Brother MFC-8480DN Service Manual

3-61
Confidential
■ Ghost
■ Fogging
<User Check>
- Check the machine's environment, conditions such as high or low
humidity may cause this situation to occur.
- Check that the appropriate media type or size is selected in the
printer driver.
- Replace the drum unit with a new one.
Step Cause Check
Result Remedy
1
HVPS PCB
failure
Is the problem solved
after replacing the
HVPS PCB ASSY?
Yes
Replace the HVPS PCB
ASSY.
2
Main PCB failure Is the problem solved
after replacing the main
PCB ASSY?
Yes
Replace the main PCB
ASSY.
<User Check>
- Replace the toner cartridge with a new one.
- Replace the drum unit with a new one.
- Do not use acid paper.
- Check if there is dust or paper powder in the machine.
Step Cause Check
Result Remedy
1
Toner sensor
failure (Machine
body)
Is the toner sensor
performed normally by
following the procedure
in "4.10 Sensor
Operational Check
(Function code 32)" in
Chapter 7.
No
Replace the toner sensor
PCB unit ASSY and the
toner LED PCB ASSY.
2
HVPS PCB
failure
Is the problem solved
after replacing the
HVPS PCB ASSY?
Yes
Replace the HVPS PCB
ASSY.
3
Main PCB failure Is the problem solved
after replacing the main
PCB ASSY?
Yes
Replace the main PCB
ASSY.
CAUTION :
• This problem often occurs when the drum unit or toner cartridge is nearly at the end
of life.

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 %