Patent · US Expired

Dot writing head for high definition printers, and a method of manufacturing the same

US4385306A · kind A · utility

3Cited by
5References
6Claims
0Family size

Assignee

Inventor

Key dates

Filing dateJul 7, 1980
Grant dateMay 24, 1983
Priority date
Expiry dateJul 7, 2000

Classification

  • Technology area (CPC B)Performing Operations; Transporting
  • CPC primaryB41J2/395
  • WIPO fieldTextile and paper machines
  • WIPO sectorMechanical engineering

Abstract

The head is composed of a series of electrically conductive elements in one or more rows, which elements are selectively subjected to a high potential relative to the coacting electrode. The elements have a thickness of less than to 50.mu. and a pitch less than 100.mu.. The elements may be disposed in a plurality of rows on a cylindrical, rotatable head. In a modified embodiment the elements are disposed on the edge of a plate, in a row extending over the length of the line.

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