Electrophotography – Internal machine environment – Particle or contaminant control
Reexamination Certificate
2006-09-19
2006-09-19
Beatty, Robert (Department: 2852)
Electrophotography
Internal machine environment
Particle or contaminant control
C399S347000, C399S349000
Reexamination Certificate
active
07110696
ABSTRACT:
A cleaning unit includes a first blade and a second blade. The first blade is in contact with an image carrier or a paper carrier and removes adhered substances remained on surface of these. The second blade has an abrasive layer that is formed by including abrasive particles in an elastic material and is disposed in the downstream side of the first blade. The second blade is allowed to be in contact with the image carrier1or the paper carrier. Volume occupancy of abrasive particles in an area of contact of the second blade with either the image carrier or the paper carrier is not less than 50 percent and not more than 90 percent.
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Hasegawa Shin
Hirose Hiroya
Karasawa Kazunori
Kawasumi Masanori
Koike Toshio
Beatty Robert
Ricoh & Company, Ltd.
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