JPS61219074A - Toner fixing device - Google Patents
Toner fixing deviceInfo
- Publication number
- JPS61219074A JPS61219074A JP5847585A JP5847585A JPS61219074A JP S61219074 A JPS61219074 A JP S61219074A JP 5847585 A JP5847585 A JP 5847585A JP 5847585 A JP5847585 A JP 5847585A JP S61219074 A JPS61219074 A JP S61219074A
- Authority
- JP
- Japan
- Prior art keywords
- flash
- toner
- lamp
- high frequency
- coil
- 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
- 230000005674 electromagnetic induction Effects 0.000 claims abstract description 9
- 238000010438 heat treatment Methods 0.000 claims abstract description 9
- 239000011521 glass Substances 0.000 abstract description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract description 2
- 229910052799 carbon Inorganic materials 0.000 abstract description 2
- 239000004020 conductor Substances 0.000 abstract description 2
- 238000007664 blowing Methods 0.000 abstract 1
- 238000001816 cooling Methods 0.000 abstract 1
- 230000006698 induction Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 description 10
- 239000006247 magnetic powder Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 239000003990 capacitor Substances 0.000 description 2
- 239000006229 carbon black Substances 0.000 description 2
- 230000004907 flux Effects 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000031700 light absorption Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000012811 non-conductive material Substances 0.000 description 1
- 239000000615 nonconductor Substances 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 229910052724 xenon Inorganic materials 0.000 description 1
- FHNFHKCVQCLJFQ-UHFFFAOYSA-N xenon atom Chemical compound [Xe] FHNFHKCVQCLJFQ-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G15/00—Apparatus for electrographic processes using a charge pattern
- G03G15/20—Apparatus for electrographic processes using a charge pattern for fixing, e.g. by using heat
- G03G15/2003—Apparatus for electrographic processes using a charge pattern for fixing, e.g. by using heat using heat
- G03G15/2007—Apparatus for electrographic processes using a charge pattern for fixing, e.g. by using heat using heat using radiant heat, e.g. infrared lamps, microwave heaters
- G03G15/201—Apparatus for electrographic processes using a charge pattern for fixing, e.g. by using heat using heat using radiant heat, e.g. infrared lamps, microwave heaters of high intensity and short duration, i.e. flash fusing
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G15/00—Apparatus for electrographic processes using a charge pattern
- G03G15/20—Apparatus for electrographic processes using a charge pattern for fixing, e.g. by using heat
- G03G15/2003—Apparatus for electrographic processes using a charge pattern for fixing, e.g. by using heat using heat
- G03G15/2007—Apparatus for electrographic processes using a charge pattern for fixing, e.g. by using heat using heat using radiant heat, e.g. infrared lamps, microwave heaters
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Fixing For Electrophotography (AREA)
Abstract
Description
【発明の詳細な説明】
〔発明の利用分野〕
本発明は定着装置、特に、プリンタに付属する電子写真
装置において用紙上に転写されたトナー像を用紙に定着
するためのトナー定着装置に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Application of the Invention] The present invention relates to a fixing device, and particularly to a toner fixing device for fixing a toner image transferred onto a sheet of paper in an electrophotographic device attached to a printer.
電子写真において、トナー像の用紙への定着は、一般に
、トナーを加熱、融解して定着させるのが普通であり、
定着装置には種々の方法が考えられている。放射エネル
ギを照射し、非接触で定着を行う放射定着装置では、キ
セノンランプを用い閃光を照射するフラッシュ方式があ
る。フラッシュ方式は、ヒートロール方式や赤外線方式
に比べて。In electrophotography, toner images are generally fixed on paper by heating and melting the toner.
Various methods have been considered for fixing devices. A radiation fixing device that performs non-contact fixing by applying radiant energy includes a flash method that uses a xenon lamp to emit flash light. The flash method is compared to the heat roll method and infrared method.
ウオーミングアツプ時間が短いこと、火災に対する安全
性が高いこと等の利点があるが、大容量のコンデンサを
使用し、瞬時に大電流を流すため電源装置が大型化する
傾向がある。又、単位面積当りの閃光エネルギが大き過
ぎるとトナーが飛散し印刷画質を悪くする原因となる。Although they have advantages such as short warming-up time and high safety against fire, they tend to increase the size of power supply devices because they use large capacitors and instantaneously flow large currents. Furthermore, if the flash energy per unit area is too large, the toner will scatter, causing poor print image quality.
このようなフラッシュ方式の欠点を補うため、特開昭５
５〜１０８６７７号、実開［５８−２６０５７号公報に
記載されているように、フラッシュ方式にマイクロ波加
熱器や赤外ランプを併用する方法がある。しかし、マイ
クロ波を併用する場合は、周囲への電波漏れの問題、赤
外ランプの場合はジャム時に発火の恐れがある等の問題
があった。又、ヒータ等を埋め込んだ熱板を併用する方
法（特開昭５６−８１７１号公報）でウオーミングアツ
プ時間が長いことや熱損失が大きくなる傾向があった。In order to compensate for these drawbacks of the flash method,
As described in Nos. 5-108677 and Utility Model Application Publication No. 58-26057, there is a method of using a flash method in combination with a microwave heater or an infrared lamp. However, when microwaves are used together, there are problems such as leakage of radio waves to the surrounding area, and when using infrared lamps, there is a risk of ignition in the event of a jam. Furthermore, the method of using a hot plate embedded with a heater or the like (Japanese Unexamined Patent Publication No. 56-8171) tends to require a long warming-up time and to increase heat loss.
本発明の目的は、ウオーミングアツプ時間が短く、安全
性の高いトナー定着装置を提供することにある。An object of the present invention is to provide a toner fixing device with short warming-up time and high safety.
本発明は、トナー中に導電性物質（カーボンや磁性粉等
）が含有されており、高周波磁界を印加することにより
導電体を効率良く加熱できることに着目し、フラッシュ
加熱器と電磁誘導加熱器とを併用することにより、トナ
ーを効率良く、且つ、安全に熱融解させるようにしたも
のである。The present invention focuses on the fact that toner contains conductive substances (carbon, magnetic powder, etc.) and can be efficiently heated by applying a high-frequency magnetic field, and uses a flash heater and an electromagnetic induction heater. By using these together, the toner can be thermally melted efficiently and safely.
以下、本発明の一実施例を図により説明する。 Hereinafter, one embodiment of the present invention will be described with reference to the drawings.
用紙６の上方にはフラッシュランプ１及び反射鏡２を内
蔵し、閃光照射側にガラス板３を、函体の一部にフラッ
シュランプ１を冷却する空気流を循環させる送風装置５
を取り付けたランプハウス４が配置され、フラッシュ加
熱部を形成している。A flash lamp 1 and a reflector 2 are built in above the paper 6, a glass plate 3 is placed on the flash irradiation side, and a blower 5 that circulates an air flow to cool the flash lamp 1 is provided in a part of the box.
A lamp house 4 with a lamp attached thereto is arranged to form a flash heating section.
一方、用紙６の下方には、磁界発生用のコイル９及びそ
の電源（図示していない）を内蔵し、上面板１０に耐熱
ガラス等の非導電性物質を具備した電磁誘導加熱器８が
配置されている。コイル９には高周波電流が供給され、
高周波磁界を発生できる。このような電磁誘導加熱器の
原理は、市販されている電磁調理器や高周波表面焼入装
置と同様なものである・尚、電子写真装置に使用される
トナーは普通、鉄粉等の磁性粉を樹脂内に含有する磁性
トナー、含有しない非磁性トナーに大別される。導電性
物質に相当する物質は、磁性トナーの場合は磁性粉とカ
ーボンブラック、非磁性トナーの場合はカーボンブラッ
クがある。７は案内板である。On the other hand, below the paper 6, an electromagnetic induction heater 8 is arranged, which has a built-in coil 9 for generating a magnetic field and its power source (not shown), and has a top plate 10 made of a non-conductive material such as heat-resistant glass. has been done. A high frequency current is supplied to the coil 9,
Can generate high frequency magnetic fields. The principle of such an electromagnetic induction heater is the same as that of commercially available electromagnetic cookers and high-frequency surface hardening devices.The toner used in electrophotographic devices is usually magnetic powder such as iron powder. Magnetic toners are broadly classified into magnetic toners that contain in the resin, and non-magnetic toners that do not. Substances corresponding to conductive substances include magnetic powder and carbon black in the case of magnetic toner, and carbon black in the case of non-magnetic toner. 7 is an information board.
この構成では、用紙６上の未定着トナーが定着部に送ら
れると電磁誘導加熱器８のコイル９に高周波電流が供給
され、第１図に矢印で示すように、高周波磁界を発生さ
せる。トナー中の導電体に磁束変化が起こると磁束の変
化を妨げる方向にうず電流が誘起されジュール熱が発生
し、トナーの温度を上昇させる。同時に、フラッシュラ
ンプ１の閃光により、トナーの融解が行われる。電磁誘
導加熱過程では、用紙は非導電体であり、誘導電流は流
れず、従って加熱はされない、又、フラッシュ定着時も
白部（用紙）は光吸収性が低いため、閃光エネルギを殆
んど吸収しない、従って、本実施例の方式では用紙６は
殆んど加熱されないので発火の恐れがない。又、電磁誘
導加熱及びフラッシュ加熱共にウオームアツプ時間が短
くて済み、クイックスタートが可能である。さらに、フ
ラッシュ定着に必要な閃光エネルギは電磁誘導加熱によ
る温度上昇分だけ少なくてすみ、その結果、小容量の充
放電用コンデンサを使用でき、フラッシュ定着器の電源
を小型化することができる。In this configuration, when the unfixed toner on the paper 6 is sent to the fixing section, a high frequency current is supplied to the coil 9 of the electromagnetic induction heater 8, generating a high frequency magnetic field as shown by the arrow in FIG. When a change in magnetic flux occurs in a conductor in the toner, eddy currents are induced in a direction that impedes the change in magnetic flux, generating Joule heat and increasing the temperature of the toner. At the same time, the toner is melted by flashing light from the flash lamp 1. In the electromagnetic induction heating process, the paper is a non-conductor and no induced current flows, so it is not heated.Also, even during flash fixing, the white area (paper) has low light absorption, so most of the flash energy is absorbed by the paper. Therefore, in the method of this embodiment, the paper 6 is hardly heated, so there is no risk of ignition. In addition, both electromagnetic induction heating and flash heating require a short warm-up time, allowing a quick start. Furthermore, the flash energy required for flash fixing can be reduced by the temperature rise due to electromagnetic induction heating, and as a result, a small capacity charging/discharging capacitor can be used, and the power supply for the flash fixing device can be downsized.
本発明によれば、定着過程において用紙は殆んど加熱さ
れないので熱効率が高く発火の恐れがない、又、瞬間的
な加熱や停止ができるので装置の駆動率を上げることが
できる。According to the present invention, since the paper is hardly heated during the fixing process, the thermal efficiency is high and there is no risk of ignition, and since instantaneous heating and stopping can be performed, the driving rate of the apparatus can be increased.
図は本発明の一実施例の側面方向の断面図である。 The figure is a side cross-sectional view of one embodiment of the present invention.
Claims (1)
つて前記用紙に定着させる定着装置において、 電磁誘導加熱器とフラッシュ加熱器を配置し併用するこ
とを特徴とするトナー定着装置。[Scope of Claims] 1. A fixing device for fixing a toner image formed on a sheet of paper to the sheet of paper by heating and fusing means, characterized in that an electromagnetic induction heater and a flash heater are arranged and used in combination. toner fixing device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60058475A JPH0734136B2 (en) | 1985-03-25 | 1985-03-25 | Toner fixing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60058475A JPH0734136B2 (en) | 1985-03-25 | 1985-03-25 | Toner fixing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61219074A true JPS61219074A (en) | 1986-09-29 |
| JPH0734136B2 JPH0734136B2 (en) | 1995-04-12 |
Family
ID=13085457
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP60058475A Expired - Lifetime JPH0734136B2 (en) | 1985-03-25 | 1985-03-25 | Toner fixing device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0734136B2 (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55108677A (en) * | 1979-02-13 | 1980-08-21 | Nec Corp | Fixing device |
| JPS55133075A (en) * | 1979-04-03 | 1980-10-16 | Ricoh Co Ltd | Fixing device |
| JPS5754965A (en) * | 1980-09-18 | 1982-04-01 | Canon Inc | Fixing device |
| JPS5778061U (en) * | 1980-10-30 | 1982-05-14 | ||
| JPS58175553U (en) * | 1982-05-18 | 1983-11-24 | 三洋電機株式会社 | Flash fixing device |
-
1985
- 1985-03-25 JP JP60058475A patent/JPH0734136B2/en not_active Expired - Lifetime
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55108677A (en) * | 1979-02-13 | 1980-08-21 | Nec Corp | Fixing device |
| JPS55133075A (en) * | 1979-04-03 | 1980-10-16 | Ricoh Co Ltd | Fixing device |
| JPS5754965A (en) * | 1980-09-18 | 1982-04-01 | Canon Inc | Fixing device |
| JPS5778061U (en) * | 1980-10-30 | 1982-05-14 | ||
| JPS58175553U (en) * | 1982-05-18 | 1983-11-24 | 三洋電機株式会社 | Flash fixing device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0734136B2 (en) | 1995-04-12 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |