Ricoh G104 Service Manual page 350

Service Call Conditions
SC
Symptom
[Level]
Paper feed / Fusing motor error
LOCK signal is not
detected for more than
two seconds while the
531
motor START signal is
[D]
on.
LOCK signal is not
cancelled within two
seconds after the motor
is off.
Fan motor error
The fan motor "On" signal is
not detected for the
components below after the
drum motor for black is set to
532
"On".
[D]
PSU fan
Fusing unit fan
Polygon motor fan
Drive unit fan
Exit paper fan
Thermistor error
541
The thermistor output is less
[A]
than 0 °C for six seconds.
Print ready temperature error
542
The heating roller
[A]
temperature increase
G160/G161
CÓPIA NÃO CONTROLADA
Possible Cause/Required Action
Defective connection
Defective PCU
Defective High Voltage Power 2
1. Replace the High Voltage Power 2.
2. Reset the cables and components.
3. Replace the PCU.
Defective paper feed/ fusing motor
1. Replace the paper feed/ fusing motor.
Defective fan motor
1. If the error occurs again, one of the fans
is defective. Remove the covers, find
the defective fan and replace it.
Disconnected thermistor
Defective connector connection
Defective thermistor
Thermistor coming off
4-16
CÓPIA NÃO CONTROLADA
SM