Brother MFC-7365DN Service Manual

2-65
Confidential
■ Error code DD
Fuser unit failure except error code 6A, 6B, 6C, 6D, 6E, 6F, 76, 78, DE and E2.
■ Error code DE
When the center thermistor is higher than the idle temperature, it is detected that the side
thermistor temperature is lower than 60 °C.
Print Unable XX
See Troubleshooting and routine maintenance chapter in User's Guide.
<User Check>
• Turn OFF the power switch, and turn it ON again after a while.
Step Cause Remedy
1
Harness connection failure
between fuser unit connector and
paper eject sensor PCB ASSY
Check the harness connection between the
fuser unit connector and paper eject sensor
PCB ASSY, and reconnect it.
2
Harness connection failure
between fuser unit connector and
low voltage power supply PCB
ASSY
Check the harness connection between the
fuser unit connector and low voltage power
supply PCB ASSY, and reconnect it.
3
Harness connection failure
between paper eject sensor PCB
and main PCB
Check the harness connection between the
paper eject sensor PCB and main PCB,
and reconnect it.
4
Paper eject sensor PCB failure Replace the paper eject sensor PCB
ASSY.
5
Low voltage power supply PCB
failure
Replace the low voltage power supply PCB
ASSY.
6 Main PCB failure Replace the main PCB ASSY.
7 Fuser unit failure Replace the fuser unit.
Print Unable XX
Turn the power off and then back on again.
<User Check>
• Turn OFF and ON the power and check if the machine recovers.
Step Cause Remedy
1
Harness connection failure
between paper eject sensor PCB
ASSY and fuser unit
Check the harness connection between the
paper eject sensor PCB ASSY and fuser
unit, and reconnect it.
2
Side thermistor or center
thermistor failure
Replace the fuser unit.
3
Paper eject sensor PCB failure Replace the paper eject sensor PCB
ASSY.
4 Main PCB failure Replace the main PCB ASSY.

Brother MFC-7365DN Specifications

Printing Specifications

print technology	Electrophotographic Laser
print speed	Up to 24ppm
print resolution	Up to 1200 x 600 dpi

Copying Specifications

copy speed	Up to 24cpm
copy resolution	600 x 600 dpi
copy reduction/enlargement	25% - 400% in 1% increments

Scanning Specifications

scanner type	Color Flatbed with ADF
document glass size	8.5” x 11” (letter)
scan resolution	Optical: Up to 600 x 2400 dpi

Paper Handling

paper size maximum	Up to 8.5” x 14” (legal size)
paper input capacity maximum	250-sheet capacity paper tray, single-sheet manual feed slot
output capacity maximum	100 sheets (face down), 1 sheet (face up)

Weight and Dimensions

unit dimensions	15.9” W x 15.7” D x 12.4” H
unit weight	25.6 lbs.
carton weight	32.6 lbs.
carton dimensions	20.7” W x 20.1” D x 19.4” H