Document Type and Number:
Japanese Patent JPS4878932
Kind Code:
A
Abstract:
A process for producing positive and negative copies of both positive and negative originals, characterized by the fact that it comprises; forming an electrostatic latent image of said original; revealing the electrostatic latent image with the electrostatic developer, whereby the toner of one polarity is deposited in the image area and the toner of another polarity is deposited at least in the background area immediately adjacent to the image area; and transferring the toner from one polarity to a receiving surface to produce a positive or negative copy. (Machine-translation by Google Translate, not legally binding)
Application Number:
JP12193772A
Publication Date:
October 23, 1973
Filing Date:
December 05, 1972
Export Citation:
International Classes:
G03G9/08; G03G9/097; G03G9/10; G03G9/107; G03G9/113; (IPC1-7): G03G9/02