Envelopes that have double side seams
Double side-seam construction has vertical seams at both ends of the envelope rather than diagonal
seams. This style might be more likely to wrinkle. Be sure that the seam extends all the way to the
corner of the envelope, as illustrated.
Envelopes that have adhesive strips or flaps
Envelopes that have a peel-off adhesive strip or with more than one flap that folds over to seal must
use adhesives that are compatible with the heat and pressure in the MFP. The extra flaps and strips
might cause wrinkling, creasing, or jams, and might even damage the fuser.
Envelope margins
The following table shows typical address margins for a commercial #10 or DL envelope.
Type of address Top margin Left margin
Return address 15 mm (0.6 inch) 15 mm (0.6 inch)
Delivery address 51 mm (2.0 inches) 89 mm (3.5 inches)
NOTE For the best print quality, position margins no closer than 15 mm (0.6 inch) from the
edges of the envelope. Avoid printing over the area where the envelope seams meet.
Envelope storage
Proper storage of envelopes helps contribute to print quality. Envelopes should be stored flat. If air is
trapped in an envelope, creating an air bubble, then the envelope might wrinkle during printing.
Media specifications 21
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