Image forming method including an additional exposing step

Details Image forming method including an additional exposing step Image forming method including an additional exposing step

1992-05-26

1993-11-09

Grimley, A. T.

Photocopying

Contact printing

Light boxes

355271, 355326R, 430 42, 430 48, G03G 1514

Patent

active

052607526

ABSTRACT:
An image forming method in which toner images are registered onto an image retainer by conducting sequentially a cycle of charging, imagewise exposing and developing by the method of reversal development not less than twice. The imagewise exposing, based on all image data which have formed latent images is performed again only on the toner image portion after all the developing steps have been completed, then the toner images are transferred onto a transfer sheet at one time.

REFERENCES:
patent: 4443095 (1984-04-01), Tsushima et al.
patent: 4515462 (1985-05-01), Yoneda
patent: 4557992 (1985-10-01), Haneda et al.
patent: 4599285 (1986-07-01), Haneda et al.
patent: 4839692 (1989-06-01), Shoji et al.
patent: 4853736 (1989-08-01), Goto et al.
patent: 5089847 (1992-02-01), Folkins
patent: 5126795 (1992-06-01), Maruyama et al.
Patent Abstracts of Japan vol. 12, No. 313 (P-749) Aug. 25, 1988 & JP-A-63 081 378 (Ricoh Co.) Apr. 12, 1988 *abstract*.

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