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Browse Prior Art Database

MULTI-FEED INDICATOR

IP.com Disclosure Number: IPCOM000027546D
Original Publication Date: 1997-Oct-31
Included in the Prior Art Database: 2004-Apr-08
Document File: 2 page(s) / 48K

Publishing Venue

Xerox Disclosure Journal

Abstract

Disclosed is device and method for detecting and preventing multi-feed or "slug" feed of cut sheet papers in, for example, a top fed stack feeder used in electrophotographic and liquid printing machines. A conventional top stack paper feeder is equipped with a sensor which is adapted for detecting multiple sheet feeds, that is other than a single sheet, from the stack feeder. The sensor is indexed with, for example, a feeder drive wheel and or a stack elevator, wherein multiple feeds can be readily detected by the sensor and which in turn signals the multi-feed condition to system controls to terminate the feed operation and signal an operator that a multi-feed situation exists and its machine location. The device and method effectively prevents multiple feed operations and protects machine components from damage that may arise therefrom.

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XEROX DISCLOSURE JOURNAL

MULTI-FEED INDICATOR

Proposed Gerald M. Devito Classification

U. S. C1.079/000 Int. C1. G03g 21/02

Disclosed is device and method for detecting and preventing multi-feed or "slug" feed of cut sheet papers in, for example, a top fed stack feeder used in electrophotographic and liquid printing machines. A conventional top stack paper feeder is equipped with a sensor which is adapted for detecting multiple sheet feeds, that is other than a single sheet, from the stack feeder. The sensor is indexed with, for example, a feeder drive wheel and or a stack elevator, wherein multiple feeds can be readily detected by the sensor and which in
turn signals the multi-feed condition to system controls to terminate the feed operation and signal an operator that a multi-feed situation exists and its machine location. The device and method effectively prevents multiple feed operations and protects machine components from damage that may arise therefrom.

DP5632

XEROX DISCLOSURE JOURNAL - Vol. 22, No. 5 September/October 1997 229

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230 XEROX DISCLOSURE JOURNAL - Vol. 22, No. 5 September/October 1997

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