Brother DCP-9055CDN User Manual
Page 113
Troubleshooting
105
B
Uneven density appears
periodically across the page
Perform the calibration. (See Calibration on page 77.)
Adjust the contrast or brightness when you are in copy mode. (See
Adjusting Contrast, Colour and Brightness in Chapter 3 of the
Advanced User's Guide.)
Identify the colour that is uneven and put in a new toner cartridge for
that colour. (See Replacing a Toner cartridge on page 35.)
To identify the colour of the toner cartridge, visit us at
o view our FAQs and troubleshooting
tips.
Put in a new drum unit. (See Replacing the drum unit on page 42.)
Thin lines do not print
Make sure Toner Save mode is off in the control panel of the machine
or the printer driver.
Change the print resolution.
If you use a Windows
®
printer driver, choose
Improve Pattern Printing or Improve Thin Line in Settings from
the Basic tab. (See Settings Dialog in the Software User's Guide.)
Wrinkle
Change to the recommended type of paper.
Make sure that the back cover is closed properly.
Make sure that the two grey levers inside the back cover are in the up
position.
Make sure that the media type settings in the printer driver and in the
machine’s Paper Type menu matches the type of paper you are
using. (See Acceptable paper and other print media on page 20 and
Basic tab in the Software User's Guide.)
Offset image
Make sure that the media type settings in the printer driver and in the
machine's Paper Type menu matches the type of paper you are
using. (See Acceptable paper and other print media on page 20 and
Basic tab in the Software User's Guide.)
Make sure that the two grey levers inside the back cover are in the up
position.
Check the machine’s environment. Conditions such as low humidity
and low temperatures may cause this print quality problem. (See
Choosing a location in the Safety and Legal Booklet.)
Put in a new drum unit. (See Replacing the drum unit on page 42.)
Examples of poor print
quality
Recommendation
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