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:
Jun. 16, 2026

Filed:

Jan. 29, 2025
Applicant:

Canon Kabushiki Kaisha, Tokyo, JP;

Inventor:

Takeshi Aoyagi, Tokyo, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03G 15/043 (2006.01); G03G 15/04 (2006.01);
U.S. Cl.
CPC ...
G03G 15/043 (2013.01); G03G 15/04063 (2013.01); G03G 2215/0412 (2013.01);
Abstract

An exposure apparatus includes a chip with light-emitting elements arranged along an axial direction of a photosensitive member; a generation unit that generates a first synchronization signal synchronized with a second synchronization signal corresponding to a rotation speed of the photosensitive member; and a transmission unit that transmits a data signal to the chip during a line cycle. The second synchronization signal indicates a first or second cycle depending on the rotation speed. The second cycle is N times the first cycle. The first synchronization signal indicates the first cycle regardless of the rotation speed. When the photosensitive member rotates at a slower second rotation speed, the data signal of one line is transmitted to the chip during one of N line cycles; and a non-light-emission signal is transmitted during the remaining cycle(s) of the N line cycles.


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