Browse Prior Art Database

DAMAGED DOCUMENT RECOVERY

IP.com Disclosure Number: IPCOM000026196D
Original Publication Date: 1990-Oct-31
Included in the Prior Art Database: 2004-Apr-05
Document File: 2 page(s) / 158K

Publishing Venue

Xerox Disclosure Journal

Abstract

In an electronic reprographic system having an image input terminal (IIT) for image scanning and system memory for image storage, it is possible to include an automatic document feeding system with the TIT, so that a set of original documents may be automatically fed to an imaging position of the IIT. For example, a recirculating document handler (RDH) or semi-automatic document handler (SADH) may be used to feed original documents to an imaging platen of the IIT. In addition, the SADH may be used to automatically feed computer fan-fold (CFF) originals to the imaging platen, where successive pages or webs are imaged in seriatim. It is well known that utilization of a document feeung sub-system, introduces the potential for jamming within the feeder, whereby one or more original documents may be damaged to a level which would prohibit further transfer of the damaged documents by the document feeding sub-system.

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XEROX DISCLOSURE JOURNAL

DAMAGED DOCUMENT RE COVE RY

Kurt T. Knodt US. C1.355/308 Gerald L. Coy
Jack F. Gauronski
Herbert J. Raymor
Filomena K. U
David E. Crocker
James R. Graves

Proposed Classification

Int. C1. G03g 21/00

In an electronic reprographic system having an image input terminal (IIT) for image scanning and system memory for image storage, it is possible to include an automatic document feeding system with the TIT, so that a set of original documents may be automatically fed to an imaging position of the IIT. For example, a recirculating document handler (RDH) or semi-automatic document handler (SADH) may be used to feed original documents to an imaging platen of the IIT. In addition, the SADH may be used to automatically feed computer fan-fold (CFF) originals to the imaging platen, where successive pages or webs are imaged in seriatim. It is well known that utilization of a document feeung sub-system, introduces the potential for jamming within the feeder, whereby one or more original documents may be damaged to a level which would prohibit further transfer of the damaged documents by the document feeding sub-system.

A system for document handler jam clearance and job recovery is disclosed in

U.S. Patent No. 4,786,041 to Acquaviva et al. (assigned to Xerox Corporation), wherein the system is capable of determining which documents have been imaged before the jam, thereby facilitating the clearance and recovery of the interrupted job. More specifically, the disclosed system is capable of displaying instructions to the operator for placement of the jammed documents, so as to avoid the manual reordering of all documents that comprise the job prior to restarting. However, the Acquaviva et al. patent does not teach a method for job recovery when one or more of the original documents becomes damaged.

Accordingly, a damaged document recovery method is required for job recovery when the original document is no longer suitable for transfer by the automatic document handling sub-system (i-e., RDH, SADH). Moreover, the electronic reprographic system incorporating the present system may have the capability, via the RDH or manual intervention, to image both sides of the input document, thereby complicating the job recovery process. In general, the electronic reprographic system would have a controller suitable for maintaining the order of the input images, as well as a counter for determining the number of original documents being imaged. When a document misfeed or jam is detected, the operator is first instructed to remove

XEROX DISCLOSURE JOURNAL Vol. 15 No. 5 September/October 1990 339

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DAMAGED DOCUMENT RECOVERY(Cont'...