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Low Inertia Impact Printer Print Wheel

IP.com Disclosure Number: IPCOM000067622D
Original Publication Date: 1979-Sep-01
Included in the Prior Art Database: 2005-Feb-20

Publishing Venue

IBM

Related People

Authors:
Alexander, JM Chalco, PA [+details]

Abstract

In impact printers using a daisy wheel type of print wheel, the art is constantly seeking relatively low weight wheels so that the inertia may be minimized. The present structure provides a low inertia wheel through the formation of the print character out of a porous metal, such as a pressed powdered metal or a pressed metal mesh. Such pressed metal print characters would have a significant number of air spaces which would substantially lighten the character and thereby reduce inertia. Through the use of metallic characters which are relatively light, print wheel life would be increased while relatively low inertia of available plastic character wheels would be maintained. In accordance with one embodiment, a low density metallic powder, such as aluminum or magnesium and mixtures thereof, is used.