JPS60238847A - Electrostatic image developing toner and its preparation - Google Patents
Electrostatic image developing toner and its preparationInfo
- Publication number
- JPS60238847A JPS60238847A JP59094810A JP9481084A JPS60238847A JP S60238847 A JPS60238847 A JP S60238847A JP 59094810 A JP59094810 A JP 59094810A JP 9481084 A JP9481084 A JP 9481084A JP S60238847 A JPS60238847 A JP S60238847A
- Authority
- JP
- Japan
- Prior art keywords
- toner
- electrostatic image
- weight
- image developing
- titania
- 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
Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G9/00—Developers
- G03G9/08—Developers with toner particles
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/60—Particles characterised by their size
- C01P2004/62—Submicrometer sized, i.e. from 0.1-1 micrometer
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Dry Development In Electrophotography (AREA)
- Developing Agents For Electrophotography (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は電子写真法、静電印刷法、静電記録法などにお
いて形成される静電像を現像するトナーに関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a toner for developing electrostatic images formed in electrophotography, electrostatic printing, electrostatic recording, and the like.
静電像の現像工程は帯電した微粒子が静電引力で吸引さ
れ、静電像支持体表面に付着し、静電潜像が可視化され
るという工程である。このような現像工程を！Ｌ行する
具体的な乾式現像方法としてはカスケード法、毛ブラシ
法、磁気ブラシ法、インプレフシタン法、パウダークラ
ウド法などがあげられるが、どの現像方法においてもト
ナーは流動性の高いものであることが必要である。トナ
ーの流動性の低いものでは一トナーによる現像がスムー
ズに行えず得られた画像は品位の低いものとなってしま
う。The electrostatic image development process is a process in which charged fine particles are attracted by electrostatic attraction and adhere to the surface of an electrostatic image support, so that the electrostatic latent image is visualized. A developing process like this! Specific dry development methods for L-row include the cascade method, bristle brush method, magnetic brush method, imprefucitane method, and powder cloud method, but in all development methods, the toner is highly fluid. It is necessary. If the toner has low fluidity, development with one toner cannot be performed smoothly and the resulting image will be of low quality.
従来トナーに流動性を付与する手段としては特開昭４８
−４７３４５号に見られる様な疎水化されたシリカ微粒
子を添加する方法が知られている。この疎水性シリカ微
粒子を添加することによりトナーの流動性を向上させる
ことができ、その結果、品位の高い良好な画像が得られ
る。ところがこの）・ナーを用いて連ａｌ！！写を行つ
たところ画像にブラックスポットが生じた。この現象は
次のような過程で生ずるものである。Conventionally, as a means of imparting fluidity to toner, Japanese Patent Application Laid-Open No. 48
A method of adding hydrophobized silica fine particles as shown in No. 47345 is known. By adding these hydrophobic silica fine particles, the fluidity of the toner can be improved, and as a result, a good image with high quality can be obtained. However, using this )・ner, it is repeated! ! When I took a photo, black spots appeared on the image. This phenomenon occurs through the following process.
電子写真法等では静電像支持体上に形成したトナー像を
紙などの別の媒体上に転′グし、転写工程後、静電像支
持体上に残ったトナーを除去するいわゆるクリー二ング
工程が必要である。In electrophotography, a toner image formed on an electrostatic image support is transferred onto another medium such as paper, and after the transfer process, the toner remaining on the electrostatic image support is removed using a so-called cleaning method. A processing step is required.
クリーニング工程では一般にクリーニング効率が良く、
周囲への汚染性の小さいブレードクリーニングが用いら
れるが、前述の疎水性シリカ微粒子を添加したトナーを
用いた場合、クリーニングブレードを通過した後の＃電
像支持体上に魚状の残留物が発生し、その部分の光導電
性が低下するために画像【こブラックスポットが発生す
る。The cleaning process generally has good cleaning efficiency;
Blade cleaning is used because it causes less contamination to the surrounding area, but when using toner containing the aforementioned hydrophobic silica particles, a fish-like residue is generated on the #electronic image support after passing through the cleaning blade. However, because the photoconductivity of that area decreases, black spots occur in the image.
本発明の第一の目的はこの様なブラックスポットを生じ
ない流動性の良好なトナーを提供することにある。The first object of the present invention is to provide a toner with good fluidity that does not cause such black spots.
また電子写真法等で用いられる静電像支持体としては一
般に酸化亜鉛系、セレン系、硫化カドミウム系、有１ｆ
ｌ感光体系等が知られているが感度、耐刷性、無公害性
などからセレン系を用いることが好ましい。ところがセ
レン系は高温環境下においていわゆる結晶化を起こし画
像にいわゆる白ヌケを生ずることがある。本発明者らの
研究によるとこの様な結晶化はある種の金属イオンによ
って促進されあるいは抑制される。In addition, electrostatic image supports used in electrophotography are generally zinc oxide-based, selenium-based, cadmium sulfide-based,
1 photosensitive systems are known, but it is preferable to use selenium based systems from the viewpoint of sensitivity, printing durability, non-polluting properties, etc. However, selenium-based materials may undergo so-called crystallization in a high-temperature environment, resulting in so-called white spots on images. According to research conducted by the present inventors, such crystallization is promoted or suppressed by certain metal ions.
本発明の第二の目的はこの様なセレン系静電像支持体の
結晶化を抑制するシナ−を提供することにある。A second object of the present invention is to provide a thinner that suppresses crystallization of such a selenium-based electrostatic image support.
さらに電子写真法等の現像・転写工程においては良好な
現像性、転写性を得るためにトナーが摩擦帯電により十
分な電荷量を持つことが必要である。トナーが十分な電
荷量を持たない場合、特に高温＾湿環境下の様な条件下
で現像性低下による画像濃度低下、あるいは転写性低下
によるいわゆる転写ヌケと呼ばれる好ましくない現象を
生ずる。Furthermore, in developing and transferring processes such as electrophotography, it is necessary for the toner to have a sufficient amount of charge due to triboelectric charging in order to obtain good developability and transferability. If the toner does not have a sufficient amount of charge, an undesirable phenomenon known as a drop in image density due to a decrease in developability or a so-called transfer drop due to a decrease in transferability occurs, particularly under conditions such as a high temperature/humid environment.
本発明の第三の目的はｉｌ’ｌｉ温高湿下においても良
好な現像性、転写性を示すトナーを提供することにある
。A third object of the present invention is to provide a toner that exhibits good developability and transferability even under extreme temperature and high humidity conditions.
上記第一、第二、第三の目的は疎水化されたアルミナ及
び又はチタニア及びシリカとを添加したトナーによって
達成される。The first, second, and third objects described above are achieved by a toner to which hydrophobized alumina and/or titania and silica are added.
本発明に用いられるトナーはバインダー樹脂、着色剤及
びその他の特性改良剤から成る。また磁性トナーとして
用いる場合にあっては、着色剤とともに又は着色剤のか
わりに磁性体を含有する。The toner used in the present invention consists of a binder resin, colorants and other property modifiers. Further, when used as a magnetic toner, a magnetic substance is contained together with or in place of a colorant.
バインダー樹脂としてはたとえばロノン樹脂、ビニル樹
脂、アクリル樹脂、オレフィン０（脂、ポリアミド樹脂
、ポリエステル樹脂、ケトン樹脂、エポキシ樹脂、７ヱ
７−ル樹脂等の公知の樹脂又はそれらの混合物が用いら
れる。As the binder resin, for example, known resins such as ronone resin, vinyl resin, acrylic resin, olefin resin, polyamide resin, polyester resin, ketone resin, epoxy resin, 7-el resin, or mixtures thereof are used.
本発明に用いられる着色剤としてはカーボンブラック、
ニグロシン染料、アニリンブルー、ウルトラマリンブル
ー、クロムイエロー、キノリンイエロー、ローズベンガ
ル、テュポンオイルレッド、７タロシアニンブルー、ラ
ンプブラック及びそれらの混合物、その他をあげること
ができる。この様な着色剤は通常バイングー樹脂１００
重量部に対して１〜２０−重量部程度の割合が好ましい
。The coloring agent used in the present invention is carbon black,
Mention may be made of nigrosine dyes, aniline blue, ultramarine blue, chrome yellow, quinoline yellow, rose bengal, Typhon oil red, 7-talocyanine blue, lamp black and mixtures thereof, among others. Such coloring agents are usually Baingu Resin 100.
The ratio is preferably about 1 to 20 parts by weight.
本発明に用いられる磁性体としては７エフイト、マグネ
タイＦなどを初めとする鉄、コバルト、ニッケルなどの
強磁性を示す元素を含む合金あるいは化合物または強磁
性元素を含まないが適当に熱処理することによって強磁
性を示すようになる合金たとえばマンガン−銅−アルミ
ニウムあるいはマンガン−銅−錫などのホイスラー合金
と呼ばれる種類の合金などを挙げることができる。The magnetic materials used in the present invention include alloys or compounds containing ferromagnetic elements such as iron, cobalt, and nickel, such as 7F, Magnetai F, etc., or alloys or compounds that do not contain ferromagnetic elements, but can be treated with appropriate heat treatment. Examples of alloys that exhibit ferromagnetism include alloys called Heusler alloys such as manganese-copper-aluminum or manganese-copper-tin.
磁性体粒子の含有量はトナー１００重量部当たり２０〜
７０重量部、好ましくは４０〜７０重量部とするのが望
ましい。The content of magnetic particles is 20 to 100 parts by weight of toner.
The amount is desirably 70 parts by weight, preferably 40 to 70 parts by weight.
本発明の疎水化されたアルミナ及びチタニアは好ましく
は疎水化率３０％以上、さらに好ましくは５０％以上の
ものである。本発明において疎水化とはアルミナ、チタ
ニア等の無機酸化物に結合している水酸基をつぶすこと
であり疎水化処理は無機酸化物にジアルキルジハロゲン
化シラン、トリアルキルハロゲン
化シラン、ヘキサアルキルノシラザンなどを高温下で反
応させることにより行なわれる。The hydrophobized alumina and titania of the present invention preferably have a hydrophobization rate of 30% or more, more preferably 50% or more. In the present invention, hydrophobization refers to crushing hydroxyl groups bonded to inorganic oxides such as alumina and titania, and hydrophobization treatment is performed using dialkyldihalogenated silanes, trialkylhalogenated silanes, hexaalkylnosilazanes, etc. to inorganic oxides. It is carried out by reacting at high temperature.
疎水化率が３０％以下のものではその粒径が小さいこと
とあいまって空気中の水分を吸着しやすく環境の変化に
ともない流動性が変化するために画質が大きく変動する
という欠点を有する。さらに流動化剤としての効果がら
その粒径は好ましくは１−以下さらに好ましくは０．５
−以下であることが必要である。If the hydrophobization rate is less than 30%, the particle size is small, and together with this, it tends to adsorb moisture in the air, and the fluidity changes with changes in the environment, resulting in large fluctuations in image quality. Further, in view of its effect as a fluidizing agent, the particle size is preferably 1- or less, more preferably 0.5-
- Must be less than or equal to:
疎水化されたアルミナ及び又はチタニア粒子はトナーと
混合された状態であるいはトナーを被覆したような状態
で存在しているがその添加量はトナー全体に対して１０
重量％以下好ましくは５重量％以下である。The hydrophobized alumina and/or titania particles are present in a mixed state with the toner or in a state in which the toner is coated, but the amount added is 10% to the entire toner.
It is less than 5% by weight, preferably less than 5% by weight.
本発明に用いられるシリカは一般に知られてぃるコロイ
ド状シリカ粒子であり、好ましくは疎水化処理されたも
のが良い。コロイド状シリカ粒子としては「＾ＥＲＯＳ
ＩＬ ２００Ｊ ｒ＾ＥＲＯ５ＩＬ ３００Ｊ ｒ＾Ｅ
ＲＯＳＩＬ１３０Ｊ （日本アエロジル社製）などが、
また疎水化されたシリカ粒子としては 「＾ＥＲＯ３Ｉ
Ｌ Ｒ−９２７Ｊ「＾ＥＲＯＳＩＬ Ｒ−８１２Ｊ 「
＾ＥＲＯＳＩＬ Ｒ−８０５Ｊなどが知られている。The silica used in the present invention is a generally known colloidal silica particle, preferably one that has been hydrophobized. As colloidal silica particles, ``^EROS''
IL 200J r^ERO5IL 300J r^E
ROSIL130J (manufactured by Nippon Aerosil Co., Ltd.) etc.
In addition, as a hydrophobized silica particle, “^ERO3I
L R-927J ``＾EROSIL R-812J ``
^EROSIL R-805J etc. are known.
シリカ粒子は十分な電荷量をトナーが持つこと及びブラ
ックスポットの発生がないことを満たすためにその添加
量はトナー全体に対して０．０１〜５重量％、好ましく
は０．０５〜２重量％である。The amount of silica particles added is 0.01 to 5% by weight, preferably 0.05 to 2% by weight based on the entire toner, in order to ensure that the toner has a sufficient amount of charge and that black spots do not occur. It is.
以下、実施例により詳細に説明するが、これにより本発
明の範囲が限定されるものではない。Examples will be described in detail below, but the scope of the present invention is not limited thereby.
合成例１
テレフタル酸２９９ｇと、ポリオキシプロピレン（２゜
２）−２，２−ビス（４−ヒドロキシフェニル）プロパ
ン２１１ｇと、ペンタエリスリトール８２ｇとを、温度
計、ステンレススチール製攪拌器、ガラス製窒素ガス導
入管及び丸下式コンデンサを備えた丸底フラスコ内に入
れ、このフラスコをマントルヒーターにセットし、窒素
〃ス導入管より窒素ガスを導入してフラスコ内を不活性
雰囲気に保った状態で昇温せしめた。次いでジブチルス
ズオキシド０．０５．を加え、軟化点におい、て反応を
追跡しながら温度２００℃°で反応せしめ、以ってクロ
ロホルム不溶分１７重量％のポリエステル樹脂を製造し
た。これを「ポリエステル樹脂Ａ」とする。このポリエ
ステル樹脂Ａの環球軟化点（ＪＩＳＫ １３５１−１９
６０の方法による。以下において同じ。）は１３１℃で
あった。Synthesis Example 1 299 g of terephthalic acid, 211 g of polyoxypropylene (2°2)-2,2-bis(4-hydroxyphenyl)propane, and 82 g of pentaerythritol were mixed into a thermometer, a stainless steel stirrer, and a glass nitrogen Place it in a round-bottomed flask equipped with a gas inlet tube and a round-bottom condenser, set this flask on a mantle heater, and introduce nitrogen gas from the nitrogen inlet tube to maintain an inert atmosphere inside the flask. The temperature was raised. Then dibutyltin oxide 0.05. was added and the reaction was carried out at a temperature of 200° C. while monitoring the reaction at the softening point, thereby producing a polyester resin with a chloroform insoluble content of 17% by weight. This will be referred to as "polyester resin A." Ring and ball softening point of this polyester resin A (JISK 1351-19
According to 60 methods. The same applies below. ) was 131°C.
一実施例１−
合成例１で合成したポリエステル樹脂Ａ １．００重量
部、カーボンブラック「モーガルＬＪ（ｌヤボット社製
）１０重量部、低分子量ポリプロピレン「ビスコール６
６０ＰＪ（工作化成社製）３重量部を溶融混線、粉砕分
級して平均粒径１０ｐ１のトナーを得た。Example 1 - 1.00 parts by weight of polyester resin A synthesized in Synthesis Example 1, 10 parts by weight of carbon black "Mogull LJ (manufactured by Yabot), low molecular weight polypropylene "Viscol 6"
3 parts by weight of 60PJ (manufactured by Kokaku Kasei Co., Ltd.) was melt mixed, crushed and classified to obtain a toner having an average particle size of 10p1.
処理を行った酸化アルミニウム（粒径０，０２ｎ、疎水
化率７０％）をトナー１００重量部に対して１重量部を
添加混合した。これをトナーＢとする。1 part by weight of treated aluminum oxide (particle size: 0.02 nm, hydrophobicity: 70%) was added to 100 parts by weight of the toner. This is called toner B.
一実施例２−
トナーＢに疎水性シリカｒＡＥＲＯｓＩＬ Ｈ−８１２
Ｊ （日本アエロジル社製）をトナー １００重量部に
対して０．５重量部を添加混合した。これをトナーＣと
する。Example 2 - Hydrophobic silica rAEROsIL H-812 in toner B
J (manufactured by Nippon Aerosil Co., Ltd.) was added in an amount of 0.5 parts by weight to 100 parts by weight of the toner. This is called toner C.
一実施例３−
トナーＢにシリカ［＾ＥＲＯＳＩＬ ２００Ｊ （日本
アエロジル社製）をトナー １００重量部に対して０．
５重量部を添加混合した。これをトナーＤとする。Example 3 - Toner B contains silica [^EROSIL 200J (manufactured by Nippon Aerosil Co., Ltd.)] at 0.00% per 100 parts by weight of toner.
5 parts by weight were added and mixed. This is referred to as toner D.
一実施例４−
疎水化処理した酸化アルミニウムのかわりにジメチルジ
クロルシランで疎水化処理した酸化チタン（粒径０．０
１＋＋、疎水化率８０％）を用いた他は実施例１と同様
にしてトナーＥを作成した。Example 4 - Titanium oxide (particle size: 0.0
Toner E was prepared in the same manner as in Example 1, except that 1++ (hydrophobicity: 80%) was used.
一実施例５−
トナーＢのかわりにトナーＥを用いた他は実施例２と同
様にしてトナーＦを作成した。Example 5 - Toner F was prepared in the same manner as Example 2 except that Toner E was used instead of Toner B.
−実施例６−
トナーＢのかわりにトナーＥを用いた他は実施例３と同
様にしてトナーＧを作成した。-Example 6- Toner G was prepared in the same manner as in Example 3 except that Toner E was used instead of Toner B.
一実施例７−
疎水化処理した酸化アルミニウムのがわりにジメチルジ
クロルシランで疎水化処理した酸化マグネシウムを用い
た他は実施例１と同様にしてトナー Ｉ−１を作成した
。Example 7 Toner I-1 was prepared in the same manner as in Example 1 except that magnesium oxide hydrophobized with dimethyldichlorosilane was used instead of hydrophobized aluminum oxide.
一実施例８−
トナーＢのかわりにトナーＨを用いた他は実施例２と同
様にしてトナーＪを作成した。Example 8 Toner J was prepared in the same manner as in Example 2 except that Toner H was used instead of Toner B.
一実施例９−
トナーＡに［＾ＥＲＯ３ＩＬ Ｒ−８１２Ｊ （日本ア
エロジル社製）をトナー１００重量部に対して１重量部
を添加混合した。これをトナーにとする。Example 9 - ERO3IL R-812J (manufactured by Nippon Aerosil Co., Ltd.) was added to toner A in an amount of 1 part by weight per 100 parts by weight of the toner. Use this as toner.
以上のトナーを用いて画質の安定性、ブラックスポット
及び結晶化による白ヌケの発生をテストした。°テスト
は電子写真複写機Ｕ−１３ｉｘ １６００（小西六写真
工業社製）を用いて行なった。以下にテスト結果を示す
。Using the above toner, the stability of image quality and the occurrence of black spots and white spots due to crystallization were tested. The test was conducted using an electrophotographic copying machine U-13ix 1600 (manufactured by Konishiroku Photo Industry Co., Ltd.). The test results are shown below.
＊１ 原稿濃度１．３のものを複写し、反射濃度計で測
定＊ ２１ ＊ ３ ０は４万枚の実写テストにおいて
発生しなかったもの
本発明のトナーＣ，Ｄ、Ｆ、Ｇはいずれも良好な特性を
示した。*1 Copied an original with a density of 1.3 and measured it with a reflection densitometer * 21 * 3 0 did not occur in a test of 40,000 actual copies Toners C, D, F, and G of the present invention were all It showed good characteristics.
代理人 弁理士 野 １）義 親Agent Patent Attorney No 1) Parent-in-law
Claims (1)
酸化物、及びシリカとを含有することを特徴とする静電
像現像用トナー。(1) A toner for electrostatic image development characterized by containing a hydrophobized aluminum oxide and/or titanium oxide, and silica.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59094810A JPS60238847A (en) | 1984-05-11 | 1984-05-11 | Electrostatic image developing toner and its preparation |
| US06/733,130 US4652509A (en) | 1984-05-11 | 1985-03-10 | Toner for developing electrostatic latent image |
| DE3516937A DE3516937C2 (en) | 1984-05-11 | 1985-05-10 | Toner for developing a latent electrostatic image |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59094810A JPS60238847A (en) | 1984-05-11 | 1984-05-11 | Electrostatic image developing toner and its preparation |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60238847A true JPS60238847A (en) | 1985-11-27 |
| JPH0122616B2 JPH0122616B2 (en) | 1989-04-27 |
Family
ID=14120408
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP59094810A Granted JPS60238847A (en) | 1984-05-11 | 1984-05-11 | Electrostatic image developing toner and its preparation |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60238847A (en) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0215288A (en) * | 1988-07-04 | 1990-01-18 | Matsushita Electric Ind Co Ltd | Nonmagnetic single-component developing device |
| JPH04506420A (en) * | 1989-06-28 | 1992-11-05 | アグファ ゲヴェルト ナームロゼ ベンノートチャップ | Dry electrostatic recording toner composition |
| US5429902A (en) * | 1992-11-20 | 1995-07-04 | Fuji Xerox Co., Ltd. | Electrophotographic toner composition and image formation method using the same |
| EP0713153A2 (en) | 1994-11-08 | 1996-05-22 | Canon Kabushiki Kaisha | Toner for developing electrostatic images, two component type developer, developing method, image forming method, heat fixing method, and process for producing toner |
| US5698357A (en) * | 1995-08-22 | 1997-12-16 | Fuji Xerox Co., Ltd. | Toner and developer for developing electrostatic latent image, and image forming process using the same |
| US5821023A (en) * | 1996-05-27 | 1998-10-13 | Fuji Xerox Co., Ltd. | Developer of electrostatic latent image, carrier therefor, method for forming image and image forming apparatus thereby |
| US5863684A (en) * | 1996-06-07 | 1999-01-26 | Fuji Xerox Co., Ltd. | Developer, image forming method, and multicolor image forming method |
| US5891600A (en) * | 1996-10-14 | 1999-04-06 | Fuji Xerox Co., Ltd. | Mono-component developer, method of forming image and method of forming multi-color image |
| US5965312A (en) * | 1996-05-16 | 1999-10-12 | Fuji Xerox Co., Ltd. | One-component developer |
| US6982139B2 (en) | 2002-05-28 | 2006-01-03 | Fuji Xerox Co., Ltd | Electrophotographic color toner, and electrophotographic color developer, toner cartridge, image forming device and image forming method using the same |
| US8029961B2 (en) | 2007-12-28 | 2011-10-04 | Ricoh Company, Ltd. | Toner for developing latent electrostatic image, method for producing the same and apparatus for producing the same, and developer, toner container, process cartridge, image forming method and image forming apparatus |
| US8034521B2 (en) | 2007-12-28 | 2011-10-11 | Ricoh Company, Ltd. | Toner for developing electrostatic charge image, image forming method and image forming apparatus |
-
1984
- 1984-05-11 JP JP59094810A patent/JPS60238847A/en active Granted
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0215288A (en) * | 1988-07-04 | 1990-01-18 | Matsushita Electric Ind Co Ltd | Nonmagnetic single-component developing device |
| JPH04506420A (en) * | 1989-06-28 | 1992-11-05 | アグファ ゲヴェルト ナームロゼ ベンノートチャップ | Dry electrostatic recording toner composition |
| US5429902A (en) * | 1992-11-20 | 1995-07-04 | Fuji Xerox Co., Ltd. | Electrophotographic toner composition and image formation method using the same |
| EP0713153A2 (en) | 1994-11-08 | 1996-05-22 | Canon Kabushiki Kaisha | Toner for developing electrostatic images, two component type developer, developing method, image forming method, heat fixing method, and process for producing toner |
| US5707770A (en) * | 1994-11-08 | 1998-01-13 | Canon Kabushiki Kaisha | Toner for developing electrostatic images, two component type developer, developing method, image forming method, heat fixing method, and process for producing toner |
| US5824442A (en) * | 1994-11-08 | 1998-10-20 | Canon Kabushiki Kaisha | Developing method, image forming method, and heat fixing method, with toner |
| US5698357A (en) * | 1995-08-22 | 1997-12-16 | Fuji Xerox Co., Ltd. | Toner and developer for developing electrostatic latent image, and image forming process using the same |
| US5965312A (en) * | 1996-05-16 | 1999-10-12 | Fuji Xerox Co., Ltd. | One-component developer |
| US5821023A (en) * | 1996-05-27 | 1998-10-13 | Fuji Xerox Co., Ltd. | Developer of electrostatic latent image, carrier therefor, method for forming image and image forming apparatus thereby |
| US5863684A (en) * | 1996-06-07 | 1999-01-26 | Fuji Xerox Co., Ltd. | Developer, image forming method, and multicolor image forming method |
| US5891600A (en) * | 1996-10-14 | 1999-04-06 | Fuji Xerox Co., Ltd. | Mono-component developer, method of forming image and method of forming multi-color image |
| US6982139B2 (en) | 2002-05-28 | 2006-01-03 | Fuji Xerox Co., Ltd | Electrophotographic color toner, and electrophotographic color developer, toner cartridge, image forming device and image forming method using the same |
| US8029961B2 (en) | 2007-12-28 | 2011-10-04 | Ricoh Company, Ltd. | Toner for developing latent electrostatic image, method for producing the same and apparatus for producing the same, and developer, toner container, process cartridge, image forming method and image forming apparatus |
| US8034521B2 (en) | 2007-12-28 | 2011-10-11 | Ricoh Company, Ltd. | Toner for developing electrostatic charge image, image forming method and image forming apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0122616B2 (en) | 1989-04-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP2684033B2 (en) | Toner for developing electrostatic image and image forming method | |
| US4737432A (en) | Positively chargeable toner and developer for developing electrostatic images contains di-organo tin borate charge controller | |
| KR100564850B1 (en) | Toner | |
| US4652509A (en) | Toner for developing electrostatic latent image | |
| JPS60238847A (en) | Electrostatic image developing toner and its preparation | |
| JP4035249B2 (en) | Method for producing toner for developing electrostatic image | |
| JP2012063602A (en) | Positively chargeable dry toner for electrophotography | |
| JPH11258847A (en) | Electrophotographic toner | |
| JP2851895B2 (en) | Toner for developing electrostatic images | |
| JP2005202132A (en) | Electrostatic latent image developing toner, developer for electrostatic latent image development and image forming method using the same | |
| JPS60238849A (en) | Electrostatic image developing toner and its preparation | |
| JP2007017842A (en) | Image forming apparatus and positive charge type two-component developer used in same | |
| JP2006323367A (en) | Electrophotographic developer, manufacturing method, apparatus and process cartridge | |
| JP2001255692A (en) | Developer, and method of manufacturing the same | |
| JP2011043570A (en) | Toner and developer | |
| JP2003241419A (en) | Image forming apparatus | |
| JPS62209539A (en) | Electrostatic image developing toner | |
| JP4068806B2 (en) | Toner for electrostatic latent image developer, electrostatic latent image developer, and image forming method using the electrostatic latent image developer | |
| JPS60238848A (en) | Electrostatic image developing toner and its preparation | |
| JP2007058035A (en) | Electrophotographic toner | |
| JPS60243665A (en) | Toner for electrostatic image development | |
| JP2000172003A (en) | Developer | |
| JP4012060B2 (en) | Magnetic toner | |
| JP3077708B2 (en) | Carrier for developing electrostatic images | |
| JP2003098731A (en) | Magnetic toner and image forming device using the same |