Method and apparatus of electrostatic recording

Details Method and apparatus of electrostatic recording Method and apparatus of electrostatic recording

1982-07-16

1984-05-08

Tarcza, Thomas H.

Recorders

Electric recording

Electrochemical

G01D 1506

Patent

active

044478216

ABSTRACT:
A method and apparatus for forming an electrostatic latent image free of phantoms is provided. A recording medium is first uniformly charged and the charges are selectively dissipated by the recording unit including a plurality of styluses to which a recording potential is selectively applied and auxiliary electrodes to which an auxiliary potential is applied to form an electrostatic latent image on the medium. The present invention is characterized by applying a bias potential, preferably equal to or substantially equal to the surface potential of the charged medium, to the styluses and auxiliary electrodes thereby allowing to prevent unwanted recording from occurring.

REFERENCES:
patent: 4297715 (1981-10-01), Tadauchi et al.

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