Specifications

Chapter 1: Printer Specifications
1-8
Envelope Specifications
Envelope Properties Specifications
Paper Envelope construction must meet all of the specifications listed in this chapter.
Composition 100% chemical wood pulp and/or cotton fiber
Basis Weight
(single layer)
20 to 24 pound (75 to 90 g/m
²
)
Caliper 3.3 to 5.5 mils (0.084 to 0.14 mm) single layer thickness
Electrical Properties Surface resistivity: 2.0 to 15 x 10
10
ohm/sq.
Volume resistance: 1.2 to 15 x 10
11
ohm x cm
(conditioned at 23° C and 50% relative humidity)
Fusing Compatibility All inks, adhesives, and other materials of the envelope must be compatible with
the heat and pressure of the fusing process. Materials must not discolor, melt,
offset material, or release hazardous emissions when heated to 392° F (200° C)
for 0.1 second.
Finishing Envelopes must not have exposed adhesive. Each envelope must be
accurately folded (+/- 0.04 inch) so there are no more than two thicknesses of
paper along the leading edge. Folds must be sharply creased and construction
must be tight (not baggy).
Curl Envelopes must lie flat with no more than 0.25 inch (6 mm) curl across the
entire surface.
Moisture Content 4% to 6% by weight
Smoothness 80 to 180 Sheffield
Printing accuracy
The DEClaser 3500 laser printer is designed to be accurate within the
following print image parameters:
Lead Edge Registration:
±2.0mm
Side Edge Registration:
±2.5mm
Skew:
±1.7mm (at a width of 190mm)
Vertical Accuracy:
±0.82mm (at a height of 114.5mm)
Feeding Accuracy:
±0.7mm (at the height of 234mm)
Horizontal Accuracy:
±1.0mm (at a width of 190mm and a
height of 234mm)