Method and apparatus for testing the duplicating characteristics of pressure-sensitive duplicating sheets
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United States of America Patent
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Apr 8, 1986
Grant Date -
N/A
app pub date -
Apr 5, 1984
filing date -
Apr 9, 1983
priority date (Note) -
Expired
status (Latency Note)
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Abstract
In a method and apparatus for testing the duplicating characteristics of pressure-sensitive duplicating sheets and duplicating sets produced therefrom, a stroke grid is drawn on the duplicating sheets to be tested by means of a marking stylus which is actuated either by mechanical or electromechanical devices to apply a selective a contact force, with the grid being evaluated either visually or by photoelectric reflectance measurement, the stroke grid consisting essentially of a plurality of individual strokes which overlap or are closely adjacent but which do not intersect.
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