Study on Wear of Print Wire for Wire Matrix Printer

Abstract

This study is carried out to investigate the wear mechanism of print wire and the criterion for the material selection of print wire. The results obtained are summarized as follows: (1) The wear of print wire is caused mainly by the abrasive action of carbon black particles included in ink ribbon. (2) The print wires of high hardness have high resistance to wear. (3) The print face corner of wire is rounded slightly by the effect of high contact pressure as compared with the central portion.