Photocopying – Contact printing – Light boxes
Patent
1991-01-22
1992-08-25
Grimley, A. T.
Photocopying
Contact printing
Light boxes
118656, 355245, 355251, 428447, 430120, G03G 1508
Patent
active
051423308
ABSTRACT:
A development unit comprising a development roller for developing a latent electrostatic image formed on an electrophotographic photoconductor to a visible toner image by applying a non-magnetic one-component type toner thereto, and a toner layer thickness regulation member for forming a toner layer on the above development roller, which toner layer thickness regulation member comprises at least (a) a rubber-like fluorosilicone polymer including repeat units of formula (I), (b) a silicone polymer comprising a copolymer of dimethyl silicone and methyl vinyl silicone with a crosslinking density of 4.times.10.sup.-4 to 8.times.10.sup.-4 mol/cc, and (c) an alkylene-oxide-addition type fluorine-containing surface active agent: ##STR1## wherein n is 1,000 to 600,000.
REFERENCES:
patent: 3942474 (1976-03-01), Smith et al.
patent: 3969308 (1976-07-01), Penneck
patent: 4423132 (1983-12-01), Kondo et al.
patent: 4760422 (1988-07-01), Seimiya et al.
patent: 4833058 (1989-05-01), Hirano et al.
patent: 4948845 (1990-08-01), Gagnon et al.
patent: 4958197 (1990-09-01), Kinashi et al.
Aoto Jun
Hirano Yasuo
Dang Thu
Grimley A. T.
Ricoh & Company, Ltd.
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