Brother MFC-8480DN Service Manual

Confidential
CHAPTER 5 DISASSEMBLY/REASSEMBLY
This chapter details procedures for disassembling and reassembling the machine together
with related notes. The disassembly order flow provided enables you to see at a glance the
quickest way to get to component(s) involved.
At the start of a disassembly job, you check the disassembly order flow that guides you
through a shortcut to the object components.
This chapter also covers screw tightening torques and lubrication points to which the
specified lubricants should be applied during reassembly jobs.
CONTENTS
1. SAFETY PRECAUTIONS .............................................................................................5-1
2. TRANSFERRING RECEIVED FAX DATA ....................................................................5-2
3. PACKING ......................................................................................................................5-4
4. SCREW TORQUE LIST ................................................................................................ 5-6
5. LUBRICATION ............................................................................................................5-10
6. GEAR LAYOUT DRAWING ........................................................................................ 5-13
7. HARNESS ROUTING..................................................................................................5-16
8. DISASSEMBLY FLOW CHART .................................................................................. 5-41
9. DISASSEMBLY PROCEDURE ................................................................................... 5-43
9.1 Paper Tray ......................................................................................................... 5-44
9.2 Back Cover ........................................................................................................ 5-47
9.3 Rear Chute ASSY .............................................................................................. 5-49
9.4 Fuser Unit ..........................................................................................................5-51
9.5 Tray MP ASSY ................................................................................................... 5-55
9.6 MP Tray Cover ASSY / Process Cover ASSY / Emblem cover .........................5-56
9.7 Access Cover / Side Cover L ............................................................................. 5-60
9.8 ADF Unit ............................................................................................................ 5-61
■ CCD model
9.8.1 ADF Unit......................................................................................................5-61
9.8.2 Hinge Arm R................................................................................................ 5-63
9.8.3 Hinge Base R ..............................................................................................5-63
9.8.4 Hinge ASSY L ............................................................................................. 5-64
9.8.5 ADF Cover ASSY ........................................................................................5-64
9.8.6 ADF Side Cover F .......................................................................................5-65
9.8.7 ADF Side Cover R.......................................................................................5-65
9.8.8 ADF Chute ASSY ........................................................................................5-66
9.8.9 Sub Chute ASSY (For the models with the DX only) /
SX Chute (For the models without the DX only)..........................................5-68
9.8.10 Exit Chute Cover ASSY............................................................................... 5-68
9.8.11 Earth Spring................................................................................................. 5-69

Brother MFC-8480DN Specifications

General

Print technology	Laser
Maximum resolution	1200 x 1200 DPI
Economical printing	Yes
Print speed (black, normal quality, A4/US Letter)	32 ppm
Grayscale levels	256
Input color depth	48 bit
Image formats supported	BMP, JPG, TIF
Maximum scan resolution	19200 x 19200 DPI
Optical scanning resolution	600 x 2400 DPI
Copier resize	25 - 400 %
Maximum number of copies	99 copies
Copy speed (black, normal quality, A4)	32 cpm
Faxing	Mono faxing
Fax memory	600 pages
Modem speed	33.6 Kbit/s
Power supply type	AC
Weight (imperial)	40.3 lbs
Dimensions (WxDxH)	530.8 x 449.5 x 474.9 mm
Power requirements	110 - 240V, 50/60 Hz
All-in-one functions	Copy, Fax, Scan
Standard media sizes	2.75'' - 8.5\
Maximum internal memory	0.576 GB
Color all-in-one functions	scan, n
Compatible operating systems	Windows OS Mac OS
Package dimensions (W x D x H)	24.7 x 22.3 x 22.6 \
Total input capacity	250 sheets
Total output capacity	150 sheets
Auto document feeder (ADF) input capacity	50 sheets
Display	LCD
Market positioning	Business
Internal memory	64 MB
Sound pressure level (copying)	56 dB
Sound pressure level (printing)	30 dB
Maximum print size	216 x 356 mm
Paper tray media types	Bond paper, Envelopes, Plain paper, Recycled paper, Transparencies
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
Supported network protocols (IPv4)	ARP, RARP, BOOTP, DHCP, APIPA, LLMNR, LPR/LPD, IPP/IPPS, FTP, HTTP/HTTPS, SSL/TLS, TFTP, SMTP, APOP, POP, SMTP, SMTP-AUTH, SNMPv1/v2c/v3, ICMP, LLTD, CIFS, SNTP, NDP, RA, DNS, mDNS, ICMPv6
Standard interfaces	USB 2.0
USB 2.0 ports quantity	1
Power consumption (standby)	18 W
Power consumption (average operating)	680 W
Package weight	21645 g
Sustainability certificates	ENERGY STAR
Maximum duty cycle	30000 pages per month
Recommended duty cycle	3500 pages per month
Operating temperature (T-T)	10 - 32.2 °C
Operating relative humidity (H-H)	20 - 80 %