EP 0444211 A4 19930317 - PRINTING PRESS USING CHARGE RETAINING MEDIUM, ITS MANUFACTURING METHOD AND STRIPPING SYSTEM USING CHARGE RETAINING MEDIUM
Title (en)
PRINTING PRESS USING CHARGE RETAINING MEDIUM, ITS MANUFACTURING METHOD AND STRIPPING SYSTEM USING CHARGE RETAINING MEDIUM
Publication
Application
Priority
- JP 24543089 A 19890921
- JP 29916889 A 19891117
Abstract (en)
[origin: WO9104518A1] 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.
IPC 1-7
IPC 8 full level
G03G 5/02 (2006.01); G03G 13/26 (2006.01); G03G 13/28 (2006.01)
CPC (source: EP)
G03G 5/02 (2013.01); G03G 13/26 (2013.01); G03G 13/28 (2013.01)
Citation (search report)
- EP 0281727 A2 19880914 - MITSUBISHI PAPER MILLS LTD [JP]
- EP 0342967 A2 19891123 - DAINIPPON PRINTING CO LTD [JP]
- EP 0398475 A2 19901122 - VICTOR COMPANY OF JAPAN [JP]
- US 3615389 A 19711026 - NEWBERRY STERLING P
- US 4628017 A 19861209 - TAGOKU IZUMI [JP]
- [X] PATENT ABSTRACTS OF JAPAN vol. 12, no. 295 (P-743)11 August 1988 & JP-A-63 068 858 ( DAINIPPON INK & CHEM INC ) 28 March 1988
- [X] PATENT ABSTRACTS OF JAPAN vol. 7, no. 265 (M-258)(1410) 25 November 1983 & JP-A-58 145 495 ( MITSUBISHI SEISHI ) 30 August 1983
- See references of WO 9104518A1
Designated contracting state (EPC)
DE ES FR GB IT
DOCDB simple family (publication)
WO 9104518 A1 19910404; EP 0444211 A1 19910904; EP 0444211 A4 19930317
DOCDB simple family (application)
JP 9001198 W 19900919; EP 90913869 A 19900919