Color picture image formation device for developing latent image

Details Color picture image formation device for developing latent image Color picture image formation device for developing latent image

1992-03-16

1994-04-12

Braun, Fred L.

Photocopying

Contact printing

Light boxes

355327, G03G 1501, G03G 1514

Patent

active

053030133

ABSTRACT:
A color picture image formation device includes a plurality of photosensitive body drums and a plurality of image formation sections each consisting of a charge unit, an exposure unit and a plurality of developing units for developing toner picture images of various colors and an intermediate transfer body for holding the toner powder images of required number of colors, which transfers the toner picture images to the recording paper and fixes them thereon by a fixing unit after all the toner picture images have been formed on the intermediate transfer body. A transfer voltage is applied by the intermediate transfer body for every developing unit. The intermediate transfer body is a drum formed as a multiple layer structure including a metallic tube, an insulation layer, a metallic conductive electrode which is split into a plurality of sections, and a voltage application layer on the surface of the metallic tube. A transfer roller transfers the toner-picture images onto the recording paper. A voltage application brush which comes into contact with the sections of the metallic conductive electrode applies voltage to the intermediate transfer body.

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