Patent · US Expired

Dot-matrix print controller

US4566813A · kind A · utility

11Cited by
1References
6Claims
0Family size

Assignee

Inventors

Key dates

Filing dateSep 26, 1984
Grant dateJan 28, 1986
Priority date
Expiry dateSep 26, 2004

Classification

  • Technology area (CPC B)Performing Operations; Transporting
  • CPC primaryB41J2/355
  • WIPO fieldTextile and paper machines
  • WIPO sectorMechanical engineering

Abstract

A dot-matrix print controller having a dot pattern generating means for generating a dot pattern to be printed and a means for supplying current pulses to a dot-matrix print head in accordance with an output of said dot pattern generating means, said controller comprising a counter means for counting the number of dots of a dot pattern to be printed; and a pulse width control means for controlling the width of said current pulses applied to said print head so that the thickness of print is constant.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.