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A PURELY MECHANICAL METHOD TO DETECT AND VISUALLY DISPLAY THAT PAPER IS JAMMED IN AN AREA

IP.com Disclosure Number: IPCOM000027520D
Original Publication Date: 1997-Aug-31
Included in the Prior Art Database: 2004-Apr-08
Document File: 2 page(s) / 82K

Publishing Venue

Xerox Disclosure Journal

Abstract

It is well known in reproduction apparatus to provide electrical sheet sensors spaced at various positions along the machine's paper path, wired to the machine controller, to actuate a Graphical User Interface (GUI) display as to jammed sheets locations and/or display lights within the machine at the positions requiring jam clearances. However, such electrical (usually electro-optical) sensors can have paper lint contamination problems and both they and display lights are relatively expensive and require installation of a relatively expensive wiring harness to and from all the possible sheet jam locations along a paper path.

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XEROX DISCLOSURE JOURNAL

A PURELY MECHANICAL METHOD TO DETECT AND VISUALLY DISPLAY THAT PAPER IS JAMMED IN AN AREA
Charles E. Smith

Proposed Classification
U. S. C1. 271,399/361 Int. C1. B65h

It is well known in reproduction apparatus to provide electrical sheet sensors spaced at various positions along the machine's paper path, wired to the machine controller, to actuate a Graphical User Interface (GUI) display as to jammed sheets locations and/or display lights within the machine at the positions requiring jam clearances. However, such electrical (usually electro-optical) sensors can have paper lint contamination problems and both they and display lights are relatively expensive and require installation of a relatively expensive wiring harness to and from all the possible sheet jam locations along a paper path.

Suggested here is a simply purely mechanical set of small lightweight plastic paper path jam indicator flags pivotally mounted at desired positions along the machine's paper path, each with an actuating lever arm extending into the paper path through slots in the baffles defining the paper path. A brightly colored flag or arm member is held up above the paper path by a jammed paper sheet being present under that flag which is holding up the lever arm for that flag. Those flags which are overlying jammed paper sheets thus become visible, at least when the machine is opened, to show the operator where jammed paper sheets need to be removed.

The flags can a...