Method and apparatus for testing the duplicating characteristics

Details Method and apparatus for testing the duplicating characteristics Method and apparatus for testing the duplicating characteristics

1984-04-05

1986-04-08

Woodiel, Donald O.

Measuring and testing

Gas content of a liquid or a solid

By vibration

73150R, G01N 308

Patent

active

045804389

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.

REFERENCES:
patent: 2300107 (1942-10-01), Curado et al.
patent: 4203320 (1980-05-01), Walter

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