Ink jet recording apparatus with an electrode disposed at writin

Details Ink jet recording apparatus with an electrode disposed at writin Ink jet recording apparatus with an electrode disposed at writin

1987-11-06

1989-05-09

Hartary, Joseph W.

Recorders

Markers and/or driving means therefor

With ink supply to marker

G01D 1516

Patent

active

048293253

ABSTRACT:
An ink jet recording apparatus with an ink jet printing head is disclosed. The ink jet printing head has first and second electrodes for ejecting ink toward writing paper by means of an electric field established between the first and second electrodes, the first electrode being disposed in opposed relation to the writing paper. The writing paper is placed on a cylindrical drum which is provided so as to be in opposed relation to the ink jet printing head and moved with respect to the ink jet printing head. Also included in the ink jet recording apparatus is a third electrode which is provided on the outer surface of the cylindrical drum in opposed relation to the ink jet printing head. The third electrode is controlled so that the potential thereof is equal to or higher than that of the ink jet printing head.

REFERENCES:
patent: 3673601 (1972-06-01), Hertz
patent: 3981020 (1976-09-01), Takano
patent: 4223322 (1980-09-01), Raamsdonk
patent: 4403234 (1983-09-01), Miura
patent: 4595938 (1986-06-01), Conta
patent: 4668959 (1987-05-01), Jochimsen

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