Method and apparatus for developing an electrostatic image using

Details Method and apparatus for developing an electrostatic image using Method and apparatus for developing an electrostatic image using

1993-05-20

1994-12-27

Goodrow, John

Radiation imagery chemistry: process, composition, or product th

Electric or magnetic imagery, e.g., xerography,...

Post imaging process, finishing, or perfecting composition...

118657, G03G 1509

Patent

active

053764927

ABSTRACT:
A two component development system includes developer with charged toner particles and oppositely charged carrier particles having high coercivity and permanent magnetism. The developer is moved through a development zone on a shell and into contact with an image member carrying an electrostatic image by rapidly rotating a magnetic core within the shell. The core has alternating magnetic poles around its periphery. To prevent carryout of carrier on the image member, an AC bias is impressed across the development zone.

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patent: 4647186 (1987-03-01), Armstrong et al.
patent: 4838200 (1989-06-01), Hosoi et al.
patent: 4873551 (1989-10-01), Tajima et al.
patent: 4933254 (1990-06-01), Hosoi et al.

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