Patent EP0430677A2 successfully refreshed from Google Patents.
EP0430677A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Fixing device
Assignee: Canon Inc
•
Filing: 1990-11-28
•
Granted: —
•
Expires: 2010-11-28
Abstract
Abstract This invention relates to a fixing device (26) comprising, a heat rotatory body (1) heated by a heating source (7) having a surface layer (6) comprising a silicone rubber; a back-up rotatory body (2) which is in pressure contact with said heated rotatory body (1); an oil feeding means (3) which feeds silicone oil to said heated rotatory surface (1); said pair of rotatory bodies (1,2) performing fixing while conveying the supporting material (P) having unfixed images (T) supported thereon sandwiched therebetween; and said feeding oil being a phenyl type silicone oil and said silicone rubber' surface (6) being impregnated with dimethylsilicone oil. <IMAGE>
Inventors
- 👤 Takeshi Menjo
- 👤 Masaaki Sakurai
- 👤 Tatsuo Takeuchi
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-30 11:43
CPC Classifications
G; G03; G03G; G03G15/00; G03G15/20; G03G15/2003; G03G15/2014; G03G15/2053; G03G15/2057; G03G11/00; G03G15/2017; G03G15/2025; G03G2215/00; G03G2215/20; G03G2215/2003; G03G2215/2048; G03G2215/2051; G03G2215/2054
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
87 words
A fixing device comprising: a heat rotatory body heated by a heating source having a surface layer comprising a silicone rubber; a back-up rotatory body which is in pressure contact with said heated rotatory body; an oil feeding means which feeds silicone oil to said heated rotatory surface; said pair of rotatory bodies performing fixing while conveying the supporting material having unfixed images supported thereon sandwiched therebetween; and said feeding oil being a phenyl type silicone oil and said silicone rubber surface being impregnated with dimethylsilicone oil.
Claim 2
Dependent Claim
19 words
A fixing device according to Claim 1, wherein said surface layer is methyl type or methylvinyl type silicone rubber.
Claim 3
Dependent Claim
15 words
A fixing device according to Claim 2, wherein said feeding oil is methylphenyl silicone oil.
Claim 4
Dependent Claim
20 words
A fixing device according to Claim 3, wherein moles of said methylphenyl silicone oil are 5 mole % or more.
Claim 5
Dependent Claim
19 words
A fixing device according to Claim 1, wherein the viscosity of said feeding oil is 10 to 10000 cs.
Claim 6
Dependent Claim
19 words
A fixing device according to Claim 1, wherein the viscosity of said impregnated oil is 10 to 1000 cs.
Claim 7
Dependent Claim
22 words
A fixing device according to Claim 1, wherein the viscosity of said impregnated oil is lower than that of said feeding oil.
Claim 8
Dependent Claim
26 words
A fixing device according to Claim 1, wherein the amount of said dimethylsilicone oil impregnated is 1 to 50 % by weight of said silicone rubber.
Claim 9
Dependent Claim
42 words
A fixing device according to Claim 1, wherein said fixing is used for a full-color image forming device which laminates toner images with different colors on a supporting material, and said fixing device mixes colors of the toner images of multiple layers.
Claim 10
Dependent Claim
92 words
A fixing device comprising: a heat rotatory body heated by a heating source having a surface layer comprising a silicone rubber; an oil feeding means which feeds silicone oil to said heated rotatory surface; said pair of rotatory bodies performing fixing while conveying the supporting material having unfixed images supported thereon sandwiched therebetween; and said feeding oil being a methylphenyl type silicone oil and said silicone rubber being methyl type or methylvinyl type silicone rubber with a saturated swelling amount of 0 % or less based on the methylphenyl type silicone oil.
Claim 11
Dependent Claim
20 words
A fixing device according to Claim 10, wherein moles of said methylphenyl silicone oil are 5 mole % or more.
Claim 12
Dependent Claim
19 words
A fixing device according to Claim 10, wherein the viscosity of said feeding oil is 10 to 10000 cs.
Claim 13
Dependent Claim
42 words
A fixing device according to Claim 10, wherein said fixing is used for a full-color image forming device which laminates toner images with different colors on a supporting material, and said fixing device mixes colors of the toner images of multiple layers.
Claim 14
Dependent Claim
42 words
Fixing means for fixing an image, comprising a heated pressurised member coated with oil, the surface layer of the member comprising a silicone rubber impregnated with dimethyl silicone oil and the said oil coating the member comprising a phenyl type silicone oil.
Claim 15
Dependent Claim
51 words
Fixing means for fixing an image, comprising a heated pressurised member coated with oil, the oil comprising a phenyl type silicone oil and the surface layer of the member comprising a methyl type or a methyl vinyl type silicone rubber which is not substantially swellable in said phenyl type silicone oil.
Claim 16
Independent Claim
73 words
A method of fixing an image on an image bearing medium comprising subjecting the medium to heat and pressure from a member having a surface layer comprising a silicone rubber bearing an oil, the oil being a phenyl type silicone oil and the silicone rubber either being impregnated with dimethyl silicone oil or comprising a methyl or methyl vinyl type silicone rubber which is not substantially swellable in said phenyl type silicone oil.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
Maintenance schedule is calculated for granted US utility patents.