Toning apparatus and method

Details Toning apparatus and method Toning apparatus and method

1981-12-09

1983-10-18

Moses, R. L.

Photocopying

Projection printing and copying cameras

Combined with or convertible to a contact printer

118661, 355 3BE, 355 77, 430117, G03G 1510, G03B 2732

Patent

active

044102607

ABSTRACT:
An apparatus and method for making copies of an original pattern through the use of electrostatic techniques in which there is a looped belt having an exterior photoconductive layer. The bottom reach of the belt is charged and imaged by the projected pattern in darkness to acquire a latent image progressively as the belt moves in one direction. The belt passes a toning station where a toning roller dipping into a sump picks up toner and rolls the toner onto the latent image to develop the same as the belt passes through the station. The roller protrudes into the belt loop past the plane of the bottom reach thereby requiring the belt to be wrapped around a peripheral segment of the toning roller, giving several advantages. After toning the developed image passes around to the upper belt reach and is transferred by pressure to a carrier medium at the end of the upper reach.

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