Brother MFC-J425W Software User's Manual page 31

Printing
Change Data Transfer Mode
The Change Data Transfer Mode feature lets you choose a 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 slightly reduced, depending
on the print data.
 Improved Print Speed
Choose Improved Print Speed for faster print speed. Print quality may be slightly reduced, depending on
the print data.
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