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:
Mar. 03, 2015
Filed:
Aug. 20, 2013
Daisuke Nikaku, Kanagawa, JP;
Daisuke Nikaku, Kanagawa, JP;
Ricoh Company, Limited, Tokyo, JP;
Abstract
An image reading device includes a document reading unit configured to guide light emitted from a light source to a photoelectric conversion unit to read an image on the document; a driving unit configured to drive the document reading unit so that the document reading unit reciprocates along the document; a reading position obtaining unit configured to obtain a home position at which the document reading unit is in a stopped state when starting a read operation; a dark time data obtaining unit configured to obtain dark time output data of the photoelectric conversion unit while the light source is turned off; and a read control unit configured to perform control for causing the driving unit to return the document reading unit to the home position and entering a document read operation to read a document image after the dark time data obtaining unit obtains the dark time output data.