Electrostatic brush cleaner with a secondary cleaner
First Claim
Patent Images
1. An apparatus for removing residual particles from an imaging surface, comprising:
- a housing defining an open ended chamber;
means for discharging the particles on the imaging surface;
a first brush, rotatably mounted in the chamber of said housing, for removing the discharged particles from the imaging surface;
said discharging means includes a corona generating device located downstream of said first brush in the direction of movement of the imaging surface;
means for electrically biasing said first brush with an alternating current;
a second brush, located upstream of said first brush;
means for electrically biasing said second brush with a direct current; and
means, connected to said housing for generating an air flow that forces the particles away from said first brush and said second brush toward an outlet from said housing.
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Abstract
A cleaning brush electrically biased with an alternating current removes discharged particles from an imaging surface. The particles on the imaging surface are discharged by a corona generating device. A second cleaning device including an insulative brush, a conductive brush or a blade, located upstream of the first mentioned brush, in the direction of movement of the imaging surface, further removes redeposited particles therefrom.
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Citations
5 Claims
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1. An apparatus for removing residual particles from an imaging surface, comprising:
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a housing defining an open ended chamber; means for discharging the particles on the imaging surface; a first brush, rotatably mounted in the chamber of said housing, for removing the discharged particles from the imaging surface; said discharging means includes a corona generating device located downstream of said first brush in the direction of movement of the imaging surface; means for electrically biasing said first brush with an alternating current; a second brush, located upstream of said first brush; means for electrically biasing said second brush with a direct current; and means, connected to said housing for generating an air flow that forces the particles away from said first brush and said second brush toward an outlet from said housing. - View Dependent Claims (2, 3, 4)
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5. An apparatus for removing residual particles from an imaging surface, comprising:
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a housing defining an open ended chamber; means for discharging the particles on the imaging surface; a first brush, rotatably mounted in the chamber of said housing, for removing the discharged particles from the imaging surface; said discharging means includes a corona generating device located downstream of said first brush from the direction of movement of the imaging surface; means for electrically biasing said first brush with an alternating current; a second brush being insulative, is located upstream of said first brush; and means, connected to said housing, for generating an air flow that forces the particles away from said first brush and said second brush toward an outlet from said housing.
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Specification