Coating apparatus – With means to apply electrical and/or radiant energy to work... – With electromagnetic and/or electrostatic removal of...
Patent
1979-03-01
1980-11-25
Lawrence, Evan K.
Coating apparatus
With means to apply electrical and/or radiant energy to work...
With electromagnetic and/or electrostatic removal of...
222DIG1, 355 3DD, G03G 1509
Patent
active
042351944
ABSTRACT:
A dry process developing apparatus for use in an electrophotographic copying machine which includes a developing non-magnetizable sleeve and a multipolar magnet member arranged to be rotated in the same direction at different speeds, the speed of rotation of the developing sleeve causing movement of those particles of the developing material which at the most are only slightly affected by the multipolar magnet member in the direction of rotation of the sleeve, and the speed of rotation of the multipolar magnet causing the movement of particles of developing material affected by the magnet around the sleeve in a direction of rotation opposite that of the magnet and at a speed greater than the speed of the developing sleeve. Scraping members are provided for sliding contact with the peripheral surface of the developing sleeve in the directions against and following the direction of rotation of the developing sleeve.
REFERENCES:
patent: 3152924 (1964-10-01), Wanielista et al.
patent: 3906897 (1975-09-01), Davidson
patent: 3926516 (1975-12-01), Whited
patent: 3940272 (1976-02-01), Davidson
patent: 4113371 (1978-09-01), Fraser et al.
Isono Yoshihiro
Mizunoe Hiroaki
Oka Tateki
Tabuchi Kenji
Tanaka Susumu
Lawrence Evan K.
Minolta Camera Kabushiki Kaisha
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