Brother DCP-L8400CDN Basic User's Manual page 135

Examples of poor print quality
ABCDEFGHIJKLMNOPQRSTUVWXYZ. 0123456789. abcdefghijklmnopqrstuvwxyz. ABCDEFGHIJKLMNOPQRSTUVWXYZ. 0123456789. abcdefghijklmnopqrstuvwxyz.
ABCDEFGHIJKLMNOPQRSTUVWXYZ. 0123456789. abcdefghijklmnopqrstuvwxyz. ABCDEFGHIJKLMNOPQRSTUVWXYZ. 0123456789. abcdefghijklmnopqrstuvwxyz.
ABCDEFGHIJKLMNOPQRSTUVWXYZ. 0123456789. abcdefghijklmnopqrstuvwxyz. ABCDEFGHIJKLMNOPQRSTUVWXYZ. 0123456789. abcdefghijklmnopqrstuvwxyz.
ABCDEFGHIJKLMNOPQRSTUVWXYZ. 0123456789. abcdefghijklmnopqrstuvwxyz. ABCDEFGHIJKLMNOPQRSTUVWXYZ. 0123456789. abcdefghijklmnopqrstuvwxyz.
Colour misregistration
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 thin lines in images
ABCDEFGHIJKLMNOPQRSTUVWXYZ. 0123456789. abcdefghijklmnopqrstuvwxyz.
ABCDEFGHIJKLMNOPQRSTUVWXYZ. 0123456789. abcdefghijklmnopqrstuvwxyz.
ABCDEFGHIJKLMNOPQRSTUVWXYZ. 0123456789. abcdefghijklmnopqrstuvwxyz.
ABCDEFGHIJKLMNOPQRSTUVWXYZ. 0123456789. abcdefghijklmnopqrstuvwxyz.
Wrinkled
Recommendation
 Make sure the machine is on a solid level surface.
 Perform the colour registration using the Touchscreen
(see Colour Registration on page 96).
 Put in a new drum unit (see Replacing the drum unit
on page 59).
 Put in a new belt unit (see Replacing the belt unit
on page 65).
 Perform the calibration using the Touchscreen or the printer
driver (see Colour Calibration on page 95).
 Adjust the copy density and contrast if you are copying
(see Advanced User's Guide).
 Clear the Improve Grey Colour check box in the printer
driver. (See Software and Network User's Guide.)
 Identify the colour causing the problem and put in a new
toner cartridge (see Replacing the toner cartridges
on page 54).
To identify the colour of the toner cartridge, visit
http://solutions.brother.com/ to view our FAQs and
troubleshooting tips.
 Put in a new drum unit (see Replacing the drum unit
on page 59).
 Make sure Toner Save mode is off in the Touchscreen or the
printer driver (see Software and Network User's Guide).
 Change the print resolution.
 Make sure the back cover is closed correctly.
 Make sure the two grey levers inside the back cover are in
the up position.
 Make sure the media type setting in the driver matches the
type of paper you are using (see Acceptable paper and other
print media on page 30).
Troubleshooting
127
B