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Cleaning apparatus and cleaning method

  • US 6,374,074 B1
  • Filed: 02/10/2000
  • Issued: 04/16/2002
  • Est. Priority Date: 02/10/2000
  • Status: Expired due to Fees
First Claim
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1. A cleaning apparatus comprising:

  • a scraping member for removing a developing agent left on a rotatable drum-like image carrier, a tip portion of the scraping member being in contact with the image carrier;

    a receiving member located at an upstream side of the scraping member in a rotation direction of the image carrier, for receiving developing agent from the scraping member in contact with the image carrier; and

    a rotational body for feeding and recovering the developing agent received by the receiving member by rotating the developing agent in a predetermined direction, the rotational body rotating in the same direction as the image carrier;

    wherein, assuming that a rotation center of the image carrier is 01, a rotation center of the rotational body is 02, a contact point of the image carrier in contact with the scraping member is A, a contact point of the image carrier in contact with the receipt member is B, and further an angle between a line connecting the center 01 to the point A and a line connecting the center 01 to the center 02 is represented by a; and

    an angle between the line connecting the center 01 to the point A and a line connecting the center 01 and point B is represented by b, the rotational body is placed at a position satisfying an equation as to the angle a;

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