Photocopying – Contact printing – Light boxes
Patent
1989-02-15
1989-10-24
Grimley, A. T.
Photocopying
Contact printing
Light boxes
118621, 118650, 355247, 355261, 430120, G03G 1508, G03G 1506, B05B 502, B05C 502
Patent
active
048765732
ABSTRACT:
A developing method using non-magnetic, one-component toner, characterized in that the non-magnetic, one-component toner charged either positively or negatively is retained in cloud-like state in a space facing a photoreceptor drum surface with an electrostatic latent image formed thereon and that an alternating electric field is applied to the zone between the space and the photoreceptor drum surface to cause toner particles to fly about, thus developing the latent image.
REFERENCES:
patent: 4478505 (1984-10-01), Tashiro
patent: 4493550 (1985-01-01), Takekida
patent: 4557992 (1985-12-01), Haneda
Grimley A. T.
Pipala Edward J.
Sharp Kabushiki Kaisha
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