Electrostatic printing method
Abstract
Abstract AN ELECTROSTATIC PRINTING METHOD AND DEVICE THEREFOR COMPRISING THE STEPS OF (1) FORMING AN ELECTROSTATIC LATENT IMAGE UPON A CONDUCTIVE PHOTORECEPTOR BY AN ELECTRONIC PHOTOGRAPHY, (2) DEVELOPING SAID IMAGE WITH AN ELECTRICALLY INSULATING AND WATER REPELLENT DEVELOPING AGENT AND FIXING THE DEVELOPED IMAGE IF NECESSARY, (3) RENDERING NON-IMAGE PORTIONS (THAT IS PORTIONS HAVING NO DEVELOPING AGENT ATTACHED THERETO) HYDROPHILIC WITH A HYDROPHILIC AGENT AFTER SAID FIXING, (4) RENDERING SAID HYDROPHILIC PORTIONS ELECTRICALLY CONDUCTIVE WITH A CONDUCTING AGENT, (5) ELECTRICALLY CHARGING THE ELECTROSTATIC PRINTING PLATE, THUS OBTAINED THEREBY BINDING THE CHARGE UPON THE ELECTRICALLY CHARGEABLE OR CHARGE RETAINABLE AND WATER REPELLENT IMAGE PORTION, (6) TRANSFERRING SAID CHARGE UPON AN ELECTRICALLY INSULATING BODY, THEREBY FORMING AN ELECTROSTATIC LATENT IMAGE, AND (7) DEVELOPING SAID ELECTROSTATIC LATENT IMAGE AND IF NECESSARY FIXING SAID IMAGE THUS DEVELOPED. REPRESENTATIVE FIGURES: FIGS. 6,7, AND 8.
Inventors
- 👤 Wasaburo Ohta
Bibliographic Details
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