No.
Definition
Symptom Possible Cause
While the fusing lamp is on, the fusing
temperature varies 50°C or more within
one second; and this occurs two
consecutive times.
• Defective thermistor
• Incorrect installation of the thermistor
• Defective power supply unit
547 B
Zero cross signal malfunction
The zero cross signal is not detected within
five seconds after the main power switch
is turned on. Or, the zero cross signal is
not detected within one second after
operation begins.
• Defective power supply unit
• Defective BICU
559 A
Consecutive fusing jam
The paper jam counter for the fusing unit
reaches 3 times. The paper jam counter is
cleared if the paper is fed correctly.
This SC is activated only when
SP1159-001 is set to "1" (default "0").
• Paper jam in the fusing unit.
590 B
Exhaust fan motor error
The exhaust fan motor is locked for five
seconds.
• Loose connection of the exhaust fan
motor
• Overload
760 B
ADF gate error 1
The ADF sends the FGATE signal before it
is requested to scan originals.
• Defective ADF board
• Defective input/output board
• Loose connection
761 B
ADF gate abnormal 2
The ADF does not send the FGATE signal
within 30 seconds after the ADF starts
scanning.
• Defective ADF connector
• Defective SBU board
762 B
ADF gate abnormal 3
Service Call Conditions
113
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