Print system and printer
AssigneeKonica Minolta Business Technologies, Inc.
InventorToshitsugu Yamamoto
Life of this patent
Estimating the term…
Abstract
A print system includes a computer and a printer. Image data having pseudo gradation with a dither pattern are printed by the printer. The computer divides the image data into predetermined areas, determines whether or not a dot arrangement pattern of image data in each of the areas matches a dither pattern that was used for generating the pseudo gradation, determines a representative value concerning a density of image data within the area if they match one another, and sends data related to the determined representative value to the printer. The printer obtains a representative value of each area from compressed data received from the computer and compares the obtained representative value with the dither pattern so as to reproduce a dot pattern.
Claims9
A print system including a computer and a printer, the print system being for printing image data having pseudo gradation generated by using a dither pattern by the printer, wherein
- the computer divides the image data into predetermined areas, determines whether or not a dot arrangement pattern of image data in each of the areas matches a dither pattern that was used for generating the pseudo gradation, determines a representative value concerning a density of image data within the area if they match one another, and sends data related to the determined representative value to the printer, and
- the printer obtains a representative value of each area from data that are received from the computer and compares the obtained representative value with the dither pattern so as to reproduce a dot pattern.
A printer for printing an image by expanding compressed data that are received from a computer that produces the compressed data by dividing image data having pseudo gradation generated by using a dither pattern into predetermined areas and by determining a representative value concerning a density of image data within the area if a dot arrangement pattern of image data in each of the areas matches the dither pattern, wherein
- the printer stores a dither pattern that is the same as the dither pattern provided to the computer, and the printer reproduces the image data having pseudo gradation before compressed by comparing the representative value received from the computer with the dither pattern so as to generate a dot pattern and by expanding the generated dot pattern.
Dependencies are inferred from the claim text.