Brother DCP-1510 Service Manual page 41

Error code 0501
Print Unable 05
Turn the power off and then back on again.
The center thermistor of the fuser unit has not reached the specified temperature within the
specified time.
Error code 0502
Print Unable 05
Turn the power off and then back on again.
The center thermistor has not reached the specified temperature within the specified time
after the fuser unit has reached to a certain temperature.
Error code 0503
Print Unable 05
Turn the power off and then back on again.
The center thermistor of the fuser unit detected a temperature higher than the specified value.
Error code 0504
Print Unable 05
Turn the power off and then back on again.
After the heat unit was heated normally, the center thermistor of the fuser unit detected a
temperature lower than the specified value.
Error code 0505
Print Unable 05
Turn the power off and then back on again.
The center thermistor of the fuser unit detected a temperature rise greater than the specified
value within the specified time.
Error code 0506
Print Unable 05
Turn the power off and then back on again.
The center thermistor of the fuser unit detected a temperature fall greater than the specified
value within the specified time.
<User Check>
• Turn OFF the power switch. After several seconds, turn ON the power again and check
that this error has reset.
Step
Connection failure of the center
1 thermistor harness of the fuser
unit
Connection failure of the heater
2
harness of the fuser unit
Connection failure of the low
3
voltage PCB harness
4 Fuser unit failure
5 Low voltage power supply PCB failure Replace the low voltage power supply PCB unit.
6 Main PCB failure
Cause
Reconnect the center thermistor harness of the
fuser unit.
Reconnect the heater harness of the fuser unit.
Reconnect the low voltage PCB harness.
Replace the fuser unit.
Replace the main PCB ASSY.
1-24
Remedy
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