Dry planographic printing apparatus

Details Dry planographic printing apparatus Dry planographic printing apparatus

1978-12-21

1981-05-19

Braun, Fred L.

Photocopying

Including fiber optics

355 3DR, G03G 1500

Patent

active

042681588

ABSTRACT:
A dry planographic printing apparatus having a photosensitive plate feed mechanism for feeding a photosensitive plate which includes an electrically conductive support and a photoconductive layer formed on the support, the photoconductive layer includes a resin binder and a photoconductive powder dispersed in the binder. The printing apparatus includes mechanisms for charging the photosensitive plate without irradiation by light and then image-exposing the resultant photosensitive plate, and finally developing by use of a conductive toner and fixing of the conductive toner. The toner is transferred to a sheet of transfer material and is then fixed. A delivery mechanism is provided for delivering the transfer material having the fixed toner, and a plate take-out mechanism is provided for taking out the dry planographic printing plate after a predetermined amount of printing.

REFERENCES:
patent: 3679302 (1972-07-01), Ludwig
patent: 3754820 (1973-08-01), Sheffo et al.
patent: 3795442 (1974-03-01), Kimura et al.
patent: 3839961 (1974-10-01), Murata
patent: 3918971 (1975-11-01), Zweig
patent: 4090108 (1978-05-01), Johnson et al.
patent: 4129376 (1978-12-01), Yotsukura

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