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Method and apparatus for processing halftone in printer employing tri-level development

A technology of half-tone processing and developing method, which is applied in the direction of electric recording process using charge pattern, electric recording process using charge pattern, equipment for electric recording process using charge pattern, etc., which can solve the problems of image quality reduction and the like

Inactive Publication Date: 2006-11-29
SAMSUNG ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Therefore, it can be seen from the above that the image quality is greatly reduced

Method used

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  • Method and apparatus for processing halftone in printer employing tri-level development
  • Method and apparatus for processing halftone in printer employing tri-level development
  • Method and apparatus for processing halftone in printer employing tri-level development

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Embodiment Construction

[0032] The detailed contents in the specification are used to help a comprehensive understanding of the various embodiments of the present invention disclosed in conjunction with the accompanying drawings. Accordingly, those skilled in the art will appreciate that various changes and modifications can be made to the described embodiments without departing from the spirit and scope of the present invention as defined by the claims. Descriptions of well-known functions and constructions are omitted for clarity and conciseness.

[0033] Figure 4 is a flowchart for explaining a printing method according to an embodiment of the present invention. refer to Figure 4 , in the printing method according to an embodiment of the present invention, a video signal is input (S402). The video signal may include information relating to two colors such as Y and K or C and M. Additionally, the video signal input to the printer may include information related to all four colors. However, f...

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Abstract

A method and apparatus for processing halftone by generating a first dot pattern corresponding to a first color and a second dot pattern corresponding to a second color for a video signal having at least two colors is provided. The method includes generating the first dot pattern by halftone processing the video signal using a first screen, and generating the second dot pattern by halftone processing the video signal using a second screen, which has a relationship of complement relative to the first screen.

Description

technical field [0001] The invention relates to a printer adopting a three-stage developing method, through which two types of electrostatic latent images, positive electrostatic latent images and negative electrostatic latent images, can be developed with one exposure. More particularly, the present invention relates to a method of improving image quality by preventing dot patterns corresponding to the two types of electrostatic latent images from overlapping with each other. Background technique [0002] A printer is a common mechanism for outputting computer-processed images. Printers have become one of the basic building blocks in multifunction printers, fax machines, cash registers and automated teller machines (ATMs). [0003] So far, a daisy wheel printer, a dot pin printer, and a laser printer have been developed. In particular, inkjet and laser printers are the most popular among mid-priced printers. A laser printer includes components such as toner, light (laser...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G03G13/01G03G15/01
CPCG03G2215/0495H04N1/52G03G2215/0187G03G15/0115G03G15/0121H04N1/4051
Inventor 朴宣姝姜龟守金相昊金炅万吴炫受张美正
Owner SAMSUNG ELECTRONICS CO LTD