The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 02, 1998
Filed:
Sep. 21, 1994
Applicant:
Inventors:
Akio Suzuki, Yokohama, JP;
Nobuhiko Ogata, Tokyo, JP;
Assignee:
Canon Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B41J / ;
U.S. Cl.
CPC ...
347 14 ; 347 12 ; 347 56 ; 358518 ; 358302 ;
Abstract
When a recording head having an arrangement of plural ejection portions for ejecting ink is moved for scanning, coefficients for the calculation of blur correction are set according to the number of nozzles used during scanning (magnification), and image signals corresponding to nozzles at scanning boundaries are corrected by an amount selected according to the set coefficients. This method makes it possible to always obtain a good image in which stripes formed at such boundaries are reduced even if image recording conditions are changed.