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. 28, 1995
Filed:
Nov. 29, 1993
Sharp Kabushiki Kaisha, Osaka, JP;
Abstract
A paper feeder for use in copiers has a feed roller, a conveying roller and a registration roller. The apparatus further includes a feeding-conveying drive section for driving the conveying roller in synchronization with the rotation of the feed roller, and a conveying-registration drive section for driving the conveying roller in synchronization with the rotation of the registration roller. By this structure, the peripheral velocity of the rollers when the feed roller and conveying roller rotate can be set up higher than the peripheral velocity of the rollers when the registration roller and conveying roller rotate. An alternative construction of the apparatus includes a feeding-conveying drive section in which the conveying roller is driven through the conveying roller gear and conveying roller clutch and a conveying-registration drive section in which the conveying roller is driven through a pulley disposed on the rotary shaft of the registration roller, a timing belt and a clutch-equipped pulley disposed on the rotary shaft of the conveying roller. In this construction, the conveying roller is made to be able to be driven either by the feeding-conveying drive section or by the conveying-registration drive section.