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Accurate Positioning Control of DC Motor Driven Printer Carrier

IP.com Disclosure Number: IPCOM000055249D
Original Publication Date: 1980-Jun-01
Included in the Prior Art Database: 2005-Feb-13

Publishing Venue

IBM

Related People

Authors:
Aldrich, CS [+details]

Abstract

In most present typewriters, the print head is supported by a carrier moved along the platen from one character printing position to the next. A good quality printing is therefore dependent upon proper positioning of the carrier, and this could be improved by using a detent shaft controlled by a magnet directly driven from the motor drive circuits.