Image forming apparatus
AssigneeSamsung Electronics Co., Ltd.
InventorSun-Hae Jung
Life of this patent
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Abstract
An image forming apparatus having a plurality of halftone tables to store a toner quantity value corresponding to a displacement of a gradation grade value of a pixel of image data in different patterns, respectively. The image forming apparatus also has a controller to output print image information by selecting any one of the halftone tables and by fetching a toner quantity value corresponding to a gradation grade value of each pixel of original image data in the selected halftone table, and an engine to print an image corresponding the print image information as output in the controller in recording media. Therefore, it is possible to enhance quality of the print image by extending a range of gradation representation in a desired region according to the characteristics of the printed image.
Claims18
An image forming apparatus comprising:
- a plurality of halftone tables each to store a standard gradation grade value and a toner quantity value corresponding to a displacement of the standard gradation grade value in different patterns, respectively;
- a controller to output a print image information generated by selecting any one of the halftone tables and fetching a corresponding toner quantity value in the selected halftone table with respect to a gradation grade value of each pixel of original image data as input;
- and
- an engine to print a corresponding image to the print image information provided from the controller.
A method of enhancing the quality of an image to be printed comprising:
- providing halftone tables each to store a standard gradation grade value and a toner quantity value corresponding to a displacement of the standard gradation grade value in different patterns, respectively;
- outputting print image information generated by selecting any one of the halftone tables provided and fetching a corresponding toner quantity value in the selected halftone table with respect to a gradation grade value of each pixel of original image data as input;
- and
- printing an image corresponding to the print image information output.
Dependencies are inferred from the claim text.