| 摘要 |
PROBLEM TO BE SOLVED: To provide a developer quantity regulating blade for suppressing image irregularity, image stripe, ghost and the like caused by high speed rotation of a development carrier in a developing device accompanying a higher speed of an electrophotographic process by forming a uniform thin layer of a developer on a developing roller to give prescribed triboelectricity to the developer. SOLUTION: The developer quantity regulating blade comprises a roller shaped development carrier conveying the developer from a developer container of an electrophotographic device toward a developing part, a blade member contact-pressed on the development carrier, and a support member for supporting the blade member. The developer quantity regulating blade in the developing device regulates the developer in the form of a uniform thin layer while friction-electrifying the developer between the blade member and the development carrier and develops to supply the developer on the uniform thin layer to an electrostatic latent image formed on a latent image carrier. The blade member has a ten-point average roughness (Rz) of 2-25μm on a contact part with at least the development carrier, and has a roughness surface having a kinetic friction coefficient of 2.0 or less. COPYRIGHT: (C)2007,JPO&INPIT |
