Brother DCP-8065DN

Confidential
9-5
Error Code
(Hex)
Symptom Probable Cause Solution
Halogen lamp defective Replace the halogen lamp. 6E Heater temperature does not
go up enough.
Power supply PCB
defective
Replace the power supply
PCB.
Thermistor defective Replace the thermistor. 6F Heater hard limiter operates.
Power supply PCB
defective
Replace the power supply
PCB.
70 Not used.
Laser unit defective Replace the laser unit. 71 Scanner motor does not
synchronize with the
reference clock.
Main PCB defective Replace the main PCB.
Laser unit defective Replace the laser unit. 72 Cannot detect Beam Detect
signal.
Main PCB defective Replace the main PCB.
73 The drum unit is not mounted.
(Not used.)
Toner sensor defective Replace the toner sensor. 74 Toner empty
Toner empty Replace the toner
cartridge.
75 In casing temperature error. In casing temperature
sensor defective
Replace the in casing
temperature sensor.
Thermistor in the fuser
unit defective
Replace the thermistor in
the fuser unit.
PS PCB unit defective Replace the PS PCB unit.
76 Heater overheats.
Main PCB defective Replace the main PCB.
77 The power supply is turned
off when the error 76 or 78
occurs.
--- ---
Poor connection in the
harness of the halogen
lamp
Reinsert and adjust the
harness.
Halogen lamp defective Replace halogen lamp.
Thermistor defective Replace the thermistor.
PS PCB unit defective Replace the PS PCB unit.
78 Temperature of the heater does
not rise.
Main PCB defective Replace the main PCB.
79 Thermistor in the machine
defective
Extremely high or low
temperature inside the
machine
Replace the termistor in
he machine.