Photocopying – Contact printing – Light boxes
Patent
1993-07-30
1995-02-28
Grimley, A. T.
Photocopying
Contact printing
Light boxes
430 45, 430120, 503201, G03G 1501
Patent
active
053942310
ABSTRACT:
An image forming apparatus capable of forming both of erasable images and images to be stored, and increasing the number of times that a single sheet with an image can be repetitively decolorized and reused. The apparatus includes a photoconductive element for electrostatically forming a latent image representative of image data. A developing device develops the latent image formed on the photoconductive element by either of an ordinary undecolorizable toner and a decolorizable toner.
REFERENCES:
patent: 4532200 (1985-07-01), Arney et al.
patent: 4599630 (1986-07-01), Ohtaki et al.
patent: 4620204 (1986-10-01), Inaba et al.
patent: 4734735 (1988-03-01), Haneda
patent: 5045420 (1991-09-01), Hosono et al.
patent: 5234783 (1993-08-01), Ng
patent: 5296439 (1994-03-01), Maruyama et al.
Imai Chikara
Sohmiya Norimasa
Sudo Kazuhisa
Suzuki Koji
Takahashi Sadao
Dang T. A.
Grimley A. T.
Ricoh & Company, Ltd.
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