The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 19, 1981
Filed:
Dec. 21, 1978
Tsutomu Naganuma, Funabashi, JP;
Hisao Hoshi, Tokorozawa, JP;
Hiroji Kumagai, Narashino, JP;
Kaneki Yoshida, Kodaira, JP;
Toppan Printing Co., Ltd., Tokyo, JP;
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.