Patent ID: 7991343

Claim:
A photoconductor drum cleaning apparatus in an electrophotographic printer in which a toner image formed on a photoconductor drum is transferred via a transfer drum onto a recording medium to print an image thereon, wherein the apparatus comprises: disposed in order from upstream in the rotation direction of the photoconductor drum, a blade scraper contacting with the surface of the rotating photoconductor drum and a wiping roll rotating reversely in rubbing contact with the surface of the rotating photoconductor drum; disposed upstream of an area of rubbing contact of the rotating wiping roll with the photoconductor drum, a squeezing roll rotating normally in pressure contact with the surface of the rotating wiping roll; and disposed downstream of an area of rubbing contact of the rotating wiping roll with the photoconductor drum and upstream of the rotating squeeze roll, a brush roll rotating normally or reversely in pressure contact with the surface of the rotating wiping roll, the brush roll having a portion of its outer periphery immersed in a cleaning carrier solution.