Browse Prior Art Database

Retracting Optical Transmissive Ribbon Position Sensor

IP.com Disclosure Number: IPCOM000036783D
Original Publication Date: 1989-Oct-01
Included in the Prior Art Database: 2005-Jan-29

Publishing Venue

IBM

Related People

Authors:
Lansing, SG Sickenius, LS Stone, LA [+details]

Abstract

This article describes a means for detecting printer ribbon presence or printer ribbon edge position using a light-emitting diode (LED) and a retracting photo-detection device that are located on opposite sides of the ribbon.