Developing method for electrostatic latent image

Details Developing method for electrostatic latent image Developing method for electrostatic latent image

1986-02-10

1986-11-25

Prescott, A. C.

Photocopying

Projection printing and copying cameras

Combined with or convertible to a contact printer

355 3DD, 118624, 430 35, G03G 1508

Patent

active

046245596

ABSTRACT:
A developing method for an electrostatic latent image comprises the steps of applying and retaining a layer of developer on a supporting sleeve, conveying the developer on the supporting sleeve to a development area, and regulating the quantity of the developer on the supporting sleeve by a developer regulating device before the developer is conveyed to the development area. The regulating step includes impressing a bias voltage so as to establish a field between the supporting sleeve and the regulating device in order to selectively retain developer on the supporting sleeve which has a desired polarity and quantity of charge for development. The developer regulating device may be a sleeve rotated in a direction opposite to the direction of rotation of the supporting sleeve, and has a bias voltage impressed thereon.

REFERENCES:
patent: 4370049 (1983-01-01), Kuge et al.
patent: 4378158 (1983-03-01), Kanbe

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