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Method and device used for correcting printing error

An error and printing paper technology, which is applied in the field of correction of printing errors in inkjet printers, and can solve problems such as poor printing status

Inactive Publication Date: 2004-10-06
SAMSUNG ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The printer head ejects ink onto the part of the paper where the ink has been ejected, thus causing a bad print condition
Therefore, when the end of the printing paper passes the feed roller, the above-mentioned problems may occur

Method used

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  • Method and device used for correcting printing error
  • Method and device used for correcting printing error
  • Method and device used for correcting printing error

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Embodiment Construction

[0023] Reference will now be made in detail to specific embodiments of the invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to like elements. The embodiments are described below in order to explain the present invention by referring to the figures.

[0024] Referring to Fig. 1, the method for correcting printing errors according to an embodiment of the present invention includes: printing a reference line and a comparison line by making a piece of printing paper detached from a paper feed roller move half the width of the printer head; Use the reference line and comparison line to detect the error distance, so as to correct the moving distance of the printing paper (operation 10-18).

[0025] First, it is judged whether the end of a piece of printing paper has been detached from the feed roller which periodically moves the printing paper by the width of the printer head (operation 10). The width of the printer he...

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Abstract

A method for correcting a printing error in an inkjet printer having a printer head on which the 1through 2Nnozzles are provided, in which N is a positive integer greater than 0, the method including: determining whether a trailing end of a print paper has escaped from the feed roller which periodically moves the print paper the width of the printer head; if the trailing end of the print paper is determined to have escaped from the feed roller, moving the print paper half the width of the printer head and printing a reference line by ejecting ink at a predetermined interval using a knozzle (1<=k<=N) among the 1though Nnozzles disposed above the print paper; moving the print paper on which the reference line is printed half the width of the printer head and printing comparison lines by ejecting ink at a predetermined interval using the (N+1)through 2Nnozzles disposed above the print paper; detecting an error distance between the reference line and the comparison line printed by the lnozzle (N+1<=L<=2N) disposed at a position corresponding to the knozzle among the (N+1)through 2Nnozzles; and correcting a distance that the print paper moved according to the detected error distance.

Description

[0001] This application claims priority from Korean Application No. 2003-3470 filed with the Korean Intellectual Property Office on January 18, 2003, the contents of which are hereby incorporated by reference. technical field [0002] The present invention relates to the correction of printing errors in ink jet printers, and more particularly to a method and apparatus for correcting printing errors related to improper feed motion caused by feed rollers. Background technique [0003] In general, an inkjet printer prints various materials displayed on a computer monitor onto printing paper based on electronic signals received from a computer. Typically, an inkjet printer has a pickup roller, a feeding roller, one or more printer heads, and an exhaust roller. During the printing process of the inkjet printer, the printing paper in the paper box is transported to the paper delivery roller one by one by the pick-up roller. The printing paper fed to the paper feed roller is sent ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B41J11/46B41J13/00B41J29/393
CPCB41J11/46B41J29/393B41J13/0009
Inventor 李龙德
Owner SAMSUNG ELECTRONICS CO LTD
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