Prevention of toner deposition at end of copying in an auto...

G - Physics – 03 – G

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32/12.14, 117/3.

G03G 13/10 (2006.01) G03G 15/06 (2006.01) G03G 15/10 (2006.01)

Patent

CA 1070572

ABSTRACT OF THE DISCLOSURE An auto-bias developing process for developing an electrostatic latent image formed on a photo- sensitive member which includes the step os storing a detected potential in order to apply a fixed bias potential to a developing electrode plate. The surface potential of a photosensitive member is detected through a develop- ing solution, and is stored in a memory. A fixed bias potential which corresponds to the detected potential is applied. The process also includes the step of removing a toner which attaches to the developing electrode plate, by the application of a reverse bias potential thereto when the developing process does not take place. The process also includes the step of rendering the devel- oping electrode plate electrically floating for removing a toner from the plate and preventing depositin of a toner onto the surface of the photosensitive member.

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