Brother MFC-8860DN Servise Manual

Confidential
9-22
WARNING
If you analyze malfunctions with the power plug inserted into the power outlet, special caution should
be exercised even if the power switch is OFF because it is a single pole switch.
(3) Main motor failure
Possible cause
Step
Check
Result
Remedy
Failure of
connector
1 Is the connection of
connector CN6 on the main
PCB correct?
No Reconnect the connector.
Main motor 2 Is the problem solved by
replacing the main motor?
Yes Replace the main motor.
Main PCB 3 Is the problem solved by
replacing the main PCB?
Yes Replace the main PCB.
(4) No paper supplied
Possible cause
Step
Check
Result
Remedy
Separation pad
/ pickup roller
failure
1 Is the surface of the
separation pad or the
pickup roller dirty or worn
out?
Yes 1) Clean the surface of the
separation pad or pickup
roller.
2) Replace the separation pad
or pickup roller.
Failure of
connector
2 Is the contact of the
solenoid connector on the
relay front PCB good?
No Reconnect the connector.
HVPS circuit Yes Replace the HVPS.
Paper pickup
clutch
solenoid
3 Set the document into the
ADF, select MP tray in the
copy mode and press the
[Start] key.
Does the voltage between
pins 1(SOLENOID) and 2
(24V) of the CN1 TRAY1,
CN3 MP connector on the
relay front PCB change
from approx. 24V DC to
0V within the specified
time?
No Replace the paper pickup clutch
solenoid.
Main PCB 4 Is the problem solved by
replacing the main PCB?
Yes Replace the main PCB.

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