Electrophotography – Image formation – Development
Patent
1993-08-31
1997-02-04
Pendegrass, Joan H.
Electrophotography
Image formation
Development
G03G 1508
Patent
active
056004176
ABSTRACT:
In a developing device for developing an electrostatic latent image formed on a photosensitive member in an electrophotographic apparatus, a developing roller and a developing blade are formed such that the hardness of the surface of the developing blade is higher than the hardness of the surface of the developing roller by 30 degrees or more in JIS-A hardness. The developing blade deforms and bites into the developing roller. Accordingly, the developing roller can be brought into tight contact with the developing blade, and a great frictional force is applied to the toner passing between the developing roller and blade to fully charge the toner.
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Arai Seiji
Fukuyama Hirotaka
Hashizume Hiroshi
Iguchi Michihisa
Kabai Takahito
Kabushiki Kaisha TEC
Kabushiki Kaisha Toshiba
Pendegrass Joan H.
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