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:
Mar. 24, 2009
Filed:
Dec. 22, 2006
Applicant:
Jun Shimoji, Tokyo, JP;
Inventor:
Jun Shimoji, Tokyo, JP;
Assignee:
Canon Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B41J 2/205 (2006.01);
U.S. Cl.
CPC ...
Abstract
The invention obtains superior printing quality even when printing at high speed, thinning the number of multi-pass inkjet printing scans. The inkjet printing apparatus comprises a printhead composed of multiple printing element arrays that are arranged corresponding to ink colors in the main scanning direction, and a unit that makes the printing duty of at least one printing element array vary with regard to the printing duty of other printing element arrays, according to the printing element arrays.