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Brother MFC-8480DN Service Manual

Brother MFC-8480DN
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3-52
Confidential
Completely blank
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<User Check>
- Replace the drum unit with a new one.
- Replace the toner cartridge with a new one.
Step Cause Check
Result
Remedy
1
Developing bias
voltage
conduction
failure
Are the electrodes on
the drum unit and
machine body dirty?
Yes
Clean both electrodes.
(Refer to Fig. 3-2, Fig. 3-3.)
2
Scanner harness
of the laser unit
connection
failure
Is the scanner harness
of the laser unit
connected securely?
No
Reconnect the scanner
harness of the laser unit.
3
Laser unit failure Is the problem solved
after replacing the laser
unit?
Yes
Replace the laser unit.
4
HVPS PCB
failure
Is the problem solved
after replacing the
HVPS PCB ASSY?
Yes
Replace the HVPS PCB
ASSY.
5
Main PCB failure Is the problem solved
after replacing the main
PCB ASSY?
Yes
Replace the main PCB
ASSY.
Step Cause Check
Result
Remedy
1
Laser unit not
assembled
correctly
Is the laser unit
assembled into the
machine securely?
(Check if there is no
gap.)
No
Assemble the laser unit
correctly and secure the
screw.
2
Incorrect
radiation angle of
scanner diode of
laser unit.
Scanner motor
rotation failure
Is the problem solved
after replacing the laser
unit?
Yes
Replace the laser unit.
3
Main PCB failure Is the problem solved
after replacing the main
PCB ASSY?
Yes
Replace the main PCB
ASSY.

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Brother MFC-8480DN Specifications

General IconGeneral
Print technologyLaser
Maximum resolution1200 x 1200 DPI
Economical printingYes
Print speed (black, normal quality, A4/US Letter)32 ppm
Grayscale levels256
Input color depth48 bit
Image formats supportedBMP, JPG, TIF
Maximum scan resolution19200 x 19200 DPI
Optical scanning resolution600 x 2400 DPI
Copier resize25 - 400 %
Maximum number of copies99 copies
Copy speed (black, normal quality, A4)32 cpm
FaxingMono faxing
Fax memory600 pages
Modem speed33.6 Kbit/s
Power supply typeAC
Weight (imperial)40.3 lbs
Dimensions (WxDxH)530.8 x 449.5 x 474.9 mm
Power requirements110 - 240V, 50/60 Hz
All-in-one functionsCopy, Fax, Scan
Standard media sizes2.75'' - 8.5\
Maximum internal memory0.576 GB
Color all-in-one functionsscan, n
Compatible operating systemsWindows OS Mac OS
Package dimensions (W x D x H)24.7 x 22.3 x 22.6 \
Total input capacity250 sheets
Total output capacity150 sheets
Auto document feeder (ADF) input capacity50 sheets
DisplayLCD
Market positioningBusiness
Internal memory64 MB
Sound pressure level (copying)56 dB
Sound pressure level (printing)30 dB
Maximum print size216 x 356 mm
Paper tray media typesBond paper, Envelopes, Plain paper, Recycled paper, Transparencies
Non-ISO print media sizesExecutive
ISO A-series sizes (A0...A9)A4, A5, A6
ISO B-series sizes (B0...B9)B5, B6
Maximum ISO A-series paper sizeA4
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 interfacesUSB 2.0
USB 2.0 ports quantity1
Power consumption (standby)18 W
Power consumption (average operating)680 W
Package weight21645 g
Sustainability certificatesENERGY STAR
Maximum duty cycle30000 pages per month
Recommended duty cycle3500 pages per month
Operating temperature (T-T)10 - 32.2 °C
Operating relative humidity (H-H)20 - 80 %

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