Patch forming device
AssigneeBrother Kogyo Kabushiki Kaisha
InventorsMasashi Ueda, Masahiro Nishihara
Life of this patent
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Abstract
When forming a test chart for investigating output characteristic relating to yellow color agent, a printer outputs yellow color agent in a plurality of densities that correspond to various density levels and also outputs cyan color agent in a fixed and maximum density. Patches in gradations from cyan to green are formed by overlapping the yellow color agent and the cyan color agent. The patches are formed with respect to a surrounding area that is formed by outputting the cyan color agent in the fixed and maximum density. Accordingly, the colors of the patches are easier to distinguish than when the patches are formed from yellow only. Visual calibration can be easily performed even with the yellow color agent that has a low visual sensitivity.
Claims14
A patch forming device for forming a plurality of color patches to be used for determining output characteristics of an image forming unit that can form images using a plurality of different color agents, the patch forming device comprising:
- a patch-data supplying portion supplying, an image forming unit that can form images using a plurality of different color agents, with patch-data for forming a plurality of color patches by a first color agent and a second color agent among the plurality of color agents, the second color agent being different from the first color agent, the patch-data including first patch-data indicative of a plurality of different levels of color density for the first color agent and second patch-data indicative of a fixed level of color density for the second color agent, thereby causing the image forming unit to output a plurality of different color patches on a recording medium, each color patch being formed of mixture of the first color agent in a corresponding density and the second color agent in the fixed density;
- and
- a surrounding-area-data supplying portion supplying the image forming unit with surrounding-area-data indicative of the fixed level of color density for the second color agent, thereby causing the image forming unit to form a surrounding-area image with the fixed density of the second color agent on the recording medium at a surrounding area that is defined around the plurality of color patches.
A patch forming program to be executed by a computer to form a plurality of color patches to be used for determining output characteristics of an image forming unit that can form images using a plurality of different color agents, the program comprising:
- a patch-data supplying program supplying, an image forming unit that can form images using a plurality of different color agents, with patch-data for forming a plurality of color patches by a first color agent and a second color agent among the plurality of color agents, the second color agent being different from the first color agent, the patch-data including first patch-data indicative of a plurality of different levels of color density for the first color agent and second patch-data indicative of a fixed level of color density for the second color agent, thereby causing the image forming unit to output a plurality of different color patches on a recording medium, each color patch being formed of mixture of the first color agent in a corresponding density and the second color agent in the fixed density;
- and
- a surrounding-area-data supplying program supplying the image forming unit with surrounding-area-data indicative of the fixed level of color density for the second color agent, thereby causing the image forming unit to form a surrounding-area image with the fixed density of the second color agent on the recording medium at a surrounding area that is defined around the plurality of color patches.
Dependencies are inferred from the claim text.