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Ink control apparatus, printer, and printing method

A control device, ink technology, applied in printing presses, general parts of printing machinery, printing, etc., can solve complex problems

Inactive Publication Date: 2007-10-10
MITSUBISHI HEAVY IND LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since the operator operates a large number of ink keys to perform color adjustment of the printed pattern, the operator must perform complicated work

Method used

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  • Ink control apparatus, printer, and printing method
  • Ink control apparatus, printer, and printing method
  • Ink control apparatus, printer, and printing method

Examples

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Embodiment Construction

[0028] Hereinafter, exemplary embodiments according to the present invention will be explained in detail with reference to the accompanying drawings. The present invention is not limited to the following examples.

[0029] 1 is a schematic diagram of an operation unit of an ink control device in a printing press according to a first embodiment of the present invention. Fig. 2 is an external view of the ink control device in the printing press according to the first embodiment. Fig. 3 is a block diagram of the ink control device in the printing press according to the first embodiment. Fig. 4 is a processing block diagram of ink supply amount control performed by the ink control device in the printing press according to the first embodiment. Fig. 5 is a process block diagram of ink supply amount control for each ink keypad by the ink control means in the printing press according to the first embodiment. FIG. 6 is a graph of changes in ink key opening degrees with respect to i...

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Abstract

An image is created from PPF data and the image is displayed. An operator inputs a pre-set value of color adjustment from a color-adjustment-quantity operation screen. The color-adjustment-quantity operation screen includes a print display unit that displays a print color in a print measured by a colorimeter, a color-sample display unit that displays a target color in a color sample measured by the colorimeter, and a corrected-color display unit that displays a corrected color corresponding to a deviation between a colorimetric value of the print and a colorimetric value of the color sample.

Description

technical field [0001] The present invention relates generally to offset printing, and more particularly to the adjustment of ink supply in offset printing. Background technique [0002] A typical lithographic printing press includes printing units for the four ink colors of cyan, magenta, yellow and black, arranged along the transport path of the paper on which things are to be printed . Each printing unit includes an ink supply. The ink supply device includes an ink fountain, an ink roller, and a plurality of ink keys. By adjusting the gap (ink key opening) between a specific ink key and the ink reservoir ink roller, the ink supply corresponding to the ink key is adjusted. The adjusted ink supply is supplied to the printing plate of the plate cylinder via the ink roller set. Then, the ink on the printing plate is transferred to the printing paper as a pattern by a blanket cylinder. [0003] In the ink supply device, the ink keys are arranged along the printing width d...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B41F33/00B41F33/10B41F33/02
CPCB41F33/0036B41F33/0045
Inventor 永井秀明金子雅仁
Owner MITSUBISHI HEAVY IND LTD
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