Electrophotography – Image formation – Charging
Reexamination Certificate
2006-05-30
2006-05-30
Ngo, Hoang (Department: 2852)
Electrophotography
Image formation
Charging
C399S176000
Reexamination Certificate
active
07054579
ABSTRACT:
In a charging member having a support and one or more cover layer(s), the ten-point average surface roughness of the surface of the charging member, the height of a hill of the surface of the charging member, the area at the part of the hill, and the area of a region surrounded by hills each having the height H (μm) and other hills each having a height of not less than the height H (μm), and not including any hills having a height of more than 0.5H (μm) satisfy a specific relationship. Also, a surface layer of the charging member contains high-molecular compound particles whose average particle diameter is between 2 and 50 μm and whose range of particle size distribution of average particle diameter is above 0μm and not greater than 7 μm.
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Inoue Hiroshi
Kuroda Noriaki
Otaka Toshihiro
Taniguchi Tomohito
Tsuru Seiji
Canon Kabushiki Kaisha
Fitzpatrick ,Cella, Harper & Scinto
Ngo Hoang
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