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Print Head Speed and Stopping Distance Specification for Voltage-Driven Motor Control Systems

IP.com Disclosure Number: IPCOM000062415D
Original Publication Date: 1986-Nov-01
Included in the Prior Art Database: 2005-Mar-09

Publishing Venue

IBM

Related People

Authors:
Cavill, BR Malkemes, CD [+details]

Abstract

A technique is described whereby the operational speed of a matrix print head is optimized at specified dot densities, based on the distance traveled by the print head. Also, the stopping distance overtravel is minimized while providing precise print positioning of the head. The concept described herein selects the optimum motor speed to print a line, based on the length of the line to be printed. A maximum motor speed, based on the distance of head movement, is selected to advance the head rapidly during non-printing operations. A microprocessor circuit is used to calculate the stopping distance from various speeds. During printing, the stopping distance is calculated and controlled, so as to optimize printing throughput.