Dell 1133 Laser Mono Printer - Manual (Page 44)

When selecting envelopes, consider the following factors:
Weight: The weight of the envelope paper should not exceed 90 g/m
2
otherwise, jam may occur.
Construction: Prior to printing, envelopes should lie flat with less than 6 mm curl, and should not contain
air.
Condition: Envelopes should not be wrinkled, nicked, nor damaged.
Temperature: Use envelopes that are compatible with the heat and pressure of the machine during
operation.
Use only well-constructed envelopes with sharp-and well-creased folds.
Do not use stamped envelopes.
Do not use envelopes with clasps, snaps, windows, coated lining, self-adhesive seals, or other synthetic
materials.
Do not use damaged or poorly made envelopes.
Be sure the seam at both ends of the envelope extends all the way to the corner of the envelope.
1. Acceptable
2. Unacceptable
Envelopes with a peel-off adhesive strip or with more than one flap that folds over to seal, must use adhesives
compatible with the machine’s fusing temperature of about 170 °C (338 °F) for 0.1 second. The extra flaps
and strips might cause wrinkling, creasing, or jams, and may even damage the fuser.
For the best print quality, position margins no closer than 15 mm (0.59 inches) from the edges of the
envelope.
Avoid printing over the area where the envelope’s seams meet.
Transparency
To avoid damaging the machine, only use transparencies designed for use in laser printers.
Transparencies used in the machine must be able to withstand machine’s fusing temperature.
Place them on a flat surface after removing them from the machine.
Do not leave unused transparencies in the paper tray for long periods of time. Dust and dirt may accumulate
on them, resulting in spotty printing.
To avoid smudging caused by fingerprints, handle them carefully.
To avoid fading, do not expose printed transparencies to prolonged sunlight.
Ensure that transparencies are not wrinkled, curled, or have any torn edges.