Printing – Processes – Condition responsive
Reexamination Certificate
2005-04-26
2005-04-26
Hirshfeld, Andrew H. (Department: 2854)
Printing
Processes
Condition responsive
C101S365000, C101SDIG029, C101SDIG029
Reexamination Certificate
active
06883432
ABSTRACT:
An ink feeding method for a printing machine includes a color density measuring step for measuring color density of prints at intervals of time, a variation coefficient computing step for computing a variation coefficient for varying the ink feeding rate based on the color density of prints and a target color density of prints, a color density gradient computing step for computing, based on the color density of prints, a color density gradient representing a rate of variation in the color density of prints occurring with an increase in the number of prints, an expected color density computing step for computing, based on the color density gradient, an expected color density of prints occurring after a predetermined number of prints are made, a determining step for determining whether the expected color density of prints occurring after the predetermined number of prints are made exceeds the target color density of prints, and a variation coefficient correcting step for correcting the variation coefficient when the expected color density of prints is determined to exceed the target color density of prints.
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Kiyohara Satoru
Muraji Kunio
Yamamoto Takaharu
Dainippon Screen Mfg. Co,. Ltd.
McDermott Will & Emery LLP
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