JP2005300840A5 - - Google Patents

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Publication number
JP2005300840A5
JP2005300840A5 JP2004115596A JP2004115596A JP2005300840A5 JP 2005300840 A5 JP2005300840 A5 JP 2005300840A5 JP 2004115596 A JP2004115596 A JP 2004115596A JP 2004115596 A JP2004115596 A JP 2004115596A JP 2005300840 A5 JP2005300840 A5 JP 2005300840A5
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JP
Japan
Prior art keywords
recording material
fixing
nip portion
temperature
image
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP2004115596A
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Japanese (ja)
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JP2005300840A (en
JP4273033B2 (en
Filing date
Publication date
Application filed filed Critical
Priority to JP2004115596A priority Critical patent/JP4273033B2/en
Priority claimed from JP2004115596A external-priority patent/JP4273033B2/en
Priority to US11/062,634 priority patent/US7215899B2/en
Priority to EP05004086.4A priority patent/EP1569048B1/en
Priority to CNB2005100529232A priority patent/CN100440069C/en
Publication of JP2005300840A publication Critical patent/JP2005300840A/en
Publication of JP2005300840A5 publication Critical patent/JP2005300840A5/ja
Application granted granted Critical
Publication of JP4273033B2 publication Critical patent/JP4273033B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Claims (2)

記録材に画像を形成する像形成手段と、記録材を挟持搬送する定着ニップ部を有し記録材上の画像を加熱定着する定着手段と、前記定着ニップ部よりも記録材移動方向下流側に配置されており駆動源により駆動される記録材搬送手段と、前記定着ニップ部よりも記録材移動方向下流側で記録材の温度を検知する温度検知手段と、を有する画像形成装置において、
前記記録材搬送手段の記録材搬送速度は前記定着手段の記録材搬送速度より高速に設定されており、前記温度検知手段の温度検知部は、記録材の片面プリント時の画像面側とは反対側の面に接触するように配置されており、前記温度検知部が記録材と接触した状態で記録材の画像面側の少なくとも前記温度検知部に対応する領域には記録材に接触する対向部材がなく、前記温度検知手段の温度検知部は前記定着手段の定着ニップ部と前記記録材搬送手段のニップ部を結ぶ仮想直線よりも記録材の片面プリント時の画像面側のエリアに突出していることを特徴とする画像形成装置。 Image forming means for forming an image on the recording material, fixing means for fixing the image on the recording material by heating with a fixing nip portion for nipping and conveying the recording material, and downstream of the fixing nip portion in the recording material moving direction In an image forming apparatus comprising: a recording material conveying unit that is disposed and driven by a driving source; and a temperature detection unit that detects the temperature of the recording material downstream of the fixing nip portion in the recording material movement direction.
The recording material conveying speed of the recording material conveying means is set to be higher than the recording material conveying speed of the fixing means, and the temperature detecting portion of the temperature detecting means is opposite to the image surface side during single-sided printing of the recording material. An opposing member that contacts the recording material in an area corresponding to at least the temperature detecting portion on the image surface side of the recording material in a state where the temperature detecting portion is in contact with the recording material. Gana rather, the temperature sensing portion of the temperature sensing means projects the image surface side area of the single-sided printing of the recording material to the virtual straight line which fixing nip portion and connecting the nip portion of the recording material conveying means of the fixing means image forming apparatus characterized by there. 前記温度検知手段の温度検知部は前記定着手段の定着ニップ部と前記記録材搬送手段のニップ部の両方に挟持されている状態の記録材から力を受けて移動可能となっていることを特徴とする請求項１に記載の画像形成装置。The temperature detection unit of the temperature detection unit is movable by receiving a force from a recording material sandwiched between both the fixing nip portion of the fixing unit and the nip portion of the recording material conveying unit. The image forming apparatus according to claim 1.
JP2004115596A 2004-02-27 2004-04-09 Image forming apparatus Expired - Fee Related JP4273033B2 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP2004115596A JP4273033B2 (en) 2004-04-09 2004-04-09 Image forming apparatus
US11/062,634 US7215899B2 (en) 2004-02-27 2005-02-23 Image forming apparatus having temperature sensing element for sensing temperature of recording material
EP05004086.4A EP1569048B1 (en) 2004-02-27 2005-02-24 Image forming appartus having temperature sensing element for sensing temperature of recording material
CNB2005100529232A CN100440069C (en) 2004-02-27 2005-02-28 Image-forming apparatus with a detector unit for detecting the temperature of a recording medium

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2004115596A JP4273033B2 (en) 2004-04-09 2004-04-09 Image forming apparatus

Publications (3)

Publication Number Publication Date
JP2005300840A JP2005300840A (en) 2005-10-27
JP2005300840A5 true JP2005300840A5 (en) 2007-05-31
JP4273033B2 JP4273033B2 (en) 2009-06-03

Family

ID=35332462

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2004115596A Expired - Fee Related JP4273033B2 (en) 2004-02-27 2004-04-09 Image forming apparatus

Country Status (1)

Country Link
JP (1) JP4273033B2 (en)

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