Photocopying – Contact printing – Light boxes
Patent
1993-06-29
1995-05-16
Royer, William J.
Photocopying
Contact printing
Light boxes
118653, 355245, G03G 1506
Patent
active
054165679
ABSTRACT:
A developing device for developing, by using a developer, a latent image formed on a surface of an image data forming member including a developer accommodating section for accommodating the developer; a first developer retaining member for receiving the developer from the developer accommodating section and transporting the developer; a second developer retaining member for receiving the developer from the first developer retaining member and making the developer adhere to the latent image formed on the image data forming member; a conductive member opposed to the second developer retaining member with an appropriate space interposed therebetween; a first voltage applying member for applying a voltage between the first developer retaining member and the second developer retaining member; a second voltage applying member for applying a voltage between the second developer retaining member and the surface of the image data forming member; and a third voltage applying member for applying a voltage between the second developer retaining member and the conductive member in order to form an electric field in the space therebetween.
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European Search Report.
Fujita Hideaki
Inoue Atsushi
Kamimura Taisuke
Toyoshima Tetsuro
Ueda Tetsuyuki
Conlin David G.
Fournier Kevin J.
O'Connell Robert F.
Royer William J.
Sharp Kabushiki Kaisha
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