PRINTING QUALITY EVALUATION METHOD

PURPOSE:To highly precisely manage printing quality by printing the various patterns of gradation picture such as a drawing and a photograph. CONSTITUTION:A printing quality evaluation method evaluating the printing quality of a sheet printed in a printing device prints at least one pattern among th...

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Bibliographische Detailangaben
Hauptverfasser:	ASANO TOSHIRO, KATSUTA DAISUKE
Format:	Patent
Sprache:	eng
Schlagworte:	APPARATUS SPECIALLY ADAPTED THEREFOR CALCULATING CINEMATOGRAPHY COMPUTING CORRECTION OF TYPOGRAPHICAL ERRORS COUNTING ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY ELECTROGRAPHY HOLOGRAPHY i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME IMAGE DATA PROCESSING OR GENERATION, IN GENERAL INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES LINING MACHINES MATERIALS THEREFOR MEASURING ORIGINALS THEREFOR PERFORMING OPERATIONS PHOTOGRAPHY PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES,e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTORDEVICES PHYSICS PICTORIAL COMMUNICATION, e.g. TELEVISION PRINTING SELECTIVE PRINTING MECHANISMS STAMPS TESTING TRANSPORTING TYPEWRITERS
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Beschreibung
Zusammenfassung:	PURPOSE:To highly precisely manage printing quality by printing the various patterns of gradation picture such as a drawing and a photograph. CONSTITUTION:A printing quality evaluation method evaluating the printing quality of a sheet printed in a printing device prints at least one pattern among the half tone density pattern of half tone density 1, a line pattern 2 which is formed by plural lines and whose inter-line density becomes narrow stepwise and a density gradation pattern 3 in which areas different in density are plotted stepwise, and it evaluates the printed pattern concerned.