JPH0720742A - Electrophotographic image fixing method - Google Patents

Electrophotographic image fixing method

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Publication number
JPH0720742A
JPH0720742A JP16440193A JP16440193A JPH0720742A JP H0720742 A JPH0720742 A JP H0720742A JP 16440193 A JP16440193 A JP 16440193A JP 16440193 A JP16440193 A JP 16440193A JP H0720742 A JPH0720742 A JP H0720742A
Authority
JP
Japan
Prior art keywords
fixing
image
release agent
roll
electrophotographic
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
Application number
JP16440193A
Other languages
Japanese (ja)
Inventor
Akiko Oikawa
亜紀子 及川
Toshiya Sato
俊也 佐藤
Katsuyoshi Onose
勝義 小野瀬
Keijirou Yagi
恵次郎 矢木
Tomoji Kitagishi
外茂治 北岸
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP16440193A priority Critical patent/JPH0720742A/en
Publication of JPH0720742A publication Critical patent/JPH0720742A/en
Pending legal-status Critical Current

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  • Fixing For Electrophotography (AREA)

Abstract

PURPOSE:To provide an image fixing method and an electrophotographic device having excellent offset resistance and capable of obtaining a high-quality image having excellent color development property in an OHP image after fixing. CONSTITUTION:In the electrophotographic image fixing method provided with a thermal fixing roll 1 and a pressure roll 2 rotating while they are in press- contact with each other, and having a means for supplying release agent to the roll 1, when the image is fixed at fixing temperature T( deg.C), by assuming that the ratio of release agent weight applied per unit area to the roll 1 to toner sticking weight per unit area on a recording carrier 3 is expressed by A, and B=0. 001T-A, the relation of 0.08<=B<0.13 is satisfied. Offsetting can be prevented by satisfying the relation and also the high-quality OHP image having excellent color development property can be obtained.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】本発明はオフセット防止液塗布手
段を有する電子写真画像定着方法に関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electrophotographic image fixing method having an offset preventing liquid coating means.

【0002】[0002]

【従来の技術】レーザプリンタ,複写機におけるヒート
ロール定着方式では、少なくとも一方が加熱された一対
の定着ロールを圧接し、これら定着ロール間にトナー像
を転写した担体を通過させることにより、トナー像を加
熱及び加圧し担体上に定着する。この場合、定着時に溶
融したトナーが定着ロールに付着するオフセット現象が
発生しやすいことから、従来は、定着ロール表面に離型
性に優れたシリコーンオイルなどの離型剤を一定量塗布
し、トナーが定着ロール表面に付着しないようにしてい
る。ところで、記録担体の材質、記録担体上のトナー量
及び定着温度などによって、最適な離型剤塗布量は変化
することが知られている。特にカラートナーを用いたプ
リンタや複写機によるフルカラー画像は、イエロー,マ
ゼンタ,シアンの3色のトナーの重ね合わせにより形成
されるため、従来のモノクロ画像に比べ担体上のトナー
量が多く、オフセットが発生しやすい。このため従来に
比較し、離型剤を多量に塗布することが必要であり、例
えば、普通紙に転写されたA4サイズフルカラー画像の
定着には離型剤の塗布量は約50mg/枚必要であり、こ
れは同サイズ白黒画像定着時の数倍の塗布量である。
2. Description of the Related Art In a heat roll fixing system in a laser printer or a copying machine, a pair of fixing rolls, at least one of which is heated, are brought into pressure contact with each other, and a carrier on which a toner image is transferred is passed between the fixing rolls to form a toner image. Is heated and pressed to fix onto the carrier. In this case, since an offset phenomenon in which the toner melted during fixing adheres to the fixing roll is likely to occur, conventionally, a fixed amount of a releasing agent such as silicone oil having excellent releasing property is applied on the surface of the fixing roll to remove the toner. Does not adhere to the surface of the fixing roll. By the way, it is known that the optimum release agent coating amount changes depending on the material of the record carrier, the amount of toner on the record carrier, the fixing temperature, and the like. In particular, a full-color image formed by a printer or a copying machine using color toner is formed by superimposing toners of three colors of yellow, magenta, and cyan. Likely to happen. For this reason, it is necessary to apply a large amount of release agent as compared with the conventional method. For example, about 50 mg / sheet of release agent is required to fix an A4 size full-color image transferred on plain paper. Yes, this is several times the amount of coating when fixing a monochrome image of the same size.

【0003】この離型剤塗布やその量に関する制御法に
関する提案には、特公昭64−1032号,特公平4−134476
号公報などがある。
Proposals concerning the method of coating the release agent and controlling the amount thereof are disclosed in JP-B-64-1032 and JP-B-4-134476.
There is a bulletin, etc.

【0004】[0004]

【発明が解決しようとする課題】しかし、定着ロールに
塗布される離型剤塗布量の増加に伴って、新たな問題が
生じる。例えば、余剰な離型剤により定着ロールが膨潤
し、装置自体の寿命が低下する。また、定着後の画像の
品質を劣化させることも知られている。特にOHPフィル
ムは紙に比べ離型剤が吸収されにくいため、その外観及
び触感に問題を生じるなどの影響を受けやすい。さらに
その投影画像は鮮やかさに欠けた暗いものとなってしま
う。これはつぎのような理由による。一般に、離型剤塗
布量の増加に伴い定着画像の表面状態は粗くなる。表面
が粗い画像ではその表面で散乱する光の割合が増加し、
有効に使われる光の割合が減少するため、投影画像は暗
いものとなる。
However, as the amount of the release agent applied to the fixing roll increases, a new problem arises. For example, the fixing agent swells due to the excess release agent, which shortens the life of the apparatus itself. It is also known to deteriorate the quality of the image after fixing. In particular, since OHP films are less likely to absorb the release agent than paper, they are easily affected by problems such as appearance and touch. Furthermore, the projected image becomes dark without vividness. This is for the following reasons. In general, the surface condition of a fixed image becomes rough as the amount of release agent applied increases. An image with a rough surface will increase the proportion of light scattered by that surface,
The projected image is dark because the percentage of light that is effectively used is reduced.

【0005】従って、オフセット防止だけでなく、OH
P画像の発色性という別の観点からも定着ロールへの離
型剤塗布量を最適化する必要がある。
Therefore, not only offset prevention but also OH
It is necessary to optimize the amount of the release agent applied to the fixing roll from another viewpoint of the color development of the P image.

【0006】上記従来例では、このような問題点を解決
するため、記録担体の材質,定着温度など諸条件に応じ
離型剤塗布量の制御を行っている。しかしこれらの方法
では何らかの特別な制御手段が必要であり、装置の小型
化,低コスト化を困難にしている。
In the above-mentioned conventional example, in order to solve such a problem, the release agent coating amount is controlled according to various conditions such as the material of the recording carrier and the fixing temperature. However, these methods require some special control means, which makes downsizing and cost reduction of the device difficult.

【0007】上記に鑑み、本発明は記録担体の材質によ
らず、優れた品質の画像を、特別な制御手段なしで簡単
に得ることができる電子写真画像定着方法及び電子写真
画像定着装置を提供することにある。
In view of the above, the present invention provides an electrophotographic image fixing method and an electrophotographic image fixing device which can easily obtain an image of excellent quality regardless of the material of the record carrier without special control means. To do.

【0008】[0008]

【課題を解決するための手段】本発明によれば、上記目
的は、記録担体上の未定着トナー像を定着するための一
対の定着ロールと、前記定着ロールに接触して前記定着
ロールに離型剤を塗布する離型剤塗布手段を有する定着
装置において、定着条件に応じた最適範囲量の離型剤を
定着ロールに塗布することによって達成される。
According to the present invention, the above object is to provide a pair of fixing rolls for fixing an unfixed toner image on a recording carrier, and a fixing roll in contact with the fixing rolls. In a fixing device having a release agent applying means for applying a release agent, the release agent is applied to the fixing roll in an amount in the optimum range according to the fixing conditions.

【0009】[0009]

【作用】すなわち本発明では、定着温度,記録担体上の
トナー量,定着ロールへの離型剤塗布量の3条件の関係
を最適化することにより、オフセットを防止することが
できる。また、定着後の画像特にOHP画像について
は、明るく鮮やかな投影画像が得られ、優れた品質の画
像を特別な制御手段なしで簡単に得ることができる。
That is, in the present invention, offset can be prevented by optimizing the relationship among the three conditions of the fixing temperature, the amount of toner on the recording medium, and the amount of the release agent applied to the fixing roll. Further, a bright and vivid projected image can be obtained for an image after fixing, particularly an OHP image, and an image of excellent quality can be easily obtained without special control means.

【0010】[0010]

【実施例】本発明を実施例により説明する。EXAMPLES The present invention will be described with reference to examples.

【0011】図1は本発明の実施例1,2,3,4及び
5を実施した定着実験機の模式断面図である。定着ロー
ルにはシリコーンゴムの1層構造のもので、層厚1.5m
m,硬度40度,ロール径30.0mmφ のものを用い、
加圧ロールはシリコーンゴムの1層構造のもので、層厚
1.5mm,硬度40度,ロール径30.0mmφのものを用
いた。加熱装置は加圧ロール側にも取り付けた。また、
定着ロールには、オフセット防止のための離型剤塗布手
段を取り付けた。
FIG. 1 is a schematic cross-sectional view of a fixing experimental machine in which Examples 1, 2, 3, 4 and 5 of the present invention are carried out. The fixing roll has a single layer structure of silicone rubber, and the layer thickness is 1.5 m.
m, hardness 40 degrees, roll diameter 30.0 mmφ,
The pressure roll had a one-layer structure of silicone rubber and had a layer thickness of 1.5 mm, a hardness of 40 degrees, and a roll diameter of 30.0 mmφ. The heating device was also attached to the pressure roll side. Also,
The fixing roll was equipped with a release agent coating means for preventing offset.

【0012】図2は本発明の効果をみるために用いた電
子写真装置の概略図である。有機光導電体層を表面に形
成した感光ベルト11は矢印の方向に回転する。帯電器
17によって感光ベルト11の表面に所定の電荷が付与
され、画像情報に応じて制御されたレーザ16が照射さ
れた部分の電荷が消去されて、感光ベルト11の表面に
静電潜像が形成される。次いで、現像器(イエロー)1
2に収容されている現像剤中で摩擦帯電されたトナーを
もって、感光ベルト11の表面に形成されている静電潜
像を現像し可視像とし、この可視像を中間転写ドラム1
9上へ転写する。この行程をさらに現像器(マゼンタ)
13,現像器(シアン)14,現像器(ブラック)15
を用いて行い、中間転写ドラム19上に4色を重ねた可
視画像を形成する。この可視画像を転写器20を用いて
記録担体21上へ転写し、定着器22により加熱定着す
る。
FIG. 2 is a schematic view of an electrophotographic apparatus used to see the effects of the present invention. The photosensitive belt 11 having the organic photoconductor layer formed on its surface rotates in the direction of the arrow. A predetermined charge is applied to the surface of the photosensitive belt 11 by the charger 17, the charge of the portion irradiated by the laser 16 controlled according to the image information is erased, and an electrostatic latent image is formed on the surface of the photosensitive belt 11. It is formed. Next, developing device (yellow) 1
The electrostatic latent image formed on the surface of the photosensitive belt 11 is developed into a visible image with the toner frictionally charged in the developer housed in the intermediate transfer drum 1.
9 Transfer to above. This process is further processed in the developing device (magenta).
13, developing device (cyan) 14, developing device (black) 15
Is used to form a visible image on the intermediate transfer drum 19 in which four colors are superimposed. This visible image is transferred onto the record carrier 21 by using the transfer device 20, and is fixed by heating by the fixing device 22.

【0013】一方、本発明の実施例及び比較例に用いた
トナーはビスフェノールポリエステル樹脂(Mw=12,0
00、Mw/Mn=8.9,Tg=56℃,Tm=100
℃)100重量部に対して以下に示す配合比の着色剤及
び帯電制御剤を用いて得た。但し、Mwは重量平均分子
量、Mnは数平均分子量、Tgはガラス転移温度、Tm
は軟化温度である。
On the other hand, the toner used in the examples of the present invention and the comparative examples is a bisphenol polyester resin (Mw = 12.0).
00, Mw / Mn = 8.9, Tg = 56 ° C., Tm = 100
(° C.) 100 parts by weight of a colorant and a charge control agent having the following compounding ratio were used. However, Mw is a weight average molecular weight, Mn is a number average molecular weight, Tg is a glass transition temperature, Tm
Is the softening temperature.

【0014】 マゼンタ C.I.ピグメントレッド206 ………………… 4.0重量部 C.I.ソルベントレッド109 ………………… 1.5重量部 含クロム有機酸塩 …………………………………… 4.0重量部 シアン フタロシアニン顔料 ………………………………… 5.0重量部 含クロム有機酸塩 …………………………………… 4.0重量部 イエロー ピグメントイエロー6 ……………………………… 5.0重量部 含クロム有機酸塩 …………………………………… 4.0重量部 黒 カーボンブラック …………………………………… 5.0重量部 含クロム有機酸塩 …………………………………… 4.0重量部 トナー及び現像剤の作成方法は、上記の配合比からなる
配合物をロールミルで加熱混合し、放冷後、カッティン
グミルで粗粉砕し、さらに超音速ジェットミルで微粉砕
したものをじぐざぐ分級機で分級し、平均粒径11μm
のトナーを作成し、フェライトキャリア(F−150:
パウダーテック社製)と3:97(重量比)の割合で混
合し2成分系現像剤を作成した。
Magenta C. I. Pigment Red 206 …………………… 4.0 parts by weight C.I. I. Solvent Red 109 …………………… 1.5 parts by weight Chromium-containing organic acid salt ……………………………… 4.0 parts by weight Cyan phthalocyanine pigment …………………… ……………… 5.0 parts by weight Chromium-containing organic acid salt …………………………………… 4.0 parts by weight Yellow Pigment Yellow 6 ………………………………………… 5.0 parts by weight Chromium-containing organic acid salt …………………………………… 4.0 parts by weight Black carbon black …………………………………… 5.0 parts by weight Part Chromium-containing organic acid salt …………………………………… 4.0 parts by weight To prepare the toner and developer, heat-mix the mixture with the above mixing ratio in a roll mill and let it stand. After cooling, coarsely crushed with a cutting mill, then finely crushed with a supersonic jet mill, and then classified with a jagged classifier to obtain an average particle diameter of 11 μm.
The toner of the ferrite carrier (F-150:
Powder Tech Co., Ltd.) and 3:97 (weight ratio) were mixed to prepare a two-component developer.

【0015】図1に示した定着装置を図2に示した構成
の電子写真装置に取付け、上記したトナー及び現像剤を
用いて、評価を行った。定着条件は、プロセススピード
70mm/s(但しOHPの場合は35mm/s),ニップ
幅3.0mmとした。
The fixing device shown in FIG. 1 was attached to the electrophotographic apparatus having the structure shown in FIG. 2, and the toner and developer described above were used for evaluation. The fixing conditions were a process speed of 70 mm / s (however, 35 mm / s for OHP) and a nip width of 3.0 mm.

【0016】〈実施例1〉定着温度150℃とし、Bの
値を0〜0.15 の範囲で変化させ、得られた画像につ
いてオフセット、画質の評価を行った。
Example 1 The fixing temperature was set to 150 ° C., the value of B was changed in the range of 0 to 0.15, and the obtained image was evaluated for offset and image quality.

【0017】〈実施例2〉定着温度を130℃,Bの値
を0〜0.13 の範囲として、実施例1と同様に行っ
た。
Example 2 The same procedure as in Example 1 was carried out with the fixing temperature of 130 ° C. and the value of B in the range of 0 to 0.13.

【0018】〈実施例3〉定着温度を140℃,Bの値
を0〜0.14 の範囲として、実施例1と同様に行っ
た。
Example 3 The same procedure as in Example 1 was carried out with the fixing temperature set at 140 ° C. and the value of B set in the range of 0 to 0.14.

【0019】〈実施例4〉定着温度を160℃,Bの値
を0〜0.16 の範囲として、実施例1と同様に行っ
た。
Example 4 The same procedure as in Example 1 was carried out with the fixing temperature set to 160 ° C. and the value of B set to the range of 0 to 0.16.

【0020】〈実施例5〉定着温度を170℃,Bの値
を0〜0.17 の範囲として、実施例1と同様に行っ
た。
Example 5 The same procedure as in Example 1 was carried out with the fixing temperature set at 170 ° C. and the B value set in the range of 0 to 0.17.

【0021】〈評価〉得られた各画像のオフセットの発
生状況及びOHP画像の発色性を以下の方法で評価し
た。
<Evaluation> The occurrence of offset in each of the obtained images and the color developability of the OHP image were evaluated by the following methods.

【0022】定着画像のオフセット発生状況の評価は、
定着ロールが1回転した後の記録担体上を目視観察し、
記録担体上のトナーの再付着の状況から評価した。
The evaluation of the offset occurrence status of the fixed image is as follows.
Visually observing on the record carrier after the fixing roll makes one rotation,
It was evaluated from the state of re-adhesion of the toner on the record carrier.

【0023】また、OHP画像の発色性は、下式に示す
投影彩度PV(Xerox社,S.J.Bloomberg の提案によ
る)を用いて評価した。PVの値が0.9 以上であれば
明るく発色性に優れた投影画像が得られる。
Further, the color developability of the OHP image was evaluated by using the projection saturation PV (proposed by Xerox, SJ Bloomberg) shown in the following formula. When the PV value is 0.9 or more, a bright projected image having excellent color development can be obtained.

【0024】[0024]

【数1】 [Equation 1]

【0025】ここで、L*T,a*T,b*Tは全透過率スペ
クトルにおけるL*,a*,b*,L*S,a*S,b*S は正
透過率スペクトルにおけるL*,a*,b*である。なお
各スペクトルにおけるL*,a*,b* は、各画像につい
て分光透過率スペクトルを自記分光光度計(日立製33
0型)により測定し、測定より得た各スペクトルに基づ
いてCIE1976(L*a*b*)色空間において変換し
た。
Here, L * T , a * T and b * T are L *, a *, b *, L * S , a * S and b * S in the total transmittance spectrum in the total transmittance spectrum. *, A *, b *. Note that L *, a *, and b * in each spectrum are the spectral transmittance spectra of each image, recorded by a self-recording spectrophotometer (Hitachi 33
Type 0) and converted in the CIE1976 (L * a * b *) color space based on each spectrum obtained from the measurement.

【0026】各実施例に対する評価結果を表1ないし表
5に示す。
The evaluation results for each example are shown in Tables 1 to 5.

【0027】[0027]

【表1】 [Table 1]

【0028】[0028]

【表2】 [Table 2]

【0029】[0029]

【表3】 [Table 3]

【0030】[0030]

【表4】 [Table 4]

【0031】[0031]

【表5】 [Table 5]

【0032】表1ないし表5の結果から明らかなよう
に、Bの値が0.08≦B<0.13の範囲を満足する場
合、オフセット発生がなく、かつOHP画像の発色性に
優れた良好な画像が得られた。
As is clear from the results of Tables 1 to 5, when the value of B satisfies the range of 0.08≤B <0.13, no offset is generated and the OHP image is excellent in color developability. A good image was obtained.

【0033】一方、Bの値が上記範囲を超え、0.13
を上回った場合、オフセットが発生し、良好な画像が得
られなかった。また、Bの値が0.08 を下回った場合
はオフセットの発生はみられないものの、定着後のOH
P画像のPVは低い値を示し、その投影画像は鮮やかさ
に欠けた暗い画像となり、良好な画像が得られなかっ
た。
On the other hand, when the value of B exceeds the above range, 0.13
When it was above the range, offset occurred and a good image could not be obtained. When the value of B is less than 0.08, no offset occurs, but the OH after fixing is fixed.
The PV of the P image showed a low value, and the projected image was a dark image lacking in vividness, and a good image could not be obtained.

【0034】[0034]

【発明の効果】本発明によれば、定着温度,記録担体上
のトナー量,定着ロールに塗布する離型剤量の3条件の
関係を最適化することにより、オフセット発生のない良
好な画像が得られる。また、定着後の画像は鮮やかな色
再現が可能であり、OHP画像についても発色性に優れ
た良好な画像を得ることができる。
According to the present invention, by optimizing the relationship among the three conditions of the fixing temperature, the amount of toner on the recording medium, and the amount of release agent applied to the fixing roll, a good image without offset generation can be obtained. can get. Further, a vivid color reproduction is possible for the image after fixing, and it is possible to obtain a good image having excellent color developability even for an OHP image.

【0035】また、本発明により離型剤は効率良く消費
され、定着ロールの膨潤が防止され、装置の長寿命化,
低コスト化が図れる。
Further, according to the present invention, the release agent is efficiently consumed, the swelling of the fixing roll is prevented, and the life of the apparatus is prolonged.
Cost reduction can be achieved.

【図面の簡単な説明】[Brief description of drawings]

【図1】本発明の一実施例に用いた定着装置の説明図。FIG. 1 is an explanatory diagram of a fixing device used in an embodiment of the present invention.

【図2】本発明の一実施例に用いた電子写真装置の説明
図。
FIG. 2 is an explanatory diagram of an electrophotographic apparatus used in an embodiment of the present invention.

【符号の説明】[Explanation of symbols]

1…定着ロール、2…加圧ロール、3…記録担体、4…
シリコーンゴム(定着ロール側)、5…アルミ管(定着
ロール側)、6…シリコーンゴム(加圧ロール側)、7
…アルミ管(加圧ロール側)、8…加熱装置(定着ロー
ル側)、9…加熱装置(加圧ロール側)、10…離型剤
塗布手段。
1 ... Fusing roll, 2 ... Pressure roll, 3 ... Record carrier, 4 ...
Silicone rubber (fixing roll side), 5 ... Aluminum tube (fixing roll side), 6 ... Silicone rubber (pressure roll side), 7
... Aluminum tube (pressure roll side), 8 ... Heating device (fixing roll side), 9 ... Heating device (pressure roll side), 10 ... Release agent applying means.

───────────────────────────────────────────────────── フロントページの続き (72)発明者 小野瀬 勝義 茨城県日立市東多賀町一丁目1番1号 株 式会社日立製作所情報映像メディア事業部 内 (72)発明者 矢木 恵次郎 茨城県日立市東多賀町一丁目1番1号 株 式会社日立製作所情報映像メディア事業部 内 (72)発明者 北岸 外茂治 茨城県日立市東多賀町一丁目1番1号 株 式会社日立製作所情報映像メディア事業部 内 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Katsuyoshi Onose 1-1-1 Higashitaga-cho, Hitachi-shi, Ibaraki Hitachi, Ltd. Information & Video Media Division (72) Inventor Eijiro Yagi Higashi-taga-cho, Ibaraki 1-1-1, Hitachi Ltd. Information & Video Media Division (72) Inventor Tomoharu Kitagishi 1-1-1, Higashitaga-cho, Hitachi City, Ibaraki Prefecture Hitachi Ltd. Information & Video Media Division

Claims (4)

【特許請求の範囲】[Claims] 【請求項1】黒または白またはイエロー,マゼンタ,シ
アンなどの着色トナーを有する現像剤で、電子写真方式
により紙,プラスチックフィルムなどの記録担体上にト
ナー像を形成し、定着ロール表面への離型剤塗布手段を
有する定着装置を用いて、前記担体上のトナー画像を定
着温度130〜170℃の範囲にて定着する電子写真画
像形成方法において、 前記定着ロールへの単位面積当たりの離型剤塗布重量と
記録担体上の単位面積当たりのトナー付着重量との比を
A、定着温度をT(℃)とし、 B=0.001T−Aとしたとき、0.08≦B<0.1
3 の関係を満足することを特徴とする画像定着方法。
1. A developer having a colored toner such as black or white or yellow, magenta, and cyan, which forms a toner image on a recording medium such as paper or a plastic film by an electrophotographic method, and separates the toner image from the surface of a fixing roll. An electrophotographic image forming method for fixing a toner image on a carrier at a fixing temperature in the range of 130 to 170 ° C. using a fixing device having a mold agent applying means, wherein a releasing agent per unit area to the fixing roll Assuming that the ratio of the coating weight to the toner adhesion weight per unit area on the record carrier is A and the fixing temperature is T (° C.), and B = 0.001T-A, 0.08 ≦ B <0.1.
An image fixing method characterized by satisfying the relationship of 3.
【請求項2】請求項1において、前記離型剤の常温にお
ける粘度が100〜10000csである電子写真画像形
成方法。
2. The electrophotographic image forming method according to claim 1, wherein the mold release agent has a viscosity at room temperature of 100 to 10,000 cs.
【請求項3】請求項1または2において、前記離型剤の
熱伝導率が3.2×10-4〜3.7×10-4cal/cm・sec・
℃である電子写真画像形成方法。
3. The release agent according to claim 1, wherein the release agent has a thermal conductivity of 3.2 × 10 −4 to 3.7 × 10 −4 cal / cm · sec.
The method of forming an electrophotographic image having a temperature of ℃
【請求項4】請求項1,2または3に記載の電子写真画
像形成方法を用いた電子写真装置。
4. An electrophotographic apparatus using the electrophotographic image forming method according to claim 1, 2, or 3.
JP16440193A 1993-07-02 1993-07-02 Electrophotographic image fixing method Pending JPH0720742A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16440193A JPH0720742A (en) 1993-07-02 1993-07-02 Electrophotographic image fixing method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16440193A JPH0720742A (en) 1993-07-02 1993-07-02 Electrophotographic image fixing method

Publications (1)

Publication Number Publication Date
JPH0720742A true JPH0720742A (en) 1995-01-24

Family

ID=15792435

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16440193A Pending JPH0720742A (en) 1993-07-02 1993-07-02 Electrophotographic image fixing method

Country Status (1)

Country Link
JP (1) JPH0720742A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6091830A (en) * 1996-07-19 2000-07-18 Nec Corporation Transmitter structure for limiting the effects of wind noise on a microphone
US9038497B2 (en) 2013-09-04 2015-05-26 Hyundai Motor Company Pedal apparatus for vehicle

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6091830A (en) * 1996-07-19 2000-07-18 Nec Corporation Transmitter structure for limiting the effects of wind noise on a microphone
US9038497B2 (en) 2013-09-04 2015-05-26 Hyundai Motor Company Pedal apparatus for vehicle

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