Ink control apparatus, printer, and printing method

Abstract

This ink controller is equipped with an operating device 21 in which an operator can select a plurality of ink key zones for color adjustment on an image displaying plane 31 for displaying printed images from PPF data, and can input the total sum of color adjusting amounts as an indicted value on a color adjusting amount operating plane 33 so as to send in a lump the indicated value of the color adjusting amount by the operating device 21 to an arithmetic unit, and the arithmetic unit which sets the amount of a variation at each ink component in the plurality of ink key zones selected from the indicated value and updates the amount of supply at each ink component so as to add the variation to the amount of supply at each ink component in order to update the amount of supply at each ink component, resulting in controlling ink supplying devices according to the updated amount of supply at each ink component. To improve workability by simplifying color adjusting work, and to reduce a load applied on an operator in an ink controller, a printing machine and a printing method.

Description

technical field [0001] The present invention relates to an ink control device capable of adjusting an ink supply amount according to a plurality of ink areas divided in the printing width direction, a printer having the ink control device, and a printing method. Background technique [0002] In a general lithographic printing (offset) printer, there are four ink colors, cyan (Cyan), magenta (Magenta), yellow (yellow), and black (Black), along the conveying path of the printing paper (sheet). Each printing unit has an ink supply device of an ink key type. In this ink supply device, the amount of ink supply can be adjusted based on the amount of clearance (opening degree of the ink valve plate) of the ink supply roller relative to the ink valve plate. Therefore, the ink whose supply amount is adjusted by each ink valve plate is supplied to the plate surface of the printing cylinder via the ink roller group, and the ink adhering to the plate surface is transferred to the print...

AI Technical Summary

Problems solved by technology

In this case, although the operation time of a plurality of individual setting switches is shortened, it is necessary to operate all the individual setting switches when performing color adjustment, which cannot eliminate the complexity of color adjustment work, and also cannot eliminate the need for operators to workload of

[0011] In addition, in the printing device described in Patent Document 2, key operation switches for adjusting the opening degrees of each ink valve plate are displayed on the display screen of the touch panel type control panel, and when the switching switch is operated, the key operation switches are simultaneously displayed. The pattern of the printed matter is operated by switching and printing, but the operator has to operate multiple ink valves to adjust the color of the pattern of the printed matter, so it becomes a cumbersome operation

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