Brother MFC-8510DN Basic User's Manual page 124

Examples of poor print
quality
Envelope Creases
ABCDEFGHIJKLMNOPQRSTUVWXYZ. 0123456789. abcdefghijklmnopqrstuvwxyz.
ABCDEFGHIJKLMNOPQRSTUVWXYZ. 0123456789. abcdefghijklmnopqrstuvwxyz.
ABCDEFGHIJKLMNOPQRSTUVWXYZ. 0123456789. abcdefghijklmnopqrstuvwxyz.
ABCDEFGHIJKLMNOPQRSTUVWXYZ. 0123456789. abcdefghijklmnopqrstuvwxyz.
Poor fixing
Curled
116
Recommendation
 Make sure that envelopes are printed with the back cover (face-up
output tray) opened.
See Printing on thick paper, labels and envelopes from the MP tray
uu page 12.
Check the envelope type and quality.

See Acceptable paper and other print media uu page 18.
 Make sure envelopes are fed only from the MP tray.
See Loading paper in the multi-purpose tray (MP tray) uu page 11.
 Choose Improve Toner Fixing mode in the printer driver.
See Software User's Guide: Printing (for Windows
See Software User's Guide: Printing and Faxing (for Macintosh).
If this selection does not provide enough improvement, change the
printer driver setting in Media Type to a thick setting.
 Choose Reduce Paper Curl mode in the printer driver.
See Software User's Guide: Printing (for Windows
See Software User's Guide: Printing and Faxing (for Macintosh).
 Open the back cover (face-up output tray) to let the printed paper exit
onto the face-up output tray.
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