motor malfunction (optional paper tray units)
The paper lift sensor fails
to activate twice
continuously after the tray
lift motor has been on for
18 seconds.
Tray 4 lift motor malfunction (optional two-tray paper tray unit)
The paper lift sensor fails
to activate twice
continuously after the tray
lift motor has been on for
18 seconds.
Paper feed motor lock (optional paper tray units)
A motor lock signal is not
detected for more than 1.5
s or the lock signal is not
detected for more than 1.0
s during rotation.
Fusing thermistor open (center)
The fusing temperature
detected by the thermistor
is below 71C and is not
corrected after the main
power switch is turned on.
Fusing temperature warm-up error (center)
The fusing temperature
Possible Cause
Paper lift sensor defective
Tray lift motor defective
Too much load on the drive
mechanism
Poor tray lift motor connection
Paper lift sensor defective
Tray lift motor defective
Too much load on the drive
mechanism
Poor tray lift motor connection
Paper lift sensor defective
Tray lift motor defective
Too much load on the drive
mechanism
Poor tray lift motor connection
Paper feed motor defective
Too much load on the drive
mechanism
Fusing thermistor defective or out of
position
Power supply board defective
Loose connectors
Fusing thermistor defective or out of
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