Patent ID: 7995950
Filing Date: 2011-08-09
Classification: G03G

Abstract:
1. An image forming apparatus comprising: an image bearing member configured to bear a latent electrostatic image, the image bearing member having a drum form and a total runout of a surface of the image bearing member relative to a driving axis thereof is not greater than 0.080 mm; a latent electrostatic image forming device configured to form the latent electrostatic image on the image bearing member; a developing device configured to develop and visualize the latent electrostatic image on the image bearing member with a polymerized toner including a polyester, the polymerized toner having a volume average particle diameter that ranges from 3 to 8 μm, an average circularity not less than 0.95; a transfer device configured to transfer the visualized toner image to a recording medium; and a cleaning device comprising: wherein a static friction coefficient μ of the image bearing member ranges from 0.1 to 0.3, a contact pressure of the cleaning blade to the image bearing member ranges from 1.5 to 10 g/cm, and the image bearing member and the cleaning blade satisfy the following relationships (1) and (2): wherein T an uppermost layer of the image bearing member comprises fluorine resin particulates and the following relationship is satisfied: wherein D represents an average diameter of projection images of the fluorine resin particulates surfacing on the uppermost layer, and a total area of the projection images of the fluorine resin particulates is not less than 10% based on a total surface area of the uppermost layer.