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Browse Prior Art Database

Photoconductor Welding

IP.com Disclosure Number: IPCOM000041460D
Original Publication Date: 1984-Jan-01
Included in the Prior Art Database: 2005-Feb-02
Document File: 2 page(s) / 24K

Publishing Venue

IBM

Related People

Josephson, PJ: AUTHOR

Abstract

A length of flexible xerographic photoconductor web is formed into an endless web by subjecting the web ends to ultrasonic energy, with the ultrasonic horn being placed against the substrate side of the web. The two ends of web 10 are overlapped, with photoconductor side 11 facing large, stationary metal anvil 12. Ultrasonic horn tip 13 is about 0.50 inch wide (the dimension perpendicular to the figure), and about 0.06 inch as measured in the longitudinal direction of the belt which is to be formed from web 10. It is essential that all upper corners of horn 13 have a radius, for example, 0.02 inch, such that welding energy is not line-concentrated on substrate 14. Substrate 14 is a polyester film, such as MYLAR*, about 0.003 inch thick. Photoconductor layer 11 is about 0.001 inch thick.

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Photoconductor Welding

A length of flexible xerographic photoconductor web is formed into an endless web by subjecting the web ends to ultrasonic energy, with the ultrasonic horn being placed against the substrate side of the web. The two ends of web 10 are overlapped, with photoconductor side 11 facing large, stationary metal anvil 12. Ultrasonic horn tip 13 is about 0.50 inch wide (the dimension perpendicular to the figure), and about 0.06 inch as measured in the longitudinal direction of the belt which is to be formed from web 10. It is essential that all upper corners of horn 13 have a radius, for example, 0.02 inch, such that welding energy is not line- concentrated on substrate 14. Substrate 14 is a polyester film, such as MYLAR*, about 0.003 inch thick. Photoconductor layer 11 is about 0.001 inch thick. Horn 13 is placed against substrate 14 with a force of about five pounds, and is run back and forth (the direction perpendicular to the figure) at a rate of about 0.02 inch per second. The resulting lap-joint is relatively smooth on the upper, working side of the belt, since the photoconductor layer 15 immediately above horn 13 flows out from under the upper substrate layer, and fills-in step 16. During subsequent use of the belt photoconductor, in a xerographic reproduction device, passage of the lap-joint through a magnetic brush developer does not tend to undesirably drag carrier beads out of the developer, and the developer seals are not subjected to ex...