Brother MFC-L2700D Service Manual

2-73
Confidential
 White vertical streaks
 White horizontal streaks
 Faint print
<User Check>
- Clean the corona wire of the drum unit.
- Check that there is no dust on the toner cartridge.
- Refer to the User's Guide to remove the dirt from the exposure drum
using a cotton applicator.
- Replace the drum unit with a new one.
- Replace the toner cartridge with a new one.
Step Cause Remedy
1
Dirt on the charge electrodes Clean the electrodes of the drum unit and
those of the machine. (Refer to Fig. 2-8 and
Fig. 2-9.)
2
Laser unit failure Replace the laser unit.
<User Check>
- This problem may disappear after printing multiple sheets of paper.
- Replace the drum unit with a new one.
- Replace the toner cartridge with a new one.
Step Cause Remedy
1
Dirt on the charge electrodes Clean the electrodes of the drum unit and
those of the machine. (Refer to Fig. 2-8 and
Fig. 2-9.)
2
Scratch or dirt on the fuser unit Replace the fuser unit.
3
High-voltage power supply PCB
failure
Replace the high-voltage power supply PCB
ASSY.
<User Check>
- Check that the machine is positioned on a level surface.
- Replace the drum unit with a new one.
- Replace the toner cartridge with a new one.
Step Cause Remedy
1
Laser unit failure Replace the laser unit.
2
Fuser unit failure Replace the fuser unit.
3
Main PCB failure Replace the main PCB ASSY.

Brother MFC-L2700D Specifications

General

Print Technology	Laser
Print Resolution	Up to 2400 x 600 dpi
Duplex Printing	Yes
Paper Input Capacity	250 sheets
Monthly Duty Cycle	Up to 10, 000 pages
Functions	Print, Copy, Scan, Fax
ADF Capacity	35 sheets
Memory	32 MB
Fax Speed	33.6 Kbps
Print Speed	Up to 27 ppm
Connectivity	USB 2.0
Scanner Type	Flatbed
Copy Speed	Up to 27 cpm
Scan Resolution	Up to 600 x 2400 dpi
Display	2-line LCD