User Guide
Envelopes with 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. Make sure that the seam extends all the way to the
corner of the envelope, as illustrated.
1
2
1 Acceptable envelope construction
2 Unacceptable envelope construction
Envelopes that have adhesive strips or flaps
Envelopes that have a peel-off adhesive strip or more than one flap that folds over to seal must
contain adhesives that are compatible with the heat and pressure in the printer. The extra flaps and
strips might cause wrinkling, creasing, or jams and might even damage the fuser.
Envelope margins
The following are 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
Appropriate envelope storage helps contribute to good 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 35