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.

Date of Patent:
Apr. 30, 2024

Filed:

Jan. 25, 2023
Applicant:

Canon Kabushiki Kaisha, Tokyo, JP;

Inventors:

Go Araki, Shizuoka, JP;

Mitsuhiro Obara, Shizuoka, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04N 1/405 (2006.01); G03G 15/043 (2006.01); H04N 1/29 (2006.01); H04N 1/52 (2006.01); H04N 1/053 (2006.01); H04N 1/193 (2006.01);
U.S. Cl.
CPC ...
H04N 1/4052 (2013.01); G03G 15/043 (2013.01); H04N 1/295 (2013.01); H04N 1/52 (2013.01); H04N 1/053 (2013.01); H04N 1/1933 (2013.01);
Abstract

An image forming apparatus includes: a scanning unit configured to form an electrostatic latent image on a photoconductor by scanning the photoconductor with one or more scanning beams in a main scanning direction based on an image signal, repetitively in a sub-scanning direction perpendicular to the main scanning direction; a generating unit configured to perform halftone processing on image data to generate the image signal; and a storage unit configured to store correction information. The correction information is set such that start positions of a plurality of scanning lines are linearly displaced to either a negative side or a positive side of the main scanning direction along the sub-scanning direction, in accordance with a direction of a first vector forming a smaller angle with the sub-scanning direction among two vectors in the halftone processing.


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