Gestetner G060 Service Manual page 509

SC No. Item
SC 544 Heating roller
fusing lamp low
temperature
error
SC 545 Heating roller
fusing lamp
consecutive full
power
SC 546 Heating roller
fusing lamp
temperature
fluctuation
SC 551 Pressure roller
thermistor error
SC 552 Pressure roller
warm-up error
SM
Definition
• Loose connection
During stand-by mode or a
print job, the detected
heating roller temperature
stays at 50 °C or less for five
• Defective heating
seconds.
• Defective PSU
• Defective BCU
• Heating roller
When the fusing unit is not
running in the Ready
condition, the heating roller
fusing lamp keeps on with
full power for 30 consecutive
seconds.
• Loose connection of
The heating roller
temperature changes by
±20°C or more in one
• Loose connection
second. This occurs three
times in one minute or two
consecutive times.
• Loose connection of
The measured pressure
roller temperature does not
reach 7°C for 30 seconds.
• Defective pressure
• Defective BCU
• Pressure roller fusing
After the main switch is
turned on or the door is
• Defective pressure
closed, the pressure roller
temperature does not reach
• Defective BCU
the ready temperature within
150 seconds during fusing
unit warm-up.
Related
Possible Cause
SCs
between the fusing
unit and the main
frame
roller thermistor
thermistor out of
position
the thermistor
between the fusing
unit and main frame
pressure roller
thermistor
roller thermistor
lamp broken
roller thermistor
4-27
Troubleshooting Procedure
1. Check the connection between the
fusing unit and main frame.
2. Replace the fusing unit.
3. Replace the PSU.
4. Replace the BCU.
1. Replace the fusing unit.
1. Check if the fusing unit is properly set
and connected to the main frame.
2. Check if the heating roller thermistor
connector is firmly connected.
3. Replace the fusing unit.
1. Check that the pressure roller
thermistor is firmly connected.
2. Replace the fusing unit.
3. Replace the BCU.
1. Check if the pressure roller thermistor
is firmly connected.
2. Replace the fusing unit.
3. Replace the BCU.
SC TABLE
Type
A
A
A
A
A
G570