Developing apparatus

Details Developing apparatus Developing apparatus

1986-09-26

1989-06-13

Beck, Shrive

Coating apparatus

With means to apply electrical and/or radiant energy to work...

With electromagnetic and/or electrostatic removal of...

355215, 355251, G03G 1509

Patent

active

048382000

ABSTRACT:
A developing apparatus for developing a latent image using a developer containing carrier particles and toner particles in a developing position, includes a developer, container, a developer carrying member magnetic field generating pole, disposed across the developer carrying member from its developer carrying surface a regulator for regulating an amount of the toner particles and carrier particles to be applied on the surface of the developer carrying member; a magnetic member disposed upstream of the regulator and the downstream of the developing position and having a surface spaced from the surface of the developer carrying member to form a clearance which decreases toward a downstream side and being from an upstream side effective to enhance the magnetic field formed between the magnetic field generating pole and the magnetic member such that the enhanced magnetic field allows the developer to return to the container after passing through the developing position to enter the developer container while preventing the magnetic particles in the container from leaking out of the container.

REFERENCES:
patent: 4244322 (1981-01-01), Nomura et al.
patent: 4334772 (1982-06-01), Suzuki
patent: 4386577 (1983-06-01), Hosono et al.
patent: 4387664 (1983-06-01), Hosono et al.
patent: 4548489 (1985-10-01), Yoshikawa
patent: 4563978 (1986-01-01), Nakamura et al.
patent: 4579082 (1986-04-01), Murasawa et al.
patent: 4615608 (1986-10-01), Mizutani
patent: 4660958 (1987-04-01), Egami et al.

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