Title:
DRY PROCESS COPYING MACHINE
Document Type and Number:
Japanese Patent JP2713705
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a separating pawl made of a heat resistant resin capable of sufficiently withstanding long-term continuous use without causing separating direction deffects or paper jamming without impairing the thermal conductivity and electrical conductivity thereof by coating the surface layer at least at the front end of the separating pawl with a fluorinated polyether polymer.
SOLUTION: The surface layers at least at the front ends of the separating pawls made of a heat resistant resin are coated with a fluorinated polyether polymer. The fluorinated polyether polymer is a polymer expressed by formula -CX1F2X1-O- as the main structural unit which is terminal-bonded with at least one polar group. In the formula, X1 is an integer from 1 to 4. A fixing roller is a fixing roller heated to 170 to 270°C. The heat resistant resins used here is, for example, an arom. polyimide resin, polyimide resin, etc., having a mechanical strength to make the resin usable continuously as a separating pawl material for fixing paper at an atmospheric temp. of 150°C or above.
Inventors:
Bunri Satoji
Application Number:
JP22379996A
Publication Date:
February 16, 1998
Filing Date:
August 26, 1996
Export Citation:
Assignee:
NTT Corporation
International Classes:
G03G15/20; B29D99/00; B65H29/54; B29K27/12; (IPC1-7): G03G15/20; B29D31/00; B65H29/54
Domestic Patent References:
| JP57116375A | ||||
| JP57111569A |
Attorney, Agent or Firm:
Bunji Kamata (2 outside)