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:
Oct. 07, 2014
Filed:
Jun. 29, 2011
Hideji Saikoh, Osaka, JP;
Masayasu Narimatsu, Osaka, JP;
Kiyofumi Morimoto, Osaka, JP;
Kazuma Hinoue, Osaka, JP;
Hideji Saikoh, Osaka, JP;
Masayasu Narimatsu, Osaka, JP;
Kiyofumi Morimoto, Osaka, JP;
Kazuma Hinoue, Osaka, JP;
Sharp Kabushiki Kaisha, Osaka-Shi, JP;
Abstract
Provided are an image forming apparatus that, when a difference between a developing bias in correcting an image density and a reference developing bias has a value not less than a prescribed value that is set preliminarily, replenishes or consumes a toner forcibly, executes correction of the image density again, and controls the developing bias in such a manner that a toner density is controlled to fall within an appropriate range, and an image forming method using the same. When a difference between a developing bias value after correction of the image density and the reference developing bias becomes larger than the prescribed value to the plus side or the minus side, a toner density control portion performs control to consume or replenish a toner forcibly.