Lexmark Optra Optra T User Manual page 64

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5
Flex a stack of envelopes back and forth.
6
Straighten the edges on a level surface. Press down the
corners to flatten them. Fan the envelopes. This prevents the
edges of the envelopes from sticking together and helps them
feed properly.
N : When you load envelopes, do not exceed the
OTE
maximum stack height of 64.7 mm (2.55 in.).
The envelope feeder holds a maximum of 85
envelopes (75 g/m
64
2
, 20 lb bond).