Ricoh SH-P1 M020 Field Service Manual page 253

AIO Fan Motor error
534 D
The CPU detects an AIO fan lock
signal for more than 2 seconds.
Fusing thermistor error
The fusing temperature remains lower
541 A
o
than 0 C for over 7 seconds after the
power relay switches on.
Fusing temperature warm-up error
1: Thermistor detects that the rate of
heat increase is less than 7 degrees
per 2 seconds consecutively 5 times.
2: The fusing temperature did not
542 A
reach the standby temperature within
24 seconds at the center of the hot
roller after the main switch turned on.
This SC will appear when condition 1
and 2 occur at the same time.
• Mechanical overload on the AIO fan
mechanism
• AIO fan harness loose or broken
• Remove foreign materials from the AIO
fan.
• Turn the Power Switch Off and On.
• Connect the harnesses properly.
• Replace the AIO fan.
• Thermistor disconnected
• Defective thermistor
• Fusing unit connected improperly
• Connect the fusing unit properly.
• Connect the thermistor.
• Replace the thermistor.
• This SC cannot be reset by turning the
power off and on.
• This SP should be reset by a CE.
• SP5810-01 can reset this SC.
• Defective thermistor
• Thermistor improper installation
• Defective fusing lamp
• Install the thermistor properly.
• Replace the thermistor.
• Replace the fusing lamp.
• This SC cannot be reset by turning the
power off and on.
• This SP should be reset by a CE.
• SP5810-01 can reset this SC.
Service Call Conditions
6
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