EP0530618A1
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Fixing device with temperature sensing device
Assignee: Konica Minolta Inc
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Filing: 1992-08-21
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Granted: —
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Expires: 2012-08-21
Abstract
Abstract In a device for sensing a temperature of a fixing roller, a thermistor is provided on a flat upper surface of a support member made of a foamed silicone material, with a heat conductive material provided between them. A heatproof protective sheet is wrapped around so that the thermistor is partially sunk into the support member by the tightness of the wrapping. The heat conductive material is thereby deformed to the thermistor's shape. At the same time, the top part of the thermistor is always protruded from the upper part of the support member. A holder keeps this construction in contact with the circumferential surface of the fixing roller.
Inventors
- 👤 Kiyohari C/O Konica Corporation Nakagama
- 👤 Kouichi c/o Konica Corporation Hanada
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-09 05:43
CPC Classifications
G; G01; G01K; G01K13/00; G01K13/04; G01K13/08; G03; G03G; G03G15/00; G03G15/20; G03G15/2003; G03G15/2014; G03G15/2039
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
135 words
A temperature sensing device for sensing a temperature of a fixing roller in a fixing device for fixing with heat a toner image on a recording material, said temperature sensing device comprising: (a) a temperature sensing element; (b) a resilient support member for supporting said element; (c) a heat conductive thin metal plate provided between said element and said member, a part of said plate being protruded from an outer surface of said element; and (d) a protective sheet by which at least said element, said plate and said member are integrally wound, wherein when said sensing device is kept in press contact with said roller, one side of said element is partly sunk into said member and the opposite side of said element is kept in contact with said roller through said protective sheet.
Claim 2
Dependent Claim
56 words
The temperature sensing device of claim 1 wherein said member is a foamed silicone, and said plate is one of aluminum foil, copper foil, beryllium foil and magnesium foil, and wherein when said sensing device is kept in press contact with said fixing roller, said part of said plate is kept in contact with said roller.
Claim 3
Dependent Claim
85 words
A temperature sensing device for sensing a temperature of a fixing roller in a fixing device for fixing with heat a toner image on a recording material, said temperature sensing device comprising: (a) a temperature sensing element; (b) a resilient support member for supporting said element; (c) a heat conductive film with which said member including a portion of which is in contact with said element is coated; and (d) a protective sheet by which at least said element, and said member are integrally wound.
Claim 4
Dependent Claim
91 words
A temperature sensing device for sensing a temperature of a fixing roller in a fixing device for fixing with heat a toner image on a recording material, said temperature sensing device comprising: (a) a temperature sensing element; (b) a resilient support member for supporting said element, said member having a dual layer structure consisting of a heat conductive material and a heat insulating material, wherein said element is supported by said heat conductive material; and (c) a protective sheet by which at least said element, and said member are integrally wound.
Claim 5
Dependent Claim
91 words
A temperature sensing device for sensing a temperature of a fixing roller in a fixing device for fixing with heat a toner image on a recording material, said temperature sensing device comprising: (a) a temperature sensing element; (b) a resilient support member for supporting said element, said member being in press contact with the circumferential surface of said fixing roller on an upstream and a downstream sides in a rotational direction of said roller; and (c) a protective sheet by which at least said element, and said member are integrally wound.
Claim 6
Dependent Claim
83 words
A temperature sensing device for sensing a temperature of a fixing roller in a fixing device for fixing with heat a toner image on a recording material, said temperature sensing device comprising: (a) a temperature sensing element; (b) a resilient support member for supporting said element; (c) a heat conductive filmy material with which a surface of a heat sensing portion of said element is covered; and (d) a protective sheet by which at least said element, and said member are integrally wound.
Claim 7
Dependent Claim
82 words
A temperature sensing device for sensing a temperature of a fixing roller in a fixing device for fixing with heat a toner image on a recording material, said temperature sensing device comprising: (a) a temperature sensing element; (b) a resilient support member for supporting said element; (c) a protective sheet by which at least said element, and said member are integrally wound; and (d) heat conductive sheets provided between said member and said element and between said element and said protective sheet.
References Cited (Backward Citations)
US2095877A
Cited
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