Browse Prior Art Database

Triple Function Optical Sensor Switch

IP.com Disclosure Number: IPCOM000058992D
Original Publication Date: 1988-Mar-01
Included in the Prior Art Database: 2005-Feb-15

Publishing Venue

IBM

Related People

Authors:
Kindler, T Robb, MA Seevers, KD [+details]

Abstract

A single optical sensor switch detects when a carrier of a typewriter or printer is at its home position, detects when a printhead supported on the carrier for movement therewith is in its print position, and prevents printing when the printhead is not in its print or correction position.