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:
Apr. 24, 2018
Filed:
Jan. 12, 2017
Canon Kabushiki Kaisha, Tokyo, JP;
Ryuichi Araki, Tokyo, JP;
CANON KABUSHIKI KAISHA, Tokyo, JP;
Abstract
An image forming apparatus, including: a deflection unit configured to deflect light beams emitted from light emitting points with a mirror face to form scanning lines in a second direction orthogonal to a first direction in which a photosensitive drum is rotated; a correction unit configured to correct an optical face tangle error of the mirror based on a deviation amount from a distance between the deflection unit and the photosensitive member; a calculation unit configured to calculate a positional deviation amount of the emitting points in the first direction; a transformation unit configured to transform a pixel position of an input image based on the positional deviation amount so that an interval between the scanning lines is a predetermined interval; and a filtering unit configured to obtain a pixel value of an output image based on the transformed pixel position of the input image.