Magnet knife assembly for a toner developing device

Details Magnet knife assembly for a toner developing device Magnet knife assembly for a toner developing device

2008-12-03

2011-11-08

Gray, David (Department: 2852)

Electrophotography

Image formation

Development

C377S099000

Reexamination Certificate

active

08055168

ABSTRACT:
A magnet knife assembly for a toner developing device including a ferromagnetic strip held between like poles (N) of two permanent magnets such that a knife edge portion of the strip projects outwardly beyond the two magnets and is subject to a magnet force that tends to urge the strip in a direction in which the knife edge projects further out of the magnets, wherein the length of the strip is selected such that a portion of the strip opposite to the knife edge is subject to a magnetic force that at least counterbalances said magnetic force on the knife edge portion.

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