Brother MFC-J491DW User Manual

Home > Routine Maintenance > Check Your Brother Machine > Check the Print Quality
Check the Print Quality
If faded or streaked colors and text appear or if text is missing on your printouts, the print head nozzles may be
clogged. Print the Print Quality Check Sheet and look at the nozzle check pattern.
>> MFC-J491DW/MFC-J497DW
>> MFC-J690DW/MFC-J895DW
MFC-J491DW/MFC-J497DW
1. Press Settings.
2. Press a or b to select the following:
a. Select [General Setup]. Press OK.
b. Select [Maintenance]. Press OK.
c. Select [Impr. PrintQuality]. Press OK.
d. Select [Impr. PrintQuality] again. Press OK.
3. Press c.
The machine prints the Print Quality Check Sheet.
4. Check the quality of the four color blocks on the sheet.
5. The LCD asks about the print quality. Do one of the following:
• If all lines are clear and visible, press d to select [No].
The Print Quality check finishes.
• If lines are missing (see Poor, below), press c to select [Yes].
OK
Poor
6. The LCD asks you to check the print quality of each color. Press d or c to select the pattern (1–4) that most
closely matches the printing result, and then press OK.
7. Do one of the following:
• If print head cleaning is needed, press c to start the cleaning procedure.
• If print head cleaning is not needed, the Ink or Maintenance screen reappears on the LCD.
8. After the cleaning procedure is finished, the LCD asks if you want to check the print quality again.
Press c [Yes] to start the print quality check.
9. Press c again.
The machine prints the Print Quality Check Sheet again. Check the quality of the four color blocks on the
sheet again.
If you clean the print head and the print has not improved, try installing a new Genuine Brother Brand
replacement ink cartridge for each problem color. Try cleaning the print head again. If the print has not improved,
contact Brother Customer Service.
IMPORTANT
DO NOT touch the print head. Touching the print head may cause permanent damage and may void the print
head's warranty.
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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