Dry planographic printing apparatus
US4268158A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 21, 1978 |
| Grant date | May 19, 1981 |
| Priority date | — |
| Expiry date | Dec 21, 1998 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G15/228
- WIPO fieldOptics
- WIPO sectorInstruments
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.