JPS63250658A - One component toner - Google Patents

One component toner

Info

Publication number
JPS63250658A
JPS63250658A JP62085140A JP8514087A JPS63250658A JP S63250658 A JPS63250658 A JP S63250658A JP 62085140 A JP62085140 A JP 62085140A JP 8514087 A JP8514087 A JP 8514087A JP S63250658 A JPS63250658 A JP S63250658A
Authority
JP
Japan
Prior art keywords
toner
nuclei
insulating material
type semiconductor
development
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
JP62085140A
Other languages
Japanese (ja)
Inventor
Masanao Kunugi
正尚 功刀
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.)
Seiko Epson Corp
Original Assignee
Seiko Epson Corp
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 Seiko Epson Corp filed Critical Seiko Epson Corp
Priority to JP62085140A priority Critical patent/JPS63250658A/en
Publication of JPS63250658A publication Critical patent/JPS63250658A/en
Pending legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03GELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G9/00Developers
    • G03G9/08Developers with toner particles
    • G03G9/097Plasticisers; Charge controlling agents
    • G03G9/09708Inorganic compounds
    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03GELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G9/00Developers
    • G03G9/08Developers with toner particles
    • G03G9/087Binders for toner particles
    • G03G9/08702Binders for toner particles comprising macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • G03G9/08726Polymers of unsaturated acids or derivatives thereof
    • G03G9/08731Polymers of nitriles
    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03GELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G9/00Developers
    • G03G9/08Developers with toner particles
    • G03G9/09Colouring agents for toner particles
    • G03G9/0906Organic dyes

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Developing Agents For Electrophotography (AREA)

Abstract

PURPOSE:To produce a one component toner capable of carrying out simultaneous development by forming nuclei of toner using a thermoplastic resin as binder resin, mercury sulfide as an N-type semiconductor, and a magnetic material, etc., and coating the surface of the nuclei with an insulating material. CONSTITUTION:Toner nuclei 5 are formed by dispersing HgS (black) as an N-type semiconductor 2, another pigment 4, and a magnetic material 3 (e.g. gamma-Fe oxide, etc.) in a thermoplastic resin such as polyacrylonitrile, etc. as binder resin 1. An insulating material 6 such as hydrophobic colloidal silica, etc. is coated on the surface of the toner nuclei 5 with 10-90% percentage of covering to obtain thus a one component toner. Since the toner contains an N-type semiconductor and the toner nuclei are coated with an insulating material, the charge injection in the stage of development is carried out at the semiconductor part, and the transfer is carried out using previously charged electric charge of the insulated part because of absence of injection of electric charge of reverse polarity into the semiconductor part. By this constitution, a satisfactory transferred picture image is obtd. without being influenced by the humidity.

Description

【発明の詳細な説明】 (産業上の利用分野〕 本発明は、電子写J’Lで使用される一成分トリ・−の
ミ11成及び構造に閃する。
DETAILED DESCRIPTION OF THE INVENTION (Industrial Field of Application) The present invention is directed to the composition and structure of a one-component tri-layer used in electrophotography J'L.

〔従来の技術〕[Conventional technology]

近年、電子写真技術を利用した印刷装置が種々実用化し
利用されるに至っている。この技術において利用されて
いるトナーについて概説すると、[カールソンプロセス
」を利用した印刷装置の場合は、2成分磁気ブラシ現像
法やフロート電極効果現像法< r: +: E D法
)においては絶縁性非磁性トリー−、ジャンピング現像
法においては絶縁性磁性トナーが用いられており、エレ
クトロファクスの場合には、導電性磁性トナーが用いら
れている。また、最近では、プ1」セスの大幅な商略化
の可能を秘める、露光と現像を11時に行なって画像を
形成する新しい電子写真技術を利用した方法(以IS1
同時法と呼ぶ)が、各所で倹iFされ、例えば特開昭5
8−153957にt!2案されている。この同nri
法によれば、従来の電子写真技術による印刷装置7rで
必要である、帯電器、除電器、クリーリ゛の各プロセス
が不要となり、また排トリ・−も生じない為、プロセス
の囲路化とトナーの節約が図れ、装置の小型化、低コス
ト化が可能となる。この同時法を概説すると、露光中に
バイアス電圧を印加した導電性磁性トナーのブラシで、
光導電体層を含んでいるNN像形成体の表面を擦過する
方lJ:が最適の現像法として考えられており、光導電
体が絶縁体として作用する時(未露光部)と、fJ電体
として作用する時(露光部)(!−で、バイアス電圧に
よる画像形成表面に[&触しているトリーへの1.IE
人電何量にちがいが生じ、その電何量のX:か画像形成
(ト表面への静電CI’ r:力の差となってトナー画
像形成が可能となっている。
In recent years, various printing devices using electrophotographic technology have been put into practical use and used. To give an overview of the toners used in this technology, in the case of printing devices using the Carlson process, insulating toners are used in two-component magnetic brush development method and float electrode effect development method Insulating magnetic toner is used in non-magnetic tree and jumping development methods, and conductive magnetic toner is used in electrofaxing. Recently, a method using new electrophotographic technology (hereinafter referred to as "IS1") that forms images by performing exposure and development at 11 o'clock has been developed, which has the potential to significantly commercialize the IS1 process.
(referred to as the simultaneous method) has been used extensively in various places, for example, in JP-A-5
T on 8-153957! Two proposals have been proposed. This same nri
According to the law, the processes of chargers, static eliminators, and cleaners that are required in conventional electrophotographic printing equipment 7r are no longer required, and there is no discharge, so the process can be enclosed. Toner can be saved, and the device can be made smaller and lower in cost. To outline this simultaneous method, a brush of conductive magnetic toner is applied with a bias voltage during exposure.
The method of rubbing the surface of the NN image forming body containing the photoconductor layer is considered to be the optimal development method, and when the photoconductor acts as an insulator (unexposed area) and when the fJ voltage is When acting as a body (exposure section) (!-, the imaging surface by a bias voltage [& 1.IE to the tree touching
There is a difference in the amount of human electricity, and the difference in the amount of electricity X: image formation (electrostatic CI' r: force on the surface) makes it possible to form a toner image.

〔発明か解決しようとする問題点〕[The problem that the invention attempts to solve]

しかし、同時法で用いるトリー−は、そのミノ4性のた
めに、トリ°−の電荷が短い緩和1117間で中和され
、紙への静電付着力が弱まるので、周知の静電転”T 
llζでは、紙への転TI率が低下する。特に高湿時に
おいては紙への導電性が高まり、紙からトナーへ逆極性
の電荷注入が生じる結果、周知の静電転写法では紙への
転写が全くできなくなるという欠点をイrしていた。
However, due to the mini-4 nature of the trees used in the simultaneous method, the electric charge of the trees is neutralized during a short relaxation period, weakening the electrostatic adhesion to the paper, and this is due to the well-known electrostatic transfer. T
At llζ, the transfer TI rate to paper decreases. Particularly in high humidity conditions, the electrical conductivity of the paper increases, causing charge injection of the opposite polarity from the paper to the toner, which eliminates the drawback that the well-known electrostatic transfer method cannot transfer to paper at all. .

本発明の目的は、同時法において現(Qが可能で、かつ
コ11す“転写法で′B通紙への転写が行なえるトナー
を提供する平にある。
It is an object of the present invention to provide a toner that can be transferred to a passing paper using a simultaneous transfer method and a transfer method using a transfer method.

〔問題点を解決するための手段〕[Means for solving problems]

本発明における一成分トナーは↑+’i首セJ4指とし
て熱可りz芝Ti 43+脂、:1′、導体材として、
N型゛11ξ体であるI/、+化水銀(b I a c
 k )  (II HS )を用い、その他イ′1色
材と磁性材を加えてなる゛1′−導体トリ“−の表面に
、絶縁性物質を被覆率lO〜00%にコーテイングする
事を特徴とする。
The one-component toner in the present invention is ↑ + 'i neck se J4 finger as heatable z Shiba Ti 43 + fat, :1', as conductor material.
Mercury chloride (b I a c
k) (II HS), and is characterized by coating the surface of the ``1''-conductor tri'', which is made by adding coloring material and magnetic material, with an insulating material to a coverage rate of 10 to 00%. shall be.

〔作用〕[Effect]

本発明の上記の!+’?成によれば、同時tノJにおけ
る像形成111!の画像形成体表面に接触しているトリ
゛−への電゛荷注入はN型゛r)0体の負の、+r・シ
リアの移動によって行ない、転7T ”jの紙への静電
(4’ 4’?カは、紙との接触により、注入されたキ
シリアが紙を通して中和されるのるで、逆極性(正)の
電荷注入は行なわれないため、あらかじめ帯電させであ
るトナー拉r・表面の絶縁性部の電荷に1U当させる7
1jによって静電転写を行う事ができる。
The above of the present invention! +'? According to Seiji, image formation at the same time t no J 111! The charge injection into the trigonium in contact with the surface of the image forming body is carried out by the movement of the negative +r Syria of the N-type ゛r) 0 body, and the electrostatic charge ( 4'4'?The reason is that the injected xylia is neutralized through the paper by contact with the paper, so there is no reverse polarity (positive) charge injection, so the toner is pre-charged. r・Apply 1U to the charge of the insulating part on the surface 7
1j enables electrostatic transfer.

〔実施例〕〔Example〕

第1図に、本発明の実施例におけるトリ°−の断面図を
示す。本発明におけるトリ゛−は結f1樹脂1の中に、
半導体材2、磁性材3、σ1t14とその他添加剤が分
散したトリ゛−核5の表面に絶縁材6が点在している(
114造となっている。バインダーJal lltとし
ては、通常使用されている公知の熱可塑性樹脂であるも
のが望ましく、ボリスチレ/及びその共重合体、ポリエ
ステル及びその共重合体、ポリエヂレ/及びその共重合
体、アクリル系樹脂、ビニル系(に・1脂などが弔独あ
るいはl足台して用いる。
FIG. 1 shows a sectional view of a tray in an embodiment of the present invention. In the present invention, the trie is in the resin 1,
Insulating materials 6 are dotted on the surface of trigonium 5 in which semiconductor material 2, magnetic material 3, σ1t14 and other additives are dispersed (
It is made of 114 buildings. The binder Jal llt is desirably a commonly used thermoplastic resin, such as polyethylene/and its copolymer, polyester and its copolymer, polyester/and its copolymer, acrylic resin, vinyl, etc. Types (ni, 1 fat, etc.) are used as condolences or l footstools.

磁性材としては、公知の磁性体粉末である、四三酸化鉄
、γ−酸化第二鉄、二酸化り(l I−s、ニラゲルフ
ェライト、鉄合金粉末などを用いる。M f:[として
は、カーボンプラ・ツク、スピリットブラック、ニゲI
ノシンなどを用いる。さらにその他の添加剤として、流
動性向上化剤を添加するのが好ましい。
As the magnetic material, known magnetic powders such as triiron tetroxide, γ-ferric oxide, sulfur dioxide (I-s), nila gel ferrite, iron alloy powder, etc. are used. , Carbon Pla Tsuku, Spirit Black, Nige I
Use Nosine etc. Furthermore, it is preferable to add a fluidity improver as another additive.

又、本トリ”−に使用する絶縁性物質としては、疎水性
コロイダルシリカあるいはシリカ微粒子を使用する。
Further, as the insulating material used in this case, hydrophobic colloidal silica or silica fine particles are used.

上記+1;f f′)を使用してトリー−核5を製造す
る方法としては、混1:It 、粉砕法及びスプレー法
を用いることができる。さらに該トナー核5に、絶縁性
物7′iを所定111被覆する方法としては、熱気流中
^即lノ:及びボールミル処理法で被覆後、高外気温あ
るいは、超音波振動により絶縁性物質を所定量除去する
ことにより行なわれる。
As a method for producing the tree core 5 using the above +1; f f'), mixing 1:It, a pulverization method, and a spray method can be used. Furthermore, as a method of coating the toner cores 5 with a predetermined amount of the insulating material 7'i, the insulating material 7'i is coated immediately in a hot air stream and by a ball milling method, and then the insulating material 7'i is coated with the insulating material 7'i at high outside temperature or by ultrasonic vibration. This is done by removing a predetermined amount of.

〔実h111例1〕 熱1+7塑+’+ 174脂として、1!リアクリ11
ントリル(11AN)、’1′−存体材として硫化水銀
(115:S)%磁t’+: +4としてγ−酸化鉄1
.T7色剤としてスピリットブラックを用い、表1に示
す、911成にIi;f j)を秤111し、該1’、
;i nをアセトンにi8解、分散してスプレー法で1
0〜15μmのl・す“−核を製造した。次に上記トリ
ー核に絶縁性物質として疎水性Tl rJイダルシリノ
Jを用いて、ボールミル 超1“7波振動により表2に示−J、IJi定の被覆率
にJ.!J整してトリー−を製造した。表面被覆率は、
Slζ間及び゛「IζN1写J’(より求めた。
[Actual h111 example 1] As heat 1 + 7 plastic + '+ 174 fat, 1! Reakuri 11
(11AN), '1'-mercury sulfide (115:S) as existing material, % magnetic t'+: γ-iron oxide 1 as +4
.. Using spirit black as the T7 coloring agent, the 911 compositions shown in Table 1 were weighed, and the 1',
;I 8 solution in acetone, disperse and spray 1
A 0 to 15 μm l·S"-nucleus was produced. Next, using hydrophobic Tl rJ Idarsilino J as an insulating material on the above tree nucleus, a ball mill ultra 1" 7-wave vibration was applied to the tree nucleus as shown in Table 2. J. ! A tree was prepared by preparing J. The surface coverage is
Between Slζ and ``IζN1 copy J' (obtained from.

表1 表2 次にこの・す゛ンプルNo、1〜4のトリ°−咳に、各
々、表2のA −1)の被覆率を施した一成分トリ°−
を用いて、同11′7法により、現像、転写、定着を行
なったところ、良好な定管像を得ることができた。
Table 1 Table 2 Next, the one-component tri-cough samples Nos. 1 to 4 were each given the coverage of A-1) in Table 2.
When development, transfer and fixing were carried out using the same 11'7 method, a good fixed tube image could be obtained.

〔比較例1〕 〔実施例1〕と同(、′Qな原料と製造方法により表3
に示すトリ・−核を製造し、表4に示す被覆率を施した
[Comparative Example 1] Same as [Example 1] (Table 3)
The tri-core shown in Table 4 was produced and the coverage shown in Table 4 was applied.

表3 表4 次にこのサンプルNo、5〜8のトリ°−核に、各々表
4のIE〜11の被覆率を施した一成分トリ゛−を用い
て、現像、転写、定行を行なったところ、良好な定着像
を得る事ができなかった。この原因は、II sr S
の含有はが50%を超えると樹脂と磁1′1.材の割合
が少なくなり、現像あるいは定刻ができなくなるからで
ある。またII ff Sの含イf量が20%より少な
くなると樹脂が半導電性を示さなくなり現像を行なうこ
とができない。従ってII ff Sの含イr’ 、2
tは20〜50%が好ましい。また絶縁性物質の被覆率
については、00%を超えると充分な電イ:ijl二人
が行なわれず、現像を行なうことができない、また10
%より少なくなると帯電htが不足して転写を行なう事
ができない。従って絶縁性物質の肢IM率は10〜90
%が好ましい。
Table 3 Table 4 Next, development, transfer, and regular printing were performed on the sample No. 5 to 8 tri-nuclei using one-component tri-nuclei having coverage rates of IE to 11 in Table 4, respectively. However, a good fixed image could not be obtained. The cause of this is II sr S
If the content exceeds 50%, resin and magnetic 1'1. This is because the proportion of the material decreases, making it impossible to develop or engrave. Further, when the i f content of II ff S is less than 20%, the resin exhibits no semiconductivity and development cannot be performed. Therefore, the inclusion r' of II ff S, 2
t is preferably 20 to 50%. Regarding the coverage rate of the insulating material, if it exceeds 00%, sufficient electricity will not be applied and development will not be possible.
%, charging ht is insufficient and transfer cannot be performed. Therefore, the limb IM rate of insulating materials is 10-90
% is preferred.

〔実施例2〕 熱可塑性(÷1脂としてアクリル樹脂、半導体材として
II Ir S 、磁性材として四三酸化鉄、4rr色
剤としてニゲlIシンを用い、〔実施例I〕の表1と同
Fiの4・11成に秤けする。その後スクリュー押出機
で混練、ジ、ットミルで’tb e)砕、気流分級機で
分級のプ[Iセスを行ない10〜貫5μmのトリ・−?
亥を製造した。次に」二足トリ゛−値に絶縁性物質とじ
て峠水性:I I+イダルシリ力を用いて、〔実施例1
〕の表2とト11.Tl!な被覆率になる様に、秤Lt
 L 、−に記トナー核とfIX、合後、熱気流中にI
!IT霧して被覆を行なった。k面被iXl率はS E
 M及びTIζMより求めた。
[Example 2] Same as Table 1 of [Example I] using thermoplastic (÷1) acrylic resin as the resin, II Ir S as the semiconductor material, triiron tetroxide as the magnetic material, and Nigelshin as the 4rr coloring agent. After that, the mixture was kneaded using a screw extruder, crushed using a jet mill, and subjected to a classification process using an air classifier.
produced a boar. Next, using the two-legged tri-value as an insulating material and the water resistance: I + Idarushiri force, [Example 1
] Table 2 and G11. Tl! The scale Lt is adjusted so that the coverage rate is
L, - After the toner nucleus and fIX are combined, I is placed in the hot air flow.
! Coating was done by IT misting. The k-plane iXl coverage rate is S E
It was determined from M and TIζM.

次にこれらのサンプルについて〔実施(’A l )と
同様に、同時法により現像、転77、定イ′tを行なっ
たところ良好な定着像を得ることができた。
Next, these samples were subjected to development, transfer 77, and fixation using the same method as in Example ('A l ), and a good fixed image was obtained.

〔比較例2〕 〔実施例2〕と同様なh;1料と製造方法により、〔比
較例!〕の表3と同様な組成と表4の被覆率でトリ“−
を製造した。
[Comparative Example 2] [Comparative Example! ] with the same composition as in Table 3 and the coverage in Table 4.
was manufactured.

次にこれらのサンプルについて〔比較例1〕と同ト′口
に現像、転写、定行を行にったとこる良好な定着像を得
る事ができなかった。これより、l1g5の含イ1°率
は20〜50%が好ましい。また、絶縁性物グ1の被覆
率は10〜90%が好ましい。
Next, these samples were developed, transferred, and printed in the same manner as in [Comparative Example 1], but it was not possible to obtain a good fixed image. From this, it is preferable that the 1° content of l1g5 is 20 to 50%. Moreover, the coverage rate of the insulating material 1 is preferably 10 to 90%.

〔発明の効果〕〔Effect of the invention〕

以上述べたように本発明によれば、電子写JN用トリー
において、結rt樹脂として熱可塑性樹脂、半導体材と
して、N型半JO体である硫化水(II(black)
を用い、その伸行色材と磁性材を加えてなる半導体トナ
ーの表面に、絶縁性物質を被覆した71(により、現像
時の電荷注入は半導体部によって行なわれ、転写は半C
体部への逆極性の71i荷の注入がないので、あらかじ
め帯電させである絶縁性部の電荷によって行なうことが
できる。これにより本トナーを同時法に使用するならば
、湿度の影響を受けず、良好な転写画像を得る事ができ
る為、小型、低価格の印刷装置を提供するJICができ
る。
As described above, according to the present invention, in the electronic copy JN tree, thermoplastic resin is used as the binder rt resin, and sulfide water (II (black)), which is an N-type semi-JO body, is used as the binder rt resin.
The surface of the semiconductor toner is coated with an insulating material (71), which is made by adding a stretching coloring material and a magnetic material, so that the charge injection during development is performed by the semiconductor part, and the transfer is carried out in half-C.
Since there is no injection of 71i charges of opposite polarity into the body, this can be done by charging the insulating part, which is pre-charged. As a result, if this toner is used in the simultaneous method, it is not affected by humidity and a good transferred image can be obtained, allowing JIC to provide a compact, low-cost printing device.

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

第1rAは本発明におけるトナーの実施例を示す図。 2・・・半導体材 6・・・絶縁材 以   −ヒ 出願人 セイコーエプソン株式会社 第1図 1rA is a diagram showing an embodiment of the toner according to the present invention. 2...Semiconductor material 6...Insulating material -H Applicant: Seiko Epson Corporation Figure 1

Claims (1)

【特許請求の範囲】[Claims] 電子写真用トナーにおいて、結着樹脂として熱可塑性樹
脂、半導体材として、N型半導体である硫化水銀HgS
(black)を用い、その他着色材と磁性材を加えて
なる半導体トナーの表面に、絶縁性物質を被覆率10〜
90%にコーティングする事を特徴とする一成分トナー
In electrophotographic toner, thermoplastic resin is used as the binder resin, and mercury sulfide HgS, which is an N-type semiconductor, is used as the semiconductor material.
(black) and other coloring materials and magnetic materials are added to the surface of the semiconductor toner.
A one-component toner characterized by a 90% coating.
JP62085140A 1987-04-07 1987-04-07 One component toner Pending JPS63250658A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62085140A JPS63250658A (en) 1987-04-07 1987-04-07 One component toner

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62085140A JPS63250658A (en) 1987-04-07 1987-04-07 One component toner

Publications (1)

Publication Number Publication Date
JPS63250658A true JPS63250658A (en) 1988-10-18

Family

ID=13850352

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62085140A Pending JPS63250658A (en) 1987-04-07 1987-04-07 One component toner

Country Status (1)

Country Link
JP (1) JPS63250658A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04204658A (en) * 1990-11-30 1992-07-27 Mita Ind Co Ltd Electrophotographic one component system developer
JPH04204664A (en) * 1990-11-30 1992-07-27 Mita Ind Co Ltd Electrophotographic magnetic developer
JPH04204665A (en) * 1990-11-30 1992-07-27 Mita Ind Co Ltd One component system magnetic developer

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04204658A (en) * 1990-11-30 1992-07-27 Mita Ind Co Ltd Electrophotographic one component system developer
JPH04204664A (en) * 1990-11-30 1992-07-27 Mita Ind Co Ltd Electrophotographic magnetic developer
JPH04204665A (en) * 1990-11-30 1992-07-27 Mita Ind Co Ltd One component system magnetic developer

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