Brother MFC-8880DN Service Manual

3-41
Confidential
4. PAPER FEEDING PROBLEMS
Problems related to paper feeding are end user recoverable if following the User Check
items. If the same problem occurs again, follow each procedure in the order of the number
described in the Step column in the tables below.
4.1 No Feeding
4.2 Double Feeding
Step Cause Check Result Remedy
1
Dirt on PE sensor Is there paper powder in
the PE sensor?
Yes
Clean the PE sensnor.
2
Edge actuator
catching on some
position
Does the edge actuator
move smoothly? No
Re-assembly the edge
actuator.
3
Roller holder
ASSY catching on
some position
Does the roller holder
ASSY move smoothly? Yes
Re-assembly the roller
holder ASSY.
4
Separation pad or
roller holder ASSY
failure
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.
5
Pressure plate
gear damage
Is the pressure plate gear
damaged?
Yes
Replace the paper tray.
6
T1 solenoid failure Does the T1 solenoid
work correctly?
No
Replace the T1 solenoid.
7
T1 solenoid
pathway of the
high-voltage
power supply PCB
broken or
registration front
sensor failure
Is the problem solved
after replacing the high-
voltage power supply
PCB ASSY? Yes
Replace the high-voltage
power supply PCB ASSY.
8
Main PCB failure Is the problem solved
after replacing the main
PCB ASSY?
Yes
Replace the main PCB
ASSY.
9
Main motor failure Is the problem solved
after replacing the main
motor ASSY?
Yes
Replace the main motor
ASSY.
Step Cause Check
Result Remedy
1
Separation pad or
roller holder ASSY
failure
Is the surface of the
separation pad worn out? Yes
Replace the PF kit.

Brother MFC-8880DN Specifications

General

Print technology	Laser
Maximum resolution	1200 x 1200 DPI
Economical printing	Yes
Time to first page (black, normal)	8.5 s
Print speed (black, normal quality, A4/US Letter)	30 ppm
Scan to	E-mail, E-mail Server, File, FTP, Image, OCR, USB
Scanner type	Flatbed & ADF scanner
Grayscale levels	256
Input color depth	24 bit
Maximum scan resolution	19200 x 19200 DPI
Optical scanning resolution	600 x 2400 DPI
Copier resize	25 - 400 %
Maximum copy resolution	1200 x 600 DPI
Maximum number of copies	99 copies
N-in-1 copy function (N=)	2, 4, 9, 16
Time to first copy (black, normal)	10.5 s
Copy speed (black, normal quality, A4)	30 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
Internal memory	64 MB
Card reader integrated	No
Sound power level (standby)	30 dB
Sound pressure level (printing)	56 dB
Display	LCD
Market positioning	Business
Dimensions (WxDxH)	531 x 451 x 475 mm
All-in-one functions	Copy, Fax, Print, Scan
Maximum internal memory	0.576 GB
Color all-in-one functions	Scan
Maximum print size	216 x 356 mm
Paper tray media types	Plain paper, Recycled paper
ISO A-series sizes (A0...A9)	A4, A5, A6
ISO B-series sizes (B0...B9)	B5, B6
Maximum ISO A-series paper size	A4
Standard interfaces	Ethernet
USB 2.0 ports quantity	1
AC input frequency	50 - 60 Hz
Power consumption (standby)	85 W
Power consumption (PowerSave)	18 W
Power consumption (average operating)	680 W
Maximum duty cycle	- pages per month
Package weight	22100 g
Mac operating systems supported	Mac OS X 10.3 Panther, Mac OS X 10.4 Tiger, Mac OS X 10.5 Leopard, Mac OS X 10.6 Snow Leopard, Mac OS X 10.7 Lion
Server operating systems supported	Windows 2000 Advanced Server, Windows 2000 Server, Windows Server 2003, Windows Server 2003 x64, Windows Server 2008, Windows Server 2008 R2, Windows Server 2008 x64
Windows operating systems supported	Windows 2000, Windows 2000 Professional, Windows 7 Home Premium, Windows 7 Home Premium x64, Windows 7 Ultimate, Windows Vista Business, Windows Vista Business x64, Windows Vista Home Basic, Windows Vista Home Basic x64, Windows Vista Home Premium, Windows Vista Home Premium x64, Windows Vista Ultimate, Windows Vista Ultimate x64, Windows XP Home, Windows XP Home x64, Windows XP Professional, Windows XP Professional x64