Lexmark Optra S1625 User Manual page 284

Installing Options
268
Envelope Feeder Option
7
Load the stack of envelopes with the address side up and
flap side down. The flap side edge of the envelope should
be facing the left side of the envelope feeder. Make sure the
envelopes at the bottom of the stack slide into the envelope
feeder slightly more than the ones at the top of the stack.
Note: Do not try to load more envelopes by forcing them
under the envelope feeder weight. This results in
jams.
Note: Do not feed stamped envelopes. The stamp is shown
for placement only.
W : Never use envelopes with clasps, snaps,
ARNING
windows, coated linings, or self-stick
adhesives. These envelopes may severely
damage the printer. See "Envelope
Guidelines" on page 130 for more
information.