Browse Prior Art Database

SHUTTERED DOCUMENT HANDLER

IP.com Disclosure Number: IPCOM000025474D
Original Publication Date: 1985-Aug-31
Included in the Prior Art Database: 2004-Apr-04
Document File: 2 page(s) / 72K

Publishing Venue

Xerox Disclosure Journal

Abstract

An improved document feed wheel shuttering system for a recirculating or semi-automatic or computer form platen transport, or a document feeder for a l l three modes of operation. An improvement on the wheel shuttering system shown in United States Patent No. 4,485,949, Col. 13, second paragraph, shutter system 44 (Fig. 1).

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KEROX DISCLOSURE JOURNAL

SHUTTERED DOCUMENT HANDLER I Proposed Anthonv Howard C assif ication

US. CI. 355/14SH Int. CI. G03g 15/00

An improved document feed wheel shuttering system for a recirculating or semi- automatic or computer form platen transport, or a document feeder for all three modes of operation. An improvement on the wheel shuttering system shown in United States Patent No. 4,485,949, Col. 13, second paragraph, shutter system 44 (Fig. 1).

Here, all of the on a single plastic member. This member is actuated by a single rotary pin/cam arrangement appropriately clutched to the feed roll drive to reciprocally slide over and close all the wheel wells (apertures) in the platen clamp plate forming the optical imaging background for documents on the platen. With this system, these wheel wells are completely invisible to the copier optics when the document wheels are raised up from the platen into their wheel wells and the shutters are in their closed position. This occurs automatically every time before a document sheet or CF web segment is imaged. While the concept of document feed wheel retraction and shuttering per se during imaging is known, per the above, disclosed here are additional features which make the shuttering much more "light tight" to completely preclude print/through of shadows from gaps around the wheel well edges. Those include a raised lip or seal on the inside (back) of the clamp plate around each wheel well opening, against which each s...