PICTURE TONE CONTROLLER OF PRINTER AND PICTURE TONE CONTROL METHOD

Title:

PICTURE TONE CONTROLLER OF PRINTER AND PICTURE TONE CONTROL METHOD

Document Type and Number:

WIPO Patent Application WO/2007/083798

Kind Code:

A1

Abstract:

A picture tone control device of a printer and its method for controlling the tone with high accuracy even if printing is performed by using different screenings. The picture tone control device comprises printing characteristic information acquiring means for acquiring printing characteristic information of a printer corresponding to the type of the screening used to make a plate of a print picture, screening information acquiring means (18B) for acquiring the types of the screenings used for the regions of the print picture in association with the regions, pixel-of-interest region setting means (18A) for setting a specific pixel region as a pixel-of-interest region in the print picture of each ink supply zone of the printer, and ink supply amount control means (20) for controlling the amount of ink supplied according to the printing characteristic information corresponding to the type of the screening of the pixel-of-interest region.

Inventors:

OZAKI IKUO (JP)
TAKEMOTO SHUICHI (JP)
TASAKA NORIFUMI (JP)

Application Number:

PCT/JP2007/050921

Publication Date:

July 26, 2007

Filing Date:

January 22, 2007

Export Citation:

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Assignee:

MITSUBISHI HEAVY IND LTD (JP)
OZAKI IKUO (JP)
TAKEMOTO SHUICHI (JP)
TASAKA NORIFUMI (JP)

International Classes:

B41F31/02; B41F33/00

Foreign References:

JP2004106523A	2004-04-08
JP2000341525A	2000-12-08
JP2001158082A	2001-06-12

Other References: