Patent Number: 7,131,376

Title: Ink feeding method and ink feeding apparatus

Abstract: An ink feeding method includes a density reading step for reading density data obtained by measuring densities of detecting patches on a first image, before an end of a printing operation, a first computing step for computing, from the density data, an ink feed film thickness remaining after prints having the first image are made, a second computing step for computing an ink feed film thickness required for making prints having a second image, from a target density for the prints having the second image, a third computing step for computing a preset ink feeding rate from the ink feed film thickness remaining after the prints having the first image are made, computed in the first computing step, and the ink feed film thickness required for making the prints having the second image, computed in the second computing step, and an ink feeding step for feeding the preset ink based on the preset ink feeding rate computed in the third computing step.

Inventors: Yamamoto; Takaharu (Kyoto, JP), Takeda; Kazuya (Kyoto, JP), Fukui; Kazuki (Kyoto, JP)

Assignee: Dainippon Screen Mfg. Co., Ltd.

International Classification: B41F 31/00 (20060101); B41F 1/34 (20060101)

Expiration Date: 2019-11-07 0:00:00