Brother MFC-640CW - Manual (Page 14)

Printing
8
Enhanced Print Settings
1
Click the Settings button to see options for enhanced print settings.
Bi-Directional Printing
1
When Bi-Directional Printing is checked, the print heads print in both directions offering faster print speeds.
When unchecked, the print heads will only print in one direction giving higher quality printouts, but slower
printing speeds.
Enhanced Normal Printing
1
Use this mode if fine horizontal bands appear on the paper. This increases print resolution which helps to
avoid banding on some types of paper. Overall print quality is improved, but print speed is slightly slower than
in Normal mode. You can use this mode only when printing on Plain Paper, Slow Drying Paper or
Transparencies.