JPS5843741B2 - Fusing device - Google Patents
Fusing deviceInfo
- Publication number
- JPS5843741B2 JPS5843741B2 JP55028771A JP2877180A JPS5843741B2 JP S5843741 B2 JPS5843741 B2 JP S5843741B2 JP 55028771 A JP55028771 A JP 55028771A JP 2877180 A JP2877180 A JP 2877180A JP S5843741 B2 JPS5843741 B2 JP S5843741B2
- Authority
- JP
- Japan
- Prior art keywords
- recording paper
- flash
- recording medium
- fixing device
- discharge tube
- 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.)
- Expired
Links
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
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Fixing For Electrophotography (AREA)
Description
【発明の詳細な説明】
本発明は、電子印刷機や複写機に使用されるフラッシュ
方式による定着装置の改善に係り、特に連続折り畳み形
式の記録用紙のスタック性の改善に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improvement in a flash-type fixing device used in an electronic printing machine or a copying machine, and particularly to an improvement in the stackability of continuous folding type recording paper.
従来、たとえば感光体の表面に形成された静電潜像を現
像して顕像化したトナーを記録用紙に転写する電子印刷
機や複写機においては、用紙の記録面に転写された未定
着像を定着装置によって加熱融着するような定着装置が
用いられている。Conventionally, for example, in electronic printing machines and copying machines that develop an electrostatic latent image formed on the surface of a photoreceptor and transfer the visualized toner onto recording paper, the unfixed image transferred to the recording surface of the paper is A fixing device is used that heats and fuses the images with a fixing device.
この定着装置はたとえば前記記録用紙の両側に離間対向
してキセノンランプを収容したフラッシュ装置と裏面に
放熱板をそなえる等の冷却手段を有する反射板を設け、
該フラッシュ装置を放電せしめることによって発生する
熱光線を前記未定着像のトナーに照射して記録紙の記録
面に融着せしめるようにしたものが周知である。This fixing device is provided with, for example, a flash device containing a xenon lamp and a reflection plate having a cooling means such as a heat dissipation plate on the back side, spaced and facing each other on both sides of the recording paper.
It is well known that the toner of the unfixed image is irradiated with heat rays generated by discharging the flash device to fuse it to the recording surface of the recording paper.
ところがこのようなフラッシュ方式による定着において
は未定着像を形成するトナーを瞬間的に高温に加熱する
と同時に記録紙にも熱光線がフラッシュされ、ラインプ
リンタ等の大量印刷する装置に適用した場合該装置の稼
動中は１秒につき２回程度の間隔で発光することにより
定着装置の加熱によって記録紙の水分を蒸発させること
になる。However, in fixing using such a flash method, the toner that forms the unfixed image is instantaneously heated to a high temperature, and at the same time the recording paper is also flashed with heat rays. During operation, the fixing device emits light at intervals of about twice per second, and the water on the recording paper is evaporated by the heating of the fixing device.
しかしてこの水蒸気が前記冷却された反射板に結露しさ
らにこの結露が流下して送りローラを濡らすことがあり
、搬送中の記録紙が前記反射板に触れ露が付着したり前
記送りローラで濡らされることによって、用紙にジャム
が発生し印字品質の低下およびスタッカーの機能を阻害
するという欠点があった。However, the water vapor from the lever may condense on the cooled reflector, and this condensation may flow down and wet the feed roller, and the recording paper being conveyed may come into contact with the reflector and get dew attached to it or get wet by the feed roller. As a result, paper jams occur, resulting in a decrease in print quality and impeding the function of the stacker.
本発明は前記欠点を解消すべくなされたものでフラッシ
ュによって記録紙から発生した湿気を吸引排除するよう
にした定着装置を提供するにあって、記録面に未定着像
を形成した記録用紙に対して、当該未定着像に閃光を浴
せるフラッシュ定着装置において、前記記録用紙の近傍
の雰囲気を換気する手段を附設したことを特徴とするも
のである。The present invention has been made in order to solve the above-mentioned drawbacks, and in providing a fixing device that sucks and removes moisture generated from a recording paper by a flash, it is possible to fix The present invention is characterized in that the flash fixing device for exposing the unfixed image to flash light is provided with means for ventilating the atmosphere in the vicinity of the recording paper.
つづいて本発明に係る定着装置の実施例について詳細に
説明する。Next, embodiments of the fixing device according to the present invention will be described in detail.
図面は、本発明に係る定着装置の一実施例の概略構成を
示す１部所面した側面図で、１は折り畳み形式の連続記
録用紙、２は記録用紙１の記録面に未定着像として形成
されたトナー、３はフラッシュランプ３１を収容したフ
ラッシュ装置、４は反射板４１の裏面に冷却流体通路４
２を有する反射装置、５は記録用紙１およびトナー２か
ら発生する蒸気体等を吸引排出するための吸引ダクト、
６および７は前記吸引ダクト５の前記記録用紙１の両面
におけるそれぞれの吸入口、８は吸引ブロワ−１９およ
び１０は定着装置に属しないフィードロールおよびスタ
ッカーである。The drawing is a partial side view showing the schematic configuration of an embodiment of the fixing device according to the present invention, in which 1 is a folded continuous recording sheet, and 2 is an image formed as an unfixed image on the recording surface of the recording sheet 1. 3 is a flash device containing a flash lamp 31; 4 is a cooling fluid passage 4 on the back side of the reflection plate 41;
2 is a reflection device, 5 is a suction duct for sucking and discharging vapor generated from the recording paper 1 and the toner 2;
Reference numerals 6 and 7 are suction ports of the suction duct 5 on both sides of the recording paper 1, 8 is a suction blower, and 19 and 10 are feed rolls and stackers that do not belong to the fixing device.
かかる構成において矢印Ａ方向に移動する記録用紙１の
記録面に、図示しない感光体より転写された未定着トナ
ー像２を前記記録用紙１に離間対向したフラッシュラン
プ３１を照射し該ランプより発生する熱光線と、フラッ
シュ効率を高めるために記録用紙１を挾んで前記フラッ
シュ装置と対向して設けられた反射装置４０反射板から
の反射熱光線とによって、前記トナー２を記録用紙１に
融着させるようにしたものである。In this configuration, an unfixed toner image 2 transferred from a photoreceptor (not shown) to the recording surface of the recording paper 1 moving in the direction of arrow A is irradiated with a flash lamp 31 facing away from the recording paper 1 and generated by the lamp. The toner 2 is fused to the recording paper 1 by the heat rays and the reflected heat rays from the reflection plate of the reflection device 40, which is provided facing the flash device and sandwiching the recording paper 1 in order to increase flash efficiency. This is how it was done.
しかしながらラインプリンタ等の大量印刷装置において
は、記録用紙１がフィードロール７によって走行するに
伴い間欠的にフラッシュを続けるわけであるが、通常１
秒につき２回程度の照射が行なわれ定着装置全体が加熱
されるので、反射板４１の裏面に強制冷風ダクト４２を
設け、さらに必要によってはフラッシュ装置３の方にも
同様の冷却手段３２を設けて過熱を防止している。However, in large-volume printing devices such as line printers, the recording paper 1 continues to flash intermittently as it runs by the feed roll 7;
Since irradiation is performed approximately twice per second and the entire fixing device is heated, a forced cold air duct 42 is provided on the back surface of the reflection plate 41, and if necessary, a similar cooling means 32 is also provided for the flash device 3. This prevents overheating.
この場合定着装置内の雰囲気温度に比較し反射板４１の
記録用紙１の影になる部位の温度が著しく低くなり、こ
の部分に記録用紙より蒸発した水分が結露し、甚しい場
合はこれが滴下してフィードロール９を濡らし、スタッ
カー１０に記録紙を収容する際前述の如き欠点が発生す
るわけである。In this case, the temperature of the portion of the reflecting plate 41 that is in the shadow of the recording paper 1 becomes significantly lower than the ambient temperature inside the fixing device, and moisture that has evaporated from the recording paper condenses on this portion, and in severe cases, this may drip. When the feed roll 9 is wetted and the recording paper is stored in the stacker 10, the above-mentioned drawback occurs.
これを改善するために本発明においては、定着装置の入
口の前記記録用紙１０両面附近の空間３３および３４に
おげろ、該定着装置の全幅にわたった吸引口６および７
を具備した吸引ダクト５を設け、該ダクトに接続したブ
ロワ−８によって定着装置内における記録用紙１０両面
の雰囲気を換気するようにしたものである。In order to improve this, in the present invention, suction ports 6 and 7 are provided in spaces 33 and 34 near both sides of the recording paper 10 at the entrance of the fixing device, and over the entire width of the fixing device.
A suction duct 5 is provided, and a blower 8 connected to the duct is used to ventilate the atmosphere on both sides of the recording paper 10 in the fixing device.
かかる構成によれば、定着装置内でフラッシュによって
記録用紙から発生する水分は、前記吸引口よりブロワ−
によって常時排出され、所定の雰囲気湿度が維持出来る
ので、反射板における結露およびフィードローラの濡れ
に起因する記録用紙のジャム等がなくｋす、印字品質の
向上および記録用紙のスタッカーの性能安定に効果があ
る。According to this configuration, the moisture generated from the recording paper by the flash in the fixing device is removed from the suction port by the blower.
Since it is constantly discharged and a predetermined atmospheric humidity can be maintained, jams of recording paper caused by condensation on the reflector and wetting of the feed roller are eliminated, and this is effective in improving printing quality and stabilizing the performance of the recording paper stacker. There is.
図面は、本発明に係る定着装置の一実施例の概略構成を
示す１部所面した側面図である。
１：記録用紙、２：トナー、３：フラッシュ装置、４：
反射装置、５：吸引ダクト、６および７：吸引口、８：
吸引ブロワ−９：フィードロール、１０ニスタッカ−８The drawing is a partial side view showing a schematic configuration of an embodiment of a fixing device according to the present invention. 1: Recording paper, 2: Toner, 3: Flash device, 4:
Reflector, 5: Suction duct, 6 and 7: Suction port, 8:
Suction blower-9: Feed roll, 10 Ni stacker-8
Claims (1)
送される記録媒体と、該記録媒体の一側面に設けられ、
該記録媒体上に形成された未定着像に閃光を浴びせるこ
とにより該未定着像を該記録媒体上に定着せしめる閃光
放電管と、該記録媒体の他側面に該閃光放電管と対向し
て設けられる反射板と、を備えてなる定着装置において
、該閃光放電管および／または反射板の裏面に設けたダ
クトと、該閃光放電管および該反射板の上方に設けられ
、該ダクト及び該記録媒体両面近傍の雰囲気を換気する
換気手段とを具備してなることを特徴とする定着装置。1. A recording medium that is conveyed in a substantially vertical direction while holding an unfixed image on its surface, and a recording medium provided on one side of the recording medium,
A flash discharge tube that fixes the unfixed image on the recording medium by shining a flash on the unfixed image formed on the recording medium, and a flash discharge tube provided opposite to the flash discharge tube on the other side of the recording medium. a duct provided on the back surface of the flash discharge tube and/or the reflection plate; a duct provided above the flash discharge tube and the reflection plate, the duct and the recording medium; A fixing device comprising: ventilation means for ventilating the atmosphere near both surfaces.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP55028771A JPS5843741B2 (en) | 1980-03-07 | 1980-03-07 | Fusing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP55028771A JPS5843741B2 (en) | 1980-03-07 | 1980-03-07 | Fusing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS56125781A JPS56125781A (en) | 1981-10-02 |
| JPS5843741B2 true JPS5843741B2 (en) | 1983-09-28 |
Family
ID=12257662
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP55028771A Expired JPS5843741B2 (en) | 1980-03-07 | 1980-03-07 | Fusing device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5843741B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6238489A (en) * | 1985-08-13 | 1987-02-19 | Matsushita Electric Ind Co Ltd | Heat fixing device |
| JPH0795214B2 (en) * | 1986-10-03 | 1995-10-11 | 株式会社日立製作所 | Flash fixing device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54173746U (en) * | 1978-05-29 | 1979-12-07 |
-
1980
- 1980-03-07 JP JP55028771A patent/JPS5843741B2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS56125781A (en) | 1981-10-02 |
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