Electrophotography – Image formation – Charging
Patent
1997-02-26
1998-10-13
Moses, R. L.
Electrophotography
Image formation
Charging
399150, 361225, G03G 1502, G03G 2100
Patent
active
058226591
ABSTRACT:
An image forming apparatus includes an image bearing member; charging means for charging the image bearing member, the charging means including magnetic field generating means and magnetic particles contactable to the image bearing member at a charging position; developing means for developing with toner a electrostatic image formed on the image bearing member using the charging means; transferring means for transferring a toner image from the image bearing member onto a recording material; wherein the developing means is capable of collecting residual toner from the image bearing member; wherein magnetic confining force acting on the magnetic particle is larger than a magnetic confining force acting on the carrier under a magnetic field formed by the magnetic field generating means at the charging position.
REFERENCES:
patent: 5351109 (1994-09-01), Haneda
patent: 5357323 (1994-10-01), Haneda et al.
patent: 5426489 (1995-06-01), Haneda et al.
patent: 5579095 (1996-11-01), Yano et al.
patent: 5592264 (1997-01-01), Shigeta et al.
patent: 5606401 (1997-02-01), Yano
patent: 5659852 (1997-08-01), Chigono et al.
Canon Kabushiki Kaisha
Moses R. L.
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