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絶縁性の基材と；前記基材上に形成された抵抗発熱体層と；前記基材上に形成され、一端が前記抵抗発熱体層の一端に接続された第１の電極層と、前記第１の電極層上に形成され、一端が前記第１の電極層の他端上に存在し、かつ他端が前記抵抗発熱体層の一端から１０〜９０μｍ離れた位置に存在した第２の電極層とを有する一対の電極部と；前記抵抗発熱体層上に形成された、前記抵抗発熱体層を保護する絶縁層と；を具備することを特徴とするヒータ。 An insulating base material; a resistance heating element layer formed on the base material; a first electrode layer formed on the base material and having one end connected to one end of the resistance heating element layer; A second electrode formed on the first electrode layer, having one end on the other end of the first electrode layer and the other end existing at a position 10 to 90 μm away from one end of the resistance heating element layer; A heater comprising: a pair of electrode portions each having an electrode layer; and an insulating layer formed on the resistance heating element layer for protecting the resistance heating element layer. 請求項１記載のヒータであって、前記抵抗発熱体層の厚さが８〜１３μｍであり、前記第１の電極層の厚さが８〜１７μｍであり、前記第２の電極層の厚さが８〜１７μｍであることを特徴とするヒータ。 2. The heater according to claim 1, wherein the resistance heating element layer has a thickness of 8 to 13 μm, the first electrode layer has a thickness of 8 to 17 μm, and the thickness of the second electrode layer. Is a heater of 8 to 17 μm. 請求項１又は２記載のヒータであって、前記抵抗発熱体層の一端が前記第１の電極層上に存在し、前記第２の電極層の一部が前記絶縁層で覆われており、かつ前記基材から前記第２の電極層の上面までの高さが前記基材から前記抵抗発熱体層の頂部までの高さより小さいことを特徴とするヒータ。 The heater according to claim 1 or 2, wherein one end of the resistance heating element layer is present on the first electrode layer, and a part of the second electrode layer is covered with the insulating layer, And the heater from the said base material to the upper surface of the said 2nd electrode layer is smaller than the height from the said base material to the top part of the said resistance heating element layer, The heater characterized by the above-mentioned. 請求項１又は２記載のヒータであって、前記第１の電極層の一端が前記抵抗発熱体層上に存在し、前記第２の電極層の一部が前記絶縁層で覆われており、かつ前記基材から前記第２の電極層の上面までの高さが前記基材から前記第１の電極層の頂部までの高さより小さいことを特徴とするヒータ。 The heater according to claim 1 or 2, wherein one end of the first electrode layer exists on the resistance heating element layer, and a part of the second electrode layer is covered with the insulating layer, And the heater from the said base material to the upper surface of the said 2nd electrode layer is smaller than the height from the said base material to the top part of the said 1st electrode layer, The heater characterized by the above-mentioned. 感光体と、前記感光体を帯電させる帯電手段と、前記感光体に光を照射して前記感光体に静電潜像を形成する露光手段と、前記静電潜像にトナーを付着させてトナー像を形成する現像手段と、前記トナーを記録媒体に付着させて前記トナー像を前記記録媒体に転写する転写手段とを備えた、前記記録媒体に画像を形成する画像形成部と；前記記録媒体に付着した前記トナーを加熱して、溶融させる請求項１乃至４のいずれか１項に記載のヒータと、前記ヒータを支持する支持部材と、前記ヒータに前記記録媒体を圧接させ、かつ前記記録媒体を搬送する加圧ローラとを備えた、前記記録媒体に前記トナーを定着させるトナー定着部と；前記画像形成部に前記記録媒体を供給する記録媒体供給部と；前記画像形成部から前記トナー定着部に前記記録媒体を搬送する記録媒体搬送部と；を具備することを特徴とする画像形成装置。 A photosensitive member; a charging unit that charges the photosensitive member; an exposure unit that irradiates the photosensitive member with light to form an electrostatic latent image on the photosensitive member; and a toner that adheres toner to the electrostatic latent image An image forming unit for forming an image on the recording medium, comprising: a developing unit that forms an image; and a transfer unit that transfers the toner image to the recording medium by attaching the toner to the recording medium; 5. The heater according to claim 1, wherein the toner adhering to the toner is heated and melted, a support member that supports the heater, the recording medium is pressed against the heater, and the recording is performed. A toner fixing section that fixes the toner onto the recording medium; a recording medium supply section that supplies the recording medium to the image forming section; and a toner from the image forming section. In the fixing part An image forming apparatus characterized by comprising a; and a recording medium conveying unit that conveys the recording medium.
JP2001333203A2001-10-302001-10-30Heater and image forming device
PendingJP2003142232A
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