Patent ID: 6157807
Filing Date: 2000-12-05
Classification: G03G

Abstract:
A cleaning device comprising:a cleaning blade, whose tip end is applied in elastically contacting relationship to the surface of an image bearing member on which an image developed with developer supplied from a developing section is held, for removing residual developer remaining on the surface of the image bearing member;a first conveying member disposed opposite the image bearing member and located further upstream in a rotating direction of the image bearing member than the cleaning blade, the first conveying member being constructed to rotate in non-contacting relationship to the image bearing member to convey the residual developer that was removed from the image bearing member by the cleaning blade;a second conveying member disposed parallel to the first conveying member and constructed to rotate in non-contacting relationship to the first conveying member;first bias voltage applying means for applying to the first conveying member a bias voltage having a polarity opposite to a proper polarity for development in order to make the first conveying member convey and recover the developer by attracting thereto the developer charged with the proper polarity; andsecond bias voltage applying means for applying to the second conveying member a bias voltage having the same polarity as the proper polarity in order to make the second conveying member convey and recover developer and foreign matter charged with a polarity opposite to the proper polarity by attracting the developer and foreign matter thereto.