JPS6330859A - Dry toner - Google Patents
Dry tonerInfo
- Publication number
- JPS6330859A JPS6330859A JP61173562A JP17356286A JPS6330859A JP S6330859 A JPS6330859 A JP S6330859A JP 61173562 A JP61173562 A JP 61173562A JP 17356286 A JP17356286 A JP 17356286A JP S6330859 A JPS6330859 A JP S6330859A
- Authority
- JP
- Japan
- Prior art keywords
- toner
- substance
- dry toner
- fixing
- outermost 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
Links
- 239000000126 substance Substances 0.000 claims abstract description 10
- 239000000463 material Substances 0.000 claims description 15
- -1 Al2O3 Chemical class 0.000 abstract description 4
- 239000011248 coating agent Substances 0.000 abstract description 3
- 238000000576 coating method Methods 0.000 abstract description 3
- 239000000945 filler Substances 0.000 abstract description 3
- 229910052759 nickel Inorganic materials 0.000 abstract description 3
- 238000012546 transfer Methods 0.000 abstract description 3
- 229910052790 beryllium Inorganic materials 0.000 abstract description 2
- 239000003795 chemical substances by application Substances 0.000 abstract description 2
- 229910052804 chromium Inorganic materials 0.000 abstract description 2
- 229910052737 gold Inorganic materials 0.000 abstract description 2
- 229910044991 metal oxide Inorganic materials 0.000 abstract description 2
- 150000004706 metal oxides Chemical class 0.000 abstract description 2
- 229910052750 molybdenum Inorganic materials 0.000 abstract description 2
- 229910052697 platinum Inorganic materials 0.000 abstract description 2
- 229910052715 tantalum Inorganic materials 0.000 abstract description 2
- 229910052718 tin Inorganic materials 0.000 abstract description 2
- 229910052725 zinc Inorganic materials 0.000 abstract description 2
- 229910052782 aluminium Inorganic materials 0.000 abstract 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 abstract 1
- 229910052802 copper Inorganic materials 0.000 abstract 1
- 229910052593 corundum Inorganic materials 0.000 abstract 1
- 229910052742 iron Inorganic materials 0.000 abstract 1
- 239000002184 metal Substances 0.000 abstract 1
- 229910052751 metal Inorganic materials 0.000 abstract 1
- 229910052709 silver Inorganic materials 0.000 abstract 1
- 229910001845 yogo sapphire Inorganic materials 0.000 abstract 1
- 239000011230 binding agent Substances 0.000 description 9
- 239000011347 resin Substances 0.000 description 7
- 229920005989 resin Polymers 0.000 description 7
- 238000000034 method Methods 0.000 description 6
- 239000000839 emulsion Substances 0.000 description 4
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Substances [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 4
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 3
- 230000009477 glass transition Effects 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 239000006229 carbon black Substances 0.000 description 2
- 239000000155 melt Substances 0.000 description 2
- 239000000049 pigment Substances 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 229920002545 silicone oil Polymers 0.000 description 2
- JHPBZFOKBAGZBL-UHFFFAOYSA-N (3-hydroxy-2,2,4-trimethylpentyl) 2-methylprop-2-enoate Chemical compound CC(C)C(O)C(C)(C)COC(=O)C(C)=C JHPBZFOKBAGZBL-UHFFFAOYSA-N 0.000 description 1
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 241000406668 Loxodonta cyclotis Species 0.000 description 1
- CERQOIWHTDAKMF-UHFFFAOYSA-N Methacrylic acid Chemical compound CC(=C)C(O)=O CERQOIWHTDAKMF-UHFFFAOYSA-N 0.000 description 1
- OFOBLEOULBTSOW-UHFFFAOYSA-N Propanedioic acid Natural products OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 description 1
- 239000002174 Styrene-butadiene Substances 0.000 description 1
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 1
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 description 1
- 235000010724 Wisteria floribunda Nutrition 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 244000001591 balata Species 0.000 description 1
- 235000016302 balata Nutrition 0.000 description 1
- MTAZNLWOLGHBHU-UHFFFAOYSA-N butadiene-styrene rubber Chemical compound C=CC=C.C=CC1=CC=CC=C1 MTAZNLWOLGHBHU-UHFFFAOYSA-N 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000011231 conductive filler Substances 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000009775 high-speed stirring Methods 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000011976 maleic acid Substances 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 239000003094 microcapsule Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 108091008695 photoreceptors Proteins 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 1
- 229920002037 poly(vinyl butyral) polymer Polymers 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920005596 polymer binder Polymers 0.000 description 1
- 239000004926 polymethyl methacrylate Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000010298 pulverizing process Methods 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000001694 spray drying Methods 0.000 description 1
- 238000004544 sputter deposition Methods 0.000 description 1
- 239000011115 styrene butadiene Substances 0.000 description 1
- 229920003048 styrene butadiene rubber Polymers 0.000 description 1
- 229920005792 styrene-acrylic resin Polymers 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
- VZCYOOQTPOCHFL-UHFFFAOYSA-N trans-butenedioic acid Natural products OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 0.000 description 1
- 238000007740 vapor deposition Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-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
- G03G9/00—Developers
- G03G9/08—Developers with toner particles
- G03G9/097—Plasticisers; Charge controlling agents
- G03G9/09708—Inorganic compounds
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、電子写真法、静電記録法等において現像に用
いられる静電荷現像用トナー、更に詳しく言えば熱定着
用の乾式トナーに関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an electrostatic charge developing toner used for development in electrophotography, electrostatic recording, etc., and more specifically to a dry toner for heat fixing.
電子写真法では感光体上に形成された静電潜像を通常顔
料を含む樹脂粉で現像し、得られた可視画像を転写紙上
（こ転写して、熱、圧力及びその併用などｌこより定着
するが、この定着工程を高速かつ高効率１こ行なうこと
が近年要求され、これらの点から熱ロール定着法が多く
採用されている。In electrophotography, an electrostatic latent image formed on a photoreceptor is usually developed with resin powder containing pigment, and the resulting visible image is transferred onto transfer paper and fixed by heat, pressure, or a combination thereof. However, in recent years, there has been a demand for this fixing step to be carried out at high speed and with high efficiency, and from these points of view, the hot roll fixing method is often adopted.
熱ロール定着法において、低消費電力で高速定着を行な
うため（こはトナーの結着材料の軟化点を下げ、溶融粘
度を低下せしめることが、有効な手段であるが、通常ト
ナーの主結着材料として用いられているバインダーポリ
マー（結着樹脂）では、軟化点を下げるとトナー保管時
にケーキング１こよる流動性の低下が生じや丁く、また
溶融粘度を下げるとオフセット現象などにより、画１象
の汚れが発生しや丁くなる。In the hot roll fixing method, in order to perform high-speed fixing with low power consumption (lowering the softening point of the toner's binding material and lowering the melt viscosity is an effective means, usually the main binding material of the toner is For the binder polymer (binder resin) used as a material, lowering the softening point will cause a decrease in fluidity due to caking during toner storage, and lowering the melt viscosity will cause an offset phenomenon. Elephant stains occur and become dirty.
このため、熱ロールにシリコンオイルなどの離型剤を供
給する装置を設げ、オフセットを防止したり、また主バ
インダーポリマーのガラス転移点を高くしたり、又はシ
リカなどの無機の超微粉をトナー表面への外添剤として
用いて保管時のケーキングを防ぐ方法が従来提案されて
いる。For this reason, a device is installed to supply a release agent such as silicone oil to the hot roll to prevent offset, and the glass transition point of the main binder polymer is increased, or inorganic ultrafine powder such as silica is added to the toner. A method of preventing caking during storage by using it as an external additive to the surface has been proposed.
しかし、熱ロールにシリコンオイルを供給するには、供
給機構を必要とするため、装置のコストアップが必至で
あり、またオイル補給のメンテナンスも必要となる。However, supplying silicone oil to the heat roll requires a supply mechanism, which inevitably increases the cost of the device and requires maintenance for oil replenishment.
また主バインダーポリマーのガラス転移点を、高く設定
すると、軟化温度が高くなるために低温定着が困難とな
りや丁い。Furthermore, if the glass transition point of the main binder polymer is set high, the softening temperature will increase, making low-temperature fixing difficult.
従って、本発明の目的は高速で効率よく定着を行なうこ
とのできる乾式トナーを提供することｌこある。Therefore, an object of the present invention is to provide a dry toner that can be fixed efficiently at high speed.
さらに本発明の他の目的は、貯蔵時にケーキングを生じ
にくい乾式トナーを提供することにある。Still another object of the present invention is to provide a dry toner that is less likely to cause caking during storage.
本発明は、最外層の材料中に常温における熱伝導度が０
．１７１ｄ／ｍ・就・ｄｅｇ以上の物質を含有せしめた
多層構造の乾式トナーを提供したものである。In the present invention, the material of the outermost layer has a thermal conductivity of 0 at room temperature.
．． The present invention provides a dry toner having a multilayer structure containing a substance with a density of 171 d/m·deg or more.
高速、高効率に定着でき、かつケーキングを生じにくい
トナーを構成する方法として、従来よりマイクロカプセ
ル型を代表とする多層構造トナーが提案されている。こ
の場合、内部材料として熱溶融の容易な成分を用い、最
外層材料として、融点の高い、かつトナーとして、良好
な流動性および耐ケーキング特性をもつ材料を使用する
のが一般的である。通常、内部材料としては、ワックス
類またはガラス転移点（Ｔｇ ）の低い、または分子量
の低い樹脂などがバインダーとして使用され、最外層材
料としては、Ｔｇの高いまたは高分子量の、または架橋
構造を有するバインダーが使用されている。トナーとし
ての熱伝導性は、必ずしも高くなく、カーボンブラック
などの顔料成分の含有率にもよるが通常、熱伝導率はＩ
Ｑ−”ａｆ・式−１・ｄｅｇ−”程度にすぎず、熱ロー
ルからの熱エネルギーを効率的に利用しているとはいえ
ない。2. Description of the Related Art Multilayer toners, typically microcapsule type, have been proposed as a method for constructing toners that can be fixed at high speed and with high efficiency and are less likely to cause caking. In this case, it is common to use a component that is easily melted by heat as the inner material, a material with a high melting point as the outermost layer material, and a material with good fluidity and anti-caking properties as the toner. Usually, as the inner material, a wax or a resin with a low glass transition point (Tg) or a low molecular weight is used as a binder, and the outermost layer material is a material with a high Tg, a high molecular weight, or a crosslinked structure. Binder is used. The thermal conductivity of a toner is not necessarily high, and it depends on the content of pigment components such as carbon black, but usually the thermal conductivity is I
It is only about Q-"af・Formula-1・deg-", and it cannot be said that the thermal energy from the heat roll is efficiently utilized.
そこで本発明では熱定着の助剤として最外層のフィラー
またはコーテイング物質に０．１ｍｌ・気−１・ｄｅｇ
”以上の熱伝導率を示す物ｆＸを用いることによって、
熱ロール表面からのエネルギーを有効にトナーと転写紙
の界面に伝達せしめ、より低い定着エネルギーで所望の
定着度が得られるようにしたものである。Therefore, in the present invention, as a heat fixing aid, 0.1 ml of air-1 deg.
``By using a substance fX that exhibits a thermal conductivity of
Energy from the surface of the hot roll is effectively transmitted to the interface between the toner and the transfer paper, so that a desired degree of fixing can be obtained with lower fixing energy.
本発明の乾式トナーの最外層に用いられる高熱伝導性物
質としては、例えばＡｇ、 ｋＬ、Ａｕ、 Ｂｅ、 Ｃ
ｏ、Ｃｒ、 Ｃｏ、 Ｆｅ 、 Ｇｅ、 Ｍｇ％Ｍｏ、
Ｎｉ、 Ｐｔ、 Ｓｎ、 Ｔａ、 Ｚｎなどの金属の
はかＡ４０．、Ｂｅ０１Ｍｇ０などの金属酸化物などが
挙げられるが、 ０．１ ｍ−５ｅｅ−” ・ｄｅｇ−
’以上の物性質を有せばその他の物質も使用しつる。Examples of the highly thermally conductive material used in the outermost layer of the dry toner of the present invention include Ag, kL, Au, Be, and C.
o, Cr, Co, Fe, Ge, Mg%Mo,
Metallic materials such as Ni, Pt, Sn, Ta, and Zn A40. , metal oxides such as Be01Mg0, etc., 0.1 m-5ee-”・deg-
'Other substances can also be used if they have the physical properties above.
これらの物質は比較的少量から効果を示すが、通常トナ
ーの全量に対して１０−３重ｉチ〜７０重量％、好まし
くは１０−２重量％〜２０重量％を微粉末のフィラーと
して含有させるか、表面に蒸着、スパッタリングなどの
方法でコーティングしてもよい。Although these substances are effective in relatively small amounts, they are usually contained as fine powder fillers in an amount of 10-3 to 70% by weight, preferably 10-2 to 20% by weight, based on the total amount of the toner. Alternatively, the surface may be coated by a method such as vapor deposition or sputtering.
なお、本発明ではコーティングする場合には、最外層は
高熱伝導コーティングが接着しているバインダーの層ま
でをいうものとする。In addition, in the case of coating in the present invention, the outermost layer refers to the binder layer to which the highly thermally conductive coating is adhered.
本発明の乾式トナーにおける外層および内層用の結着樹
脂としては、従来の複層型トナーに用いられているもの
が使用できる。外層の結着樹脂は、一般的な方法である
水性ナスペンジョントシてコーティングする場合にはア
クリル酸エステル、メタクリル酸エステル、スチレン（
誘導体）、酢酸ビニル、マレイン酸エステルなどのモノ
マーに少量のアクリル酸、メタクリル酸などの酸モノマ
ーを乳化共重合したものが使用される。As the binder resin for the outer layer and inner layer in the dry toner of the present invention, those used in conventional multilayer toners can be used. The binder resin for the outer layer is acrylic ester, methacrylic ester, styrene (
derivatives), vinyl acetate, maleic acid ester, and a small amount of acid monomers such as acrylic acid and methacrylic acid are emulsion copolymerized.
また内層の結着樹脂としては、ポリエステル、エポキシ
樹脂、スチレン−アクリル樹脂、ブチラール樹脂、スチ
レン−ブタジェン樹脂などが用いられる。Further, as the binder resin for the inner layer, polyester, epoxy resin, styrene-acrylic resin, butyral resin, styrene-butadiene resin, etc. are used.
本発明の乾式トナーは、絶縁性二成分現１象剤用、ある
いは導電性−成分現像剤用として、さらには磁性体を内
層および／または外層に含有させた磁性トナーとしても
用いることができる。The dry toner of the present invention can be used as an insulating two-component developer or a conductive-component developer, and can also be used as a magnetic toner containing a magnetic material in the inner layer and/or outer layer.
内層成分の作成
スチレン−〇−ブチルメタクリレート（Ｍｎ＝８０００
、 ＭＷ＝５００００、Ｔｇ＝４０℃）９０重量部カ
ーボンブラック（キャボットＢＰＬ）１０重量部から通
常の混線粉砕法によって、平均粒径１０μｍの内層トナ
ーＡを得た。Creation of inner layer components Styrene-〇-butyl methacrylate (Mn=8000
An inner layer toner A having an average particle size of 10 μm was obtained from 10 parts by weight of carbon black (Cabot BPL) by a conventional cross-wire pulverization method.
導電性フィラー分散エマルジョンの作成スチレン−メタ
クリル酸メチル−メタクリルＲ共重体（Ｔｇ＝７０°Ｃ
）エマルジョン（固型分３０％）４０重量部
ニッケルバラタ−−（平均粒径０．２μｍ、熱伝導度０
．２ｍｌｌ５ｅｅ −ｄｅｇ ）
６０重量部を高速かくはんして混合し、エマルジョ
ン凝集分を濾過１こより除去して外層用材料Ｂを得た。Preparation of conductive filler dispersed emulsion Styrene-methyl methacrylate-methacrylic R copolymer (Tg=70°C
) Emulsion (solid content 30%) 40 parts by weight Nickel balata (average particle size 0.2 μm, thermal conductivity 0)
．． 2ml5ee-deg)
60 parts by weight were mixed by high-speed stirring, and the emulsion agglomerates were removed through filtration to obtain outer layer material B.
同様に酸化チタン（平均粒径０．０３μｍ、熱伝導度０
．０３ ＣｎＬ ・５ｅｅ−１・ｄｅｇ−１）をニッケ
ルパウダーに代えたものを作成して外層材Ｃを得た。Similarly, titanium oxide (average particle size 0.03 μm, thermal conductivity 0)
．． An outer layer material C was obtained by replacing 03 CnL .5ee-1.deg-1) with nickel powder.
内層用トナーＡ １００重量部に対して、外層材Ｂまた
はＣ４０重量部を水で１０倍に希釈したものを混合し、
スプレードライヤーで噴霧乾燥し、最終トナーＤおよび
Ｅを得た。Mix 100 parts by weight of inner layer toner A with 40 parts by weight of outer layer material B or C diluted 10 times with water,
Spray drying was performed using a spray dryer to obtain final toners D and E.
これらをポリメチルメタクリレートをコートした１００
μ鉄粉キヤリヤと混合し、富士ゼロックス３５００改遺
機で定着テストを行なった。トナーＤはトナーＥに比較
し、定着温度が低く、またトナーＥは、フィラーを含ま
ない場合とほぼ等しい定着温度を示した。５０℃、１時
間放置下でケーキングは、両者ともほとんどみられなか
った。100 coated with polymethyl methacrylate
It was mixed with μ iron powder carrier and a fixation test was conducted on a modified Fuji Xerox 3500 machine. Toner D had a lower fixing temperature than Toner E, and Toner E exhibited a fixing temperature almost equal to that without filler. When left at 50° C. for 1 hour, almost no caking was observed in both cases.
本発明は最外層の熱伝導度の高い多層構造型乾式トナー
を提供したものであり、熱を効率よく利用できるため高
速で定着を行うことができる。The present invention provides a multilayer dry toner in which the outermost layer has high thermal conductivity, and since heat can be used efficiently, fixing can be performed at high speed.
Claims (1)
／ｃｍ・ｓｅｃ・ｄｅｇ以上の物質を含有せしめたこと
を特徴とする多層構造を有する熱定着用乾式トナー。Thermal conductivity at room temperature in the outermost layer material is 0.1 cal
1. A dry toner for heat fixing having a multilayer structure, characterized in that it contains a substance of /cm・sec・deg or more.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61173562A JP2725001B2 (en) | 1986-07-25 | 1986-07-25 | Dry toner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61173562A JP2725001B2 (en) | 1986-07-25 | 1986-07-25 | Dry toner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6330859A true JPS6330859A (en) | 1988-02-09 |
| JP2725001B2 JP2725001B2 (en) | 1998-03-09 |
Family
ID=15962853
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61173562A Expired - Lifetime JP2725001B2 (en) | 1986-07-25 | 1986-07-25 | Dry toner |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2725001B2 (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55166653A (en) * | 1979-06-15 | 1980-12-25 | Canon Inc | Pressure-fixable capsule toner |
| JPS58211165A (en) * | 1982-06-01 | 1983-12-08 | Canon Inc | Microcapsule toner for electrophotography |
| JPS603650A (en) * | 1983-06-22 | 1985-01-10 | Fuji Xerox Co Ltd | Magnetic toner composition |
| JPS604948A (en) * | 1983-06-22 | 1985-01-11 | Minolta Camera Co Ltd | Electrostatic latent image developing toner |
| JPS60198558A (en) * | 1984-03-21 | 1985-10-08 | Fuji Photo Film Co Ltd | Production of capsule toner |
-
1986
- 1986-07-25 JP JP61173562A patent/JP2725001B2/en not_active Expired - Lifetime
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55166653A (en) * | 1979-06-15 | 1980-12-25 | Canon Inc | Pressure-fixable capsule toner |
| JPS58211165A (en) * | 1982-06-01 | 1983-12-08 | Canon Inc | Microcapsule toner for electrophotography |
| JPS603650A (en) * | 1983-06-22 | 1985-01-10 | Fuji Xerox Co Ltd | Magnetic toner composition |
| JPS604948A (en) * | 1983-06-22 | 1985-01-11 | Minolta Camera Co Ltd | Electrostatic latent image developing toner |
| JPS60198558A (en) * | 1984-03-21 | 1985-10-08 | Fuji Photo Film Co Ltd | Production of capsule toner |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2725001B2 (en) | 1998-03-09 |
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