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:
Aug. 25, 1992
Filed:
Aug. 12, 1991
Kenjiro Murakami, Nagano, JP;
Keiichi Ohshima, Nagano, JP;
Seiko Epson Corporation, Tokyo, JP;
Abstract
A sheet feeding mechanism for a printing apparatus capable of achieving accurate sheet feed performance free from slanted sheet feeding, dislocation between pages in printing on copy sheets, out-of-pitch printing, and the like. The sheet feeding mechanism includes a pair of confronting roller units capable not only of applying a driving-like sheet feed force to both front and back surfaces of a copy sheet, but also of maintaining a constant pressure contact force from each roller. The shafts of the pair of confronting roller units are driven so that the sheet feed force is stable. The pressure contact force is produced by a structure wherein each roller is biased by independent loading.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile