Brother MFC-8510DN Basic User's Manual page 128

Examples of poor print
quality
ABCDEFGH
abcdefghijk
A B C D
a b c d e
0 1 2 3 4
Grey background
Ghost
ABCDEFGH
abcdefghijk
A B C D
a b c d e
0 1 2 3 4
Toner specks
120
Recommendation
 Make sure that you use paper that meets our specifications.
uu Acceptable paper and other print media uu page 19
 Check the machine's environment. Conditions such as high
temperatures and high humidity can increase the amount of
background shading.
uu Product Safety Guide: Choose a safe location for your product
 Put in a new toner cartridge.
uu Replacing the toner cartridge uu page 64
Put in a new drum unit.

uu Replacing the drum unit uu page 70
Make sure that you use paper that meets our specifications. Rough-

surfaced paper or thick paper may cause this problem.
uu Acceptable paper and other print media uu page 19
 Make sure that you choose the appropriate media type in the printer
driver or in the machine's Paper Type menu setting.
uu Paper Type uu page 16
uu Software User's Guide: Printing (for Windows
uu Software User's Guide: Printing and Faxing (for Macintosh)
 Choose Reduce Ghosting mode in the printer driver.
uu Software User's Guide: Printing (for Windows
uu Software User's Guide: Printing and Faxing (for Macintosh)
 Put in a new drum unit.
uu Replacing the drum unit uu page 70
 Put in a new toner cartridge.
uu Replacing the toner cartridge uu page 64
 The fuser unit may be contaminated.
Call Brother customer service for support.
 Make sure that you use paper that meets our specifications. Rough-
surfaced paper may cause the problem.
uu Acceptable paper and other print media uu page 19
 Clean the corona wire on the drum unit.
uu Cleaning the corona wire uu page 78
 The drum unit may be damaged. Put in a new drum unit.
uu Replacing the drum unit uu page 70
 The fuser unit may be contaminated.
Call Brother customer service for support.
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