JPH0435932A - Manufacture of thermal fixation roller - Google Patents
Manufacture of thermal fixation rollerInfo
- Publication number
- JPH0435932A JPH0435932A JP2142974A JP14297490A JPH0435932A JP H0435932 A JPH0435932 A JP H0435932A JP 2142974 A JP2142974 A JP 2142974A JP 14297490 A JP14297490 A JP 14297490A JP H0435932 A JPH0435932 A JP H0435932A
- Authority
- JP
- Japan
- Prior art keywords
- rubber layer
- irradiation device
- pattern
- fluororesin
- current value
- 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
- 238000004519 manufacturing process Methods 0.000 title claims description 11
- 229920001971 elastomer Polymers 0.000 claims abstract description 28
- 238000010304 firing Methods 0.000 claims abstract description 17
- 238000010438 heat treatment Methods 0.000 claims abstract description 16
- 238000000034 method Methods 0.000 claims abstract description 14
- 230000006866 deterioration Effects 0.000 claims abstract description 11
- 229910052751 metal Inorganic materials 0.000 claims description 10
- 239000002184 metal Substances 0.000 claims description 10
- 239000011248 coating agent Substances 0.000 abstract description 12
- 238000000576 coating method Methods 0.000 abstract description 12
- 239000011347 resin Substances 0.000 abstract description 7
- 229920005989 resin Polymers 0.000 abstract description 7
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 abstract description 5
- 229910052731 fluorine Inorganic materials 0.000 abstract description 5
- 239000011737 fluorine Substances 0.000 abstract description 5
- 230000002349 favourable effect Effects 0.000 abstract 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 10
- 239000004810 polytetrafluoroethylene Substances 0.000 description 10
- 229920002379 silicone rubber Polymers 0.000 description 6
- 239000004945 silicone rubber Substances 0.000 description 6
- 239000000463 material Substances 0.000 description 4
- 230000000704 physical effect Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 239000003973 paint Substances 0.000 description 3
- 230000004044 response Effects 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 239000004812 Fluorinated ethylene propylene Substances 0.000 description 1
- 229920001774 Perfluoroether Polymers 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004070 electrodeposition Methods 0.000 description 1
- HQQADJVZYDDRJT-UHFFFAOYSA-N ethene;prop-1-ene Chemical group C=C.CC=C HQQADJVZYDDRJT-UHFFFAOYSA-N 0.000 description 1
- 229920001973 fluoroelastomer Polymers 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- HCDGVLDPFQMKDK-UHFFFAOYSA-N hexafluoropropylene Chemical group FC(F)=C(F)C(F)(F)F HCDGVLDPFQMKDK-UHFFFAOYSA-N 0.000 description 1
- 230000001678 irradiating effect Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 229920009441 perflouroethylene propylene Polymers 0.000 description 1
- -1 polytetrafluoroethylene Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- BFKJFAAPBSQJPD-UHFFFAOYSA-N tetrafluoroethene Chemical group FC(F)=C(F)F BFKJFAAPBSQJPD-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Laminated Bodies (AREA)
- Fixing For Electrophotography (AREA)
Abstract
Description
【発明の詳細な説明】
[発明の目的]
(産業上の利用分野)
本発明は、電子複写機等の熱定着部に使用される熱定着
ローラの製造方法に係り、特に近赤外線照射装置を用い
る熱定着ローラの製造方法に関する。Detailed Description of the Invention [Object of the Invention] (Industrial Application Field) The present invention relates to a method for manufacturing a heat fixing roller used in a heat fixing section of an electronic copying machine, etc. The present invention relates to a method of manufacturing a heat fixing roller to be used.
(従来の技術)
近年、電子複写機やレーザビームプリンタ等の熱定着部
に使用される熱定着ローラにおいては、高画質化、低コ
スト化、長寿命化が強く要求されている。(Prior Art) In recent years, there has been a strong demand for higher image quality, lower cost, and longer life for thermal fixing rollers used in thermal fixing units of electronic copying machines, laser beam printers, and the like.
このような中で高画質が得られる熱定着ローラとして、
アルミ等の金属心軸上にンリコーンゴム等のゴム材料を
被覆し、このゴム層上にトナーとの離型性の良いPFA
(、パーフルオロアルコキシ樹脂)やPTFE (ポ
リテトラフルオロエチレン樹脂)等のフッ素樹脂層を形
成したものが知られている。Under these circumstances, as a heat fixing roller that can provide high image quality,
A rubber material such as silicone rubber is coated on a metal shaft such as aluminum, and PFA, which has good releasability from toner, is coated on this rubber layer.
(perfluoroalkoxy resin) or PTFE (polytetrafluoroethylene resin) are known.
フッ素材□脂層の形成にあたっては、フッ素樹脂塗料を
塗布し焼成する方法、フッ素樹脂チューブを被覆し熱融
着させる方法等が従来から行われている。In forming the fluorine material □ fat layer, conventional methods include applying a fluororesin paint and baking it, and coating and heat-sealing a fluororesin tube.
しかしながら、フッ素樹脂塗料を塗布し焼成する方法で
は、焼成温度が一般に高く、しかも温度制御が難しいた
めに、焼成工程中に基層であるゴム層が高温にさらされ
て熱劣化しやすいという問題がある。これに対処して様
々な方法が考案されているが、いずれも生産性が低下し
コスト高となる難点がある。However, in the method of applying and firing fluororesin paint, the firing temperature is generally high and temperature control is difficult, so there is a problem that the base rubber layer is exposed to high temperatures during the firing process and is susceptible to thermal deterioration. . Various methods have been devised to deal with this problem, but all of them have the disadvantage of decreasing productivity and increasing costs.
他方、フッ素樹脂チューブを用いる方法では、厚さ30
μm以下という薄肉のチューブの製造が技術的に困難な
ため、これより厚いチューブを使用せざるをえず熱応答
性に劣り定着性が低下するという問題がある。On the other hand, in the method using a fluororesin tube, the thickness is 30
Since it is technically difficult to manufacture tubes with a thickness of less than .mu.m, thicker tubes must be used, resulting in poor thermal response and poor fixing performance.
(発明が解決しようとする課題)
このように従来より、金属小軸上にゴム層を介してフッ
素樹脂層を設けた熱定着ローラが、トナーとの離型性が
良く高画質が得られるローラとして知られ、その製造方
法も種々開発され検討もされている。(Problems to be Solved by the Invention) Conventionally, heat fixing rollers in which a fluororesin layer is provided on a small metal shaft via a rubber layer have been developed as rollers that have good releasability from toner and can provide high image quality. Various manufacturing methods have been developed and studied.
しかしながらゴム層がフッ素樹脂焼成時の熱で劣化しや
すい、生産性に乏しくコスト高を招く、熱応答性に劣り
定着性が不良である等の難点かあり、未だ高画質で耐久
性に優れた高性能の熱定着ローラを低コストで安定に製
造しうる方法がなく、その開発が待たれている。However, there are some drawbacks, such as the rubber layer being easily deteriorated by the heat during fluororesin firing, poor productivity and high costs, and poor thermal response and poor fixing properties. There is no way to stably manufacture a high-performance heat fixing roller at low cost, and the development of such a method is awaited.
本発明はこのような要求に応えるべくなされたもので、
高画質で耐久性に優れた高性能の熱定着ローラを低コス
トで安定に製造しうる方法を提供することを目的とする
。The present invention has been made in response to such demands.
The purpose of the present invention is to provide a method for stably manufacturing a high-performance heat fixing roller with high image quality and excellent durability at low cost.
[発明の構成]
(課題を解決するための手段)
本発明は、金属小軸上にゴム層を設け、このゴム層上に
フッ素樹脂を被覆し、次いで焼成するにあたり、フッ素
樹脂を被覆した金属心軸を近赤外線照射装置を備えた加
熱炉内に収容し、その表面近傍から近赤外線を照射して
加熱焼成する熱定着ローラの製造方法において、予め前
記ゴム層の熱劣化を最小限に抑えかつ良好な焼成がなさ
れる焼成適正温度パターンを、前記近赤外線照射装置に
流れる電流値パターンとして記憶装置に記憶させておき
、この記憶させた電流値パターンに基づいて近赤外線照
射装置の出力を制御して前記フッ素樹脂の加熱焼成を行
うことを特徴としている。[Structure of the Invention] (Means for Solving the Problems) The present invention provides a rubber layer on a small metal shaft, coats a fluororesin on the rubber layer, and then burns the metal coated with the fluororesin. In a method for manufacturing a heat fixing roller in which a core shaft is housed in a heating furnace equipped with a near-infrared ray irradiation device and heated and baked by irradiating near-infrared rays from near the surface thereof, thermal deterioration of the rubber layer is minimized in advance. A suitable temperature pattern for firing that results in good firing is stored in a storage device as a pattern of current values flowing through the near-infrared irradiation device, and the output of the near-infrared irradiation device is controlled based on the stored current value pattern. The method is characterized in that the fluororesin is heated and fired.
本発明に使用されるゴム材料としては、耐熱性に優れか
つ適度な弾性を有するシリコーンゴムやフッ素ゴムか適
している。Suitable rubber materials for use in the present invention include silicone rubber and fluororubber, which have excellent heat resistance and appropriate elasticity.
またフッ素樹脂としては、たとえばPTFE。Further, as the fluororesin, for example, PTFE.
PFAや、テトラフルオロエチレンとパーフルオロプロ
ピレンとのコポリマーであるFEP (フッ化エチレン
プロピレン樹脂)等があげられる。Examples include PFA and FEP (fluorinated ethylene propylene resin), which is a copolymer of tetrafluoroethylene and perfluoropropylene.
このようなフッ素樹脂は、アルミ等の金属小軸上に常法
により上記したようなゴム材料を被覆して設けたゴム層
上に、例えばフッ素樹脂塗料を塗布する方法、フッ素樹
脂粉体を静電塗装する方法等により被覆される。Such fluororesin can be produced by applying fluororesin paint, for example, on a rubber layer formed by coating a small metal shaft such as aluminum with a rubber material such as the one described above, or by statically applying fluororesin powder. It is coated by electrocoating, etc.
さらに近赤外線照射装置を備えた加熱炉としては、たと
えば第2図に示すような、金メツキ等により高反射均一
曲面が形成された複数本の近赤外線ランプ1が内周面に
添って等配され、収容した未焼成のフッ素樹脂被覆2を
有するローラ3の表面全体に、近赤外線が均一かつ効率
よく照射されるようにしたものが好適に使用される。Furthermore, as a heating furnace equipped with a near-infrared irradiation device, as shown in FIG. It is preferable to use a roller in which the entire surface of the roller 3 containing the unfired fluororesin coating 2 is irradiated with near-infrared rays uniformly and efficiently.
なお、フッ素樹脂の吸収帯は近赤外線領域(波長約2.
5μm以下)にあるため、ローラ3表面のフッ素樹脂被
覆2は照射された近赤外線を吸収して選択的に加熱され
る。したがって内側のゴム層5が不必要に加熱されるこ
とがなくゴムの熱劣化が防止される。Note that the absorption band of fluororesin is in the near-infrared region (wavelength approximately 2.5 cm).
5 μm or less), the fluororesin coating 2 on the surface of the roller 3 absorbs the irradiated near-infrared rays and is selectively heated. Therefore, the inner rubber layer 5 is not heated unnecessarily, and thermal deterioration of the rubber is prevented.
(作 用)
本発明においては、金属小軸上にゴム層を介して被覆し
たフッ素樹脂は、その表面近傍から照射した近赤外線に
よって選択的に加熱され焼成されるが、ここで、近赤外
線照射装置の出力は、予め記憶袋5置に記憶させておい
た電流値パターンに基づくものであり、しかもこの電流
値パターンは、ゴム層の熱劣化を最小限に抑えかつ良好
な焼成がなされる焼成適正温度パターンを電流値パター
ンとして記憶装置に記憶させたものであるので、フッ素
樹脂は良好に焼成され、かつその間ゴム層の熱劣化は最
小限に抑えられる。しかも再現性に優れており、フッ素
樹脂が良好に焼成されかつゴム層の熱劣化も少ない高性
能の熱定着ローラを効率よく繰り返し安定して製造する
ことができる。(Function) In the present invention, the fluororesin coated on the small metal shaft via the rubber layer is selectively heated and fired by near-infrared rays irradiated from near the surface; The output of the device is based on a current value pattern stored in five memory bags in advance, and this current value pattern is a firing pattern that minimizes thermal deterioration of the rubber layer and achieves good firing. Since the appropriate temperature pattern is stored in the storage device as a current value pattern, the fluororesin can be fired satisfactorily, and thermal deterioration of the rubber layer can be suppressed to a minimum during that time. In addition, the reproducibility is excellent, and a high-performance heat fixing roller in which the fluororesin is baked well and the rubber layer is less likely to be deteriorated by heat can be repeatedly and stably manufactured efficiently.
(実施例) 次に本発明の実施例を図面を用いて説明する。(Example) Next, embodiments of the present invention will be described using the drawings.
第1図は、この実施例に使用される焼成装置のシステム
概略図である。FIG. 1 is a system schematic diagram of the firing apparatus used in this example.
同図において、6は、第2図に示したような高反射均一
曲面を有する近赤外線ランプ複数本を備えた加熱炉を示
し、この加熱炉6はトランス7を介して出カニニット8
に接続され、この出カニニット8に接続された交流電源
9より、これらのトランス7および出カニニット8を介
して所定の電力が供給されるようになっている。In the figure, reference numeral 6 denotes a heating furnace equipped with a plurality of near-infrared lamps having highly reflective uniform curved surfaces as shown in FIG.
A predetermined electric power is supplied from an AC power source 9 connected to the output unit 8 through the transformer 7 and the output unit 8.
また加熱炉6には、収容したローラの金属心軸近傍の温
度を検出するための熱電対10が挿入されており、この
熱電対9にシーケンサ11を介して接続された温度制御
装置12により、炉内温度が制御されるようになってい
る。すなわち熱電対10により測定された温度と予め入
力しておいた適正温度とが比較され、シーケンサ11を
介して出カニニット8に出力制御信号が出力され、これ
によって加熱炉6の温度制御が行われる。Furthermore, a thermocouple 10 is inserted into the heating furnace 6 to detect the temperature near the metal core axis of the contained roller, and a temperature control device 12 connected to the thermocouple 9 via a sequencer 11 controls the The temperature inside the furnace is controlled. That is, the temperature measured by the thermocouple 10 and the appropriate temperature input in advance are compared, and an output control signal is output to the output unit 8 via the sequencer 11, thereby controlling the temperature of the heating furnace 6. .
温度制御装置12から出力された出力制御信号はシーケ
ンサ11を介してデータロガ−13にも出力されるよう
になっており、ここで炉温の昇温パターンが記録される
とともに、電流値パターンとして記憶され、さらにこの
記憶した電流値パターンに基づく出力制御信号がシーケ
ンサ6を介して出カニニット3に出力され、これによっ
ても炉内温度が制御されるようになっている。The output control signal output from the temperature control device 12 is also output to the data logger 13 via the sequencer 11, where the temperature increase pattern of the furnace temperature is recorded and also stored as a current value pattern. Furthermore, an output control signal based on the stored current value pattern is outputted to the output unit 3 via the sequencer 6, thereby controlling the temperature inside the furnace.
以下、このような焼成装置を用いた本発明にかかる熱定
着ローラの製造例を具体的に記載する。Hereinafter, an example of manufacturing a heat fixing roller according to the present invention using such a baking device will be specifically described.
まずアルミ心軸上にブライマーを介してシリコーンゴム
層を形成したシリコーンゴムローラ(外径60a++a
、胴長330im)の表面に、PTFEディスバージョ
ンとしてAD−1(旭硝子社製)を浸漬法により塗布し
乾燥させてPTFE塗膜を形成した。First, a silicone rubber roller (outer diameter 60a++a
AD-1 (manufactured by Asahi Glass Co., Ltd.) was applied as a PTFE dispersion onto the surface of a 330-inch (body length: 330 mm) by a dipping method and dried to form a PTFE coating film.
次いで、このローラを加熱炉1内に収容して通電し、熱
電対5で測定した温度に基づいて電源出力を制御し、こ
れによって加熱炉1の温度を制御しなからPTFE塗膜
を焼成するとともに、データロガ−8に炉温の昇温パタ
ーンを記録させ、さ 炉らにその際の電流値パターンを
記憶させた。 制以後、この記憶させた電流値パタ
ーンに基づいて加熱炉1の電源出力を制御し、これによ
って加熱炉1の温度を制御しながら、上記と同様にして
表面にPTFE塗膜を形成し加熱炉1内に収容したロー
ラのPTFE塗膜を焼成する工程を縁り返して、計10
0本の熱定着ローラを製造した。Next, this roller is housed in the heating furnace 1 and energized, and the power output is controlled based on the temperature measured by the thermocouple 5, thereby controlling the temperature of the heating furnace 1 and baking the PTFE coating film. At the same time, the data logger 8 recorded the temperature increase pattern of the furnace, and the furnace memorized the current value pattern at that time. After the control, the power output of the heating furnace 1 is controlled based on this memorized current value pattern, and while controlling the temperature of the heating furnace 1, a PTFE coating film is formed on the surface in the same manner as above, and the heating furnace is heated. Reversing the process of baking the PTFE coating film of the roller housed in
0 heat fixing rollers were manufactured.
このようにして得られた熱定着ローラ、すなわち電流値
パターンに基づいて加熱炉1の電源出力を制御しながら
製造した熱定着ローラと、初めに熱電対の実測により制
御して得た熱定着ローラのシリコーンゴムおよびPTF
E焼成膜の物性を測定した結果を次表に示す。なおシリ
コーンゴムの物性は焼成前を100%としたときの残率
て示した。The heat fixing rollers obtained in this way, namely the heat fixing rollers manufactured while controlling the power output of the heating furnace 1 based on the current value pattern, and the heat fixing rollers obtained by controlling the power output of the heating furnace 1 first by actual measurements with thermocouples. silicone rubber and PTF
The results of measuring the physical properties of the E-fired film are shown in the following table. The physical properties of the silicone rubber are shown as the remaining percentage when the value before firing is taken as 100%.
またPTFE焼成膜に要求される物性を所期値として同
表に併せ示した。The physical properties required for the fired PTFE film are also shown in the same table as expected values.
(以下余白)
(以下余白)
表からも明らかなように本発明により得られた熱定着ロ
ーラは、焼成によるシリコーンゴム層の劣化が非常に小
さく、またPTFE塗膜の焼成も良好であった。しかも
再現性に優れ、これらの物性にバラツキはほとんど認め
られなかった。(Hereinafter, blank space) (Hereinafter, blank space) As is clear from the table, in the heat fixing roller obtained according to the present invention, the silicone rubber layer showed very little deterioration due to baking, and the PTFE coating film was also baked well. Furthermore, the reproducibility was excellent, and almost no variation was observed in these physical properties.
なお第3図に示したグラフは、データロガ−13に記録
された炉温の昇温曲線を示したもので、曲線(A)は最
初に電流値パターンとして記憶させた際のもの、曲線(
B)はその後記憶させた電流値パターンに基づいて炉温
を制御した際のものである。しかして両昇温曲線にほと
んど違いはなく、本発明が再現性に優れた方法であるこ
とを示している。The graph shown in FIG. 3 shows the temperature rise curve of the furnace temperature recorded in the data logger 13, where the curve (A) is the one when the current value pattern is first stored, and the curve (
B) shows when the furnace temperature was controlled based on the current value pattern that was subsequently stored. However, there is almost no difference between the two temperature rise curves, indicating that the present invention is a method with excellent reproducibility.
[発明の効果]
以上の説明からも明らかなように、本発明方法によれば
、ゴム層上に被覆したフッ素樹脂の焼成に近赤外線照射
装置を用い、予めゴム層の熱劣化を最小限に抑えかつ良
好な焼成がなされる焼成適正温度パターンを、前記近赤
外線照射装置に流れる電流値パターンとして記憶させて
おき、この電流値パターンに基づいて近赤外線照射装置
の出力を制御して焼成するするようにしたので、高画質
で耐久性に優れた高性能の熱定着ローラを低コストで安
定に製造することができる。[Effects of the Invention] As is clear from the above explanation, according to the method of the present invention, a near-infrared irradiation device is used to bake the fluororesin coated on the rubber layer, thereby minimizing thermal deterioration of the rubber layer in advance. A suitable firing temperature pattern that allows for low and good firing is stored as a current value pattern flowing through the near-infrared irradiation device, and firing is performed by controlling the output of the near-infrared irradiation device based on this current value pattern. As a result, a high-performance heat fixing roller with high image quality and excellent durability can be stably manufactured at low cost.
第1図は本発明の実施に使用される焼成装置のシステム
例を概略的に示す図、第2図は本発明の実施に使用され
る近赤外線照射装置を備えた加熱炉の一例を示す概略断
面図、第3図は本発明の一実施例における炉温の昇温曲
線を示したグラフである。
1・・・・・・・・・近赤外線ランプ
2・・・・・・・・・フッ素樹脂被覆
3・・・・・・・・・熱定着ローラ
4・・・・・・・・・金属各軸
5・・・・・・・・・ゴム層
6・・・・・・・・加熱炉
8・・・・・・・・・出カニニット
13・・・・・・データロガー
第2図
第3図Fig. 1 is a diagram schematically showing an example of a system of a firing device used in carrying out the present invention, and Fig. 2 is a schematic diagram showing an example of a heating furnace equipped with a near-infrared irradiation device used in carrying out the present invention. The cross-sectional view and FIG. 3 are graphs showing a temperature increase curve of the furnace temperature in one embodiment of the present invention. 1...Near infrared lamp 2...Fluororesin coating 3...Heat fixing roller 4...Metal Each axis 5......Rubber layer 6...Heating furnace 8...Output kaninit 13...Data logger Figure 2 Figure 3
Claims (1)
素樹脂を被覆し、次いで焼成するにあたり、フッ素樹脂
を被覆した金属心軸を近赤外線照射装置を備えた加熱炉
内に収容し、その表面近傍から近赤外線を照射して加熱
焼成する熱定着ローラの製造方法において、 予め前記ゴム層の熱劣化を最小限に抑えかつ良好な焼成
がなされる焼成適正温度パターンを、前記近赤外線照射
装置に流れる電流値パターンとして記憶装置に記憶させ
ておき、この記憶させた電流値パターンに基づいて近赤
外線照射装置の出力を制御して前記フッ素樹脂の加熱焼
成を行うことを特徴とする熱定着ローラの製造方法。(1) A rubber layer is provided on the metal core, this rubber layer is coated with fluororesin, and then, for firing, the metal core coated with fluororesin is placed in a heating furnace equipped with a near-infrared irradiation device. In the method for manufacturing a heat fixing roller in which near-infrared rays are irradiated from near the surface of the roller to heat and bake, an appropriate baking temperature pattern that minimizes thermal deterioration of the rubber layer and achieves good baking is determined in advance in the vicinity of the surface. The present invention is characterized in that a current value pattern flowing through the infrared ray irradiation device is stored in a storage device, and the output of the near-infrared irradiation device is controlled based on the stored current value pattern to heat and bake the fluororesin. A method of manufacturing a heat fixing roller.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2142974A JP3044745B2 (en) | 1990-05-31 | 1990-05-31 | Manufacturing method of heat fixing roller |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2142974A JP3044745B2 (en) | 1990-05-31 | 1990-05-31 | Manufacturing method of heat fixing roller |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH0435932A true JPH0435932A (en) | 1992-02-06 |
JP3044745B2 JP3044745B2 (en) | 2000-05-22 |
Family
ID=15327989
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2142974A Expired - Fee Related JP3044745B2 (en) | 1990-05-31 | 1990-05-31 | Manufacturing method of heat fixing roller |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP3044745B2 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH05232830A (en) * | 1992-02-24 | 1993-09-10 | Hokushin Ind Inc | Fixing roll |
JP2005319273A (en) * | 2004-04-09 | 2005-11-17 | Olympus Corp | Manufacturing method of endoscope flexible tube |
-
1990
- 1990-05-31 JP JP2142974A patent/JP3044745B2/en not_active Expired - Fee Related
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH05232830A (en) * | 1992-02-24 | 1993-09-10 | Hokushin Ind Inc | Fixing roll |
JP2005319273A (en) * | 2004-04-09 | 2005-11-17 | Olympus Corp | Manufacturing method of endoscope flexible tube |
Also Published As
Publication number | Publication date |
---|---|
JP3044745B2 (en) | 2000-05-22 |
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