Single component development device, process cartridge and toner
    42.
    发明授权
    Single component development device, process cartridge and toner 有权
    单组件开发设备,处理盒和墨粉

    公开(公告)号:US07873300B2

    公开(公告)日:2011-01-18

    申请号:US12186102

    申请日:2008-08-05

    IPC分类号: G03G15/08

    摘要: A single component development device including a toner including a resin, a coloring agent, a wax, a charge control agent and an inorganic particulate, a development roller to bear the toner on the surface of the development roller and transfer the toner to an image bearing member and a thin layer forming member to regulate a thickness of the layer of the toner while in contact with the surface of the development roller via the toner borne thereon, wherein a regulating pressure A between the thin layer forming member and the development roller is from 25 to 60 (N/m), a content Z (weight %) of the charge control agent satisfies the following relationship (1) and an average dispersion particle diameter D (nm) of the charge control agent satisfies the following relationship (2): 0.029×A−0.150>Z>0.013×A−0.013  Relationship (1) D

    摘要翻译: 包括包含树脂,着色剂,蜡,电荷控制剂和无机颗粒的调色剂的单组分显影装置,显影辊,用于承载调色剂在显影辊的表面上并将调色剂转印到图像承载 构件和薄层形成构件,以通过其上承载有调色剂的显影辊的表面与显影辊的表面接触来调节调色剂层的厚度,其中薄层形成构件和显影辊之间的调节压力A来自 25〜60(N / m),电荷控制剂的含量Z(重量%)满足下述关系式(1),电荷控制剂的平均分散粒径D(nm)满足下述关系式(2) :0.029×A-0.150> Z> 0.013×A-0.013关系(1)D <6.3×A-106.3关系(2)。

    IMAGE FORMING APPARATUS, PROCESS CARTRIDGE AND TONER

    公开(公告)号:US20090052952A1

    公开(公告)日:2009-02-26

    申请号:US12197651

    申请日:2008-08-25

    IPC分类号: G03G15/08

    摘要: An image forming apparatus including an image bearing member including a tube, the image bearing member to bear a latent electrostatic image, a development device including a pulverized toner including a resin, a coloring agent and a releasing agent component, the development device to develop the latent electrostatic image with the toner to form a visualized image on the image bearing member, a transfer device to transfer the visualized image to a recording medium, a fixing device including a fixing member, the fixing device to fix the visualized image on the recording medium and an elastic blade to remove the toner on the surface of the image bearing member, wherein the toner has a void ratio of from 52 to 58% and a toner torque of from 1.0 to 2.5 mNm according to a torque measuring method using a circular conical rotor and the following relationships (1) to (4) are satisfied: 45≦WA≦60   Relationship (1) 2×WA−40≦50×T≦2×WA+5   Relationship (2) 1.2≦t≦2.0   Relationship (3) 40×T−70≦15×t≦40×T−22   Relationship (4) where WA (%) represents a surface exposure amount of the releasing agent component of the toner, T (mNm) represents the toner torque at 58% of the void ratio and t (mm) represents a thickness of the tube.

    Image forming method, image forming apparatus and process cartridge
    48.
    发明授权
    Image forming method, image forming apparatus and process cartridge 有权
    图像形成方法,图像形成装置和处理盒

    公开(公告)号:US08192910B2

    公开(公告)日:2012-06-05

    申请号:US12490739

    申请日:2009-06-24

    IPC分类号: G03G13/08 G03G9/00 G03G13/20

    摘要: An image forming method, including charging the surface of an electrostatic latent image bearer by a charger; irradiating the surface of the electrostatic latent image bearer to form an electrostatic latent image thereon; developing the same with a toner to form a toner image; transferring the toner image onto a recording medium; and fixing the toner image thereon, wherein the charger is a charging roller contacting the electrostatic latent image bearer to charge the same, having a ten-point surface roughness of 5 to 30, and the toner includes a binder resin, a colorant, a release agent and an external additive including a composite oxide including titanium oxide in an amount of 80 to 95% by weight and silicon oxide, having a core-shell structure formed of a core including the titanium oxide and a shell including the silicon oxide and has a BET specific surface area of 50 to 100 m2/g.

    摘要翻译: 一种图像形成方法,包括通过充电器对静电潜像载体的表面进行充电; 照射静电潜像载体的表面以在其上形成静电潜像; 用调色剂显影相同以形成调色剂图像; 将调色剂图像转印到记录介质上; 并且其上定影调色剂图像,其中所述充电器是与所述静电潜像载体接触以对其充电的充电辊,具有5至30的十点表面粗糙度,并且所述调色剂包括粘合剂树脂,着色剂,释放 试剂和外加剂,其包含含有80〜95重量%的氧化钛的复合氧化物和氧化硅,其具有由包含氧化钛的核心和包含氧化硅的核心形成的核 - 壳结构,并具有 BET比表面积为50〜100m2 / g。

    IMAGE FORMING METHOD, IMAGE FORMING APPARATUS AND PROCESS CARTRIDGE
    50.
    发明申请
    IMAGE FORMING METHOD, IMAGE FORMING APPARATUS AND PROCESS CARTRIDGE 有权
    图像形成方法,图像形成装置和处理盒

    公开(公告)号:US20100009282A1

    公开(公告)日:2010-01-14

    申请号:US12490739

    申请日:2009-06-24

    IPC分类号: G03G13/20 G03G15/02 G03G21/18

    摘要: An image forming method, including charging the surface of an electrostatic latent image bearer by a charger; irradiating the surface of the electrostatic latent image bearer to form an electrostatic latent image thereon; developing the same with a toner to form a toner image; transferring the toner image onto a recording medium; and fixing the toner image thereon, wherein the charger is a charging roller contacting the electrostatic latent image bearer to charge the same, having a ten-point surface roughness of 5 to 30, and the toner includes a binder resin, a colorant, a release agent and an external additive including a composite oxide including titanium oxide in an amount of 80 to 95% by weight and silicon oxide, having a core-shell structure formed of a core including the titanium oxide and a shell including the silicon oxide and has a BET specific surface area of 50 to 100 m2/g.

    摘要翻译: 一种图像形成方法,包括通过充电器对静电潜像载体的表面进行充电; 照射静电潜像载体的表面以在其上形成静电潜像; 用调色剂显影相同以形成调色剂图像; 将调色剂图像转印到记录介质上; 并且其上定影调色剂图像,其中所述充电器是与所述静电潜像载体接触以对其充电的充电辊,具有5至30的十点表面粗糙度,并且所述调色剂包括粘合剂树脂,着色剂,释放 试剂和外加剂,其包含含有80〜95重量%的氧化钛的复合氧化物和氧化硅,其具有由包含氧化钛的核心和包含氧化硅的壳体形成的核 - 壳结构,并且具有 BET比表面积为50〜100m2 / g。