Magnetic brush type developing device

Details Magnetic brush type developing device Magnetic brush type developing device

1982-02-12

1984-01-31

Prescott, A. C.

Photocopying

Including fiber optics

355 14D, 118658, G03G 1508

Patent

active

044286619

ABSTRACT:
A magnetic brush developing device for developing an electrostatic latent image formed on a charge retaining member includes a housing for containing developer, a developing sleeve arranged rotatably in the housing, a plurality of magnets interior of the developing sleeve, a doctor blade for regulating a thickness of a developer layer formed on a circumferential surface of the developing sleeve by a magnetic flux of the magnets, and a magnetic material fixed on an internal surface of the housing and downstream of the doctor blade as viewed from the direction of the rotation of the developing sleeve. The magnetic material extends in the direction of the width of the developing sleeve, is spaced from the circumferential surface of the developing sleeve, and is positioned opposite to at least one of the magnets arranged in the developing sleeve.

REFERENCES:
patent: 4213617 (1980-07-01), Salger

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