Electric charge generator for use in an apparatus for producing

Details Electric charge generator for use in an apparatus for producing Electric charge generator for use in an apparatus for producing

1995-10-10

1998-04-21

Fleming, Fritz

Electricity: electrical systems and devices

Electric charging of objects or materials

By charged gas irradiation

G03G 1500

Patent

active

057424683

ABSTRACT:
An electric charge generator for use in an apparatus for producing an electrostatic latent image includes a plurality of charge generation controlling devices, each charge generation controlling device including: an insulating substrate; a line electrode formed on the insulating substrate; a solid dielectric film formed on the surface of the line electrode; a finger electrode having a hole for generating an electric charge, the hole being formed in the central part of the finger electrode, the finger electrode being formed on the solid dielectric film; a solid insulating film having a hole for passing the electric charge, the hole being formed in the central part of the solid insulating film, the solid insulating film being formed on the finger electrode; and a screen electrode having a hole for ejecting the electric charge, the hole being formed in the central part of the screen electrode, the screen electrode being formed on the surface of the finger electrode via the solid insulating film; wherein the plurality of charge generation controlling devices are arranged on the insulating substrate so as to form the electric charge generator. The solid insulating film is formed of a multilayer solid insulating film including a surface-side layer made of an inorganic insulating film and a substrate-side layer made of an organic insulating film whereby the durability and the reliability are improved.

REFERENCES:
patent: 4783716 (1988-11-01), Nagase et al.

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