Patent · US Expired

Printing apparatus

US4372695A · kind A · utility

32Cited by
12References
5Claims
0Family size

Inventor

Key dates

Filing dateJul 10, 1980
Grant dateFeb 8, 1983
Priority date—
Expiry dateJul 10, 2000

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY10S101/37
  • WIPO fieldOptics
  • WIPO sectorInstruments

Abstract

A print head in which an electrostatic character image is formed on a print drum by direct contact with electrodes, developed and printed out all within the same revolution of the drum. The characters are generated electronically using a keyboard or data terminal. The drum may be made small and the print head take the form of a hand-held printer. While retaining its small diameter the drum may be extended axially to form a line printer.

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