Method of electrostatically forming visual image

Details Method of electrostatically forming visual image Method of electrostatically forming visual image

1996-04-03

1997-09-16

Grimley, Arthur T.

Electrophotography

Image formation

Development

430108, G03G 1309

Patent

active

056690517

ABSTRACT:
A method in which a photoconductive surface is charged to a uniform potential by a charging brush and a two-component magnetic developer is directly attracted on the surfaced of a sleeve-less developing roll formed from a permanent magnet member and transported by the rotation of the permanent magnet member. An electrostatic latent image is developed with the transported magnetic developer in a developing zone to form a visual toner image on the photoconductive drum. The toner image is transferred to a recording sheet by a transfer roll and permanently fixed thereon by a suitable fixing means. The specific volume resistance of the magnetic carrier is restricted to a particular range to prevent the magnetic carrier from adhering to the photoconductive surface.

REFERENCES:
patent: 5246513 (1993-09-01), Kawamura et al.
patent: 5432033 (1995-07-01), Asanae et al.
patent: 5483329 (1996-01-01), Asanae et al.
patent: 5554477 (1996-09-01), Ozawa et al.

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