Ricoh Gestetner 5450, Service Manual, Page: 143 / 315

SERVICE CALL CODES 1 July, 1998
4-6
4.3 SERVICE CALL CODES
Code Title Conditions Possible Causes
SC02-00 Scanner motor
lock (the HP
sensor remains
off)
After the scanner has left home
position, it does not return there
for more than 7 seconds.
•
Defective scanner HP
sensor
•
Scanner wire slip-off
•
Defective scanner
motor
SC02-01 Scanner motor
lock (the HP
sensor remains
on)
At power on or when the Start
key is pressed, the scanner does
not move from the home position
towards the scanning direction for
more than 2 seconds.
•
Defective scanner HP
sensor
•
Scanner wire slip-off
•
Defective scanner
motor
SC02-02 Scanner motor
lock (the scanner
does not return to
HP)
At power on, the scanner does
not return to the home position
within 2 seconds after it left.
•
Defective scanner HP
sensor
•
Scanner wire slip-off
•
Defective scanner
motor
SC03-00 Thermal head ID
error
The CPU detects an abnormal ID
signal from the thermal head.
•
Defective thermal head
•
Defective MPU
SC03-01 Thermal head
energy pulse
error
The CPU detects an abnormal
thermal head energy control
pulse.
•
Defective MPU
•
Defective PSU
SC03-02 Thermal head
thermistor short
The signal from the thermal head
thermistor reaches 4.88 volts.
•
Thermistor open circuit
•
Related connector
disconnected
SC03-03 Thermal head
temperature
abnormal
When the Start key is pressed, a
temperature of 54
°
C or more is
detected at the thermal head.
•
Thermistor short
•
Defective thermal head
SC04-00 Cutter HP sensor
remains on
The cutter does not leave the
home for more than 3 seconds
after the cutter motor on signal is
generated.
•
Defective sensor
•
Defective motor
•
Jammed master
SC04-01 Cutter HP sensor
remains off
The cutter does not return to the
home for more than 3 seconds
after the cutter has left home
•
Defective sensor
•
Defective motor
•
Jammed master
SC04-10 Platen release
sensor remains
on
The sensor is not de-activated for
more than 5 seconds after the
platen release motor on signal is
generated.
•
Defective sensor
•
Defective motor
SC04-11 Platen release
sensor remains
off
The sensor is not activated for
more than 5 seconds after the
platen release motor on signal is
generated.
•
Defective sensor
•
Defective motor