Electrophotography – Internal machine environment – Particle or contaminant control
Reexamination Certificate
2009-12-16
2011-10-25
Ngo, Hoang (Department: 2852)
Electrophotography
Internal machine environment
Particle or contaminant control
Reexamination Certificate
active
08045881
ABSTRACT:
A cleaning device for an intermediate transferring member, comprising:a first cleaning roller that is placed so as to rotate while being made in contact with a surface of the intermediate transferring member;a first bias-applying device that applies a bias voltage to the first cleaning roller;a second cleaning roller that is placed so as to rotate while being made in contact with the surface of the intermediate transferring member on a downstream side from the first cleaning roller in a surface-moving direction of the intermediate transferring member; anda second bias-applying device that applies a bias voltage having a polarity different from that of the bias voltage applied by the first bias-applying device to the second cleaning roller,wherein the first cleaning roller is a foam roller having a foam layer on a surface thereof, with a cell wall face in the foam layer having an opening ratio in a range of 3% or more to 50% or less, andthe second cleaning roller is a brush roller, and an image-forming apparatus equipped with said cleaning device for an intermediate transferring member.
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Office Action (Preliminary Notice of Rejection) dated Oct. 26, 2010, issued in the corresponding Japanese Patent Application No. 2008-319913, and an English Translation thereof.
Office Action (Preliminary Notice of Rejection) dated Jun. 7, 2011, issued in the corresponding Japanese Patent Application No. 2008-319913, and an English Translation thereof.
Nakagawa Hirofumi
Sano Tetsuo
Shouno Junpei
Buchanan & Ingersoll & Rooney PC
Konica Minolta Business Technologies Inc.
Ngo Hoang
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