JPS60118871A - Flash fixing device - Google Patents
Flash fixing deviceInfo
- Publication number
- JPS60118871A JPS60118871A JP22652483A JP22652483A JPS60118871A JP S60118871 A JPS60118871 A JP S60118871A JP 22652483 A JP22652483 A JP 22652483A JP 22652483 A JP22652483 A JP 22652483A JP S60118871 A JPS60118871 A JP S60118871A
- Authority
- JP
- Japan
- Prior art keywords
- sleeve
- recording paper
- fixing
- flash lamp
- fixing device
- 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
- 238000001514 detection method Methods 0.000 claims description 9
- 230000000694 effects Effects 0.000 abstract description 4
- 239000002699 waste material Substances 0.000 abstract description 3
- 230000003287 optical effect Effects 0.000 abstract 2
- 238000001816 cooling Methods 0.000 description 4
- 238000009423 ventilation Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 108091008695 photoreceptors Proteins 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
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Fixing For Electrophotography (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は電子写真複写機、ファクシミリ、プリンター等
のフラッシュ定着装置に関するものである。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a flash fixing device for electrophotographic copying machines, facsimile machines, printers, and the like.
（従来の技術）
従来のフラッシュ定着装置は、たとえば第１図に示すよ
うに管状のフラッシュランプ１の外周に断面略台形状の
りフレフタ−を配置し、前記フラッシュランプをフラッ
シュすることにより、その光エネルギーによって前記リ
フレクタ−２下に搬送されて来る記録紙３の未定着のト
ナー像を当該記録紙３に定着するように構成されていた
。しかしながら、このようなフラッシュ定着装置はりフ
レフタ−の下部全体が定着領域であるため記録紙のサイ
ズが小さい場合には当該記録紙は勿論のこと、その下部
の搬送体をも照射することになって、当該搬送体を加熱
変形させて搬送に支障をきたすといった欠点があった。(Prior Art) In a conventional flash fixing device, for example, as shown in FIG. 1, a glue flaper having a substantially trapezoidal cross section is disposed around the outer periphery of a tubular flash lamp 1, and by flashing the flash lamp, the light from the flash fixing device is fixed. It is configured such that the unfixed toner image on the recording paper 3 that is conveyed below the reflector 2 is fixed on the recording paper 3 by energy. However, since the entire lower part of the flash fixing device's beam flap is the fixing area, if the size of the recording paper is small, not only the recording paper but also the conveying body below it will be irradiated. However, there is a drawback that the carrier is heated and deformed, which hinders transportation.
これを避けるためにを１前記リフレクタ−２内に配置す
るフラッシュランプ１を記録紙のサイズに合わせて複数
本配置し、これを前記記録紙のサイズに対応させて使用
する方法が考えられるが、この場合、その操作が複雑と
なり、これに伴って構造も複雑となって故障も起こりや
すく、又製作コストの７ツブを避けることができないと
いった欠点があった。In order to avoid this, a method can be considered in which a plurality of flash lamps 1 are arranged in the reflector 2 according to the size of the recording paper, and these are used in accordance with the size of the recording paper. In this case, there are disadvantages in that the operation is complicated, the structure is also complicated and failures are likely to occur, and manufacturing costs are unavoidable.
（発明の目的）
本発明は上記従来のフラッシュ定着装置の欠点を除去す
るためになされたものであって、記録紙サイズに応じた
定着エリアを自動的に形成させて定着効率のアップをは
かると共に、前記定着領域以外の部分には光エネルギー
の照射がなされな〜・ようにして搬送体の加熱変形を防
止し、記録紙送りの信頼性を高めようとしたフラッシュ
定着装置を提供することを目的としたものである。(Object of the Invention) The present invention has been made in order to eliminate the drawbacks of the conventional flash fixing device described above, and improves fixing efficiency by automatically forming a fixing area according to the size of recording paper. An object of the present invention is to provide a flash fixing device which prevents heat deformation of a conveying member and improves the reliability of recording paper feeding by preventing irradiation of light energy to parts other than the fixing area. That is.
（発明の構成）
そのために本発明はフラッシュランプの外周に、当該ラ
ンプを中心として回転するスリーブ及びスリーブのカバ
ーを設け、且つ前記スリーブの適所には記録紙のサイズ
に合わせてスリット開口部を適数穿設し、該スリット開
口部のうちの一つを基準として、これを駆動させる駆動
システムにより、各スリット開口部の位置を決め、フラ
ッシュ定着を行なうようにしたものである。(Structure of the Invention) For this purpose, the present invention provides a sleeve that rotates around the flash lamp and a cover for the sleeve around the outer periphery of the flash lamp, and a slit opening in the appropriate position of the sleeve according to the size of the recording paper. A number of slit openings are provided, one of the slit openings is used as a reference, and a drive system is used to drive the slit opening to determine the position of each slit opening and perform flash fixing.
（実 施 例）
以下本発明を図面に示す実施例に基づいて詳細に説明す
る。(Embodiments) The present invention will be described in detail below based on embodiments shown in the drawings.
第２図は本発明のフラッシュ定着装置の一実施例を示す
概略側面図、第３図は同、正面図である。FIG. 2 is a schematic side view showing one embodiment of the flash fixing device of the present invention, and FIG. 3 is a front view of the same.
これらの図において、フラッジ−ランプ１の外周には、
円筒状で適所に記録紙のサイズに合わせて第４図に示す
ようにスリット開口部４・・・を穿設した回転スリーブ
５を配置し、該回転スリーブ５の外周には略Ω形状に、
下部の定着部を開口状に設けた内面反射スリーブ６を配
置する。そして前記回転スリーブ５の下部の四隅にはサ
ポートロール７・・・を配置してこれを回転可能に支持
しておくと共に、その両端側下部にはスリーブサポート
８．８を配置してこれを部方向に飛び出さないようにし
ておき、且つ又当該回転スリーブ５の一端側外周には歯
車部９を設け、該歯車部９は、パルスモータ−１０のシ
ャフト１１の先端に設けた歯車１２に噛合わせておく。In these figures, on the outer periphery of the flood lamp 1,
A rotating sleeve 5 having a cylindrical shape and having slit openings 4 formed therein according to the size of the recording paper as shown in FIG.
An internal reflection sleeve 6 having an open lower fixing portion is arranged. Support rolls 7 are arranged at the four corners of the lower part of the rotary sleeve 5 to rotatably support it, and sleeve supports 8 and 8 are arranged at the lower part of both ends to support the roll. In addition, a gear part 9 is provided on the outer periphery of one end of the rotating sleeve 5, and the gear part 9 meshes with a gear 12 provided at the tip of the shaft 11 of the pulse motor 10. Let's match.
尚、図中１３は冷却用フィンであり、１４は冷却用通風
路である。In the figure, 13 is a cooling fin, and 14 is a cooling ventilation path.
本発明は以上のように構成したものである。次にその動
作について説明する。The present invention is constructed as described above. Next, its operation will be explained.
回転スリーブ５は記録紙のサイズに合わせて穿設したス
リット開口部４・・・のうちの一つを基準とし、その基
準とするスリット開口部４が下向きにセットされた状態
を仮にホームポジシランとする。The rotating sleeve 5 is set with one of the slit openings 4 bored according to the size of the recording paper as a reference, and the slit opening 4 used as the reference is set downward in the home position. shall be.
そして、図示を省略した記録紙供給部で記録紙の選択が
行なわれ、その信号が制御入力部からパルスモータ−１
０に送られて来ると、当該パルスモータ−１０はこの信
号に基づき、回転スリーブ５を時計方向或は反時計方向
に回動させて、前記選択された記録紙のサイズに対応す
るスリット開口部４を下向きにセットする。このとき当
該スリーブ５の外周の適所にはブイクロスイッチ、又は
フォトセンサー等の検出器を配置し、これによって前記
スリット開口部４の正確な位置決めを行なうことはいう
までもない。このようにして記録紙のサイズに合ったス
リット開口部４がセットされた状態のところへ、図示を
省略した感光体の転写部で未定着のトナー像を転写され
た記録紙が搬送されて来て、これにタイミングを合わせ
て回転スリーブ５内のフラッシュランプｌを発光させれ
ば当該ランプ１の光エネルギーは前記ズリット開口部４
から記録紙に対し、そのサイズに対応して照射されるこ
とになり、又当該スリット開口部４以外の開口部４・・
・から回転スリーブ５外に飛び出そうとする光は、その
外周に配置した内面反射スリーブ６に当って反射し、ス
リーブ５内に戻され、これらの光も前記スリット開口部
４から記録紙を照射すること罠なるからフラッシュラン
プ１からの光エネルギーを無駄なく定着に使用すること
ができる。更にこの際前記フラッシュランプ１に画像密
度検出センサー及び検出回路並びに制御回路等を接続し
、画像密度検出センサーによって記録紙の画像密度を検
出し、この検出信号を検出回路及び制御回路を介してフ
ランシュランプ１の点灯回路に送り、当該フラッシュラ
ンプｌの発光エネルギーを補正するようにすれば当該光
エネルギーを著しく節約することも可能なことはいうま
でもな（）。Then, a recording paper supply section (not shown) selects the recording paper, and the signal is sent from the control input section to the pulse motor 1.
0, the pulse motor 10 rotates the rotary sleeve 5 clockwise or counterclockwise based on this signal to open the slit opening corresponding to the selected recording paper size. Set 4 facing downward. At this time, it goes without saying that a detector such as a microswitch or a photosensor is placed at a suitable location on the outer periphery of the sleeve 5 to accurately position the slit opening 4. In this way, the recording paper, on which the unfixed toner image has been transferred by the transfer section of the photoreceptor (not shown), is conveyed to the state where the slit opening 4 matching the size of the recording paper is set. If the flash lamp l inside the rotary sleeve 5 is made to emit light at the same time, the light energy of the lamp 1 will be transferred to the Zlit opening 4.
The recording paper is irradiated with light according to its size, and the openings 4 other than the slit opening 4...
- Light trying to escape from the rotating sleeve 5 is reflected by the internal reflection sleeve 6 disposed on the outer periphery of the rotating sleeve 5, and is returned into the sleeve 5, and these lights also irradiate the recording paper through the slit opening 4. Since it is a trap to do so, the light energy from the flash lamp 1 can be used for fixing without wasting it. Furthermore, at this time, an image density detection sensor, a detection circuit, a control circuit, etc. are connected to the flash lamp 1, the image density detection sensor detects the image density of the recording paper, and this detection signal is sent to the flash lamp via the detection circuit and control circuit. It goes without saying that if the light is sent to the lighting circuit of the lamp 1 and the light emission energy of the flash lamp 1 is corrected, the light energy can be significantly saved ().
（発明の効果）
本発明は以上のように構成し、且つ使用するものであり
、フラッシュランプ１の外周に回転スリーブ５を配置し
、当該スリーブ５に穿設したスリット開口部４・・・を
記録紙のサイズに合わせて定着部にセットしてフラッシ
ュランプ１を発光させ。(Effects of the Invention) The present invention is configured and used as described above, in which a rotating sleeve 5 is arranged around the outer periphery of the flash lamp 1, and a slit opening 4 formed in the sleeve 5 is connected to the rotary sleeve 5. Set the recording paper in the fixing section according to its size and turn on the flash lamp 1.
その光エネルギーによって記録紙上に転写した未定着の
トナー像を定着するようにしたものであるから、その定
着領域は常に記録紙のサイズに限定され、この領域外に
は光エネルギーははみ出すことがないので定着部におけ
る搬送体を加熱変形させることはなくなり従ってこれが
原因で用紙の搬送に支障をきたすようなこともなくなる
といった効果を有する他に、前記記録紙へのトナー像の
定着は記録紙のサイズに合った回転スリーブ５のスリッ
ト開口部４・・・を用いて行なうので、フラッシュラン
プ１の光エネルギーを無駄なく定着に使用することがで
きるし、又当該フラッシュランプ１の光エネルギーは画
像密度検出センサーによって記録紙の画像密度に合わせ
て調整できるので、この点においても光エネルギーの無
駄を省略できると弁圧、その定着効果をより確実にする
ことができ装置自体の信頼性をより向上させることがで
きるといった効果も併せもつものである。Since the unfixed toner image transferred onto the recording paper is fixed by the light energy, the fixing area is always limited to the size of the recording paper, and the light energy does not protrude outside this area. Therefore, the conveying body in the fixing section is not heated and deformed, and therefore there is no problem in conveying the paper due to this. Since this is carried out using the slit opening 4 of the rotating sleeve 5 that matches the image density, the light energy of the flash lamp 1 can be used for fixing without waste, and the light energy of the flash lamp 1 can also be used for image density detection. Since the image density can be adjusted using the sensor to match the image density of the recording paper, in this respect as well, waste of light energy can be omitted and the valve pressure can be more securely fixed, thereby further improving the reliability of the device itself. It also has the effect of being able to do the following.
第１図は従来のフラッシュ定着装置の概略側面図、第２
図は本発明のフラッシュ定着装置の一実施例を示す概略
側面図、第３図は同、一部断面正面図、第４図は同、回
転スリーブの展開図である。
図中１・・・フラッシュランプ、２・・・リフレクタ−
１３・・・記録紙、４・・・スリット開口部、５・・・
回転スリーブ、６・・・内面反射スリーブ、７・・・サ
ポートロール、８・・・スリーブサポート、９・・・歯
車部、１０・・・パルスモータ−５１１・・・シャフト
、１２・・・歯車、１３・・冷却用フィン、１４・・・
冷却用通風路。
第３図
第４図Figure 1 is a schematic side view of a conventional flash fixing device, Figure 2 is a schematic side view of a conventional flash fixing device;
The figure is a schematic side view showing one embodiment of the flash fixing device of the present invention, FIG. 3 is a partially sectional front view of the flash fixing device, and FIG. 4 is a developed view of the rotary sleeve. In the diagram 1...Flash lamp, 2...Reflector
13... Recording paper, 4... Slit opening, 5...
Rotating sleeve, 6... Internal reflective sleeve, 7... Support roll, 8... Sleeve support, 9... Gear part, 10... Pulse motor-511... Shaft, 12... Gear , 13... cooling fin, 14...
Cooling ventilation duct. Figure 3 Figure 4
Claims (2)
対応したスリット開口部を組数穿設した回転スリーブを
配置し、該回転スリーブの外周には、下部の定着部に対
応する部分を開口状に設けた内面反射スリーブを配置す
ると共に、前記回転スリーブを記録紙のサイズ選択信号
によって回転させ、当該スリーブのスリット開口部を記
録紙のサイズに合ったものを定着部にセクトし、当該ス
リット開口部を介して記録紙の定着を行なうようにした
ことを特徴とするフラッシュ定着装置。(1) A rotating sleeve with a number of slit openings corresponding to the size of the recording paper is arranged around the outer periphery of the flash lamp, and an opening is formed on the outer periphery of the rotating sleeve in a portion corresponding to the fixing section at the bottom. At the same time, the rotating sleeve is rotated by a recording paper size selection signal, and the slit opening of the sleeve that matches the size of the recording paper is selected to the fixing section, and the slit opening is 1. A flash fixing device characterized in that a recording paper is fixed through a flash fixing device.
画像密度検出センサー及び検出回路並びに制御回路等を
接続し、画像密度検出センサーによって記録紙の画倫密
度を検出し、その信号に基づいて前記フラッシュランプ
の発光エネルギーを調整して定着を行なうよう圧したこ
とを特徴とする特許 定着装置。(2) A recording paper image density detection sensor, a detection circuit, a control circuit, etc. are connected to the lighting circuit of the flash lamp, and the image density detection sensor detects the image density of the recording paper, and based on the signal, the A patented fixing device characterized by adjusting the light emission energy of a flash lamp to apply pressure for fixing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22652483A JPS60118871A (en) | 1983-11-30 | 1983-11-30 | Flash fixing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22652483A JPS60118871A (en) | 1983-11-30 | 1983-11-30 | Flash fixing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS60118871A true JPS60118871A (en) | 1985-06-26 |
Family
ID=16846473
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP22652483A Pending JPS60118871A (en) | 1983-11-30 | 1983-11-30 | Flash fixing device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60118871A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20160170339A1 (en) * | 2014-12-10 | 2016-06-16 | Canon Kabushiki Kaisha | Fixing apparatus for image forming apparatus |
-
1983
- 1983-11-30 JP JP22652483A patent/JPS60118871A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20160170339A1 (en) * | 2014-12-10 | 2016-06-16 | Canon Kabushiki Kaisha | Fixing apparatus for image forming apparatus |
| US9817343B2 (en) * | 2014-12-10 | 2017-11-14 | Canon Kabushiki Kaisha | Fixing apparatus having film, heater, and shielding member having a cutout and movable between a first position and a second position so that radiant light emitted through the cutout heats the film |
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