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Troubleshooting
117
B
Toner specks
Make sure that you use paper that meets our specifications. Rough-
surfaced paper may cause the problem.
See Acceptable paper and other print media uu page 19.
Clean the corona wire of the drum unit.
See Cleaning the corona wire uu page 74.
The drum unit may be damaged. Put in a new drum unit.
See Replacing the drum unit uu page 76.
The fuser unit may be contaminated.
Call Brother Customer Service at:
In USA: 1-877-BROTHER (1-877-276-8437)
In Canada: 1-877-BROTHER
Hollow print
Make sure that you use paper that meets our specifications.
See Acceptable paper and other print media uu page 19.
Choose Thick Paper mode in the printer driver, choose Thick in the
machine’s Paper Type menu setting or use thinner paper than you
are currently using.
See Paper Type uu page 16.
See Software User's Guide: Printing (for Windows
®
).
See Software User's Guide: Printing and Faxing (for Macintosh).
Check the machine’s environment. Conditions such as high humidity
can cause hollow print.
See Product Safety Guide: Choosing a location.
The drum unit may be damaged. Put in a new drum unit.
See Replacing the drum unit uu page 76.
All black
Clean the corona wire inside the drum unit by sliding the green tab.
Be sure to return the green tab to the home position (a).
See Cleaning the corona wire uu page 74.
The drum unit may be damaged. Put in a new drum unit.
See Replacing the drum unit uu page 76.
Examples of poor print
quality
Recommendation
ABCDEFGH
abcdefghijk
ABCD
abcde
01234
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