Brother MFC-8520DN Basic User's Guide

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Print Unable XX
(XX = Error Code)
The machine has a mechanical
problem.
Do one of the following:
 Turn the power switch off, wait a few
minutes, and then turn it on again.
(See Transferring your faxes or Fax Journal
report uu page 94.)
 If the problem continues, call Brother
customer service for support.
Protected Device The protect switch of the USB
Flash memory drive is on.
Turn off the protect switch of the USB Flash
memory drive.
Rename the File There is already a file on the
USB Flash memory drive with
the same name as the file you
are trying to save.
Change the file name of the file on the USB
Flash memory drive or the file you are trying to
save.
Replace Parts
Drum
It is time to replace the drum
unit.
Replace the drum unit.
(See Replacing the drum unit uu page 71.)
The drum unit counter was not
reset when a new drum was
installed.
Reset the drum unit counter.
(See Replacing the drum unit uu page 71.)
Replace Parts
Fuser Unit
It is time to replace the fuser
unit.
Call Brother customer service or a Brother
Authorized Service Center to replace the fuser
unit.
Replace Parts
Laser Unit
It is time to replace the laser
unit.
Call Brother customer service or a Brother
Authorized Service Center to replace the laser
unit.
Replace Parts
PF Kit 1
PF Kit 2
PF Kit MP
It is time to replace the paper
feeding kit.
Call Brother customer service or a Brother
Authorized Service Center to replace the PF
Kit.
Replace Toner The toner cartridge is at the
end of its life. The machine will
stop all print operations.
While memory is available,
faxes will be stored in the
memory.
Replace the toner cartridge.
(See Replacing the toner cartridge
uu page 64.)
Scan Unable XX
(XX = Error Code)
The machine has a mechanical
problem.
 Turn the power switch off, and then turn it
on again.
(See Transferring your faxes or Fax Journal
report uu page 94.)
 If the problem continues, call Brother
customer service for support.
Document is too long for
duplex scanning.
Press Stop/Exit. Use the suitable size of paper
for duplex scanning.
(See
Print media uu page
156.)
Error Message Cause Action

Brother MFC-8520DN Specifications

General

Print technology	Laser
Maximum resolution	1200 x 1200 DPI
Economical printing	Yes
Duplex printing mode	Auto
Time to first page (black, normal)	8.5 s
Print speed (black, normal quality, A4/US Letter)	36 ppm
Duplex print speed (black, normal quality, A4/US Letter)	9 ppm
PictBridge	No
Scan speed	2.68 sec/page
Dimensions (WxDxH)	405 x 415 x 423 mm
All-in-one functions	Copy, Fax, Print, Scan
Color all-in-one functions	Scan
Printing colors	Black
Maximum duty cycle	- pages per month
Recommended duty cycle	500 - 3500 pages per month
Number of print cartridges	1
Page description languages	BR-Script 3, Epson FX, IBM ProPrinter, PCL 6
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, 25
Time to first copy (black, normal)	10.5 s
Copy speed (black, normal quality, A4)	36 cpm
Scan to	E-mail, E-mail Server, File, FTP, Image, OCR, USB
Scan drivers	ICA, ISIS, TWAIN
Scanner type	Flatbed & ADF scanner
Grayscale levels	256
Input color depth	48 bit
Maximum scan area	Legal (216 x 356) mm
Output color depth	24 bit
Image formats supported	BMP, JPG
Maximum scan resolution	19200 x 19200 DPI
Document formats supported	PDF
Faxing	Mono faxing
Fax memory	500 pages
Modem speed	33.6 Kbit/s
Fax coding methods	JBIG, JPEG, MH, MMR (Fax coding method), MR
Fax speed dialing (max numbers)	300
Paper input type	Paper tray
Total input capacity	250 sheets
Total output capacity	150 sheets
Maximum input capacity	850 sheets
Maximum number of input trays	2
Multi-Purpose tray input capacity	50 sheets
Auto document feeder (ADF) input capacity	35 sheets
Custom media width	76.2 - 215.9 mm
Maximum print size	216 x 356 mm
Custom media length	127 - 355.6 mm
Paper tray media types	Bond paper, Plain paper, Pre-Printed, Recycled paper, Thin paper
Paper tray media weight	60 - 105 g/m²
Non-ISO print media sizes	Legal
ISO A-series sizes (A0...A9)	A4, A5, A6
ISO B-series sizes (B0...B9)	B5, B6
Multi-purpose tray media types	Bond paper, Envelopes, Heavyweight paper, Labels, Plain paper, Recycled paper
Maximum ISO A-series paper size	A4
Multi-Purpose Tray media weight	60 - 163 g/m²
Auto Document Feeder (ADF) media weight	64 - 90 g/m²
Display	LCD
Market positioning	Home & office
Display number of lines	5 lines
Display number of characters	22
Standard interfaces	Ethernet, USB 2.0
Security algorithms	802.1x RADIUS, EAP, EAP-TLS, EAP-TTLS, MD5, PEAP
Processor family	Star Sapphire
Maximum internal memory	384 MB
Sound power level (standby)	37 dB
Sound pressure level (printing)	59 dB
Sound pressure level (quiet mode)	54 dB
AC input voltage	220 - 240 V
AC input frequency	50 - 60 Hz
Power consumption (off)	1.2 W
Power consumption (standby)	8.1 W
Power consumption (PowerSave)	336 W
Power consumption (average operating)	651 W
Package weight	20.100 g
Sustainability certificates	ENERGY STAR