Brother MFC-7365DN Service Manual

2-89
Confidential
■ Black band
■ Downward fogging of solid black
■ Horizontal lines
User Check
• Clean the inside of the machine and the corona wire in the drum
unit. If the same problem occurs after cleaning, replace the drum
unit with a new one.
• The paper tray ground terminal provided in the machine body may
be dirty. Clean the contact with a dry cloth.
Step Cause Remedy
1
Bend of tray ground spring (1)
Correct bending of the tray ground spring .
(2) Replace the paper tray.
User Check
• Replace the toner cartridge with a new one.
Step Cause Remedy
1
High voltage power supply PCB
ASSY failure
Replace the high voltage power supply
PCB ASSY.
2 Main PCB failure Replace the main PCB ASSY.
User Check
• The paper tray ground terminal provided in the machine
body may be dirty. Clean the contact with a dry cloth.
• Replace the drum unit with a new one.
• Replace the toner cartridge with a new one.
Step Cause Remedy
1
Dirt on the electrodes of the drum
unit and the machine body
Clean the electrodes of the drum unit and
machine body. (Refer to Fig. 2-11, Fig. 2-
12.)
2
Bend of tray ground spring (1)
Correct bending of the tray ground spring .
(2) Replace the paper tray.
3 Laser unit failure Replace the laser unit.
4
Scratch and Dirt on the heat roller
(horizontal stripes at 53.4 mm)
Replace the fuser unit.

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