Electrophotography – Image formation – Development
Patent
1999-08-09
2000-07-25
Beatty, Robert
Electrophotography
Image formation
Development
399286, G03G 1508
Patent
active
060945540
ABSTRACT:
A developing unit of the present invention includes a case which accommodates toner containing pigment, a developing roller, a supply roller having chamfered ends and formed of an elastic member arranged to be pressed against a surface of the developing roller in such a manner as to supply toner to the surface of the developing roller. The side surfaces of the developing roller have a surface roughness of 0.5 .mu.m or smaller in Rmax.
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Aruga Tomoe
Ichikawa Kazuhiro
Ishiwatari Tahei
Kin Hidenori
Nakashima Yoshihiro
Beatty Robert
Seiko Epson Corporation
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