Ink jet recording apparatus and correcting method for image
US6834927B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 6, 2002 |
| Grant date | Dec 28, 2004 |
| Priority date | — |
| Expiry date | Nov 30, 2022 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2/515
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
An image correcting method for an ink jet recording apparatus for recording an image by ejecting ink onto a recording material using a recording head having an array of a plurality of nozzles for ejecting the ink, the method includes the steps of an outputting step of outputting at least two kinds of uniform patterns for detection of a recording property of a recording head; a measuring step of measuring a density distribution of the patterns outputted by the outputting step; a calculation step of calculating, for each of the kinds of patterns, data for correction for respective one of the plurality of nozzles on the basis of a result of the measuring step: an image correcting step of comparing data corresponding to the at least two kinds of patterns, classifying states of the plurality of nozzles, and correcting images corresponding to respective ones of the plurality of nozzles, wherein the correcting step effects correction processes which are different from depending on the classification.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.