Development Rotating Member For Liquid Development, Liquid Developing Device, Image Forming Apparatus, And Process Cartridge

摘要

A development rotating member for liquid development includes a base material, an elastic layer that is provided on the base material, and a surface layer that is provided on the elastic layer and contains a polyimide resin, wherein a JIS-A hardness of the development rotating member is in a range of 40 degrees to 80 degrees.

主权项

1. A liquid developing device comprising:
an accommodating portion that accommodates a liquid developer; a development rotating member for liquid development that holds the liquid developer on the surface thereof, the development rotating member comprising:
a base material;an elastic layer that is provided on the base material; anda surface layer that is provided on the elastic layer and contains a polyimide resin; wherein a JIS-A hardness of the development rotating member is more than 60 degrees and 80 degrees or less, the JIS-A hardness of the development rotating member being measured on a surface of the surface layer in a state in which the surface layer is provided on the elastic layer; a blade that is brought into contact with the surface of the development rotating member for liquid development and performs cleaning; and a supply rotary member that is brought into contact with the development rotating member for liquid development, provided in a state in which a part thereof is immersed in the liquid developer accommodated in the accommodating portion, and supplies the liquid developer to the surface of the development rotating member for liquid developer while rotating, the supply rotary member including grooves on an outer surface thereof which interact with the surface layer of the development rotating member.