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Dot Matrix Printing with a Controlled Rotatable Wire

IP.com Disclosure Number: IPCOM000052845D
Original Publication Date: 1981-Jul-01
Included in the Prior Art Database: 2005-Feb-11

Publishing Venue

IBM

Related People

Authors:
Sheiner, LS [+details]

Abstract

Elimination of the interdot white space usually found in matrix printed characters, without increasing the number of ""dots'' used, is described using a reduced number of actuators. Wire matrix printing is usually accomplished with several round wires that are caused to impact a ribbon and transfer one or more dots of ink to the paper. These wires are arranged vertically and moved horizontally. This machine configuration produces a potentially available dot matrix from which characters can be constructed. The throughput of a matrix printer equals the number of print cycles occurring within a given time period. The print cycle is composed of the horizontal head motion time and the turnaround time. The maximum head velocity is limited to the largest acceptable horizontal distance between dots fired by one actuator.