Photocopying – Contact printing – Light boxes
Patent
1992-07-10
1994-03-01
Grimley, A. T.
Photocopying
Contact printing
Light boxes
3461601, 355200, 355211, 355 27, 355277, 355282, 355285, 355290, G03G 1500, G03G 1300
Patent
active
052912469
ABSTRACT:
An electrophotographic printing machine is provided with a photoreceptor drum including a cylindrical transparent support having a transparent electrically conductive layer and a photoconductive layer laminated on a surface thereof and a dielectric belt having wound around the photoreceptor drum. A toner image is formed on a surface of a dielectric belt through a process of exposing the photoconductive layer by applying voltage across the toner to be applied to the surface of the dielectric belt and the transparent electrically conductive layer. Then, the toner image is transported up to a position apart from the photoreceptor drum where a copying material is superposed onto the toner image so as to apply heat and pressure thereto, whereby transfer and fusing processes of the toner image are carried out simultaneously to the copying material. As a result, a turbulence in the toner image is reduced, thereby providing high quality images.
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Journal of Applied Physics, vol. 63, No. 11, American Institute of Physics, Jun. 1, 1988, pp. 5589-5593 (Tetsutani and Hoshino authors).
Nikkei Electronics, Apr. 18, 1988.
Conlin David G.
Grimley A. T.
Neuner George W.
Sharp Kabushiki Kaisha
Smith Matthew S.
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