Brother  HL-4140CN User Manual page 52

Envelopes
Most envelopes designed for laser printers
will be suitable for your machine. However,
some envelopes may have feed and print-
quality problems because of the way they
have been made. A suitable envelope should
have edges with straight, well-creased folds
and the leading edge should not be thicker
than two sheets of paper. The envelope
should lie flat and not be of baggy or flimsy
construction. You should buy quality
envelopes from a supplier who understands
that you will be using the envelopes in a laser
machine.
We recommend that you print a test envelope
to make sure the print results are what you
want.
Types of envelopes to avoid
IMPORTANT
DO NOT use envelopes:
• that are damaged, curled, wrinkled or
an unusual shape
• that are extremely shiny or textured
• with clasps, staples, snaps or tie
strings
• with self-adhesive closures
• that are of a baggy construction
• that are not sharply creased
• that are embossed (have raised writing
on them)
• that were previously printed by a laser
machine
• that are pre-printed on the inside
• that cannot be arranged neatly when
stacked
• that are made of paper that weighs
more than the paper weight
specifications for the machine
• with edges that are not straight or
consistently square
• with windows, holes, cut-outs or
2
perforations
• with glue on surface as shown in figure
below
• with double flaps as shown in figure
below
2
• with sealing flaps that are not folded
down when purchased
• with sealing flaps as shown in figure
below
• with each side folded as shown in
figure below
If you use any of the types of envelopes
listed above, they may damage your
machine. This damage may not be
covered under any Brother warranty or
service agreement.
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