Lexmark All in One Printer - Manual (Page 33)

33 Choosing Print Materials
Envelope guidelines
When printing on envelopes:
• Use only new, undamaged envelopes.
• Make sure the glue is not exposed.
• Remember that a combination of high humidity (over 60%)
and the high printing temperatures may seal the envelopes.
• Be sure to select Env Feeder or MP Feeder as the paper
source and set the correct envelope size.
The laser printing process heats envelopes to a temperature of
200
o C (392 o F). Use only envelopes that are able to withstand these
temperatures without sealing, excessive curling, wrinkling, or releas-
ing hazardous emissions. If you have any doubts about the enve-
lopes you are considering using, check with the envelope supplier.
For best performance, use envelopes made from 75 g/m 2 (20 lb
bond) paper. You can use up to 105 g/m 2 (28 lb bond) weight for the
multipurpose feeder or 105 g/m 2 (28 lb bond) weight for the enve-
lope feeder as long as the cotton content is 25% or less. Envelopes
with 100% cotton content must not exceed 90 g/m
2 (24 lb bond)
weight.