Browse Prior Art Database

End-Of-Form Switch

IP.com Disclosure Number: IPCOM000042057D
Original Publication Date: 1984-Mar-01
Included in the Prior Art Database: 2005-Feb-03
Document File: 2 page(s) / 55K

Publishing Venue

IBM

Related People

Thomas, JD: AUTHOR

Abstract

An easy-to-assemble end-of-form switch is provided by spring contact 10, manufactured integral with planar circuit board 11. As long as paper is present around roll 12, contact 10 will be held in its full line position spaced from steel shaft 13. Shaft 13 is otherwise connected to a signal level voltage as by contact 14. At the end of a form when paper is no longer present around roll 12, contact 10 will move to its dotted line position, contacting shaft 13 to activate end-of-form circuit 15.

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End-Of-Form Switch

An easy-to-assemble end-of-form switch is provided by spring contact 10, manufactured integral with planar circuit board 11. As long as paper is present around roll 12, contact 10 will be held in its full line position spaced from steel shaft 13. Shaft 13 is otherwise connected to a signal level voltage as by contact
14. At the end of a form when paper is no longer present around roll 12, contact 10 will move to its dotted line position, contacting shaft 13 to activate end-of-form circuit 15.

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