Developing device with magnetic field control feature

Details Developing device with magnetic field control feature Developing device with magnetic field control feature

1997-07-07

1999-04-20

Moses, Richard

Electrophotography

Internal machine environment

Particle or contaminant control

399 98, 399286, G03G 1508, G03G 2100

Patent

active

058951440

ABSTRACT:
A developing device includes a developing sleeve for bearing and conveying a magnetic developer, a magnet provided within the developing sleeve, and magnetic members, provided so as to face end portions of the developing sleeve with a gap, for forming a magnetic seal by a magnetic field formed between the magnetic members and the magnet. The magnet or each of the magnetic members has a plurality of grooves for forming a leakage magnetic field.

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patent: 5742875 (1998-04-01), Bogoshian et al.
patent: 5742876 (1998-04-01), Bogoshian

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