JP2013064854A5

JP2013064854A5 -

Info

Publication number: JP2013064854A5
Application number: JP2011203246A
Authority: JP
Filing date: 2011-09-16
Publication date: 2014-10-16
Anticipated expiration: 2031-09-16

Description

請求項１０に係る発明は、
像保持体の表面を帯電する帯電工程と、
帯電された前記像保持体の表面に静電荷像を形成する静電荷像形成工程と、
前記像保持体の表面に形成された前記静電荷像を、請求項１から請求項６のいずれか１項に記載の静電荷像現像剤により現像してトナー像を形成する現像工程と、
前記像保持体の表面に形成された前記トナー像を被転写体の表面に転写する転写工程と、
を有する画像形成方法である。 The invention according to claim 10 is:
A charging step for charging the surface of the image carrier;
An electrostatic charge image forming step of forming an electrostatic charge image on the surface of the charged image carrier;
A developing step of developing the electrostatic image formed on the surface of the image carrier with the electrostatic image developer according to any one of claims 1 to 6 to form a toner image;
A transfer step of transferring the toner image formed on the surface of the image carrier onto the surface of the transfer target;
Is an image forming method.

第１のユニット１０Ｙは、像保持体として作用する感光体１Ｙを有している。感光体１Ｙの周囲には、感光体１Ｙの表面を予め定められた電位に帯電させる帯電ローラ２Ｙ（帯電手段）、帯電された表面を色分解された画像信号に基づくレーザ光線３Ｙよって露光して静電荷像を形成する露光装置３（静電荷像形成手段）、静電荷像に帯電したトナーを供給して静電荷像を現像する現像装置４Ｙ（現像手段）、現像したトナー像を中間転写ベルト２０上に転写する１次転写ローラ５Ｙ、および１次転写後に感光体１Ｙの表面に残存するトナーを除去する感光体クリーニング装置６Ｙが順に配置されている。なお、上記転写手段は、１次転写ローラ５Ｙ、中間転写ベルト２０、及び後述する２次転写ローラ２６を含んで構成されている。 The first unit 10Y includes a photoreceptor 1Y that functions as an image holding member. Around the photoreceptor 1Y, a charging roller 2Y (charging means) for charging the surface of the photoreceptor 1Y to a predetermined potential, and the charged surface is exposed by a laser beam 3Y based on the color-separated image signal. Exposure device 3 ( electrostatic image forming means) for forming an electrostatic charge image, developing device 4Y (developing means) for supplying toner charged to the electrostatic charge image to develop the electrostatic charge image, and developing the toner image to an intermediate transfer belt A primary transfer roller 5Y to be transferred onto 20 and a photoconductor cleaning device 6Y to remove toner remaining on the surface of the photoconductor 1Y after the primary transfer are sequentially arranged. The transfer unit includes a primary transfer roller 5Y, an intermediate transfer belt 20, and a secondary transfer roller 26 described later.

１Ｙ、１Ｍ、１Ｃ、１Ｋ、１０７感光体（像保持体）
２Ｙ、２Ｍ、２Ｃ、２Ｋ、１０８帯電ローラ（帯電手段）
３Ｙ、３Ｍ、３Ｃ、３Ｋレーザ光線
３露光装置（静電荷像形成手段）
４Ｙ、４Ｍ、４Ｃ、４Ｋ、１１１現像装置（現像手段）
５Ｙ、５Ｍ、５Ｃ、５Ｋ１次転写ローラ
６Ｙ、６Ｍ、６Ｃ、６Ｋ、１１３感光体クリーニング装置
８Ｙ、８Ｍ、８Ｃ、８Ｋトナーカートリッジ
１０Ｙ、１０Ｍ、１０Ｃ、１０Ｋユニット
２０中間転写ベルト
２２駆動ローラ
２４支持ローラ
２６２次転写ローラ
２８、１１５定着装置（定着手段）
３０中間転写体クリーニング装置
１１１Ａ現像剤保持体
１１２転写装置（転写手段）
１１６取り付けレール
１１７除電露光のための開口部
１１８露光のための開口部
２００プロセスカートリッジ、
Ｐ、３００記録紙（被転写体） 1Y, 1M, 1C, 1K, 107 photoconductor (image carrier)
2Y, 2M, 2C, 2K, 108 Charging roller (charging unit)
3Y, 3M, 3C, 3K Laser beam 3 exposure device ( electrostatic charge image forming means)
4Y, 4M, 4C, 4K, 111 Developing device (developing means)
5Y, 5M, 5C, 5K Primary transfer rollers 6Y, 6M, 6C, 6K, 113 Photoconductor cleaning devices 8Y, 8M, 8C, 8K Toner cartridges 10Y, 10M, 10C, 10K Unit 20 Intermediate transfer belt 22 Drive roller 24 Support Roller 26 Secondary transfer rollers 28 and 115 Fixing device (fixing means)
30 Intermediate transfer member cleaning device 111A Developer holding member 112 Transfer device (transfer means)
116 Mounting rail 117 Opening part 118 for static elimination exposure Opening part 200 for exposure Process cartridge,
P, 300 Recording paper (transfer object)

Claims

A binder resin is contained, and the ratio (A _C / A _O ) of the weight percent of carbon atoms (A _C ) to the weight percent of oxygen atoms (A _O ) in the binder resin is 1.6 or more and 2 A toner having toner particles that are .7 or less;
A core material particle and a layer containing a resin adhering to the surface of the core material particle, the carbon atom weight percent (B _C ) and oxygen atom weight percent (%) in the resin adhering to the surface of the core particle ( greater than the value of B _O) and the ratio of _{_(B} C / B _O) is 2.1, and the value of the ratio _{_(B} C / B _O) is the ratio _{_(a} C / a _O) of greater than or equal With a career,
An electrostatic charge image developer.

2. The electrostatic charge image development according to claim 1, wherein the binder resin contains a polyester resin which is a polycondensate of an alcohol component and a carboxylic acid component containing an aliphatic diol having 3 to 6 carbon atoms in an amount of 60 mol% or more. Agent.

The electrostatic image developer according to claim 2, wherein the aliphatic diol having 3 to 6 carbon atoms is 1,2-propanediol.

The electrostatic image developer according to claim 1, wherein the toner further includes titania particles attached to the surface of the toner particles.

The electrostatic charge image developer according to any one of claims 1 to 4, wherein the layer containing a resin attached to the surface of the core particle further includes conductive particles.

The electrostatic charge image developer according to any one of claims 1 to 5, wherein an adhesion amount of the resin adhered to the surface of the core material particle with respect to the entire carrier is 2.0 mass% or more.

A developer cartridge containing the electrostatic charge image developer according to any one of claims 1 to 6.

An electrostatic image developer according to any one of claims 1 to 6 is accommodated, and an electrostatic image formed on a surface of an image carrier is developed with the electrostatic image developer to form a toner image. A process cartridge having developing means to be formed.

An image carrier,
Charging means for charging the surface of the image carrier;
An electrostatic charge image forming means for forming an electrostatic charge image on the surface of the charged image carrier;
7. An electrostatic charge image developer according to claim 1, wherein the electrostatic charge image developer formed on the surface of the image carrier is developed with the electrostatic charge image developer. Developing means for forming an image;
Transfer means for transferring the toner image formed on the surface of the image carrier to the surface of the transfer object;
An image forming apparatus.

A charging step for charging the surface of the image carrier;
An electrostatic charge image forming step of forming an electrostatic charge image on the surface of the charged image carrier;
A developing step of developing the electrostatic image formed on the surface of the image carrier with the electrostatic image developer according to any one of claims 1 to 6 to form a toner image;
A transfer step of transferring the toner image formed on the surface of the image carrier onto the surface of the transfer target;
An image forming method comprising: