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Title: A-C charged electrostatic recording process

Abstract: In the electrostatic recording process comprising relatively scanning a recording electrode on an electrostatic recording material which is electrically connected between said recording electrode and a counter electrode, applying a high frequency alternating current or asymmetric alternating recording signal formed by amplifying and modulating an image signal by a high frequency carrier wave between said two electrodes to form an electrostatic image on the electrostatic recording material, developing the so formed electrostatic image with a developer and, if desired, fixing the developed image, when a specific dielectric layer is selected to the kind of the recording signal and the electrostatic image formed on the dielectric layer is developed with an electroconductive powdery developer containing a fine powder of a magnetic material, high quality recorded images free of such problems as blurring, tailing, fogging and Moire can be obtained a high recording efficiency.


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Inventors: Miyakawa, Nobuhiro (Kobe, JP)
Yamaguchi, Takashi (Yokohama, JP)
Inoue, Eiichi (Tokyo, JP)

Application Number: 845215
Filing Date: 1977-10-25
Publication_date: 1979-04-17
Assignee: Mita Industrial Company Ltd. (Osaka, JP)
Primary Class(es): 347/112 347/158
Other Classes:
US Patent Ref:
2918608Dec, 1959Rieth346/165.
3434878Mar, 1969Reis346/165.
3713996Jan, 1973Letter346/165.
3778841Dec, 1973Gundlach346/153.
3974041Aug, 1976Haruta346/165.

Other Refs:
Primary Examiner: Lucas, Jay P.
Assistant Examiner:
Attorney: Sherman and Shalloway