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:
Jul. 05, 2022
Filed:
Jan. 05, 2021
Daisuke Nikaku, Kanagawa, JP;
Tatsuya Ishii, Kanagawa, JP;
Hideki Hashimoto, Tokyo, JP;
Yutaka Ohmiya, Tokyo, JP;
Takayuki Kawamoto, Tokyo, JP;
Daisuke Nikaku, Kanagawa, JP;
Tatsuya Ishii, Kanagawa, JP;
Hideki Hashimoto, Tokyo, JP;
Yutaka Ohmiya, Tokyo, JP;
Takayuki Kawamoto, Tokyo, JP;
RICOH COMPANY, LTD., Tokyo, JP;
Abstract
An image reading device includes a light source configured to irradiate a subject; a reading unit configured to detect reflected light generated by a subject reflecting light emitted from the light source, to perform reading; and a control unit configured to perform turn-on control on the light source. The control unit is configured to perform the turn-on control to change a turn-on condition such that the light source is turned on during a period when at least a detection region including an image pattern on the subject passes through a reading position of a reading unit, based on position information of the image pattern of the subject in a first operation mode for reading the subject, and perform the turn-on control to make the turn-on condition of the light source constant regardless of the image pattern of the subject in a second operation mode for reading the subject.