Panasonic KX-FLB753HK Operating Instructions Manual page 59

Do not use envelopes with any of the
following characteristics (using these may
result in paper jams):
L Irregularly shaped envelopes
L Envelopes with curls, wrinkles, nicks, twists,
dog-ears or other damage
L Envelopes with side seam construction
L Highly textured envelopes, or envelopes with
extremely shiny surfaces
L Envelopes that seal by removing a peel-off
strip
L Envelopes with more than one flap to be
sealed
L Self-adhesive envelopes
L Envelopes that are baggy or not sharply
creased
L Embossed envelopes
L Envelopes that have previously been printed
on
L Envelopes that include cotton and/or fibre
material
Side seam Peel-off strip
construction
Twist Curl
Wave Dog-ear
Do not attempt to print on any of the
following types of envelopes (these may
cause damage to the fax machine):
L Envelopes with clasps, snaps or tie strings
L Envelopes with transparent windows
L Envelopes that use encapsulated types of
Multiple flaps
Bent-edge
Self adhesive
Printing (PC)
adhesive that do not require moistening but
rely on pressure to seal them
Clasp
Transparent window
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