Image forming apparatus having an electrically charged paper dust removing brush
AssigneeBrother Kogyo Kabushiki Kaisha
InventorsSoichiro Nishimura, Takeshi Fuwazaki
Life of this patent
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Abstract
In an image forming apparatus, a brush member is formed from a brush made from acrylic resin that has not been subjected to conductivity-enhancing processes. The brush member is attached to a conductive plate. A resistor is provided in series with the conductive plate and a fixed power source. The fixed power source applies a predetermined high voltage to the conductive plate.
Claims37
An image forming apparatus, comprising:
- an image bearing body having a surface that bears thereon a visible image, which is formed through development of an electrostatic latent image by developing agent, and that conveys the visible image to a predetermined transfer position;
- a transfer member, located on the transfer position, transferring the visible image from the image bearing body onto a sheet of paper;
- a paper dust removing member that removes paper dust clinging to the surface of the image bearing body, the paper dust removing member including a brush member that contacts the image bearing body and that is made of fiber material whose resistance has a value preventing discharges from occurring from the brush member toward the surface of the image bearing body;
- and
- a bias voltage applying member that applies an electric bias voltage to the paper dust removing member.
An image forming apparatus as claimed in clam 34, wherein the paper dust removing member further includes a holder for collecting paper dust removed by the brush member, and
- wherein the electric conductive film is provided to the holder in elastic contact with the image bearing body, thereby preventing paper dust removed by the brush member from falling out of the holder.
A process cartridge detachably mounted in an image forming device, the process cartridge comprising:
- an image bearing body having a surface that bears thereon a visible image formed by developing agent
- a paper dust removing member that removes paper dust clinging to the surface of the image bearing body, the paper dust removing member including a brush member that contacts the image bearing body and that is made of fiber material whose resistance has a value preventing discharges from occurring from the brush member toward the surface of the image bearing body;
- and
- a bias voltage applying member that applies an electric bias voltage to the paper dust removing member.
Dependencies are inferred from the claim text.