Photocopying – Contact printing – Light boxes
Patent
1993-07-14
1994-04-12
Grimley, A. T.
Photocopying
Contact printing
Light boxes
355296, 355326R, 355327, G03G 1502
Patent
active
053030095
ABSTRACT:
An image forming machine such as a photocopier or a printer for forming a toner image of an original document on a recording sheet. The image forming machine includes a charger for charging a photoreceptor; the photoreceptor, having a surface, for holding a toner image on the surface; a laser beam writer for writing a latent image on the surface of the photoreceptor; a multi-color developer for developing the latent image with a color toner so that a color toner image is formed on the surface in which the color toner image is superimposed for multiple times so that a multi-color toner image is formed on the surface; a mono-color developer for developing the latent image with a monochrome toner so that a monochrome toner image is formed on the surface; a transfer mechanism for transferring one of the multi-color toner image and the monochrome toner image from the surface onto the recording sheet; neutralizer for neutralizing the surface after the transfer mechanism transfers one of the multi-color toner image and the monochrome toner image onto the recording sheet; a cleaner for cleaning a residual toner on the surface after the surface is neutralized by the neutralizer; and a controller for changing a neutralizing voltage of the neutralizer being impressed onto the surface.
REFERENCES:
patent: 4945389 (1990-07-01), Usui et al.
patent: 4949125 (1990-08-01), Yamamoto et al.
patent: 5107285 (1992-04-01), Hamada et al.
patent: 5162859 (1992-11-01), Hirono et al.
patent: 5175584 (1992-12-01), Usui
Grimley A. T.
Konica Corporation
Royer William J.
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