Brother MFC-J491DW User Manual

Cause Action Interface
Check your network devices using the ping command. For more
information on how to confirm your network settings, see Related
Information:Check Network Devices Using the Ping Command.
The failed print job is still
in your computer's print
queue.
• If the failed print job is still in your computer's print queue, delete it.
• Otherwise, double-click the printer icon in the following folder and
cancel all documents:
- Windows
®
7
Click (Start) > Devices and Printers > Printers and
Faxes.
- Windows
®
8
Move your mouse to the lower right corner of your desktop.
When the menu bar appears, click Settings > Control Panel.
In the Hardware and Sound group, click View devices and
printers > Printers.
- Windows
®
10 and Windows Server
®
2016
Click > Windows System > Control Panel. In the
Hardware and Sound group, click View devices and printers
> Printers.
- Windows Server
®
2008
Click Start > Control Panel > Printers.
-
Windows Server
®
2012
Move your mouse to the lower right corner of your desktop.
When the menu bar appears, click Settings > Control Panel.
In the Hardware group, click View devices and printers >
Printers.
-
Windows Server
®
2012 R2
Click Control Panel on the Start screen. In the Hardware
group, click View devices and printers.
- macOS v10.10.5, v10.11.x, v10.12
Click System Preferences > Printers & Scanners.
Wired/Wireless
Your Brother machine is
not connected to the
wireless network.
Print the WLAN Report to check the error code on the printed report. Wireless
If you have checked and tried all of the above, but your Brother machine still cannot print and scan, uninstall the
Brother software and drivers and reinstall them.
Related Information
• Network Problems
• Print the WLAN Report
• Use the Network Connection Repair Tool (Windows
®
)
• Wireless LAN Report Error Codes
• Check Network Devices Using the Ping Command
• I Want to Check that My Network Devices are Working Correctly
497

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