Brother MFC-8220 Service Manual

CHAPTER 6 TROUBLESHOOTING
6-36
I-5 Dirt on the back of paper
Possible cause Step Check Result Remedy
Fixing unit dirty 1 Is the pressure roller dirty?
Is any other area in the
machine dirty?
Yes
Clean the pressure roller
referring to the following
procedure.
Dirt in the drum
unit
2 Is the transfer roller dirty?
Is the problem solved after
replacing the drum unit?
Yes Replace the drum unit
No Replace the high-voltage power
supply PCB.
NOTE:
This problem may disappear after printing approximately 5 pages of completely blank sheets.
How to clean the pressure roller
Clean the pressure roller as follows.
(1) Set ten or more sheets of paper in the paper tray.
(2) Check the absence of paper in the ADF and the paper tray.
(3) Press Copy button to copy and repeat it five times.
(4) Check whether any stain are observed on the back of paper or not.

Brother MFC-8220 Specifications

General

Type	all in one
Tray Capacity	250
Automatic Document Feeder Capacity	30 sheets
Paper Size	letter, legal, a4, b5, a5, b6, a6, exe
Paper Handling	up to 250 sheets
Mono Print Speed	21 pages per minute
Print Resolution Mono	up to 2400 x 600
Maximum Number of Pages Per Month	up to 20, 000
Scanner Type	sheetfed
Scan Resolution	up to 300 x 600
Copier Resolution Mono	up to 600
Fax Function	yes
Cartridges	n/a
Number Of Cartridges	2
Internal Memory	yes
Network	not applicable
Connectivity	parallel, usb 2.0
OS Compatibility	pc: windows 95, 98, 98se, me, nt workstation 4.0, 2000 professional or xp, mac: os 8.6 to 9.2, os x 10.1, 10.2.1 to 10.3 or later, available usb 2.0 or parallel port
Mobile Devices Connection	no

Weight and Dimensions

Height	13.2 inches
Width	17 inches
Net Weight	25.6 pounds