Screen Holdings Co., Ltd.

Hiroki Endo

Kenichi Yokouchi

Asuka Muramatsu

Tomotaka Kato

Shigenori Arizono

Ryoko Sakurai

Kohei Ueda

Yuya Takagi

Kensuke Usui

The inkjet printing apparatus is configured to be able to execute a batch adjustment process of performing a plurality of times of adjustment processes related to printing in succession based on one instruction from an outside. The conveyance control unit maintains the conveyance speed at a first speed in a period when a chart printing process is performed and a period when a chart imaging process is performed. The conveyance control unit decreases the conveyance speed from the first speed to the second speed after the end of the chart imaging process in an adjustment process except for an adjustment process that is performed last in the batch adjustment process, and increases the conveyance speed from the second speed to the first speed before the start of the chart printing process in an adjustment process that is performed next.

Printing apparatus and batch adjustment method therefor

A computer analyzes submitted data to identify insufficient data among data necessary for executing C&#xd7;F color conversion process. When spectral characteristic data of a patch constituting a C&#xd7;F chart is insufficient, a computer supplements the spectral characteristic data. When complete printing order data has not been obtained, the computer supplements printing order data. The color conversion process is performed using the data after supplement.

Color data conversion method, color data conversion device, and non-transitory computer-readable recording medium recording color data conversion program

There is provided a color matching method including: step of, for each of segmented regions obtained by dividing a region of an entire color chart into a plurality of regions so that boundaries of the segmented regions are parallel to the feeding direction of the base material, determining average color difference between colorimetric values of a color chart outputted from the reference device and colorimetric values of a color chart outputted from the adjustment target device; a step of, taking a segmented region whose average color difference is minimum as the reference region, calculating difference values of the average color differences between the reference region and each of the segmented regions other than the reference region; and a step of specifying a segmented region whose difference value is equal to or greater than a predetermined threshold value as an abnormal region in which abnormality of a head is occurring.

Color matching method, and recording medium having color matching program recorded thereon

Growing community of inventors

Kyoto, Japan

Hiroki Endo