Brother MFC-J491DW Manual

If the product has been dropped or the casing has been damaged, there may be the
possibility of an electrical shock. Unplug the product from the AC power outlet and contact
Brother Authorized Service Personnel.
DO NOT use this product during a thunderstorm. There may be a remote risk of an electrical
shock from lightning.
FIRE HAZARDS
Failure to follow the warnings in this section may create the risk of a fire.
DO NOT use flammable substances, any type of spray, or an organic solvent/liquid containing
alcohol or ammonia to clean the inside or outside of the product. Doing so could cause a fire.
Instead, use only a dry, lint-free cloth. For instructions on how to clean the product, see the
Online User's Guide.
(Models with Wireless LAN function only)
DO NOT use the product near any medical electrical equipment. The radio waves emitted
from the product may affect medical electrical equipment and cause a malfunction, which may
result in accident or injury.
For users with pacemakers:
This product generates a weak magnetic field. If you feel anything wrong with the operation of
your pacemaker when near the product, move away from the product and consult a doctor
immediately.
DO NOT place metal objects, such as clips, staples, or jewelry on the product. If these objects
contact the electrical parts inside the product, it may cause a fire or electrical shock.
DO NOT place a container holding water or liquid on the product. The water or liquid in the
container may spill into the product making contact with the electrical parts inside the product,
which may cause a fire or electrical shock.
7

Brother MFC-J491DW Specifications

General

Display	LCD
Product color	Black
Built-in display	Yes
Display diagonal	1.77 \
Market positioning	Home & office
Internal memory	128 MB
Card reader integrated	No
Sound pressure level (copying)	50 dB
Print technology	Inkjet
Maximum resolution	1200 x 6000 DPI
Duplex printing mode	Auto
Print speed (ISO/IEC 24734) mono	12 ipm
Print speed (ISO/IEC 24734) color	6 ipm
Time to first page (black, normal)	8 s
Duplex print speed (ISO/IEC 24734) mono	3 ipm
Duplex print speed (ISO/IEC 24734) color	1.7 ipm
Print speed (black, normal quality, A4/US Letter)	27 ppm
Print speed (color, normal quality, A4/US Letter)	10 ppm
Standard interfaces	USB 2.0, Wireless LAN
USB 2.0 ports quantity	1
Copier resize	25 - 400 %
Maximum copy resolution	1200 x 600 DPI
Package depth	249 mm
Package width	447 mm
Package height	457 mm
Package weight	10100 g
Power consumption (off)	0.2 W
Power consumption (sleep)	1 W
Power consumption (standby)	3.5 W
Power consumption (printing)	16 W
Power consumption (average operating)	- W
Sustainability certificates	Nordic Swan Ecolabel, ENERGY STAR
Faxing	Mono faxing
Fax memory	170 pages
Modem speed	14.4 Kbit/s
Wi-Fi standards	802.11b, 802.11g, Wi-Fi 4 (802.11n)
Security algorithms	64-bit WEP, 128-bit WEP, WPA-PSK, WPA2-PSK
Mobile printing technologies	Apple AirPrint, Mopria Print Service
Paper input type	Paper tray
Total input capacity	100 sheets
Total output capacity	50 sheets
Auto document feeder (ADF) input capacity	20 sheets
Paper tray media types	Plain paper
Borderless printing media sizes	A4
Scan to	E-mail, File, Image, OCR
Scanner type	Flatbed & ADF scanner
Input color depth	30 bit
Output color depth	24 bit
Maximum scan resolution	19200 x 19200 DPI
Optical scanning resolution	1200 x 2400 DPI
Digital sender	-
Maximum duty cycle	- pages per month
Harmonized System (HS) code	84433100

Weight and Dimensions

Depth	341 mm
Width	400 mm
Height	172 mm