JP2003295639A5 - - Google Patents

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Publication number
JP2003295639A5
JP2003295639A5 JP2002095138A JP2002095138A JP2003295639A5 JP 2003295639 A5 JP2003295639 A5 JP 2003295639A5 JP 2002095138 A JP2002095138 A JP 2002095138A JP 2002095138 A JP2002095138 A JP 2002095138A JP 2003295639 A5 JP2003295639 A5 JP 2003295639A5
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JP
Japan
Prior art keywords
heating apparatus
image heating
voltage
roller
generation circuit
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.)
Withdrawn
Application number
JP2002095138A
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Japanese (ja)
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JP2003295639A (en
Filing date
Publication date
Application filed filed Critical
Priority to JP2002095138A priority Critical patent/JP2003295639A/en
Priority claimed from JP2002095138A external-priority patent/JP2003295639A/en
Priority to US10/396,490 priority patent/US6933480B2/en
Priority to EP03007057A priority patent/EP1349018A1/en
Priority to CNB031215858A priority patent/CN1284418C/en
Publication of JP2003295639A publication Critical patent/JP2003295639A/en
Publication of JP2003295639A5 publication Critical patent/JP2003295639A5/ja
Withdrawn legal-status Critical Current

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Claims (8)

高周波電流を通電することにより磁束を発生するコイルと、前記磁束の作用により発熱する導電体を備えたローラと、を有し、前記ローラの熱により記録材上のトナー像を加熱する像加熱装置において、前記ローラとの電気的接続により所定極性の電圧を発生する電圧発生回路を有し、前記電圧発生回路は前記コイルの電位変動に伴う前記加熱ローラの電位変動に基いて所定極性の電圧を発生させることを特徴とする像加熱装置。An image heating apparatus comprising: a coil that generates a magnetic flux when energized with a high-frequency current; and a roller having a conductor that generates heat by the action of the magnetic flux, and heats a toner image on a recording material by the heat of the roller A voltage generation circuit that generates a voltage of a predetermined polarity by electrical connection with the roller, and the voltage generation circuit generates a voltage of a predetermined polarity based on the potential fluctuation of the heating roller accompanying the potential fluctuation of the coil. An image heating apparatus, characterized by being generated. 前記所定極性の電圧を前記ローラに印加可能であることを特徴とする請求項１に記載の像加熱装置。The image heating apparatus according to claim 1, wherein the voltage having the predetermined polarity can be applied to the roller. 前記電圧発生回路は整流回路を有することを特徴とする請求項１または２に記載の像加熱装置。The image heating apparatus according to claim 1, wherein the voltage generation circuit includes a rectifier circuit. 前記電圧発生回路は接地されていることを特徴とする請求項１乃至３のいずれかに記載の像加熱装置。The image heating apparatus according to claim 1, wherein the voltage generation circuit is grounded. 前記電圧発生回路は前記像加熱装置の枠体を介して接地されていることを特徴とする請求項４に記載の像加熱装置。The image heating apparatus according to claim 4, wherein the voltage generation circuit is grounded via a frame of the image heating apparatus. 前記所定極性の電圧は前記トナーの帯電極性と同極性の電圧であることを特徴とする請求項１乃至５のいずれかに記載の像加熱装置。The image heating apparatus according to claim 1, wherein the voltage having the predetermined polarity is a voltage having the same polarity as a charging polarity of the toner. 前記高周波電流はThe high frequency current is 2020 ｋＨｚからfrom kHz 11 ＭＨｚの高周波電流であることを特徴とする請求項１乃至６のいずれかに記載の像加熱装置。The image heating apparatus according to claim 1, wherein the image heating apparatus is a high-frequency current of MHz. 前記ローラは表面に離型層を有することを特徴とする請求項１乃至７のいずれかに記載の像加熱装置。The image heating apparatus according to claim 1, wherein the roller has a release layer on a surface thereof.
JP2002095138A 2002-03-29 2002-03-29 Inductive heating device Withdrawn JP2003295639A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP2002095138A JP2003295639A (en) 2002-03-29 2002-03-29 Inductive heating device
US10/396,490 US6933480B2 (en) 2002-03-29 2003-03-26 Image heating apparatus
EP03007057A EP1349018A1 (en) 2002-03-29 2003-03-27 Image heating apparatus
CNB031215858A CN1284418C (en) 2002-03-29 2003-03-31 Image heating apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2002095138A JP2003295639A (en) 2002-03-29 2002-03-29 Inductive heating device

Publications (2)

Publication Number Publication Date
JP2003295639A JP2003295639A (en) 2003-10-15
JP2003295639A5 true JP2003295639A5 (en) 2005-09-15

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Family Applications (1)

Application Number Title Priority Date Filing Date
JP2002095138A Withdrawn JP2003295639A (en) 2002-03-29 2002-03-29 Inductive heating device

Country Status (1)

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JP (1) JP2003295639A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006195003A (en) * 2005-01-11 2006-07-27 Canon Inc Image forming apparatus and its fixing bias output circuit
JP5528053B2 (en) 2009-10-19 2014-06-25 キヤノン株式会社 Image forming apparatus

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