JPH02208679A - Fixing device - Google Patents
Fixing deviceInfo
- Publication number
- JPH02208679A JPH02208679A JP1029422A JP2942289A JPH02208679A JP H02208679 A JPH02208679 A JP H02208679A JP 1029422 A JP1029422 A JP 1029422A JP 2942289 A JP2942289 A JP 2942289A JP H02208679 A JPH02208679 A JP H02208679A
- Authority
- JP
- Japan
- Prior art keywords
- fixing device
- rotating body
- fixing
- toner image
- guide
- 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
Links
- 238000000926 separation method Methods 0.000 claims abstract description 35
- 239000000463 material Substances 0.000 claims abstract description 28
- 125000006850 spacer group Chemical group 0.000 abstract description 16
- 230000006866 deterioration Effects 0.000 abstract description 2
- 210000000078 claw Anatomy 0.000 description 4
- 239000010410 layer Substances 0.000 description 3
- 239000011347 resin Substances 0.000 description 3
- 229920005989 resin Polymers 0.000 description 3
- 239000002344 surface layer Substances 0.000 description 3
- 230000002411 adverse Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229910052736 halogen Inorganic materials 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 229920002379 silicone rubber Polymers 0.000 description 1
- 239000004945 silicone rubber Substances 0.000 description 1
Landscapes
- Fixing For Electrophotography (AREA)
- Separation, Sorting, Adjustment, Or Bending Of Sheets To Be Conveyed (AREA)
Abstract
Description
【発明の詳細な説明】
[産業上の利用分野]
本発明は複写機、電子写真プリンタ等に使用されトナー
像を定着するための定着装置に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a fixing device used in copying machines, electrophotographic printers, etc., for fixing toner images.
[従来技術] 従来の定着装置を第15図に示す。[Prior art] A conventional fixing device is shown in FIG.
lは内部にヒータ7を有するヒートローラ、11はヒー
トローラlと圧接する加圧ローラである。1 is a heat roller having a heater 7 therein, and 11 is a pressure roller that is in pressure contact with the heat roller 1.
未定着トナー像を支持する支持材は未定着トナー像面を
ヒートローラ側にしてローラ対間に送られ熱と圧力によ
り定着される。The support material supporting the unfixed toner image is sent between a pair of rollers with the unfixed toner image surface facing the heat roller, and is fixed by heat and pressure.
20はヒートローラ1に支持材に巻きつくのを防止する
回転軸5を中心に回動可能な分離爪でバネ6によりヒー
トローラに圧接されている。Reference numeral 20 denotes a separating claw which is rotatable about a rotating shaft 5 to prevent the heat roller 1 from being wrapped around the supporting material, and is pressed against the heat roller by a spring 6.
尚、12.13は入口ガイド、14は出口ガイドである
。Note that 12 and 13 are entrance guides, and 14 is an exit guide.
[発明が解決する問題点]
このような従来例では分離爪20がヒートローラ1と圧
接していることにより、分離爪20によってヒートロー
ラ1にキズが発生することがあった。[Problems to be Solved by the Invention] In such a conventional example, since the separation claw 20 is in pressure contact with the heat roller 1, the heat roller 1 may be scratched by the separation claw 20.
また、ヒートローラ1にオフセットした爪先端にたまり
、トナーが汚れたり分離不良が生ずるという問題があっ
た。Further, there is a problem in that the toner accumulates on the tip of the nail offset to the heat roller 1, causing toner to become dirty or to cause poor separation.
更に、前述した従来例では入口ガイド、出口ガイドを有
しているが、これらガイドとローラとの位置関係は支持
材のしわ、カールの発生等を防止するためには非常に重
要であり、非常に高精度な位置決め作業が必要であった
。Furthermore, although the conventional example described above has an entrance guide and an exit guide, the positional relationship between these guides and the rollers is very important in order to prevent the support material from wrinkling or curling. This required highly accurate positioning work.
[問題点を解決する手段]
上記問題点を解決する本発明は、トナー像支持材上のト
ナー像を定着するための定着用回転体と、この定着用回
転体と近接して配置されトナー像支持材を案内する案内
ガイドと、を有する定着装置において、上記案内ガイド
は最大画像領域外で上記定着用回転体と接触する突当部
を有することを特徴とするもの、及び未定着トナー像を
支持する支持材を挟持搬送することによりトナー像を定
着する回転体対を有する定着装置において、上記回転体
対の未定着トナー像と接する側の回転体の母線方向と平
行に微小間隙をもって設けられた分離ガイドを有し、こ
の分離ガイドにより回転体から支持材を分離することを
特徴とするものである。[Means for Solving the Problems] The present invention, which solves the above problems, includes a fixing rotary body for fixing a toner image on a toner image support material, and a toner image disposed adjacent to the fixing rotary body. A fixing device having a guide guide for guiding a support material, wherein the guide guide has an abutment part that contacts the fixing rotating body outside the maximum image area, and In a fixing device having a pair of rotating bodies that fixes a toner image by nipping and conveying a supporting material to be supported, the fixing device is provided with a minute gap parallel to the generatrix direction of the rotating body on the side of the pair of rotating bodies that is in contact with the unfixed toner image. The present invention is characterized in that it has a separating guide, and the supporting material is separated from the rotating body by the separating guide.
[実施例] 以下本発明の実施例を図面に基づき説明する。[Example] Embodiments of the present invention will be described below based on the drawings.
尚、同一機能を果たす部材には同一番号を符しである。Note that members that perform the same functions are designated by the same numbers.
第1図は本発明の実施の定着装置の正面断面図、第2図
は第1図実施例の側面断面図である。FIG. 1 is a front sectional view of a fixing device according to an embodiment of the present invention, and FIG. 2 is a side sectional view of the embodiment shown in FIG.
1は表層として離型性に優れたフッ素樹脂層を有するヒ
ートローラ、2はトナー像を支持する支持材Pをヒート
ローラよりひきはがすための分離ガイド、3は分離ガイ
ド2をバネで弾性的に支持するための段ビス、4はヒー
トローラ1と分離ガイド2の端部に設けられ微小間隙t
を安定させるための突ぎ当てスペーサで分離ガイド2に
固定されており、耐熱性がありかつ摺動性の良い材質で
あ。5は分離ガイド2を回動可能にさせるための回動支
点、6は分離ガイド2を弾性的に支持しているバネ、7
はヒートローラ1に熱を供給するハロゲンヒータ、8は
ヒートローラの軸受、9はヒートローラlを駆動するた
めのギアで図示しない駆動部より駆動される。1 is a heat roller having a fluororesin layer with excellent mold releasability as a surface layer; 2 is a separation guide for peeling off the support material P that supports the toner image from the heat roller; 3 is a separation guide 2 that is made elastic with a spring. A step screw 4 for supporting is provided at the end of the heat roller 1 and the separation guide 2 to form a small gap t.
It is fixed to the separation guide 2 with an abutting spacer to stabilize the separation guide 2, and is made of a material that is heat resistant and has good sliding properties. Reference numeral 5 denotes a rotation fulcrum for making the separation guide 2 rotatable, 6 a spring elastically supporting the separation guide 2, and 7
1 is a halogen heater that supplies heat to the heat roller 1, 8 is a bearing for the heat roller, and 9 is a gear for driving the heat roller 1, which is driven by a drive section (not shown).
10はヒートローラの軸方向の移動を規制するストッパ
ー 11はヒートローラ1と対向圧接する加圧ローラで
シリコンゴムからなる弾性層を有する。10 is a stopper that restricts the movement of the heat roller in the axial direction. 11 is a pressure roller that is in pressure contact with the heat roller 1 and has an elastic layer made of silicone rubber.
12.13はローラ対へのトナー像支持月の搬入を案内
する入りロガイド、14はローラ対からのトナー像支持
材の搬出を案内する出口ガイド、15.16は定着器の
フレームである。Reference numerals 12 and 13 denote an entry guide for guiding the toner image supporting material into the roller pair, 14 an exit guide for guiding the toner image supporting material to be carried out from the roller pair, and 15 and 16 a frame of the fixing device.
第3図は分離ガイド2の斜視図である。FIG. 3 is a perspective view of the separation guide 2. FIG.
分離ガイド2は支点5が定着器のフレーム16と当たっ
ておりヒートローラ1の両側端部の突き当てスペーサ4
との3点にて、。バネ6を介して段ビス3により支持さ
れている。The separation guide 2 has a fulcrum 5 in contact with the frame 16 of the fixing device, and abutment spacers 4 at both ends of the heat roller 1.
In three points. It is supported by a stepped screw 3 via a spring 6.
突き当てスペーサ4はヒートローラ1の端部で支持材上
に未定着トナー像が形成できる最大画像幅外で、最大サ
イズの支持材の最端部近傍に対応する部分に設けられて
いる。The abutment spacer 4 is provided at the end of the heat roller 1 at a portion corresponding to the vicinity of the outermost end of the maximum size support material outside the maximum image width in which an unfixed toner image can be formed on the support material.
尚、本実施例ではスペーサ4を最大サイズの支持材の最
端部にまたがって設けることでスペーサ4部分で分離能
力を向上させている。In this embodiment, the spacer 4 is provided across the end of the largest support material, thereby improving the separation ability at the spacer 4 portion.
スペーサ4によって確保される微小間隙tが小さくなる
とオフセットトナーがたまる恐れがあり、逆に大きくな
ると分離能力が低下する。If the minute gap t secured by the spacer 4 becomes small, offset toner may accumulate, and if it becomes large, the separation ability will decrease.
このため微小間隙tは0.1〜0.6mmが好ましい。Therefore, the minute gap t is preferably 0.1 to 0.6 mm.
第4図、第5図に本実施例の動作を説明する。The operation of this embodiment will be explained with reference to FIGS. 4 and 5.
第4図に示すように、支持材P上の未定着トナーはロー
ラ対間のニップで熱と圧力を加えられ定着される。As shown in FIG. 4, the unfixed toner on the support material P is fixed by applying heat and pressure in the nip between the pair of rollers.
転写紙Pに定着される。この際支持材Pはヒートローラ
1に密着するが先端はわずかに、ヒートローラ1より離
れており分離ガイド2の先端により支持材Pはヒートロ
ーラ1からひきはがされ図示しない排紙部へ導かれる(
第5図)。It is fixed on the transfer paper P. At this time, the support material P comes into close contact with the heat roller 1, but the tip is slightly away from the heat roller 1, and the support material P is peeled off from the heat roller 1 by the tip of the separation guide 2 and guided to a paper discharge section (not shown). It will be (
Figure 5).
このように、本実施例では直径の小さなヒートローラに
特に有効であり、直径30mm以下のヒートローラの場
合非°常に有効である。As described above, this embodiment is particularly effective for heat rollers having a small diameter, and is very effective for heat rollers having a diameter of 30 mm or less.
前述実施例では゛ヒートローラに対して突籾当でスペー
サ4は摺擦しているが、長期に使用するとこの摺擦によ
りヒートローラの4のキズが発生する。In the above-mentioned embodiment, the spacer 4 is rubbed against the heat roller by the bumper contact, but if used for a long period of time, this rubbing will cause scratches 4 on the heat roller.
最大画像領域外であるためキズが発生しても定着画像に
は何ら悪影響を与えない。Since it is outside the maximum image area, even if a scratch occurs, it will not have any adverse effect on the fixed image.
しかし、摩耗が発生し、この摩耗が非常に大きくなると
微小間ISI tにわずかな狂いが生じてくる。However, if wear occurs and this wear becomes very large, a slight deviation will occur in the ISI t between the small holes.
このため、ヒートローラ1のスペーサ4が接触する部分
も離型性に優れた表面層、特にフッ素樹脂層を設けるこ
とが好ましい。For this reason, it is preferable that the portion of the heat roller 1 in contact with the spacer 4 also be provided with a surface layer having excellent mold releasability, particularly a fluororesin layer.
更には、スペーサ4のヒートローラ1と接触する表面も
フッ素樹脂で被覆することも好ましい。Furthermore, it is also preferable that the surface of the spacer 4 that comes into contact with the heat roller 1 is coated with a fluororesin.
次に、第6図に本発明の別の実施例を示す。Next, FIG. 6 shows another embodiment of the present invention.
本実施例では分離ガイド端部のスペーサとして回転する
コロ24を用い、ヒートローラ1に対して従動回転させ
ている。In this embodiment, a rotating roller 24 is used as a spacer at the end of the separation guide, and is rotated as a result of the heat roller 1.
これにより摩耗の問題は何ら発生しない。This does not cause any wear problems.
また、樹脂は熱変形し易く、分離ガイドか樹脂製の場合
、スペーサにより微小間隙を保障することは特に有効で
あり、人口ガイドに適用することも非常に好・ましい。In addition, resin is easily deformed by heat, and when the separation guide is made of resin, it is particularly effective to ensure a minute gap with a spacer, and it is also very preferable to apply it to an artificial guide.
次に第7図乃至第9図に本発明の別の実施例を示す。Next, another embodiment of the present invention is shown in FIGS. 7 to 9.
第7図は正面断面図、第8図は中央断面図、第9図は側
部断面図である。FIG. 7 is a front sectional view, FIG. 8 is a central sectional view, and FIG. 9 is a side sectional view.
本実施例では、分離ガイド2を支点25を中心として引
張りバネ6によりヒートローラ1に近接させている。In this embodiment, the separation guide 2 is brought close to the heat roller 1 by means of a tension spring 6 with the fulcrum 25 as the center.
また、分離ガイドの少なくともヒートローラ1への近接
部に複数のリブ21を設け、このリブにより支持材の分
離を行なう。Further, a plurality of ribs 21 are provided at least in the vicinity of the heat roller 1 of the separation guide, and the support material is separated by the ribs.
このようなリブで分離を行なうことで、分離ガイドとト
ナー像が接触する部分を少くすることができる。By performing separation using such ribs, it is possible to reduce the contact area between the separation guide and the toner image.
第10図は本発明の他の実施例でヒートローラ1にスペ
ーサ41を設けている。FIG. 10 shows another embodiment of the present invention in which a spacer 41 is provided on the heat roller 1.
第11図は本発明の他の実施例で独立してスペーサ42
を設けている。FIG. 11 shows another embodiment of the present invention in which spacers 42
has been established.
第12図も本発明の別の実施例で軸受8に分離ガイド2
を突当ることで微小間隙を保障している。FIG. 12 also shows another embodiment of the present invention, in which a separation guide 2 is attached to a bearing 8.
A minute gap is guaranteed by hitting the surface.
第13図は本発明の更に別の実施例でヒートローラ1の
表面層を一部厚くしく181)、この181により微小
間隙を保障している。FIG. 13 shows yet another embodiment of the present invention, in which the surface layer of the heat roller 1 is partially thickened 181), and this 181 ensures a minute gap.
第14図も本発明の更に別の実施例で樹脂の射出成形か
らなる分離ガイドに射出成形時にスペーサ部を形成して
いる。FIG. 14 also shows yet another embodiment of the present invention, in which a spacer portion is formed during injection molding on a separation guide made of injection molded resin.
[効果]
以上本発明では、ローラ、ベルト等の定着用回転体に微
小間隙をもって近接させた分離ガイドによりトナー像支
持材を分離しているため、回転体に圧接する分離爪が不
要となり、分離爪にょるキズの発生、像劣化の問題を解
消できる。[Effects] In the present invention, the toner image support material is separated by a separation guide that is placed close to the fixing rotating body such as a roller or belt with a small gap, so there is no need for a separating claw that presses against the rotating body, and separation is easily achieved. Eliminates the problem of scratches caused by nails and image deterioration.
また、最大画像領域で回転体に突き当て、微小間隙を保
障しているため、簡単に精度の良い間隙量が得られると
共に、回転体にキズが発生しても定着トナー像に悪影響
を与えることはない。In addition, since the maximum image area abuts against the rotating body to ensure a minute gap, it is easy to obtain a highly accurate gap amount, and even if the rotating body is scratched, it will not adversely affect the fixed toner image. There isn't.
第1図は本発明の実施例を示す正面断面図、第2図は第
1図実施例の側面断面図、
第3図は分離ガイドの斜視図、
第4図、第5図は第1図乃至第3図実施例の動作を示す
断面図、
第6図は本発明の別の実施例を示す部分斜視図、
第7図は本発明の更に別の実施例を示す正面断面図、
第8図は第7図実施例の中央断面部、
第9図は第7図実施例の側部断面部、
第10図乃至第14図は夫々、本発明の別の実施例を示
す断面図、
第15図は従来の定着装置を示す断面図である。
図において
1はヒートローラ
2は分離ガイド
4はスペーサ
5は段ビス
6はバネ
】1は加圧口−ラ
第4図
第5岡Fig. 1 is a front sectional view showing an embodiment of the present invention, Fig. 2 is a side sectional view of the embodiment shown in Fig. 1, Fig. 3 is a perspective view of the separation guide, and Figs. 3 to 3 are sectional views showing the operation of the embodiment; FIG. 6 is a partial perspective view showing another embodiment of the present invention; FIG. 7 is a front sectional view showing still another embodiment of the invention; 9 is a side sectional view of the embodiment shown in FIG. 7. FIGS. 10 to 14 are sectional views showing other embodiments of the present invention. FIG. 15 is a sectional view showing a conventional fixing device. In the figure, 1 is a heat roller 2 is a separation guide 4 is a spacer 5 is a step screw 6 is a spring] 1 is a pressure opening
Claims (8)
着用回転体と、この定着用回転体と近接して配置されト
ナー像支持材を案内する案内ガイドと、を有する定着装
置において、 上記案内ガイドは最大画像領域外で上記定着用回転体と
接触する突当部を有することを特徴とする定着装置。(1) A fixing device having a fixing rotating body for fixing a toner image on a toner image supporting material, and a guide disposed in close proximity to the fixing rotating body for guiding the toner image supporting material, A fixing device characterized in that the guide has an abutment portion that comes into contact with the fixing rotating body outside the maximum image area.
であることを特徴とする特許請求の範囲第1項記載の定
着装置。(2) The fixing device according to claim 1, wherein the abutting portion is a rotating body that rotates following the fixing rotating body.
樹脂で被覆されていることを特徴とする特許請求の範囲
第1項もしくは第2項記載の定着装置。(3) The fixing device according to claim 1 or 2, wherein the surface of the abutting portion that comes into contact with the fixing rotating body is coated with a fluororesin.
ることを特徴とする特許請求の範囲第1項乃至第3項記
載の定着装置。(4) The fixing device according to any one of claims 1 to 3, wherein the abutment portions are provided at both ends of the guide.
ことによりトナー像を定着する回転体対を有する定着装
置において、 上記回転体対の未定着トナー像と接する側の回転体の母
線方向と平行に微小間隙をもって設けられた分離ガイド
を有し、この分離ガイドにより回転体から支持材を分離
することを特徴とする定着装置。(5) In a fixing device having a pair of rotating bodies that fixes a toner image by nipping and conveying a supporting material that supports the unfixed toner image, the generatrix direction of the rotating body on the side of the pair of rotating bodies that is in contact with the unfixed toner image. 1. A fixing device comprising a separation guide provided with a small gap in parallel with the rotating body, the separation guide separating a support material from a rotating body.
よって加熱され未定着トナーを溶融することを特徴とす
る特許請求の範囲第5項記載の定着装置。(6) The fixing device according to claim 5, wherein the rotating body on the side in contact with the unfixed toner image is heated by a heat source to melt the unfixed toner.
接触することで画像領域における微小間隙が保障される
ことを特徴とする特許請求の範囲第5項もしくは第6項
記載の定着装置。(7) The fixing device according to claim 5 or 6, wherein the separation guide comes into contact with the rotating body outside the maximum image area to ensure a minute gap in the image area.
特徴とする特許請求の範囲第5項乃至第7項記載の定着
装置。(8) The fixing device according to any one of claims 5 to 7, wherein the minute gap is 0.1 to 0.6 mm.
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1029422A JP2823168B2 (en) | 1989-02-08 | 1989-02-08 | Fixing device |
KR1019900001424A KR930008609B1 (en) | 1989-02-08 | 1990-02-06 | Image fixing apparatus |
ES90102410T ES2070938T3 (en) | 1989-02-08 | 1990-02-07 | APPARATUS FOR FIXING IMAGES. |
DE69019008T DE69019008T2 (en) | 1989-02-08 | 1990-02-07 | Image fixing device. |
EP90102410A EP0382189B1 (en) | 1989-02-08 | 1990-02-07 | An image fixing apparatus |
CN90100611A CN1035791C (en) | 1989-02-08 | 1990-02-08 | Fixing apparatus |
US07/818,451 US5293202A (en) | 1989-02-08 | 1992-01-03 | Image fixing apparatus |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1029422A JP2823168B2 (en) | 1989-02-08 | 1989-02-08 | Fixing device |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP34347396A Division JPH09197885A (en) | 1996-12-24 | 1996-12-24 | Fixing device |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH02208679A true JPH02208679A (en) | 1990-08-20 |
JP2823168B2 JP2823168B2 (en) | 1998-11-11 |
Family
ID=12275695
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1029422A Expired - Fee Related JP2823168B2 (en) | 1989-02-08 | 1989-02-08 | Fixing device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2823168B2 (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH06175526A (en) * | 1992-12-08 | 1994-06-24 | Ricoh Co Ltd | Fixing device |
JP2008009097A (en) * | 2006-06-29 | 2008-01-17 | Kyocera Mita Corp | Fixing device and image forming apparatus equipped therewith |
US7398044B2 (en) | 2003-09-16 | 2008-07-08 | Brother Kogyo Kabushiki Kaisha | Fixing device |
JP2009122632A (en) * | 2007-10-24 | 2009-06-04 | Ricoh Co Ltd | Fixing device, image forming apparatus, and separating member |
US8831492B2 (en) | 2011-10-27 | 2014-09-09 | Canon Kabushiki Kaisha | Image heating apparatus |
US8923738B2 (en) | 2012-04-27 | 2014-12-30 | Canon Kabushiki Kaisha | Image heating apparatus, fixing apparatus and image forming apparatus |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5370827A (en) * | 1976-12-07 | 1978-06-23 | Ricoh Co Ltd | Twine preventing device used for fixing |
JPS5381241A (en) * | 1976-12-27 | 1978-07-18 | Ricoh Co Ltd | Fixing roller device for electronic copying machine |
JPS5414245A (en) * | 1977-07-04 | 1979-02-02 | Ricoh Co Ltd | Separator for copy sheet |
-
1989
- 1989-02-08 JP JP1029422A patent/JP2823168B2/en not_active Expired - Fee Related
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5370827A (en) * | 1976-12-07 | 1978-06-23 | Ricoh Co Ltd | Twine preventing device used for fixing |
JPS5381241A (en) * | 1976-12-27 | 1978-07-18 | Ricoh Co Ltd | Fixing roller device for electronic copying machine |
JPS5414245A (en) * | 1977-07-04 | 1979-02-02 | Ricoh Co Ltd | Separator for copy sheet |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH06175526A (en) * | 1992-12-08 | 1994-06-24 | Ricoh Co Ltd | Fixing device |
US7398044B2 (en) | 2003-09-16 | 2008-07-08 | Brother Kogyo Kabushiki Kaisha | Fixing device |
JP2008009097A (en) * | 2006-06-29 | 2008-01-17 | Kyocera Mita Corp | Fixing device and image forming apparatus equipped therewith |
JP2009122632A (en) * | 2007-10-24 | 2009-06-04 | Ricoh Co Ltd | Fixing device, image forming apparatus, and separating member |
US8831492B2 (en) | 2011-10-27 | 2014-09-09 | Canon Kabushiki Kaisha | Image heating apparatus |
US8923738B2 (en) | 2012-04-27 | 2014-12-30 | Canon Kabushiki Kaisha | Image heating apparatus, fixing apparatus and image forming apparatus |
Also Published As
Publication number | Publication date |
---|---|
JP2823168B2 (en) | 1998-11-11 |
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