Browse Prior Art Database

Enhanced Performance for Dot Matrix Printer

IP.com Disclosure Number: IPCOM000063257D
Original Publication Date: 1985-Mar-01
Included in the Prior Art Database: 2005-Feb-18

Publishing Venue

IBM

Related People

Authors:
Peck, R [+details]

Abstract

An arrangement is disclosed for increasing the throughput of a dot matrix printer when printing special graphic characters. Dot matrix printers are used extensively to provide hard copy output for personal computers. In these printers a print head is moved horizontally to print one line of information, and the paper is stepped vertically a predetermined amount to print the next line. A character position may therefore be defined by a matrix of dots which is Y dots high and X dots wide. In many printers the matrix is 9 dots high and 7 dots wide with the center to center spacing of the dots being 1/72 of an inch.