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Paper Surface Smoothness
A single sheet of paper must have a surface within a smoothness range of 18 to
30 Bekk or 180 to 140 Sheffield.
The under side of the last page in a multi-form set must have a smoothness
range of 18 to 30 Bekk or 180 to 140 Sheffield.
Tolerance
Since variable length paper may be used in the sheet feeder, only width is
specified. The paper width tolerance in the same stack is 0.020" (0.51 mm).
Paper must be cut at an angle of 90 degrees and the deviation must not be
greater than 3 angular minutes.
Paper Weight
Single sheets 16-24 lbs (64 - 96g/m²).
Paper Storage Recommendation
64°F - 75°F
18°C - 24°C
40% - 60% relative humidity
Multi-part Forms
Multi-part forms are more complex than single sheets and adherence to
tolerances and environmental conditions is more critical. You should use
snap-out or top-glued form sets. You should test them before use.
Top-glued Forms The top edge of top-glued forms must be flat, smooth, and
free of glue vestiges. Form sets should be cut against the grain. On each side
of the form there should be an unglued 0.7" (20mm) wide.
Snap-out Forms The snap-out perforation ratio hole to paper must be 7:0.8
(first sheet and copies) and 3:0.8 (last sheet). An alternative can be micro-
perforation for the first and last sheet. (Recommended 72 dots/inch).
A–2 Paper Specifications and Technical Data
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