JPH0433288A - Heating resistor pattern forming method on fixing roller - Google Patents

Heating resistor pattern forming method on fixing roller

Info

Publication number
JPH0433288A
JPH0433288A JP13713990A JP13713990A JPH0433288A JP H0433288 A JPH0433288 A JP H0433288A JP 13713990 A JP13713990 A JP 13713990A JP 13713990 A JP13713990 A JP 13713990A JP H0433288 A JPH0433288 A JP H0433288A
Authority
JP
Japan
Prior art keywords
pattern
roller
heating resistor
fixing roller
resistor layer
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
Application number
JP13713990A
Other languages
Japanese (ja)
Other versions
JP2938143B2 (en
Inventor
Satoru Itaya
哲 板谷
Junichi Kanazawa
金沢 淳一
Takashi Kanamori
孝史 金森
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Oki Electric Industry Co Ltd
Original Assignee
Oki Electric Industry Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Oki Electric Industry Co Ltd filed Critical Oki Electric Industry Co Ltd
Priority to JP13713990A priority Critical patent/JP2938143B2/en
Publication of JPH0433288A publication Critical patent/JPH0433288A/en
Application granted granted Critical
Publication of JP2938143B2 publication Critical patent/JP2938143B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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  • Fixing For Electrophotography (AREA)
  • Control Of Resistance Heating (AREA)
  • Resistance Heating (AREA)

Abstract

PURPOSE:To form a delicate pattern necessary for temperature distribution control and improve printing quality by applying laser machining to a heating resistor layer near both ends of a roller, and forming a closed loop-shaped pattern section. CONSTITUTION:Machining laser such as YAG laser is radiated to a heating resistor layer 6 formed on the surface of a roller substrate, and the heating resistor layer 6 near both ends of a roller 10 is removed according to a pattern. An automatic stage is moved in the lateral direction or in the rotating direction while the laser is oscillated to cut pattern sections 6b. A heating resistor is located in the square pattern sections 6b. The inside and outside of the square cut portion are completely insulated, thus the resistance on the periphery of the roller 10 where the pattern sections 6b are formed is increased. The shape of the pattern sections 6b can be optionally changed, thus the resistance value can be optionally changed, even if the resistance value of the roller 10 before the pattern sections 6b are formed is dispersed, it can be corrected in the pattern forming process.

Description

【発明の詳細な説明】 (産業上の利用分野) 本発明は、電子写真方式のプリンタや複写機における定
着ローラ上への発熱抵抗体パターン形成方法に関するも
のである。
DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a method for forming a heating resistor pattern on a fixing roller in an electrophotographic printer or copying machine.

(従来の技術) 従来、電子写真方式のプリンタや複写機においては、帯
電させた感光体ドラムを光源により照射してその表面に
静電潜像を形成し、該静電潜像にトナーを付着させて現
像を行った後に該トナー像を記録媒体に転写させるよう
になっている。
(Prior Art) Conventionally, in electrophotographic printers and copying machines, a charged photoreceptor drum is irradiated with a light source to form an electrostatic latent image on its surface, and toner is attached to the electrostatic latent image. After the toner image is developed, the toner image is transferred to a recording medium.

上記電子写真方式のプリンタや複写機に使用される定着
ローラとしては、アルミニウム等の金属製パイプ内にヒ
ータを内蔵させ、このヒータが発生する熱により金属製
バイブを180℃〜200℃程度に加熱し、この金属製
パイプと圧着ローラの間に現像された用紙を通してトナ
ーを熱定着させるようにしている(実開昭61−160
464号公報参照)。
The fixing roller used in the above-mentioned electrophotographic printers and copying machines has a heater built into a metal pipe such as aluminum, and the heat generated by this heater heats the metal vibrator to about 180°C to 200°C. Then, the toner is thermally fixed by passing the developed paper between the metal pipe and the pressure roller.
(See Publication No. 464).

上記構成の定着ローラの場合、金属製バイブの表面温度
が通常使用可能な180°C〜200°C程度になるま
でには、ヒータの投入後5分間程度の立上がり時間を要
し、しかもIK−の電力を要する。
In the case of the fixing roller configured as described above, it takes about 5 minutes to rise after turning on the heater until the surface temperature of the metal vibrator reaches the normal usable range of 180°C to 200°C. of electricity.

そこで、熱の立上がり時間を短くし、消費電力を小さく
した定着ローラが提供されている(特願昭62−141
596号公報参照)。
Therefore, a fixing roller with a short heat rise time and low power consumption has been provided (Japanese Patent Application No. 62-141).
(See Publication No. 596).

第3図は消費電力の小さい定着ローラの断面図である。FIG. 3 is a sectional view of a fixing roller with low power consumption.

図に示すように、定着ローラは、ガラス、はうろう、セ
ラミクス等の低熱伝導体製のローラ基材1の表面に発熱
抵抗体層2を形成し、その表面をフッ素樹脂層3で覆い
、発熱抵抗体層2の両端にリング状の電極4を取り付け
た構造を有しており、画電極4間に電圧が印加されるよ
うになっている。
As shown in the figure, the fixing roller has a heating resistor layer 2 formed on the surface of a roller base material 1 made of a low thermal conductor such as glass, wax, ceramics, etc., and the surface thereof is covered with a fluororesin layer 3. It has a structure in which ring-shaped electrodes 4 are attached to both ends of the heating resistor layer 2, and a voltage is applied between the picture electrodes 4.

上記構成の定着ローラの場合、熱の立上がり時間は従来
の175程度以下にすることができ、しかも消費電力を
低減させることができる。しかし、定着ローラの両側か
ら放熱されるため、全長にわたって均一な温度分布を得
ることは困難である。
In the case of the fixing roller configured as described above, the heat rise time can be reduced to about 175 times or less compared to the conventional technology, and power consumption can be reduced. However, since heat is radiated from both sides of the fixing roller, it is difficult to obtain a uniform temperature distribution over the entire length.

そこで、均一な温度分布を得ることが可能な定着ローラ
が提供されている(実願昭63−151838号参照)
Therefore, a fixing roller that can obtain a uniform temperature distribution has been provided (see Utility Model Application No. 151838/1983).
.

第4図は温度分布の均一な定着ローラを示す図、第5図
は発熱抵抗体層の拡大図である。
FIG. 4 is a diagram showing a fixing roller with uniform temperature distribution, and FIG. 5 is an enlarged diagram of the heating resistor layer.

この場合、定着ローラの両側に発熱抵抗体層6でないパ
ターン部6aを形成し、両側部の抵抗値を増加させて電
流密度をローラ中央部より両側部を大きくし、通電時に
おける両側の発熱量が大きくなるようにしである0両側
からの放熱による温度低下が防止され、全長にわたって
均一な温度分布が得られる。
In this case, pattern portions 6a other than the heating resistor layer 6 are formed on both sides of the fixing roller, the resistance value of both sides is increased, the current density is made larger on both sides than the center of the roller, and the amount of heat generated on both sides when energized is As the temperature increases, a temperature drop due to heat radiation from both sides is prevented, and a uniform temperature distribution is obtained over the entire length.

この定着ローラを製造工程する場合、まず、ローラ基材
表面を溶剤で脱脂し、その後塩化スズと塩酸の水溶液に
1分間漬け、30秒水洗いする。その後、塩化パラジウ
ムと塩酸の水溶液に1分間漬け、30秒水洗いする工程
を数回繰り返して前処理を行う、前処理後、例えば、図
に示すようなパターン部6aの部分にメツキレジストイ
ンクを印刷するかテーピングを行うなどしてマスキング
を行い、メツキを施す、この後、このレジストインクや
テープを剥がすと、パターン部6aの部分はメツキされ
ずに残る。このようにしてパターン部6aの抵抗をロー
ラ中央部より高(することができる。
When manufacturing this fixing roller, first, the surface of the roller base material is degreased with a solvent, then immersed in an aqueous solution of tin chloride and hydrochloric acid for 1 minute, and washed with water for 30 seconds. After that, pretreatment is performed by repeating the process of soaking in an aqueous solution of palladium chloride and hydrochloric acid for 1 minute and rinsing with water for 30 seconds several times. After the pretreatment, for example, printing resist ink on the pattern part 6a as shown in the figure. Masking or plating is performed by taping or the like, and then, when the resist ink or tape is peeled off, the pattern portion 6a remains unplated. In this way, the resistance of the pattern portion 6a can be made higher than that of the center portion of the roller.

次に、上記発熱抵抗体層6及びパターン部6aの表面を
覆うようにPFA樹脂などのフッ素樹脂層8を10〜4
0μ園形成する。最後に、上記発熱体層6の両端に密着
するようにリング状の電極7が取り付けられる。
Next, 10 to 4 layers of fluororesin layer 8 such as PFA resin is applied so as to cover the surfaces of the heating resistor layer 6 and pattern portion 6a.
0μ garden is formed. Finally, ring-shaped electrodes 7 are attached to both ends of the heat generating layer 6 in close contact with each other.

(発明が解決しようとする課題) しかしながら、上記従来の定着ローラ上への発熱抵抗体
パターン形成方法においては、定着ローラの温度分布制
御に必要な細密なパターン部6aがメツキレジストの印
刷、テーピングによって形成されるため、レジストかに
しみ、隣のパターンとつながることがあり、細密なパタ
ーンを形成するには限度がある。したがって、温度分布
を適正に調整することが困難となり、その結果プリンタ
においてはトナーの定着状態がばらつき、印字品位が低
下してしまう。
(Problems to be Solved by the Invention) However, in the conventional method for forming a heating resistor pattern on the fixing roller, the fine pattern portion 6a necessary for controlling the temperature distribution of the fixing roller is formed by printing a plating resist or taping. Because of this, it may bleed through the resist and connect with neighboring patterns, which limits the ability to form fine patterns. Therefore, it becomes difficult to properly adjust the temperature distribution, and as a result, the toner fixation state varies in the printer, resulting in a decrease in print quality.

本発明は、上記従来の定着ローラ上への発熱抵抗体パタ
ーン形成方法の問題点を解決して、ローラ基材表面にパ
ターン部を形成するに当たり、温度分布制御に必要とさ
れる、より細密なパターンを形成することができ、印字
品位を向上させることが可能な定着ローラ上への発熱抵
抗体パターン形成方法を提供することを目的とする。
The present invention solves the problems of the conventional method of forming a heat generating resistor pattern on a fixing roller, and provides a more precise control method required for temperature distribution control when forming a pattern on the surface of a roller base material. It is an object of the present invention to provide a method for forming a heating resistor pattern on a fixing roller, which can form a pattern and improve printing quality.

(課題を解決するための手段) そのために、本発明の定着ローラ上への発熱抵抗体パタ
ーン形成方法においては、熱伝導性の低い材料からなる
ローラ基材の表面に発熱抵抗体層を形成し、ローラの両
端近傍の発熱抵抗体層にレーザ加工を施して閉鎖ループ
形のパターン部を形成して、該パターン部に包囲される
発熱抵抗体を外周の発熱抵抗体から絶縁する。
(Means for Solving the Problems) For this purpose, in the method for forming a heat generating resistor pattern on a fixing roller of the present invention, a heat generating resistor layer is formed on the surface of a roller base material made of a material with low thermal conductivity. The heating resistor layer near both ends of the roller is laser-processed to form a closed loop pattern, and the heating resistor surrounded by the pattern is insulated from the heating resistor on the outer periphery.

そして、ローラの両端に電極を接続する。Then, electrodes are connected to both ends of the roller.

(作用) 本発明によれば、上記のように熱伝導性の低い材料から
なるローラ基材の表面に発熱抵抗体層を形成し、ローラ
の両端近傍の発熱抵抗体層にレーザ加工を施して閉鎖ル
ープ形のパターン部を形成して、該パターン部に包囲さ
れる発熱抵抗体を外周の発熱抵抗体から絶縁する。
(Function) According to the present invention, a heating resistor layer is formed on the surface of the roller base material made of a material with low thermal conductivity as described above, and the heating resistor layer near both ends of the roller is subjected to laser processing. A closed loop pattern is formed to insulate the heat generating resistor surrounded by the pattern from the heat generating resistor on the outer periphery.

そして、ローラの両端に電極を接続すると、パターン部
に包囲される発熱抵抗体の部分は電気的に絶縁されてい
るので、発熱抵抗体が除去されているのと等価になり、
抵抗を増加させることができる。
When electrodes are connected to both ends of the roller, the part of the heating resistor surrounded by the pattern part is electrically insulated, so it is equivalent to removing the heating resistor.
resistance can be increased.

すなわち、ローラの端部近傍の抵抗が増加する。That is, the resistance near the end of the roller increases.

(実施例) 以下、本発明の実施例について図面を参照しながら詳細
に説明する。
(Example) Hereinafter, an example of the present invention will be described in detail with reference to the drawings.

第1図は本発明の実施例を示す定着ローラ上への発熱抵
抗体パターン形成方法の工程図、第2図はレーザ加工状
態図である。
FIG. 1 is a process diagram of a method of forming a heat generating resistor pattern on a fixing roller according to an embodiment of the present invention, and FIG. 2 is a diagram of a laser processing state.

まず、熱伝導性の低い材質、たとえばフェノール樹脂な
どの合成樹脂、すりガラス、結晶ガラスなどのガラス、
アルミナセラミクス、あるいはほうろう加工したステン
レスパイプ等のローラ基材の表面を、トリクレン、クロ
ロセン等の有機溶剤に浸漬するか、蒸気洗浄によって脱
脂を行う。
First, materials with low thermal conductivity, such as synthetic resins such as phenolic resin, glasses such as frosted glass and crystal glass,
The surface of the roller base material, such as alumina ceramics or enameled stainless steel pipe, is degreased by immersing it in an organic solvent such as trichlene or chlorocene, or by steam cleaning.

次に、このローラ基材を塩化スズと塩酸の溶液に1分間
漬け、30秒水洗後、続いて塩化パラジウムと塩酸の水
溶液に1分間漬けて30秒水洗する工程を数回繰り返し
て前処理を行う。
Next, the roller base material is immersed in a solution of tin chloride and hydrochloric acid for 1 minute, washed with water for 30 seconds, then immersed in an aqueous solution of palladium chloride and hydrochloric acid for 1 minute, and washed with water for 30 seconds. This process is repeated several times for pretreatment. conduct.

次に無電解N1−Pめっきを行ってローラ基材の表面に
均一な0.1〜1μ−の膜を形成し発熱抵抗体層6とす
る。この膜は、上記方法に限るものではなく、真空蒸着
や、厚膜印刷によって形成してもよい。次に、YAG 
レーザなどの加工用レーザによってローラ10の両端近
傍の発熱抵抗体層6をパターンに応じて除去する。
Next, electroless N1-P plating is performed to form a uniform 0.1 to 1 .mu.m film on the surface of the roller base material to form the heat generating resistor layer 6. This film is not limited to the above method, and may be formed by vacuum deposition or thick film printing. Next, YAG
The heating resistor layer 6 near both ends of the roller 10 is removed according to a pattern using a processing laser such as a laser.

この場合、第2図に示すようにレーザ光の下に発熱抵抗
体層6を形成したローラ10を置く。ローラ10は回転
方向及び横方向の移動が可能な図示しない自動ステージ
の上に配設される。レーザの出力条件は、発熱抵抗体層
6が完全に切れ、その下層のガラス又はほうろうの基材
がわずかに傷付くくらいの2〜5 KH2のパルス発振
に設定する。
In this case, as shown in FIG. 2, a roller 10 on which a heating resistor layer 6 is formed is placed under the laser beam. The roller 10 is placed on an automatic stage (not shown) that is movable in the rotational direction and the lateral direction. The laser output conditions are set to pulse oscillation of 2 to 5 KH2, which is enough to completely cut the heating resistor layer 6 and slightly scratch the underlying glass or enamel base material.

パターン部6bを切るときは、レーザを発振したまま自
動ステージを横方向や回転方向に動かす。
When cutting the pattern portion 6b, the motorized stage is moved laterally or in the rotational direction while the laser is being oscillated.

第4図及び第5図の例では四角のパターン部りa内の発
熱抵抗体はないが、この場合のパターン部6bの発熱抵
抗体は存在している。しかし、四角の切断部分の内側と
外側は完全に絶縁されているため、パターン部6bの形
成されるローラ10の周縁の抵抗は高くなる。
In the examples shown in FIGS. 4 and 5, there is no heating resistor in the square pattern area a, but in this case, the heating resistor in the pattern area 6b is present. However, since the inside and outside of the square cut portion are completely insulated, the resistance at the peripheral edge of the roller 10 where the pattern portion 6b is formed becomes high.

さらに上記発熱抵抗体層6及びパターン部6bの表面を
覆うようにPPA樹脂などのフッ素樹脂層8を10〜4
0μm形成する。そして、上記発熱抵抗体層6の両端に
密着するようにリング状の電極7が取り付けられる。
Furthermore, 10 to 4 layers of fluororesin 8 such as PPA resin are applied to cover the surfaces of the heating resistor layer 6 and the pattern portion 6b.
0 μm is formed. Then, ring-shaped electrodes 7 are attached to both ends of the heating resistor layer 6 in close contact with each other.

上記構成の定着ローラ上への発熱抵抗体パターン形成方
法において、パターン部6bの形状は任意に変更するこ
とができるので、抵抗値を任意に変えることができる。
In the method for forming a heat generating resistor pattern on the fixing roller having the above configuration, the shape of the pattern portion 6b can be changed arbitrarily, so that the resistance value can be changed arbitrarily.

また、パターン部6bを形成する前のローラ10の抵抗
値にばらつきがあっても、パターン形成工程でこれを修
正することができるので、めっき工程が著しく容易にな
る。
Further, even if there is variation in the resistance value of the roller 10 before forming the pattern portion 6b, this can be corrected in the pattern forming process, which greatly facilitates the plating process.

なお、本発明は上記実施例に限定されるものではなく、
本発明の趣旨に基づいて種々の変形が可能であり、これ
らを本発明の範囲から排除するものではない。
Note that the present invention is not limited to the above embodiments,
Various modifications are possible based on the spirit of the present invention, and these are not excluded from the scope of the present invention.

(発明の効果) 以上詳細に説明したように、本発明によれば、熱伝導性
の低い材料からなるローラ基材の表面に発熱抵抗体層を
形成し、ローラの両端近傍の発熱抵抗体層にレーザ加工
を施して閉鎖ループ形のパターン部を形成して、該パタ
ーン部に包囲される発熱抵抗体を外周の発熱抵抗体から
絶縁する。
(Effects of the Invention) As described above in detail, according to the present invention, a heating resistor layer is formed on the surface of a roller base material made of a material with low thermal conductivity, and the heating resistor layer is formed near both ends of the roller. A closed loop pattern is formed by laser processing, and the heat generating resistor surrounded by the pattern is insulated from the heat generating resistor on the outer periphery.

そして、ローラの両端に電極を接続すると、ノくターン
部に包囲される発熱抵抗体の部分は電気的に絶縁されて
いるので、発熱抵抗体が除去されているのと等価になり
、抵抗を増加させることができる。
Then, when electrodes are connected to both ends of the roller, the part of the heating resistor surrounded by the notch turns is electrically insulated, so it is equivalent to removing the heating resistor, and the resistance is reduced. can be increased.

したがって、印刷及びテーピングなどを使用する場合よ
り細密なパターンを形成することができ、非常に均一な
温度分布を得ることができる。これにより、例えば、電
子写真方式のプリンタの印字品位を大幅に向上させるこ
とができる。
Therefore, a finer pattern can be formed than when printing, taping, etc. are used, and a very uniform temperature distribution can be obtained. Thereby, for example, the printing quality of an electrophotographic printer can be significantly improved.

【図面の簡単な説明】[Brief explanation of the drawing]

第1図は本発明の発熱抵抗体パターン形成方法工程図、
第2図はレーザ加工状態図、第3図は消費電力の小さい
定着ローラの断面図、第4図は温度分布の均一な定着ロ
ーラを示す図、第5図は発熱抵抗体層の拡大図である。 特許出願人 沖電気工業株式会社 代理人 弁理士 川 合  誠(外1名)−二り一一二
仁と− 本発明の発熱抵抗体パターン形成方法工程間第 図 O し−ザ゛加工状懸図 第2図 ヲ貞責常力のノ1、さ−1足唱ローラのI印面図第3図
FIG. 1 is a process diagram of the heating resistor pattern forming method of the present invention;
Figure 2 is a diagram of the laser processing state, Figure 3 is a cross-sectional view of a fixing roller with low power consumption, Figure 4 is a diagram showing a fixing roller with uniform temperature distribution, and Figure 5 is an enlarged view of the heating resistor layer. be. Patent Applicant: Oki Electric Industry Co., Ltd. Agent, Patent Attorney: Makoto Kawai (and 1 other person) - Hitoshi Furi, and - Diagram showing the steps of the heating resistor pattern forming method of the present invention. Figure 2: I-seal of the foot-singing roller Figure 3

Claims (1)

【特許請求の範囲】 (a)熱伝導性の低い材料からなるローラ基材の表面に
発熱抵抗体層を形成し、 (b)ローラの両端近傍の発熱抵抗体層にレーザ加工を
施してパターン部を形成し、該パターン部に包囲される
発熱抵抗体を外周の発熱抵抗体から絶縁し、 (c)ローラの両端に電極を接続したことを特徴とする
定着ローラ上への発熱抵抗体パターン形成方法。
[Claims] (a) A heating resistor layer is formed on the surface of a roller base material made of a material with low thermal conductivity, and (b) a pattern is formed by laser processing the heating resistor layer near both ends of the roller. (c) a heat generating resistor pattern on a fixing roller, characterized in that the heat generating resistor surrounded by the pattern part is insulated from the heat generating resistor on the outer periphery; Formation method.
JP13713990A 1990-05-29 1990-05-29 Manufacturing method of fixing device Expired - Fee Related JP2938143B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13713990A JP2938143B2 (en) 1990-05-29 1990-05-29 Manufacturing method of fixing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13713990A JP2938143B2 (en) 1990-05-29 1990-05-29 Manufacturing method of fixing device

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JPH0433288A true JPH0433288A (en) 1992-02-04
JP2938143B2 JP2938143B2 (en) 1999-08-23

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6649463B2 (en) * 1998-11-06 2003-11-18 Matsushita Electric Industrial Co., Ltd. Regulating resistor network, semiconductor device including the resistor network, and method for fabricating the device
US6945828B2 (en) 1999-10-25 2005-09-20 Omron Corporation Sensor system and connector used therefor
US7361869B2 (en) * 2001-12-19 2008-04-22 Watlow Electric Manufacturing Company Method for the production of an electrically conductive resistive layer and heating and/or cooling device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6649463B2 (en) * 1998-11-06 2003-11-18 Matsushita Electric Industrial Co., Ltd. Regulating resistor network, semiconductor device including the resistor network, and method for fabricating the device
US6945828B2 (en) 1999-10-25 2005-09-20 Omron Corporation Sensor system and connector used therefor
US7361869B2 (en) * 2001-12-19 2008-04-22 Watlow Electric Manufacturing Company Method for the production of an electrically conductive resistive layer and heating and/or cooling device

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