Brother MFC-8860DN Service Manual

Confidential
9-33
(I-5) Dirt on the back of paper
Possible cause
Step
Check
Result
Remedy
Fuser 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.
Yes Replace the drum unit Dirt in the
drum unit
2 Is the transfer roller dirty?
Is the problem solved after
replacing the drum unit?
No Replace the high-voltage power
supply PCB.
NOTE: This problem may disappear after printing approximately 10 pages of completely blank
sheets.
How to clean the pressure roller
Clean the pressure roller as follows;
(1) Set 5 or more sheets of paper in the paper tray.
(2) Press the [Menu], [Start], [▲], [▲], [▲], [▲] keys in this order so that the machine goes into
the maintenance mode.
(3) Press the [6] and [7] keys. The machine starts to print the grid pattern continuously.
(4) When five pages are printed, press the [Stop/Exit] key. The machine returns to the initial stage
of the maintenance mode.
(5) Press the [9] key twice so that the machine returns to the ready status.

Brother MFC-8860DN Specifications

General

Duplex printing	Yes
Print technology	Laser
Maximum resolution	1200 x 1200 DPI
Time to first page (black, normal)	8.5 s
Print speed (black, normal quality, A4/US Letter)	28 ppm
Scan to	e-mail, file, image, OCR
Grayscale levels	256
Input color depth	48 bit
Copier resize	25 - 400 %
Maximum copy resolution	1200 x 600 DPI
Maximum number of copies	99 copies
Copy speed (black, normal quality, A4)	28 cpm
Faxing	Mono faxing
Fax memory	500 pages
Modem speed	33.6 Kbit/s
Fax speed dialing (max numbers)	300
Total input capacity	250 sheets
Total output capacity	150 sheets
Auto document feeder (ADF) input capacity	50 sheets
Maximum internal memory	544 MB
Sound power level (standby)	30 dB
Sound pressure level (printing)	55 dB
Display	LCD
Market positioning	Business
Paper tray media types	Envelopes, Plain paper, Recycled paper
Non-ISO print media sizes	Executive
ISO A-series sizes (A0...A9)	A4, A5, A6
ISO B-series sizes (B0...B9)	B5, B6
Maximum ISO A-series paper size	A4
Font styles	66 Scaleable fonts, Letter, Gothic 16.66, OCR-A, OCR-B, 11 Barcodes
Dimensions (WxDxH)	531 x 450 x 475 mm
Networking features	10/100 Base-TX
All-in-one functions	Copy, Fax, Scan
Color all-in-one functions	scan, n
Compatible operating systems	Windows98(SE)/Me/2000/XP/NT4.0WS Mac OS 9.1-9.2/ OS X 10.2.4 +
Standard interfaces	USB 2.0
Power consumption (standby)	85 W
Power consumption (PowerSave)	15 W
Power consumption (average operating)	1104 W
Sustainability certificates	ENERGY STAR