Browse Prior Art Database

PAPER CLAMP

IP.com Disclosure Number: IPCOM000026930D
Original Publication Date: 1994-Jun-30
Included in the Prior Art Database: 2004-Apr-07
Document File: 2 page(s) / 47K

Publishing Venue

Xerox Disclosure Journal

Abstract

A clamping device is proposed to hold down the copy sheets positioned in the retard zone of a paper feeder. When a paper storage drawer is opened on a xerographic machine, the sheets in the retard zone are subjected to a dragging action on the feed belt. As a result, the top sheets are skewed. The clamp is a spring loaded device that holds the sheets against the drawer, to prevent the dragging action, as it moves to the open position. When the drawer is closed, a paper tray elevator releases the clamp at the start of a feed operation. Since the clamp acts only on sheets in the retard zone, paper loading is not affected. The holding force of the clamp is low enough to allow an operator to pull sheets from underneath the clamp during a loading sequence.

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XEROX DISCLOSURE JOURNAL

PAPER CLAMP

Donald E. Johnston Bruce A. Winship Richard C. Benton

Proposed Classification
U.S. C1.355/309 Int. C1. G03g 21/00

A clamping device is proposed to hold down the copy sheets positioned in the retard zone of a paper feeder. When a paper storage drawer is opened on a xerographic machine, the sheets in the retard zone are subjected to a dragging action on the feed belt. As a result, the top sheets are skewed. The clamp is a spring loaded device that holds the sheets against the drawer, to prevent the dragging action, as it moves to the open position. When the drawer is closed, a paper tray elevator releases the clamp at the start of a feed operation. Since the clamp acts only on sheets in the retard zone, paper loading is not affected. The holding force of the clamp is low enough to allow an operator to pull sheets from underneath the clamp during a loading sequence.

XEROX DISCLOSURE JOURNAL - Vol. 19, No. 3 May/June 1994 243

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244 XEROX DISCLOSURE JOURNAL - Vol. 19, No. 3 May/June 1994

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