Gestetner f250 Guía De Operación

A.10

Double side-seams construction has vertical seams at both ends of the envelope 
rather than diagonal seams. This style may be more likely to wrinkle. Be sure the 
seam extends all the way to the corner of the envelope as illustrated below.

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 machine. The 
extra flaps and strips might cause wrinkling, creasing or even jams and may even 
damage the fuser.

The following gives typical address margins for a commercial #10 or DL envelope.

:

• For the best print quality, position margins no closer than 15 mm (0.6 in.) from the 

edges of the envelope.

• Avoid printing over the area where the envelope’s seams meet.

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 
may wrinkle during printing.

Return address

15 mm (0.6 in.)

51 mm (2 in.)

Delivery address

51 mm (2 in.)

90 mm (3.5 in.)

Correct

Incorrect