Ink jet image forming apparatus, and method for compensating defective nozzle thereof

A technology of imaging devices and nozzles, applied in printing devices, visual representation of matrix printers, printing, etc., can solve problems such as poor printing quality

Inactive Publication Date: 2007-04-04
SAMSUNG ELECTRONICS CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, this method cannot be used in cases where the nozzles ejecting inks of other colors (that is, inks other than black) are defective
Also, in the event that any of the nozzles used for compensation fails, compensation is performed using resultant colors such as red (yellow + magenta), green (cyan + yellow), and blue (cyan + magenta), which are different For the blackening method, very poor print quality will be obtained

Method used

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  • Ink jet image forming apparatus, and method for compensating defective nozzle thereof
  • Ink jet image forming apparatus, and method for compensating defective nozzle thereof
  • Ink jet image forming apparatus, and method for compensating defective nozzle thereof

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Embodiment Construction

[0043]Now, an exemplary inkjet image forming apparatus and a method of compensating a defective nozzle in the inkjet image forming apparatus according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings. For a better understanding of the following description, first the overall structure of the inkjet image forming apparatus is described, and then an exemplary method of compensating for defective nozzles in the inkjet image forming apparatus is described. In the drawings, the thickness of layers and regions are exaggerated for clarity. The meanings of the terms used herein should be determined in connection with the functions of the embodiments of the present invention, and may vary according to the purpose of a user or operator, or common knowledge of a person of ordinary skill in the art. Accordingly, corresponding meanings should be determined with reference to the entire specification. The same reference numera...

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Abstract

The present invention relates to an inkjet image forming apparatus and a method of compensating for defective nozzles in the inkjet image forming apparatus. By analyzing the ejection state of the nozzles ejecting ink at the compensation position and the positions adjacent to the compensation position, the compensation position is the position printed with the defective nozzle, and according to the ejection state of the nozzle, by the ejection and compensation position. Ink of different color from the ink of the defective nozzle mixes the ink ejected at the adjacent position to the compensation position to compensate the defective nozzle. Therefore, ink dots lost by defective nozzles can be compensated, so that deterioration of image quality, which is easily perceived by the user, such as leucorrhea, can be avoided. In addition, the compensation effect can be improved by adjusting the jetting quantity or chromaticity of ink jetted at or near the compensation position.

Description

[0001] This application claims priority under 35 U.S.C §119(a) to Korean Patent Application No. 10-2005-0090708 filed with the Korean Intellectual Property Office on September 28, 2005, the full disclosure of which is at Introduced here for reference. technical field [0002] The present invention relates to an inkjet imaging device. More particularly, it relates to an inkjet image forming apparatus that can compensate for image quality deterioration due to occurrence of defective nozzles, and a method for compensating for occurrence of defective nozzles in the inkjet image forming apparatus. Background technique [0003] In general, an inkjet image forming device is a device that ejects ink to form an image using a print head that is separated from a print medium by a predetermined interval and that reciprocates in a direction perpendicular to a conveying direction of the print medium. Such an inkjet imaging device that uses a printing head to spray ink on a printing mediu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B41J2/04B41J2/165B41J2/21G06K15/10
CPCB41J29/393B41J2/2139B41J2/0451B41J2/21B41J2/16585
Inventor 特勒克霍夫·弗拉迪斯拉夫
Owner SAMSUNG ELECTRONICS CO LTD
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