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TRANSPARENCIES BY USE OF IMPROVED JAM DETECTION OF NON-VISIBLE WAVELENGTH DYES

IP.com Disclosure Number: IPCOM000026478D
Original Publication Date: 1992-Apr-30
Included in the Prior Art Database: 2004-Apr-05
Document File: 2 page(s) / 56K

Publishing Venue

Xerox Disclosure Journal

Abstract

Improved jam detection of transparencies in a copier or printing machine is achieved by incorporating non-visible wavelength dyes on or in the transparency sheet stock. Conventional unmarked or untreated transparencies are dif'ficult to detect because typical sensor technology is adapted for detecting opaque paper copy sheets.

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XEROX DISCLOSURE JOURNAL

IMPROVED JAM DETECTION OF

NON-VISIBLE WAVELENGTH Int. C1. G03g 21/00 DYES
Yon K. Simpson
Robert J. Flanagan
David C. Irving
Richard W. Herzog
Chistopher G. Donnelly
Chi-Chang Lu
Kathleen M. Carmichael

                             Proposed Classification TRANSPARENCIES BY USE OF U.S. ci. 3551308

Improved jam detection of transparencies in a copier or printing machine is achieved by incorporating non-visible wavelength dyes on or in the transparency sheet stock.

Conventional unmarked or untreated transparencies are dif'ficult to detect because typical sensor technology is adapted for detecting opaque paper copy sheets.

Non-visible dye treated transparencies consist of ultraviolet or infrared sensitive dyes that are coated on or soluble in conventional transparency sheet material. During machine operation with a dye treated transparency, wavelength detectors and an appropriate radiation source are located in strategic areas of the machine to detect transparency jams. When a jam occurs the detectors detect and identify the location where the jam has occurred. The operator is signaled by an appropriate panel display.

XEROX DISCLOSURE JOURNAL - Vol. 17, No. 2 MarcWAprill992 99

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100 XEROX DISCLOSURE JOURNAL - Vol. 17, No. 2 MarcWAprill992

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