Image forming method and image forming apparatus including elect

Details Image forming method and image forming apparatus including elect Image forming method and image forming apparatus including elect

1997-03-11

1999-04-06

Le, N.

Incremental printing of symbolic information

Electric marking apparatus or processes

Electrostatic

347139, B42J 2385, G03G 1304

Patent

active

058925295

ABSTRACT:
An image forming method and an image forming apparatus, wherein a thin film of an electroconductive polymer which holds and releases a dye by means of an electric field enables a construction including a driving circuit, a driving device and an image forming medium to be used for the transfer of an image pattern. The image forming method includes forming a thin film of the electroconductive polymer on an electroconductive substrate, which can take in, hold and release ionic dye molecules in accordance with the change of the state of the electroconductive polymer, that can assume at least two physicochemical states among an oxidized state, a neutral state and a reduced state of the thin film; and bringing the thin film into contact with an image receiving medium. The image receiving medium has suppressed electroconductivity. When a voltage is applied to the thin film holding ionic dye molecules and the image receiving medium between the electroconductive substrate and an image formation controlling electrode, ionic dye molecules are transferred to a localized area, but not to the entire surface, of the image receiving medium.

REFERENCES:
Hiroaki Shinohara et al., "Ion-sieving of Electrosynthesized Polypyrrole Films" J. Chem. Soc., Chem. Commun., pp. 87-88 (1986).
Katsumi Yoshino, "Fundamentals and Applications of Electroconductive Polymers" I.P.C., (1988).
Kazuo Yamashita et al., "Functions and Designs of Electroconductive Organic Films," Surface Science Society of Japan (1988).
Susumn Yoshimura, "Electroconductive Polymers", Polymers Society of Japan (1987).

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