Brother HL-L8350CDW User Manual page 204

Troubleshooting
Examples of poor print quality
ABCDEFGHIJKLMNOPQRSTUVWXYZ. 0123456789. abcdefghijklmnopqrstuvwxyz.
ABCDEFGHIJKLMNOPQRSTUVWXYZ. 0123456789. abcdefghijklmnopqrstuvwxyz.
ABCDEFGHIJKLMNOPQRSTUVWXYZ. 0123456789. abcdefghijklmnopqrstuvwxyz.
ABCDEFGHIJKLMNOPQRSTUVWXYZ. 0123456789. abcdefghijklmnopqrstuvwxyz.
Uneven density appears
periodically across the page
W X Y Z
A
B
C
D
E
Missing image at thin line
ABCDEFGHIJKLMNOPQRSTUVWXYZ. 0123456789. abcdefghijklmnopqrstuvwxyz.
ABCDEFGHIJKLMNOPQRSTUVWXYZ. 0123456789. abcdefghijklmnopqrstuvwxyz.
ABCDEFGHIJKLMNOPQRSTUVWXYZ. 0123456789. abcdefghijklmnopqrstuvwxyz.
ABCDEFGHIJKLMNOPQRSTUVWXYZ. 0123456789. abcdefghijklmnopqrstuvwxyz.
Wrinkled
ABCDEFGHIJKLMNOPQRSTUVWXYZ. 0123456789. abcdefghijklmnopqrstuvwxyz.
ABCDEFGHIJKLMNOPQRSTUVWXYZ. 0123456789. abcdefghijklmnopqrstuvwxyz.
ABCDEFGHIJKLMNOPQRSTUVWXYZ. 0123456789. abcdefghijklmnopqrstuvwxyz.
ABCDEFGHIJKLMNOPQRSTUVWXYZ. 0123456789. abcdefghijklmnopqrstuvwxyz.
ABCDEFGHIJKLMNOPQRSTUVWXYZ. 0123456789. abcdefghijklmnopqrstuvwxyz.
ABCDEFGHIJKLMNOPQRSTUVWXYZ. 0123456789. abcdefghijklmnopqrstuvwxyz.
ABCDEFGHIJKLMNOPQRSTUVWXYZ. 0123456789. abcdefghijklmnopqrstuvwxyz.
ABCDEFGHIJKLMNOPQRSTUVWXYZ. 0123456789. abcdefghijklmnopqrstuvwxyz.
Ghost
Recommendation
 Perform the calibration using the control panel or the printer driver (see Color
Calibration on page 111).
 Clear the Improve Gray Color check box of the printer driver.
Identify the color causing the problem and put in a new toner cartridge

(see Replacing the toner cartridges on page 122). To identify the color of the
toner cartridge, visit http://solutions.brother.com/ to view our FAQs and
troubleshooting tips.
 Install a new drum unit (see Replacing the drum unit on page 128).
 Make sure toner save mode is off in the control panel or the printer driver.
See Toner Save Mode in Advanced tab on page 41 (for Windows
driver), Advanced options on page 58 (for Windows
driver), Advanced print settings on page 73 (for Macintosh printer driver), or
Printer Features on page 77 (for Macintosh BR-Script printer driver).
 Change the print resolution.
If you use a Windows printer driver, choose Improve Pattern Printing in

Print Setting of the Basic tab (see Settings dialog box on page 36).
 Check the paper type and quality (see Acceptable paper and other print
media on page 2).
 Make sure that the back cover is closed completely.
 Make sure that the two gray levers inside the back cover are in the up
positions.
 Make sure that the media type setting in the driver matches the type of paper
you are using (see Acceptable paper and other print media on page 2).
Check the machine's environment. Conditions such as low humidity and low

temperatures may cause this print quality problem (see the Product Safety
Guide).
 Make sure that the media type setting in the printer driver matches the type
of paper you are using (see Acceptable paper and other print media
on page 2).
 Make sure you lift up the two gray levers inside the back cover until they stop
in the up position.
 Install a new drum unit (see Replacing the drum unit on page 128).
®
printer
®
BR-Script printer
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