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Brother MFC-J491DW User Manual

Brother MFC-J491DW
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Home > Routine Maintenance > Clean Your Brother Machine > Clean the Print Head from Your Computer
(Mac)
Clean the Print Head from Your Computer (Mac)
To maintain good print quality, the machine automatically cleans the print head when needed. If there is a print
quality problem, start the cleaning process manually.
1. Select System Preferences from the Apple menu.
2. Select Printers & Scanners, and then select the machine.
3. Click the Options & Supplies button.
4. Click the Utility tab, and then click the Open Printer Utility button.
The Status Monitor screen appears.
5. Click the Control menu, and then select Maintenance.
6. Select one of the following options:
Option Description
Check Print Quality... Use to print the test page and check the print quality.
Print Head Cleaning... Use to start the cleaning process manually. Select if a line or blank spaces
appear in text or graphics on the test page.
7. Do one of the following:
If you selected the Check Print Quality... option, click Start.
The machine prints the test page.
If you selected the Print Head Cleaning... option, select Black only, Color only, or All option for the
cleaning type, and then click Next.
8. Select the Normal, Strong, or Strongest option for the cleaning strength, and then click Next.
9. Click Start.
The machine starts cleaning.
Related Information
Clean Your Brother Machine
Paper Handling and Printing Problems
Clean the Print Head from Your Brother Machine
517

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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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