JPS63281180A - Fixing device - Google Patents
Fixing deviceInfo
- Publication number
- JPS63281180A JPS63281180A JP11577887A JP11577887A JPS63281180A JP S63281180 A JPS63281180 A JP S63281180A JP 11577887 A JP11577887 A JP 11577887A JP 11577887 A JP11577887 A JP 11577887A JP S63281180 A JPS63281180 A JP S63281180A
- Authority
- JP
- Japan
- Prior art keywords
- far infrared
- halogen lamp
- infrared radiation
- lamp heater
- recording material
- 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.)
- Pending
Links
- 239000000463 material Substances 0.000 claims abstract description 26
- 229910052736 halogen Inorganic materials 0.000 claims abstract description 24
- 150000002367 halogens Chemical class 0.000 claims abstract description 24
- 238000010438 heat treatment Methods 0.000 claims abstract description 11
- 239000000126 substance Substances 0.000 claims abstract description 9
- 239000011521 glass Substances 0.000 claims abstract description 3
- 230000005855 radiation Effects 0.000 abstract description 9
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 abstract description 6
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 abstract description 5
- 229910052721 tungsten Inorganic materials 0.000 abstract description 5
- 239000010937 tungsten Substances 0.000 abstract description 5
- 229910001120 nichrome Inorganic materials 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 239000003990 capacitor Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 235000019738 Limestone Nutrition 0.000 description 1
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 description 1
- 239000003610 charcoal Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000006028 limestone Substances 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 235000014692 zinc oxide Nutrition 0.000 description 1
- 239000011787 zinc oxide Substances 0.000 description 1
Landscapes
- Fixing For Electrophotography (AREA)
- Resistance Heating (AREA)
Abstract
Description
【発明の詳細な説明】
(産業上の利用分野)
本発明は、電子写真装置の定着技術の分野において利用
され、特に未定着トナー像をもつ記録材を非接触加熱し
て熱定着する定着装置に関する。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention is utilized in the field of fixing technology for electrophotographic devices, and particularly relates to a fixing device that thermally fixes a recording material having an unfixed toner image by non-contact heating. Regarding.
(従来の技術及び問題点)
電子写真装置の定着において、未定着トナー像をもつ記
録材を非接触加熱する熱定着装置が広く知られているが
、これには従来チャンバ一定着器、熱ローラ定着器、フ
ラッシュ定着器等があるがいづれも問題点を有している
。(Prior Art and Problems) In the fixing of electrophotographic devices, a thermal fixing device that non-contactly heats a recording material with an unfixed toner image is widely known. There are fixing devices, flash fixing devices, etc., but all of them have problems.
先ず、チャンバ一定着器であるが、これはシーズヒータ
を有していてこれを赤熱しその熱で記録材を加熱してト
ナーを溶融せしめることにより定着している。しかし、
シーズヒータ自体が熱効率がよくない上に、その放射熱
の多くが記録材以外に放射してしまい、エネルギロスが
多かった。First, there is a chamber fixing device, which has a sheathed heater that heats the toner to red heat, heats the recording material with the heat, and fixes the toner by heating it and melting the toner. but,
Not only does the sheathed heater itself have poor thermal efficiency, but much of its radiant heat is radiated to areas other than the recording material, resulting in a large amount of energy loss.
また、加熱源を内蔵せるローラに記録材を圧接する熱ロ
ーラ定着器ではローラを通じての熱の逃げの問題を有し
ており、さりとて、予め記録材を加熱して次にローラに
よって圧接する形態をとっても、上記チャンバ定着器と
同様の問題をかかえることとなる。さらに、フラッシュ
定着器においては、閃光ランプに瞬間的に高電圧を印加
して発光させるために大型のコンデンサを必要として、
装置の大型を招くと共に、コンデンサの充電時間のため
に高速化か困難となる。In addition, thermal roller fixing devices that press the recording material against a roller with a built-in heating source have the problem of heat escaping through the roller. The problem is very similar to that of the chamber fixing device described above. Furthermore, flash fixing devices require large capacitors to instantaneously apply high voltage to the flash lamp to cause it to emit light.
This increases the size of the device and makes it difficult to increase the speed due to the charging time of the capacitor.
(問題点を解決するための手段)
本発明は、上述の問題点を解決し、非接触加熱において
その熱効率を向上させることのできる定着装置を提供す
ることをその目的とする。(Means for Solving the Problems) An object of the present invention is to provide a fixing device that can solve the above-mentioned problems and improve its thermal efficiency in non-contact heating.
本発明は、上記目的の達成のために、
未定着トナー像をもつ記録材を非接触加熱して熱定着す
る装置において、
非接触加熱用の熱源は、ガラス管表面に遠赤外線放射物
質を有するハロゲンランプヒータで成り。To achieve the above object, the present invention provides an apparatus for thermally fixing a recording material having an unfixed toner image by non-contact heating, wherein the heat source for non-contact heating has a far-infrared emitting substance on the surface of the glass tube. Consists of a halogen lamp heater.
上記ハロゲンランプヒータの周囲に、上記遠赤外線放射
物質より放射される遠赤外線を上記記録材の表面に向け
て反射する反射手段を配した、ことにより構成される。It is constructed by disposing a reflecting means around the halogen lamp heater to reflect far infrared rays emitted from the far infrared ray emitting substance toward the surface of the recording material.
(実施例)
以下、添付図面にもとづいて本発明の一実施例装置を説
明する。(Embodiment) Hereinafter, a device according to an embodiment of the present invention will be described based on the accompanying drawings.
第1図は熱源としてのハロゲンランプヒータの長手方向
の軸に対して直角な面での本実施例装置の断面図、第2
図は第1図のハロゲンランプヒータの上記軸を含む面で
の断面図である。Figure 1 is a sectional view of the device of this embodiment taken in a plane perpendicular to the longitudinal axis of the halogen lamp heater as a heat source;
This figure is a sectional view of the halogen lamp heater of FIG. 1 taken along a plane including the axis.
第1図において、lはハロゲンランプヒータでその上方
には該ハロゲンランプヒータを覆う形態の反射板2が配
設されている。In FIG. 1, reference numeral 1 denotes a halogen lamp heater, and a reflector plate 2 is disposed above the halogen lamp heater to cover the halogen lamp heater.
ハロゲンランプヒータ2は、第2図のごとく、密封され
た石英ガラス管5の両端に電極7を有し、内部には両電
極を結ぶタングステンフィラメント6が配されている。As shown in FIG. 2, the halogen lamp heater 2 has electrodes 7 at both ends of a sealed quartz glass tube 5, and a tungsten filament 6 connecting the two electrodes is arranged inside.
上記石英ガラス管5の表面には、遠赤外線放射物質層8
が設けられている。該遠赤外線放射物質としては、例え
ば、ベタライト75%、炭醜リチウム8.4%、石灰石
7.0%、亜鉛華2.8%そして水酸化アルミニウム6
.8%等から成る物質が用いられる。A far-infrared emitting material layer 8 is provided on the surface of the quartz glass tube 5.
is provided. Examples of the far-infrared emitting substance include betalite 75%, charcoal lithium 8.4%, limestone 7.0%, zinc white 2.8%, and aluminum hydroxide 6.
.. A substance consisting of, for example, 8% is used.
ここで、上記タングステンフィラメントについて、従来
のニクロム線ヒータを用いた場合と比較して説明してお
く、第2図のタングステンフィラメントに換えて、ニク
ロム線を用いた場合には、ハロゲンランプヒータの熱容
量は8 J/にであるのに対しニクロム線ヒータでは1
9J/にと大きく、またニクロム線ヒータでは熱放射す
るために600〜700℃まで自己昇温する必要がある
ため、パワー供給後その温度に達するまでのエネルギの
ほとんどが自己昇温に費されてしまい定着可能状態に至
るまでに比較的及時間を要する。これに対し、ハロゲン
ランプヒータでは、熱容量が小さく、ヒータ自身の立上
り特性が良いために遠赤外線放射物質層か設定温度であ
る250〜350℃に達するには短時間ですむ。Here, we will explain the above tungsten filament in comparison with the case where a conventional nichrome wire heater is used.If a nichrome wire is used instead of the tungsten filament shown in Fig. 2, the heat capacity of the halogen lamp heater will be is 8 J/, while for the nichrome wire heater it is 1
9J/, and since nichrome wire heaters need to self-heat up to 600-700°C in order to radiate heat, most of the energy used to reach that temperature after power is supplied is spent on self-heating. It takes a relatively long time to reach a fixable state. On the other hand, with a halogen lamp heater, the heat capacity is small and the heater itself has good startup characteristics, so it takes only a short time for the far-infrared emitting material layer to reach the set temperature of 250 to 350°C.
次に本発明に使用されるハロゲンランプヒータに表層の
遠赤外線物質8の特性は、波長が5ル■以上において放
射率を一段と高くするようにして、トナーの吸収波長に
合致せしめている。ハロゲンランプヒータの輻射エネル
ギのピーク値が1.24mの波長の近傍に存在するので
、したがって上記遠赤外線物質はこの近傍の波長のもの
を透過してしまう。Next, the characteristics of the far-infrared material 8 on the surface of the halogen lamp heater used in the present invention are such that the emissivity is further increased at wavelengths of 5 l or more, so as to match the absorption wavelength of the toner. Since the peak value of the radiant energy of the halogen lamp heater exists in the vicinity of a wavelength of 1.24 m, the far-infrared material transmits wavelengths in this vicinity.
次に、反射板2は、銅やアルミニウムのように反射率の
高い素材で作られ、その形状は反射された遠赤外線か記
録紙3へ直角に達するように放物線状をなしている0以
上のごとくの本実施例装置の作動は次のどとくである。Next, the reflector 2 is made of a material with high reflectance such as copper or aluminum, and its shape is a parabola so that the reflected far infrared rays reach the recording paper 3 at right angles. The operation of the apparatus of this embodiment is as follows.
先ず、ハロゲンランプヒータへの通電後、タングステン
フィラメントが約2000°に熱せられ、主に熱伝導に
より石英ガラスが昇温する。この石英ガラスの表面温度
をサーミスタ等の温度センサー(図示せず)でモニター
することにより、上記表面温度を約り50℃〜350℃
程度に制御設定する。First, after power is applied to the halogen lamp heater, the tungsten filament is heated to about 2000°, and the temperature of the quartz glass is increased mainly due to heat conduction. By monitoring the surface temperature of this quartz glass with a temperature sensor (not shown) such as a thermistor, the above surface temperature can be calculated to approximately 50°C to 350°C.
Control settings to a certain degree.
そして第1図に示す遠赤外線放射物質層8より遠赤外線
が効率よく放射されるように維持する。その際、遠赤外
線放射物質は第3図のごとく温度によって放射強度が波
長と共に変わるので、上記設定温度に対応する温度で効
率がピークとなる波長とする。Further, far infrared rays are maintained so as to be efficiently radiated from the far infrared ray emitting material layer 8 shown in FIG. In this case, since the radiation intensity of the far-infrared emitting material changes with the wavelength depending on the temperature as shown in FIG. 3, the wavelength is set so that the efficiency peaks at the temperature corresponding to the above-mentioned set temperature.
このようにして放射された遠赤外線は、反射板2によっ
て効果的に記録材3に達し、トナー4は定着がなされる
。The far infrared rays emitted in this way effectively reach the recording material 3 by the reflecting plate 2, and the toner 4 is fixed.
本発明は基本的には、遠赤外線による輻射定着であるが
、実際には、熱伝導やハロゲンランプヒータから輻射さ
れる近赤外線により定着装置近傍の空気が暖められ、こ
れによっても定着効果が増長される。The present invention is basically a radiation fixing method using far infrared rays, but in reality, the air near the fixing device is warmed by heat conduction and near infrared rays radiated from a halogen lamp heater, which also increases the fixing effect. be done.
(発明の効果)
本発明は、以上のごとく非接触加熱方式において、熱源
として周囲面に遠赤外線放射物質層が施されたハロゲン
ランプヒータを使用して熱効率を高め、放射された遠赤
外線を反射板にて、未定着トナー像を有する記録材に向
は反射せしめることとしたので、熱効率を一段と向上せ
しめることができ、特に複写機等の低速機でその威力を
発揮し、軽量化が可能となってコストの低減化等の効果
をもたらす。(Effects of the Invention) As described above, the present invention improves thermal efficiency by using a halogen lamp heater with a far-infrared emitting material layer on the surrounding surface as a heat source in a non-contact heating method, and reflects the emitted far-infrared rays. By using the plate to reflect the light onto the recording material that has an unfixed toner image, it is possible to further improve thermal efficiency, which is particularly effective in low-speed machines such as copying machines, and makes it possible to reduce weight. This brings about effects such as cost reduction.
第1図は本発明の一実施例装置の断面図、第2図は第1
図装置に用いられるハロゲンランプヒータの軸を含む面
での断面図、第3図は第1図のハロゲンランプヒータの
表面に設けられた遠赤外線放射物質の特性曲線である。
l・・・・・・・・・・・・ハロゲンランプヒータ2・
・・・・・・・・・・・反射手段(反射板)3・・・・
・・・・・・・・記録材
4・・・・・・・・・・・・未定着トナー像8・・・・
・・・・・・・・遠赤外線放射物質特許出願人
キャノン株式会社代 理 人 弁理士 藤
岡 徹第1図
第 3 図
0.10.20512 5102050100波
長 (μm)FIG. 1 is a cross-sectional view of an apparatus according to an embodiment of the present invention, and FIG.
FIG. 3 is a cross-sectional view of a halogen lamp heater used in the apparatus taken along a plane including the axis, and FIG. 3 is a characteristic curve of a far-infrared emitting material provided on the surface of the halogen lamp heater of FIG. l・・・・・・・・・・・・Halogen lamp heater 2・
......Reflection means (reflection plate) 3...
......Recording material 4......Unfixed toner image 8...
・・・・・・Far-infrared emitting material patent applicant
Canon Co., Ltd. Representative Patent Attorney Fuji
Toru Oka Figure 1 Figure 3 Figure 0.10.20512 5102050100 waves
Length (μm)
Claims (2)
定着する装置において、 非接触加熱用の熱源は、ガラス管表面に遠赤外線放射物
質を有するハロゲンランプヒータで成り、 上記ハロゲンランプヒータの周囲に、上記遠赤外線放射
物質より放射される遠赤外線を上記記録材の表面に向け
て反射する反射手段を配した、ことを特徴とする定着装
置。(1) In an apparatus for thermally fixing a recording material having an unfixed toner image by non-contact heating, the heat source for non-contact heating consists of a halogen lamp heater having a far-infrared emitting substance on the surface of a glass tube, and the halogen lamp described above A fixing device characterized in that a reflecting means for reflecting far infrared rays emitted from the far infrared ray emitting material toward the surface of the recording material is arranged around the heater.
制御する制御手段に接続せられてい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 halogen lamp heater is connected to a control means for controlling the surface temperature to a predetermined temperature.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11577887A JPS63281180A (en) | 1987-05-14 | 1987-05-14 | Fixing device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11577887A JPS63281180A (en) | 1987-05-14 | 1987-05-14 | Fixing device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS63281180A true JPS63281180A (en) | 1988-11-17 |
Family
ID=14670821
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP11577887A Pending JPS63281180A (en) | 1987-05-14 | 1987-05-14 | Fixing device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS63281180A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0412288U (en) * | 1990-05-23 | 1992-01-31 | ||
KR100540066B1 (en) * | 2002-03-27 | 2006-01-10 | 조극래 | Heating Apparatus Using Infrared Rays |
JP2013159045A (en) * | 2012-02-06 | 2013-08-19 | Canon Inc | Inkjet recording apparatus |
-
1987
- 1987-05-14 JP JP11577887A patent/JPS63281180A/en active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0412288U (en) * | 1990-05-23 | 1992-01-31 | ||
KR100540066B1 (en) * | 2002-03-27 | 2006-01-10 | 조극래 | Heating Apparatus Using Infrared Rays |
JP2013159045A (en) * | 2012-02-06 | 2013-08-19 | Canon Inc | Inkjet recording apparatus |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US3449546A (en) | Infra-red heater | |
JP2008033240A (en) | Image fixing device and image forming apparatus | |
US3649808A (en) | Fusing device | |
JPH07230795A (en) | Heat generating tungsten halogen lamp, heating device and image forming device | |
JPS63281181A (en) | Fixing device | |
JPS63281180A (en) | Fixing device | |
JPH09114307A (en) | Fixing device | |
JPH0926720A (en) | Heat roller for electrophotographic system | |
JPH1118239A (en) | Tool and method for contracting thermal contraction tube | |
JPH07152271A (en) | Thermal fixing device | |
GB1599452A (en) | Infra-red heating device | |
JPH0625913Y2 (en) | Heat ray radiator | |
JP4947344B2 (en) | Heating device | |
JPS568173A (en) | Fixing device | |
JPS5839039Y2 (en) | Planar far infrared heater | |
JPH04156899A (en) | Light heat source iron | |
JPH0711730B2 (en) | Fixing device | |
JPH02118329A (en) | Radiation heater | |
JPH0635354A (en) | Fixing device | |
KR100540066B1 (en) | Heating Apparatus Using Infrared Rays | |
JPH0518870Y2 (en) | ||
JPH0954510A (en) | Thermal fixing roller device | |
JP2552279Y2 (en) | Thermal fixing device | |
JP2978716B2 (en) | Far infrared heater | |
JPH083962Y2 (en) | Thermal fixing device |