HP 4250/4350 manual Envelopes with double side seams, Envelopes with adhesive strips or flaps

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. Be sure the seam extends all the way to the corner of the envelope as illustrated below.

1

2

1Acceptable envelope construction

2Unacceptable envelope construction

Envelopes with adhesive strips or flaps

Envelopes with a peel-off adhesive strip or with more than one flap that folds over to seal must use adhesives compatible with the heat and pressure in the printer. The extra flaps and strips might cause wrinkling, creasing, or even jams and might even damage the fuser.

Envelope margins

The following gives 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 inches)	89 mm	(3.5 inches)
	For the best print quality, position margins no closer than 15		mm (0.6 inch) from the edges
NOTE
	of the envelope. Avoid printing over the area where the envelope's 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.

For more information, see Printing envelopes.

238 Appendix C Specifications ENWW