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:
Nov. 19, 2013
Filed:
Aug. 08, 2011
Katsumi Takahashi, Moriya, JP;
Shinya Suzuki, Toride, JP;
Katsumi Takahashi, Moriya, JP;
Shinya Suzuki, Toride, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
An image forming apparatus includes an image forming unit having an exposure unit configured to irradiate each of a plurality of photosensitive members with a corresponding light beam, a light amount control unit configured to control a light amount of the light beams, a plurality of developing units configured to develop electrostatic latent images formed on the photosensitive members by exposure with the light beams, and a transfer unit configured to transfer toner images formed on the photosensitive members onto an image carrier; a pattern forming unit configured to control the image forming unit to form a misalignment detection pattern for detecting a relative misalignment between the toner images transferred onto the image carrier; a pattern reading unit configured to read the misalignment detection pattern; and a correction unit configured to correct the relative misalignment between the toner images based on the reading result obtained by the pattern reading unit.