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Brother MFC-J491DW User Manual

Brother MFC-J491DW
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Home > Network > Additional Methods of Configuring Your Brother Machine for a Wireless
Network > Before Configuring Your Brother Machine for a Wireless Network
Before Configuring Your Brother Machine for a Wireless Network
Before attempting to configure a wireless network, confirm the following:
To achieve optimum results with normal everyday document printing, place the Brother machine as close to
the wireless LAN access point/router as possible with minimal obstructions. Large objects and walls between
the two devices and interference from other electronic devices can affect the data transfer speed of your
documents.
Due to these factors, wireless may not be the best method of connection for all types of documents and
applications. If you are printing large files, such as multi-page documents with mixed text and large graphics,
you may want to consider selecting wired Ethernet for faster data transfer (supported models only), or USB
for the fastest throughput speed.
Although the Brother machine can be used in both a wired and wireless network (supported models only),
only one connection method can be used at a time. However, a wireless network connection and Wi-Fi Direct
connection, or a wired network connection (supported models only) and Wi-Fi Direct connection can be used
at the same time.
If you do not know the security information (for example, Network Name (SSID) and Network Key), consult
the router manufacturer, your system administrator, or your Internet provider.
Related Information
Additional Methods of Configuring Your Brother Machine for a Wireless Network
337

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Brother MFC-J491DW Specifications

General IconGeneral
DisplayLCD
Product colorBlack
Built-in displayYes
Display diagonal1.77 \
Market positioningHome & office
Internal memory128 MB
Card reader integratedNo
Sound pressure level (copying)50 dB
Print technologyInkjet
Maximum resolution1200 x 6000 DPI
Duplex printing modeAuto
Print speed (ISO/IEC 24734) mono12 ipm
Print speed (ISO/IEC 24734) color6 ipm
Time to first page (black, normal)8 s
Duplex print speed (ISO/IEC 24734) mono3 ipm
Duplex print speed (ISO/IEC 24734) color1.7 ipm
Print speed (black, normal quality, A4/US Letter)27 ppm
Print speed (color, normal quality, A4/US Letter)10 ppm
Standard interfacesUSB 2.0, Wireless LAN
USB 2.0 ports quantity1
Copier resize25 - 400 %
Maximum copy resolution1200 x 600 DPI
Package depth249 mm
Package width447 mm
Package height457 mm
Package weight10100 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 certificatesNordic Swan Ecolabel, ENERGY STAR
FaxingMono faxing
Fax memory170 pages
Modem speed14.4 Kbit/s
Wi-Fi standards802.11b, 802.11g, Wi-Fi 4 (802.11n)
Security algorithms64-bit WEP, 128-bit WEP, WPA-PSK, WPA2-PSK
Mobile printing technologiesApple AirPrint, Mopria Print Service
Paper input typePaper tray
Total input capacity100 sheets
Total output capacity50 sheets
Auto document feeder (ADF) input capacity20 sheets
Paper tray media typesPlain paper
Borderless printing media sizesA4
Scan toE-mail, File, Image, OCR
Scanner typeFlatbed & ADF scanner
Input color depth30 bit
Output color depth24 bit
Maximum scan resolution19200 x 19200 DPI
Optical scanning resolution1200 x 2400 DPI
Digital sender-
Maximum duty cycle- pages per month
Harmonized System (HS) code84433100
Weight and Dimensions IconWeight and Dimensions
Depth341 mm
Width400 mm
Height172 mm

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