Photocopying – Contact printing – Light boxes
Patent
1993-09-22
1995-04-04
Braun, Fred L.
Photocopying
Contact printing
Light boxes
118661, G03G 1506
Patent
active
054042119
ABSTRACT:
A developing roller is opposed to a photosensitive drum on which a latent image is carried, and developer supplied to the latent image is held and fed by the developing roller. Developer is supplied from a feeding roller to the developing roller. A thickness defining blade is pressed against the feeding roller to press the feeding roller against the developing roller and form a developer layer of certain thickness on the feeding roller. A developing device thus arranged enables developer to be electrically charged without adding any stress to the developer, and a developer layer of certain thickness to be formed.
REFERENCES:
patent: 4835565 (1989-03-01), Nagatsuna et al.
patent: 4958193 (1990-09-01), Nojima et al.
patent: 5097294 (1992-03-01), Nishio et al.
patent: 5168312 (1992-12-01), Aoto et al.
patent: 5223668 (1993-06-01), Takaya et al.
Chikara Imai, "Single-Component Contact Development", Magazine Issued by the Society of Electrophotography of Japan, Imaging Technology Research Center, vol. 3, No. 2, pp. 183-193, (1991).
Masahiro Hosoya et al., "Contact-Type Development System Using Monocomponent Nonmagnetic Toner", Japan Hardcopy 89, Proceedings of the annual conference of Japan Hardcopy for the Society of Electrophotography of Japan, pp. 25-28, (1989).
Hashimoto Yoshiya
Izumi Takao
Kasai Toshihiro
Seto Shoko
Takagi Osamu
Braun Fred L.
Kabushiki Kaisha Toshiba
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