Brother MFC-9120CN - Manual (Page 35)

Printing
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1
Improve Print Output
1
This feature allows you to improve a print quality problem.
 Reduce Paper Curl
If you choose this setting, the paper curl may be reduced.
If you are printing only a few pages, you do not need to choose this setting. We recommend that you
change the printer driver setting in Media Type to a thin setting.
Note
This operation will decrease the temperature of the machine's fusing process.
 Improve Toner Fixing
If you choose this setting, the toner fixing on paper may be improved. If this selection does not provide
enough improvement, select Thicker Paper in Media Type settings.
Note
This operation will increase the temperature of the machine's fusing process.