Title: Developing roller and developing device using the roller
Application Number: 98806537 Application Date: 1998.06.29
Publication Number: 1261446 Publication Date: 2000.07.26
Approval Pub. Date: 2003.06.25 Granted Pub. Date: 2003.06.25
International Classifi-cation: F16C13/00;G03G15/08
Applicant(s) Name: Kaneka Chemical Industry Address:
Inventor(s) Name: Mimura Kazuyoshi;Kobayashi Kenji;Fukuda Susumu
Attorney & Agent: yu hui
Abstract:
    A developing roller (10) comprising an elastic layer (12) wound round a conductive shaft (11) and one or more resin layers (13) laminated on the elastic layer. The elastic layer (12) has a JIS A hardness of not greater than 50 degrees. At least the outermost layer of the one or more resin layers (13) contains fine particles and the surface roughness (Rz) of the outermost layer is regulated to be within the range of 3 to 15 mum. A resin composition containing an -NHCO- bound or a resin composition containing -ROCO2- and -SiOSi- repeating units and an -NHCO- bond can be used for the outermost layer.
Time: 8