Patent ID: 7074292
Filing Date: 2006-07-11
Classification: B29C,B32B,G03G,Y10T

Abstract:
1. A process for manufacturing a developer quantity control blade which controls a quantity of a developer carried out of a developer container through a developer-carrying member, the developer quantity control blade comprising a blade member having a charge control face and a supporting member laminated on the blade member, having an apparent Young's modulus Ea in a range of 140 kN/mm 2 to 160 kN/mm 2 , the process comprising the steps of: (i) extruding a material for a blade member onto a charge control face face-transferring resin sheet with a uniform thickness, a fine structure of the charge control face face-transferring resin sheet having a surface such that a macroscopic roughness profile of the surface is in the range of 2 μm to 4 μm and a microscopic roughness profile of the surface is 0.5 μm or less; (ii) solidifying the extruded material on the face-transferring resin sheet to form the blade member having a thickness in a range of 1 μm to 300 μm; (iii) laminating the supporting member to the blade member, the supporting member having a thickness in a range of 50 μm to 150 μm; and (iv) cutting the blade member and the supporting member, which have been laminated, into the shape of a developer quantity control blade as a final shape.