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Title:
ELASTIC ROLLER, METHOD FOR MANUFACTURING THE SAME, ELECTROPHOTOGRAPHIC APPARATUS WITH THE SAME, AND PROCESS CARTRIDGE
Document Type and Number:
Japanese Patent JP2004157383
Kind Code:
A
Abstract:

To easily manufacture an elastic roller, at low cost, which has a smooth surface and high dimensional accuracy when the elastic roller comprising a core metal and an elastic body layer disposed on the periphery of the core metal is molded using a tubular metal mold, and is free of defective adhesion between the elastic body layer and a surface coating even when a protective layer is formed on the surface of the elastic body layer.

In the elastic roller comprising a core metal and an elastic body layer disposed on the periphery of the core metal, the elastic body layer contains a substance having a melting point of ≥100°C. The content of the substance having a melting point of ≥100°C in the elastic body layer is made higher on the surface of the elastic body layer than in the interior of the elastic body layer.


Inventors:
HARADA MASAAKI
NAGATA YUKINORI
Application Number:
JP2002323999A
Publication Date:
June 03, 2004
Filing Date:
November 07, 2002
Export Citation:
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Assignee:
CANON KK
International Classes:
G03G15/00; B29C44/00; F16C13/00; G03G15/02; G03G15/08; G03G15/16; B29K101/12; B29K105/20; B29L9/00; B29L23/00; (IPC1-7): G03G15/02; B29C44/00; F16C13/00; G03G15/00; G03G15/08; G03G15/16
Attorney, Agent or Firm:
Jyohei Yamashita
Hiroshi Shimura