Photocopying – Contact printing – Light boxes
Patent
1989-04-06
1990-11-27
Grimley, A. T.
Photocopying
Contact printing
Light boxes
118661, 355245, G03G 1506
Patent
active
049740288
ABSTRACT:
A developing device developes an electrostatic latent image formed on a rotatable electrostatic latent image support member. The developing device includes a rotatable first toner transport member in contact with an electrostatic latent image support member and a rotatable second toner transport member in contact with an electrostatic latent image support member. Toner layers are formed on the peripheral surface of the first toner transport member and the second toner transport member. The electric conductivity of the first toner transport member is different from that of the second toner transport member.
REFERENCES:
patent: 4100884 (1978-07-01), Mochizuki et al.
patent: 4265197 (1981-05-01), Toyono et al.
patent: 4282827 (1981-08-01), Andrews
patent: 4791882 (1988-12-01), Enoguchi et al.
patent: 4804995 (1989-02-01), Osawa et al.
Enoguchi Yuji
Mizuno Hiroshi
Natsuhara Toshiya
Yamamoto Masashi
Grimley A. T.
Hoffman Sandra L.
Minolta Camera Kabushiki Kaisha
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