Brother DCP-395CN Software User's Manual page 28

Printing
Change Data Transfer Mode
The Change Data Transfer Mode feature lets you choose print data transfer mode to improve print quality
or print speed.
Recommended Setting
Choose Recommended Setting for general use.
Improved Print Quality
Choose Improved Print Quality for better print quality. Print speed may be reduced slightly, depending
on the print data.
Improved Print Speed
Choose Improved Print Speed for faster print speed.
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