Patent EP0354962A1 successfully refreshed from Google Patents.
EP0354962A1
Expired / Lapsed
EP
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Blade for electrophotographic apparatus
Assignee: Mitsubishi Chemical Corp
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Filing: 1988-09-16
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Granted: —
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Expires: 2008-09-16
Abstract
Abstract A blade for an electrophotographic apparatus using a toner, wherein the blade comprises a fluorocarbon polymer composition consisting of 60 to 95 wt% of a fluorocarbon polymer, 40 to 5 wt% of a positively- chargeable and non-conductive inorganic filler having a mean particle diameter of up to 5 µm and 0 to 25 parts by weight of a conductive filler having a mean particle diameter of up to 5 µm on the basis of 100 parts by weight of the two components described above. The blade of the present invention can be molded integrally with a metallic holder, has high dimensional accuracy and has stable charge characteristics and an excellent toner fixing prevention property.
Inventors
- 👤 Shinji Mitsubishi Petrochemical Co. Ltd. Horie
- 👤 Hideto Mitsubishi Petrochemical Co. Ltd. Shimizu
- 👤 Michio Mitsubishi Petrochemical Co. Ltd. Ohmori
- 👤 Hiroshi Mitsubishi Petrochemical Co. Ltd. Yui
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-03 05:58
CPC Classifications
G; G03; G03G; G03G21/00; G03G21/0005; G03G21/0011; G03G21/0029; G03G15/00; G03G15/06; G03G15/08; G03G15/0806; G03G15/0812; G03G21/0017
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
89 words
(1) A blade of an electrophotographic apparatus using a toner, which is characterized in that the blade comprises a fluorocarbon polymer composition comprisign 60 to 95% by weight of a fluorocarbon polymer, 40 to 5% by weight of a positively chargeable and non-conductive inorganic filler having an average particle diameter of 5 or less, and 0 to 25 parts by weight, per 100 parts by weight of the total of said fluorocarbon polymer and inorganic filler, of a conductive filler having an average particle diameter of 5 or less.
Claim 2
Dependent Claim
27 words
(2) A blade as claimed in claim 1, wherein said fluorocarbon polymer is a vinylidene fluoride-hexa- fluoropropylene copolymer, an ethylene-tetrafluoroethylene copolymer, or a tetrafluoroethylene-perfluoroalkyl- vinyl ether copolymer.
Claim 3
Dependent Claim
24 words
(3) A blade as claimed in claim 1 or 2, wherein said positively chargeable and non-conductive inorganic filler is zinc oxide or magnesium oxide.
Claim 4
Dependent Claim
19 words
(4) A blade as claimed in claim 1, 2, or 3, wherein said conductive filler is a carbon-based filler.
Claim 5
Dependent Claim
18 words
(5) A blade as claimed in claim 4, wherein said carbon-based filler is acetylene black or furnace black.
Claim 6
Dependent Claim
33 words
(6) A blade as claimed in claim 5, wherein said furnace black is XCF (extra conductive furnace black), SCF (super conductive furnace black), CF (conductive furnace black), or SAF (super abrasion furnace black).
Claim 7
Dependent Claim
22 words
(7) A blade as claimed in any of claims 1 to 6, wherein said blade is integrally molded with a metallic holder.
Claim 8
Dependent Claim
36 words
(8) A blade as claimed in claim 7, wherein said blade is integrally molded with said metallic holder so as to cover a projection of said metallic holder whose tip is larger than the root thereof.
Claim 9
Dependent Claim
41 words
(9) A blade as claimed in claim 7, wherein said blade is integrally molded with said metallic holder, with a part of said blade being filled in a recess of said metallic holder whose bottom is larger than the opening thereof.
Claim 10
Dependent Claim
45 words
(10) A blade as claimed in claim 7, wherein said blade is integrally molded with said metallic holder, with a part of said blade being filled in perforations provided in said metallic holder to the direction different from the direction of release of the blade.
Claim 11
Dependent Claim
26 words
(11) A blade as claimed in claim 7, wherein said blade is integrally molded with said metallic holder so as to include the metallic holder therein.
References Cited (Backward Citations)
No citation records indexed.
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