Ricoh G104 - Page 351

Service Call Conditions
SM 4-17 G160/G161
G160/G161
SC
[Level]
Symptom Possible Cause/Required Action
that is less than 67
degrees for 9 seconds is
detected five times
consecutively.
 The fusing temperature
does not reach the print
ready temperature within
15 seconds after the
fusing lamp was
controlled.
 Incorrect power supply input at the main
power socket
 Defective fusing lamp
High temperature detection: Software
543
[A]
The thermistor detects
230°C for 0.2 seconds.
 Defective thermistor
 Defective I/O board
 Defective EGB
High temperature detection: Hard
544
[A]
The thermistor detects
250°C.
 Defective thermistor
 Defective I/O board
 Defective EGB
 Defective fusing unit, PSU, or EGB
1. Replace the fusing unit.
2. Replace the PSU.
Heating lamp error
545
[A]
The fusing lamp is
full-powered for 8 seconds
after the heating roller
reaches the print ready
temperature.
 Deformed thermistor
 Thermistor coming off
 Defective fusing lamp
Zero cross error
547
[D]
 The zero cross signal is
detected three times
even though the heater
relay is off when turning
on the main power.
 Defective fusing lamp relay
 Defective fusing lamp relay circuit
 Unstable power supply
1. Check the power supply source.
2. Replace the PSU.
CÓPIA NÃO CONTROLADA
CÓPIA NÃO CONTROLADA