JPS61223873A - Fixing device - Google Patents
Fixing deviceInfo
- Publication number
- JPS61223873A JPS61223873A JP6367085A JP6367085A JPS61223873A JP S61223873 A JPS61223873 A JP S61223873A JP 6367085 A JP6367085 A JP 6367085A JP 6367085 A JP6367085 A JP 6367085A JP S61223873 A JPS61223873 A JP S61223873A
- Authority
- JP
- Japan
- Prior art keywords
- recording paper
- fixing device
- heating body
- guide roller
- reflecting plate
- 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
- 238000010438 heat treatment Methods 0.000 claims abstract description 39
- 230000005855 radiation Effects 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000000843 powder Substances 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
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Fixing For Electrophotography (AREA)
- Advancing Webs (AREA)
Abstract
Description
【発明の詳細な説明】
〔発明の利用分野〕
本発明は静電記録装置に使用される加熱定着装置に係り
、特に、放射加熱に好適な記録紙の搬送および加熱体の
設置装置に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Application of the Invention] The present invention relates to a heat fixing device used in an electrostatic recording device, and particularly to a recording paper conveyance and heating body installation device suitable for radiation heating.
実開昭５７−６８２５５号公報に開示されている加熱定
着装置は、画像にトナー粉を用いるものであり、未定着
のトナー像をもつ記録紙上のトナーを加熱融解すること
により、定着させる装置である。The heat fixing device disclosed in Japanese Utility Model Application Publication No. 57-68255 uses toner powder for the image, and fixes the toner by heating and melting the toner on the recording paper that has an unfixed toner image. be.
この種の定着装置では、構造が簡単で小型、かつ、損失
熱量の少ないことが望まれる。This type of fixing device is desired to have a simple structure, be small in size, and have a small amount of heat loss.
第５図は従来の定着装置の断面側面図である６図のよう
に記録紙３の上に加熱体１を配列させ、おのおのの加熱
体３に対し反射板２が取りつけられている。FIG. 5 is a cross-sectional side view of a conventional fixing device. As shown in FIG. 6, heating elements 1 are arranged on a recording paper 3, and a reflecting plate 2 is attached to each heating element 3.
この構造で、加熱体１より放射された熱光線のうち、下
方に放射されたものは直接記録紙３に到達し、上方に放
射されたものは反射板２に反射された後、記録紙３に到
達し、記録紙３を加熱する。With this structure, among the heat rays emitted from the heating element 1, those emitted downwards directly reach the recording paper 3, and those emitted upwards are reflected by the reflecting plate 2 and then reach the recording paper 3. , and the recording paper 3 is heated.
しかし、この構造の定着装置では、記録紙３が発熱体に
対し下方にしか導かれていないため、上方に放射された
熱光線を反射する反射板２が必要で１反射板２の幅が加
熱体１の直径より著しく大きく、定着装置の搬送方向の
長さが反射板２の幅に規定されるため、定着装置が大型
化する、反射板２に反射される熱量が多く、反射損失が
大きい、反射熱光線に関し、加熱体１による死角が必ず
存在する等の欠点があった。However, in the fixing device with this structure, since the recording paper 3 is guided only downwards relative to the heating element, a reflector plate 2 is required to reflect the heat rays emitted upward, and the width of the reflector plate 2 is increased by the heating element. The fixing device is significantly larger than the diameter of the body 1, and the length of the fixing device in the transport direction is determined by the width of the reflecting plate 2, which increases the size of the fixing device.The amount of heat reflected by the reflecting plate 2 is large, resulting in large reflection loss. However, regarding the reflected heat rays, there are drawbacks such as the fact that there is always a blind spot due to the heating body 1.
本発明の目的は、反射板を著しく小型化するか、もしく
は無くした高効率小型定着装置を提供することにある。SUMMARY OF THE INVENTION An object of the present invention is to provide a highly efficient compact fixing device in which the reflector is significantly reduced in size or eliminated.
本発明の要点は記録紙をＵ字状に搬送し、その内側に加
熱体を設置することにより、加熱体の上方に放射された
熱光線および下方に放射された熱光線を直接記録紙に到
達せしめたことにある。The key point of the present invention is that the recording paper is conveyed in a U-shape and a heating element is installed inside it, so that the heat rays emitted above and below the heating element can directly reach the recording paper. It's because I was forced to do so.
以下１図面を参照しつつ本発明の詳細な説明する。第１
図は本発明による定着装置の一実施例を示す。第２図は
第１図に示された用紙搬送構造の一実施例を示す図であ
る６図中１は加熱体、４ａ。The present invention will be described in detail below with reference to one drawing. 1st
The figure shows an embodiment of a fixing device according to the present invention. FIG. 2 is a diagram showing an embodiment of the paper conveyance structure shown in FIG. 1. In FIG. 6, 1 is a heating element 4a.
４ｂは搬送用ガイドローラ、３は記録紙、８は熱光線漏
れ防止用反射板を示す。Reference numeral 4b indicates a conveying guide roller, 3 indicates a recording paper, and 8 indicates a reflective plate for preventing leakage of heat rays.
図に示す様に１本発明は、記録紙３をＵ字状に搬送し、
その内側に加熱体１を設置した構造となっている。なお
、本装置の開口部には、熱光線漏れ防止用反射板が設置
されている。As shown in the figure, the present invention conveys the recording paper 3 in a U-shape,
It has a structure in which a heating body 1 is installed inside it. Note that a reflective plate for preventing leakage of heat rays is installed at the opening of this device.
第１図において、図中右方からガイドローラ４ｂにより
定着装置内に導かれた未定着画像付記録紙３は、加熱体
１により加熱（第一回目の加熱）される。その後、ガイ
ドローラ４ａにより進行方向を逆転されその間、シャフ
ト５による死角内に入るため一旦加熱は中断される。そ
して、再び加熱体１により加熱（第二回目の加熱）たれ
た後、ガイドローラ４ｂにより排紙される。その際、加
熱体１に赤外線ヒータのように連続発熱体を用いた場合
は、記録紙３上の同一位置を二度加熱することになる。In FIG. 1, the recording paper 3 with an unfixed image guided into the fixing device from the right side in the figure by the guide roller 4b is heated by the heating member 1 (first heating). Thereafter, the direction of movement is reversed by the guide roller 4a, and during this time the heating is temporarily interrupted because it enters the blind spot caused by the shaft 5. After being heated again by the heating element 1 (second heating), the sheet is discharged by the guide roller 4b. At this time, if a continuous heating element such as an infrared heater is used as the heating element 1, the same position on the recording paper 3 will be heated twice.
また、キセノンフラッシュのようにパルス発熱体を用い
た場合は、記録紙搬送速度と発光周波数の調節により第
一回目の加熱と第二回目の加熱が記録紙３上の異なった
位置で行われることも可能である。すなわち、本定着装
置の加熱過程で、一度だけパルス加熱することが出来る
ということを意味する。In addition, when using a pulse heating element such as a xenon flash, the first heating and second heating can be performed at different positions on the recording paper 3 by adjusting the recording paper conveyance speed and light emission frequency. is also possible. That is, this means that pulse heating can be performed only once during the heating process of the fixing device.
第２図において、ガイドローラ４ａ、４ｂには記録紙の
両側端に備えられている搬送用の孔列のピッチに対応し
た突起が設置され、左右のガイドローラはシャフト５で
連結されており、確実に記録紙が搬送される。また、バ
ウンシング６で定着装置の全ての部品が連結され、ユニ
ット化されている。ハウジング６の上・下面は記録紙の
うねり防止用のガイド面となる。In FIG. 2, guide rollers 4a and 4b are provided with protrusions corresponding to the pitch of the conveyance hole rows provided at both ends of the recording paper, and the left and right guide rollers are connected by a shaft 5. The recording paper is transported reliably. Moreover, all the parts of the fixing device are connected by the bouncing device 6 and are made into a unit. The upper and lower surfaces of the housing 6 serve as guide surfaces to prevent the recording paper from undulating.
第３図は他の実施例であり、第１図と同様の加熱過程を
連続的に二度繰返す構造で、これにより記録紙３は表裏
両面連続加熱される。FIG. 3 shows another embodiment, which has a structure in which the same heating process as in FIG. 1 is repeated twice continuously, whereby both the front and back sides of the recording paper 3 are heated continuously.
第４図は他の実施例であり、７は反射板を示す。FIG. 4 shows another embodiment, where 7 indicates a reflecting plate.
この場合加熱体１およびガイドローラのシャフト５によ
り生じる死角の部分にのみ反射板７は設置される。In this case, the reflecting plate 7 is installed only in the blind area created by the heating body 1 and the shaft 5 of the guide roller.
このように１本実施例によれば、加熱体の上方。Thus, according to one embodiment, above the heating element.
下方とも直接記録紙を加熱する構造となっているため、
反射板が、著しく小型かもしくは不要で。Since the structure is such that the recording paper is directly heated in both the lower and lower parts,
The reflector is extremely small or unnecessary.
それゆえ、反射損失が著しく低減され、しかも、装置を
小型化することが可能である。また第３図のように二段
構造とすれば、容易に記録紙の表裏連続加熱ができ、そ
の装置も小型化出来る。また、第２図に示すように装置
のユニット化も容易に出来る等の種々の利点がある。Therefore, reflection loss is significantly reduced, and it is possible to downsize the device. Furthermore, if the apparatus is of a two-stage structure as shown in FIG. 3, continuous heating of the front and back surfaces of the recording paper can be easily performed, and the apparatus can also be made smaller. Furthermore, as shown in FIG. 2, there are various advantages such as the ability to easily unitize the device.
また、本実施例によれば、二段以上の積み重ね構造が容
易に出来、その際、記録紙は波状に搬送されるので、記
録紙の表裏両面連続加熱が容易に出来る。Further, according to this embodiment, a stacked structure of two or more stages can be easily formed, and since the recording paper is conveyed in a wavy manner, it is easy to continuously heat both the front and back sides of the recording paper.
本発明によれば、加熱体の上下、下方とも記録紙を直接
加熱するので、反射板が著しく小型かもしくは、不要と
なる。それゆえ、反射損失が著しく少なく、しかも装置
を小型化できる。According to the present invention, since the recording paper is directly heated both above and below the heating body, the reflecting plate is extremely small or becomes unnecessary. Therefore, the reflection loss is extremely low, and the device can be made smaller.
第１図は本発明の一施例の側面図、第２図は第１図に示
された構造の用紙搬送機構の一実施例の斜視図、第３図
、第４図はそれぞれ他の実施例の側面図、第５図は従来
の定着装置の断面側面図である。
１・・・加熱体、２・・・反射板、３・・・記録紙、４
１゜４２・・・ガイドローラ、５・・・シャフト、６・
・・ハウジング、７・・・反射板、８・・・熱光線漏れ
防止用反射板。FIG. 1 is a side view of one embodiment of the present invention, FIG. 2 is a perspective view of one embodiment of the paper conveyance mechanism having the structure shown in FIG. 1, and FIGS. 3 and 4 are views of other embodiments. An example side view, FIG. 5 is a cross-sectional side view of a conventional fixing device. 1... Heating body, 2... Reflection plate, 3... Recording paper, 4
1゜42...Guide roller, 5...Shaft, 6.
...Housing, 7...Reflector, 8...Reflector for preventing leakage of heat rays.
Claims (1)
定着装置において、 前記連続記録紙をＵ字状に搬送し、その内側に前記放射
加熱体を設置したことを特徴とする定着装置。 ２、前記定着装置を複数段重ね、前記連続記録紙を波状
に搬送し、前記記録紙の表および裏面を放射加熱する特
許請求の範囲第１項記載の定着装置。[Claims] 1. In a fixing device of a recording device that is equipped with a radiant heating body and uses continuous recording paper, the continuous recording paper is conveyed in a U-shape, and the radiant heating body is installed inside it. Features a fixing device. 2. The fixing device according to claim 1, wherein the fixing device is stacked in a plurality of stages, the continuous recording paper is conveyed in a wavy manner, and the front and back surfaces of the recording paper are heated by radiation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6367085A JPS61223873A (en) | 1985-03-29 | 1985-03-29 | Fixing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6367085A JPS61223873A (en) | 1985-03-29 | 1985-03-29 | Fixing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61223873A true JPS61223873A (en) | 1986-10-04 |
Family
ID=13236015
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6367085A Pending JPS61223873A (en) | 1985-03-29 | 1985-03-29 | Fixing device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61223873A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007304131A (en) * | 2006-05-08 | 2007-11-22 | Fuji Xerox Co Ltd | Flash fixing device and image forming apparatus using the same |
-
1985
- 1985-03-29 JP JP6367085A patent/JPS61223873A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007304131A (en) * | 2006-05-08 | 2007-11-22 | Fuji Xerox Co Ltd | Flash fixing device and image forming apparatus using the same |
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