EP0277651A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Image fixing device and roller therefor
Assignee: Canon Inc
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Filing: 1988-02-03
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Granted: —
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Expires: 2008-02-03
Abstract
Abstract An image fixing apparatus in which a recording material (30) having an unfixed image is passed through a nip (N) formed between rotatable rollers. At least one of the rollers is provided with a surface layer (40) containing straight-needle like single-crytal fibers (50).
Inventors
- 👤 Hisaaki Senba
- 👤 Michio Shigenobu
- 👤 Tsohiyuki Hatta
- 👤 Masaya Nishi
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-02 20:34
CPC Classifications
G; G03; G03G; G03G15/00; G03G15/20; G03G15/2003; G03G15/2014; G03G15/2053; G03G15/2057; G03G15/206; Y; Y10; Y10S; Y10S428/00; Y10S428/909; Y10T; Y10T428/00; Y10T428/30
Claims Analysis
Total Claims: 26
Claim 1
Independent Claim
33 words
A roller for fixing a toner image on a recording material, comprising: a base member; and a surface layer outside said base member, said surface layer contains straight-needle like single-crystal fibers mixed thereinto.
Claim 2
Dependent Claim
33 words
A roller for fixing a toner image on a recording material, comprising: a base member; and a surface layer outside said base member, said surface layer contains straight-needle like single-crystal fibers mixed thereinto.
Claim 3
Dependent Claim
19 words
A roller according to Claim 1, wherein the fibers have a volume resistivity of not more than 10¹⁰ ohm.cm.
Claim 4
Dependent Claim
16 words
A roller according to Claim 1, wherein the fibers have lengths of 5 - 30 microns.
Claim 5
Dependent Claim
28 words
A roller according to Claim 1, wherein a content of the fibers is 2 - 20 % by weight with respect to base material of the surface layer.
Claim 6
Dependent Claim
22 words
A roller according to any one of Claims 1 - 4, wherein said surface layer has a base material of fluorine resin.
Claim 7
Dependent Claim
17 words
A roller according to Claim 5, wherein said surface layer has a base material of polytetrafluoroethylene resin.
Claim 8
Dependent Claim
17 words
A roller according to Claim 5, wherein said surface layer has a base material of perfluoroalkoxy resin.
Claim 9
Dependent Claim
18 words
A roller according to any one of Claims 1 - 4, wherein the fibers are of potassium titanate.
Claim 10
Dependent Claim
18 words
A roller according to any one of Claims 1 - 4, wherein said fibers are of silicon carbide.
Claim 11
Dependent Claim
17 words
A roller according to any one of Claims 1 - 4, wherein said fibers are of carbon.
Claim 12
Dependent Claim
30 words
A roller according to Claim 1, further comprising an intermediate layer between said base member and said surface layer, wherein said intermediate layer contains straight-needle like single-crystal fibers mixed thereinto.
Claim 13
Dependent Claim
46 words
An image fixing apparatus for fixing a toner image on a recording material, comprising: a rotatable roller press-contacted to the recording material, said roller including a base member; and a surface layer outside said base member, said surface layer contains straight-needle like single-crystal fibers mixed thereinto.
Claim 14
Dependent Claim
46 words
An image fixing apparatus for fixing a toner image on a recording material, comprising: a rotatable roller press-contacted to the recording material, said roller including a base member; and a surface layer outside said base member, said surface layer contains straight-needle like single-crystal fibers mixed thereinto.
Claim 15
Dependent Claim
19 words
An apparatus according to Claim 12, wherein the fibers have a volume resistivity of not more than 10¹⁰ ohm.cm.
Claim 16
Dependent Claim
16 words
An apparatus according to Claim 12, wherein the fibers have lengths of 5 - 30 microns.
Claim 17
Dependent Claim
28 words
An apparatus according to Claim 12, wherein a content of the fibers is 2 - 20 % by weight with respect to base material of the surface layer.
Claim 18
Independent Claim
22 words
An apparatus according to any one of Claims 12 - 15, wherein said surface layer has a base material of fluorine resin.
Claim 19
Dependent Claim
17 words
An apparatus according to Claim 16, wherein said surface layer has a base material of polytetrafluoroethylene resin.
Claim 20
Dependent Claim
17 words
An apparatus according to Claim 16, wherein said surface layer has a base material of perfluoroalkoxy resin.
Claim 21
Independent Claim
18 words
An apparatus according to any one of Claims 12 - 15, wherein the fibers are of potassium titanate.
Claim 22
Independent Claim
18 words
An apparatus according to any one of Claims 12 - 15, wherein said fibers are of silicon carbide.
Claim 23
Independent Claim
17 words
An apparatus according to any one of Claims 12 - 15, wherein said fibers are of carbon.
Claim 24
Dependent Claim
30 words
An apparatus according to Claim 12, further comprising an intermediate layer between said base member and said surface layer, wherein said intermediate layer contains straight-needle like single-crystal fibers mixed thereinto.
Claim 25
Dependent Claim
14 words
An apparatus according to Claim 12, further comprising means for electrically grounding said roller.
Claim 26
Dependent Claim
17 words
An apparatus according to Claim 12, further comprising means for electrically grounding said roller through resistor means.
References Cited (Backward Citations)
No citation records indexed.
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