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:
Jan. 25, 2011
Filed:
Apr. 08, 2009
Hiroyuki Horii, Kawasaki, JP;
Hisashi Ishikawa, Urayasu, JP;
Hiroyuki Horii, Kawasaki, JP;
Hisashi Ishikawa, Urayasu, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
An image forming apparatus which forms a halftone image on a print medium () using multipass processing of reciprocally scanning a single area by an inkjet head () a plurality of number of times, forming dots in one of reciprocal scan operations, and moving the inkjet head () to a home position in the other reciprocal scan operation includes a print data generation unit () which generates print data of each print-scan operation, a printer engine () which prints a halftone image on the basis of the print data generated by the print data generation unit (), and a sensor () which detects the state of printing in up to a print-scan operation immediately preceding a print-scan operation of interest. The print data generation unit () corrects print data in synchronism with printing by the printer engine () on the basis of the detected printing state.