Photocopying – Contact printing – Light boxes
Patent
1990-10-12
1992-12-01
Grimley, A. T.
Photocopying
Contact printing
Light boxes
355245, 355251, 355265, G03G 1508
Patent
active
051683121
ABSTRACT:
A development unit including (i) a latent-electrostatic-image-bearable member, (ii) a development member for supporting a toner thereon and developing latent electrostatic images formed on the latent-electrostatic-image-bearable member into visible toner images with the toner, and (iii) a toner layer regulating member for regulating the thickness of a toner layer formed on the development member, wherein at least the development member or toner layer regulating member has an overcoat layer including a resin and a surface active agent.
REFERENCES:
patent: 4445771 (1984-05-01), Sakamoto et al.
patent: 4760422 (1988-07-01), Seimiya et al.
patent: 4958197 (1990-09-01), Kinashi et al.
patent: 5017967 (1991-05-01), Koga
Aoto Jun
Hirano Yasuo
Dang Thu A.
Grimley A. T.
Ricoh & Company, Ltd.
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