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. 03, 2001
Filed:
Dec. 13, 1999
Takashi Taruki, Kanagawa, JP;
Ricoh Company, Ltd., Tokyo, JP;
Abstract
An ADF (Automatic Document Feeder) for an image forming apparatus includes a drive roller and a driven roller constituting document send-out means located downstream of a contact glass for sending out a document. The driven roller is movable into and out of contact with the drive roller. The driven roller is spaced from the drive roller when a document sensor does not sense the arrival of the leading edge of the document at the document send-out means. When the document sensor senses the leading edge of the document, the driven roller is moved toward the drive roller in order to convey the document in cooperation with the drive roller. The ADF insures accurate reading of the document without varying the document conveying speed at an image reading position.