Brother DCP-8065DN

Confidential
9-6
<The solution when Error Code 76, 77, 78 shown in the machine>
The heater may be overheating when these kinds of error occur. Therefore, the heater is
programmed to turn off the power for 10 minutes after the switch is on for the safety concern when
the error occurs.
To help the heater work properly, it’s necessary to follow the operating procedures as below after
taking measures against the cause of the error.
1. Turn off the switch. Wait until the temperature of the heater lowers enough.
2. Turn on the switch.
3. Either display the maintenance mode then returns to the initial original maintenance mode, or
keep the power on for 10 minutes under inspection.
Error Code
(Hex)
Symptom Probable Cause Solution
Main PCB defective Replace the main PCB. 7A Main motor does not
synchronize with the reference
clock.
Main motor defective Replace the main motor.
7B ASIC error on the main PCB.
(Not used.)
7C Not used.
7D Dust on the drum. Corona wire is dirty. Cleaning the corona wire.
7E, 7F Not used.
Paper smaller than the
specified size loaded in
the paper tray
Load the correct size of
paper.
80 At the start of FAX message
printing, the controller detects
that paper is smaller than A4
size in width.
Main PCB defective Replace the main PCB.
81 Recording paper jam.
(Not used.)
82 Recording paper jam in paper
pull-in operation. (Not used.)
Paper is not correctly
set in the paper tray
Reload paper.
Separation pad
damaged
Replace the paper tray.
Registration sensor
actuator unhooked
Set the registration sensor
actuator into place.
83 Recording paper jam.
(The registration sensor comes
ON too early in the paper
feeding operation.)
Main PCB defective Replace the main PCB.