H - Electricity – 04 – N
Patent
H - Electricity
04
N
73/53, 178/3.1
H04N 1/00 (2006.01) B41F 33/00 (2006.01) G01N 21/86 (2006.01) G03F 5/00 (2006.01)
Patent
CA 1136993
ABSTRACT OF THE DISCLOSURE In printing with dots, a dot percentage is one of the important factors which determine the quality of a printed matter, and accordingly it is essential to con- trol the dot percentage throughout the printing process from makeup to printing. In order to readily and quickly measure the dot percentage with high accuracy, a microscope section and a display section are formed as one unit, and a correction circuit for light trans- mittivity is provided.
333875
Dai Nippon Insatsu Kabushiki Kaisha
Macrae & Co.
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