Ricoh Aficio 1515 Service Manual page 91

9 March 2004
No.
Definition
545 A Fusing lamp overheat error
After the fusing temperature reaches
the target, the fusing lamp remains on
for 12 seconds.
546 A Unstable fusing temperature
While the fusing lamp is on, the fusing
temperature varies 50°C or more within
one second; and this occurs two
consecutive times.
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.
590 B Exhaust fan motor error
The exhaust fan motor is locked for five
seconds.
630 D CSS communication error
An error occurs while the copier is
trying to communicate with the CSS.
632 C Accounting error 1
An error occurs during communication
with the MF accounting device.
633 C Accounting error 2
After the controller establishes
communication with the MF accounting
device, the MF accounting device
sends a brake signal.
634 C Accounting RAM error
An error occurs in the backup RAM for
the MF accounting device.
635 B Accounting battery error
An error occurs in the battery of the MF
accounting device.
670 B Engine start error
The controller does not receive all or
some of the BICU signals within 70
seconds during startup; or the controller
detects the BICU stopping
unexpectedly.
760 B ADF gate error 1
The ADF sends the FGATE signal
before it is requested to scan originals.
761 B ADF gate abnormal 2
The ADF does not send the FGATE
signal within 30 seconds after the ADF
starts scanning.
Symptom
4-5
SERVICE CALL CONDITIONS
Possible Cause
• Defective thermistor
• Incorrect installation of the thermistor
• Defective power supply unit
• Defective thermistor
• Incorrect installation of the thermistor
• Defective power supply unit
• Defective power supply unit
• Defective BICU
• Loose connection of the exhaust fan
motor
• Overload
• Communication error in the public line
• Defective accounting device
• Loose connection
• Defective accounting device
• Loose connection
• Defective accounting device
• Defective accounting device
• Defective BICU
• Defective controller
• Loose connection
• Defective ADF board
• Defective input/output board
• Loose connection
• Defective ADF connector
• Defective SBU board