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:
Aug. 17, 2010
Filed:
Apr. 11, 2005
Mitsuharu Takizawa, Kunitachi, JP;
Tatsuya Fukushima, Kawasaki, JP;
Mitsuharu Takizawa, Kunitachi, JP;
Tatsuya Fukushima, Kawasaki, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
The present invention provides complementary recording in that when a defective nozzle is generated, recording is performed by other normal nozzles. According to the present invention, a mask pattern used for multipath recording, which completes an image by multiple scannings with a recording head, is rewritten when a defective nozzle is generated. Rewriting mask data is produced in a CPU register, and the mask pattern is rewritten by repeating the produced mask data. According to the present invention, it is not necessary to prepare mask data by assuming a defective nozzle in advance, so that high speed complementary recording processing can be performed with simple configuration.