Title:
ELECTRIFYING MEMBER AND ELECTRIFYING DEVICE
Document Type and Number:
Japanese Patent JP3227333
Kind Code:
B2
Abstract:
PURPOSE: To prevent abrasion of an electrifying member in edges in the longitudinal direction of the member by forming the member in such a manner that the microhardness of the edge area in the longitudinal direction is higher than the microhardness in the center area.
CONSTITUTION: A conductive elastic layer 2b comprising a foamed body of ethylene propylene rubber containing a conductive carbon black is formed around a core metal 2a. A coating layer is formed on the whole surface of the conductive foamed body roller by using a coating material comprising a polyether urethane emulsion. A coating layer 2d is formed by using a coating material comprising an acryl-urethane emulsion on the edge part of the conductive elastic layer 2b. The edge part corresponds to the area in a photoreceptor where no image is to be formed. Then a coating layer 2e comprising nylon is formed on the whole area where the conductive elastic layer 2b is formed. Thus, the microhardness in the edge area of the electrifying member is made higher than the microhardness in the center area.
Inventors:
Tomoji Ishihara
Tsunenori Ashibe
Tsunenori Ashibe
Application Number:
JP4722795A
Publication Date:
November 12, 2001
Filing Date:
March 07, 1995
Export Citation:
Assignee:
Canon Inc
International Classes:
G03G15/02; F16C13/00; (IPC1-7): G03G15/02
Domestic Patent References:
| JP5257362A | ||||
| JP6102783A | ||||
| JP63208877A | ||||
| JP425869A | ||||
| JP4157483A | ||||
| JP3246566A |
Attorney, Agent or Firm:
Keizo Nishiyama (1 person outside)
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