Document Type and Number:
Japanese Patent JPH0578022
Kind Code:
B2
Abstract:
PURPOSE:To easily adjust printing light quantity at the proper value by incorpo rating a unit to be an index into the other units and forming a single pattern as a whole. CONSTITUTION:In the pattern for adjusting light quantity, n(n>=1) units An and m(m>=1) units Bm are combined, and they are constituted of different patterns of dot gain. The units An and Bm are generated and composed of one or more plane dots which have the same screen line member and different dot densities through logic operations such as inversion and OR. The units An are composed of the shape and the dot gain in order to be the index for deciding the change of the optical light quantity. Then, the units An becoming the index are incorporated into the units Bm. In order to decide the change of light quantity from the units An becoming the index when the light quantity is changed, the combination of both units An and the units Bm are formed to a single pattern as a whole. Thus, the printing light quantity can be easily adjusted.
Inventors:
ISHII HIROKO
KOMATA KIMIO
KOMATA KIMIO
Application Number:
JP13834889A
Publication Date:
October 27, 1993
Filing Date:
May 31, 1989
Export Citation:
Assignee:
SHAKEN KK
International Classes:
B41B21/00; G03B27/72; G03B43/00; (IPC1-7): G03B43/00; B41B21/00; G03B27/72
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