Negatively chargeable toner with specified fine particles added
externally
    42.
    发明授权
    Negatively chargeable toner with specified fine particles added externally 失效
    带负电荷的带有特殊细颗粒的调色剂

    公开(公告)号:US5776646A

    公开(公告)日:1998-07-07

    申请号:US879330

    申请日:1997-06-20

    IPC分类号: G03G9/097 G03G9/107

    CPC分类号: G03G9/097 G03G9/09708

    摘要: The invention relates to: (1) negatively chargeable toner particles with inorganic fine particles externally added thereto, the inorganic fine particles having a specified number-mean particle size and a specified chargeability, and (2) toner particles with silica fine particles and titania fine particles added to the toner particles in specified quantities and respectively having a specified number-mean particle size and a specified degree of hydrophobicity and, in combination therewith, inorganic particles having a specified number-mean particle size added to the toner particles. The toner of the present invention has good environmental stability, non-sticking characteristic, and good storage stability, and is capable of forming good images without aggregation noise and free of fogging after repetition of copy. The toner is suitable for full-color image formation in particular.

    摘要翻译: 本发明涉及:(1)具有外部添加的无机细颗粒的带负电荷的调色剂颗粒,所述无机细颗粒具有指定的数均粒径和指定的带电性,和(2)具有二氧化硅细颗粒和二氧化钛的调色剂颗粒 颗粒以规定的量添加到调色剂颗粒中,并且分别具有指定的数均粒径和特定的疏水度,并且与其组合,添加到调色剂颗粒中的具有指定数均粒径的无机颗粒。 本发明的调色剂具有良好的环境稳定性,不粘特性和良好的储存稳定性,能够在没有聚集噪声的情况下形成良好的图像,并且在重复复制之后不会起雾。 该调色剂特别适用于全色图像形成。

    Toner for electrophotography with specified fine particles added
externally
    43.
    发明授权
    Toner for electrophotography with specified fine particles added externally 失效
    用于电子照相的调色剂,具有外部添加的特定细颗粒

    公开(公告)号:US5759731A

    公开(公告)日:1998-06-02

    申请号:US879328

    申请日:1997-06-20

    摘要: The invention relates to (1) a toner with inorganic fine particles added externally, the inorganic fine particles having a specified mean particle size and a specified particle size distribution, and (2) a toner having specified particle size, specific gravity, and angle of toner repose, and a developing agent comprising the toner and a carrier. The toner of the present invention has good environmental stability, non-sticking characteristic, and good storage stability under hot conditions, and is capable of forming good images without aggregation noise. Further, the toner is not liable to produce toner dust and does not damage the photoconductor. The toner is particularly suitable for full-color image formation.

    摘要翻译: 本发明涉及(1)外部添加有无机细颗粒的调色剂,具有规定的平均粒度和规定的粒度分布的无机细颗粒,和(2)具有规定的粒径,比重和角度的调色剂 调色剂沉淀,以及包含调色剂和载体的显影剂。 本发明的调色剂在热条件下具有良好的环境稳定性,不粘特性和良好的储存稳定性,能够形成良好的图像而没有聚集噪音。 此外,调色剂不易产生调色剂粉尘,并且不会损坏感光体。 调色剂特别适用于全色图像形成。

    Toner, developer including the toner, and image forming method and apparatus using the toner
    47.
    发明授权
    Toner, developer including the toner, and image forming method and apparatus using the toner 有权
    包括调色剂的调色剂,显影剂,以及使用调色剂的成像方法和设备

    公开(公告)号:US07981593B2

    公开(公告)日:2011-07-19

    申请号:US11855759

    申请日:2007-09-14

    IPC分类号: G03G15/20

    摘要: A toner including toner particles including a resin, a colorant, a wax, and a charge controlling agent, and an external additive, wherein the toner satisfies the relationships (1) 0.15×Q−2≦T≦0.15×Q−0.15, and (2) 1.0≦T≦2.5, wherein Q represents the charge of the toner in units of μC/g, and T represents the torque of the toner in units of mN·m determined by a method using a cone-shaped rotor while controlling a space ratio of the toner at 58%. A developer including the toner and a carrier. An image forming apparatus including an image bearing member, a transfer device, a fixing device and a double side image forming unit, and using the toner, wherein the receiving material includes moisture in an amount of not greater than 5% by weight after the toner image on the first side is fixed.

    摘要翻译: 包含调色剂颗粒的调色剂包括树脂,着色剂,蜡和电荷控制剂,以及外部添加剂,其中调色剂满足关系式(1)0.15×Q-2≦̸ T≦̸ 0.15×Q-0.15和 (2)1.0≦̸ T≦̸ 2.5其中Q表示以μC/ g为单位的调色剂的电荷,T表示以通过锥形转子的方法确定的以mN·m为单位的调色剂的转矩, 控制调色剂的空间比为58%。 包括调色剂和载体的显影剂。 一种图像形成装置,包括图像承载部件,转印装置,定影装置和双面图像形成单元,并且使用调色剂,其中所述接收材料包含在调色剂之后不大于5重量%的量的水分 第一面的图像是固定的。

    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.