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:
Feb. 08, 2000
Filed:
Mar. 12, 1998
A Justine Worley, Murrieta, CA (US);
Hewlett-Packard Company, Palo Alto, CA (US);
Abstract
An automatic document feeder is constructed of three chassis. A main chassis carries the active components, such as paper pick and drive mechanisms for sequentially picking and delivering said sheets to and from a flat bed scanner, motors, and transmissions for driving said paper pick and drive mechanisms, a document backing assembly, and electronic controller equipment. Moreover, the main chassis provides a document input tray. A lower chassis forms a low height form factor output tray, using paper stiffness caused by predetermined bending to register the document sheets without having to support the full length thereof. When assembled with an upper chassis, the three chassis provide the entire paper path. The lower chassis carries an attachment hinge mechanism for mounting the automatic document feeder appropriately to a flat bed scanner apparatus. The paper loading and unloading drive mechanism provides a balance normal force from a plurality of paper drive rollers. The paper loading and unloading drive mechanism is used to lift the document backing assembly from the flat bed scanner during loading and unloading of document sheets.