PRINTING PRESS USING CHARGE RETAINING MEDIUM, ITS MANUFACTURING METHOD AND STRIPPING SYSTEM USING CHARGE RETAINING MEDIUM

Title:

PRINTING PRESS USING CHARGE RETAINING MEDIUM, ITS MANUFACTURING METHOD AND STRIPPING SYSTEM USING CHARGE RETAINING MEDIUM

Document Type and Number:

WIPO Patent Application WO/1991/004518

Kind Code:

A1

Abstract:

A photoconductive layer (5) of a photosensitive member (1) and a charge retaining layer (6) of a charge retain medium (2) are so disposed as to face each other with a predetermined distance (d). After a power source (8) is connected, light (9) having a predetermined wavelength is irradiated to the photosensitive member (1) to form an electrostatic latent image in the charge retaining layer (6) of the charge retaining medium (2). Next, the charge retaining medium (2) is disconnected from the power source (8), toner is applied onto the charge retaining layer (6) and development and fixing are carried out. Etching is then conducted using the resulting toner image (16) as a mask to remove the portions of the charge retaining layer (6) to which the toner (16) is not deposited. In this manner a printing plate having a scanned portion formed by the toner (16) and the charge retaining layer (6) on the conductive substrate (7) can be obtained. According to this plate, the toner image is formed directly on the charge retaining layer (6) of the charge retaining medium (2). Therefore, the toner image need not be transferred and a scanned portion having high resolution can be formed.

Inventors:

OBATA HIROYUKI (JP)

Application Number:

PCT/JP1990/001198

Publication Date:

April 04, 1991

Filing Date:

September 19, 1990

Export Citation:

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Assignee:

DAINIPPON PRINTING CO LTD (JP)

International Classes:

G03G5/02; G03G13/26; G03G13/28; (IPC1-7): G03G13/26

Foreign References:

JPS6149895A	1986-03-11
JPS62109062A	1987-05-20
JPS54125032A	1979-09-28

Other References: