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:
Feb. 18, 2003
Filed:
Dec. 26, 1996
Hiroyuki Miyake, Kawasaki, JP;
Makoto Katsuma, Kawaguchi, JP;
Abstract
A printing method which can complement an image defect caused by ejection failure and thus to obtain high definition image even when failure, such as faulty ejection or non-ejection failure, is caused in any of ejection mechanism as a plurality of printing elements of a printing head. The printing method includes step of detecting faulty nozzle of the printing head, step of performing printing excluding the faulty nozzle during primary scanning, step subsequently of providing a shift for the printing head in an auxiliary scanning direction at least a pitch between the nozzles, step of performing complemental printing with other normal nozzle for a printing region corresponding to the faulty nozzle which could not be printed in the printing step, and step of eliminating shift of the printing head in the auxiliary scanning direction.