Patent ID: 7680435
Filing Date: 2010-03-16
Classification: B29C,B29K,G03G

Abstract:
1. A flange to be attached to an end of a photoconductor drum, the flange comprising: a drum engagement part configured to be engaged with an inner surface of the photoconductor drum; a center hole; and a flange part which is larger in outer diameter than the drum engagement part, wherein a groove is formed in the drum engagement part at a position near the flange part, and a diameter of the drum engagement part is 0.1 mm to 0.5 mm smaller at the groove than at an adjacent area of the drum engagement part in a direction away from the flange part, and wherein the flange is prepared by the process comprising: cutting a surface of the drum engagement part and an inner surface of the center hole so that an axis of the center hole coincides with an axis of the photoconductor drum.