Developing regulation member and developing apparatus

    公开(公告)号:EP1507175B1

    公开(公告)日:2018-09-12

    申请号:EP04016694.4

    申请日:2004-07-15

    IPC分类号: G03G15/08

    摘要: A developer regulation member includes developer regulation means (35) for regulating an amount of developer carried on a developer carrying member (33). The developer regulation means includes a first regulation portion (11) formed of a first material which has a Shore D hardness of not less than 70 degrees or is metal, and a second regulation portion (12) which is disposed opposite to the developer carrying member and is formed of a material different from the first material for the first regulation portion. The second regulation portion has an edge which is in contact with the developer carrying member.

    Image forming apparatus
    3.
    发明公开
    Image forming apparatus 审中-公开
    成像设备

    公开(公告)号:EP1469359A3

    公开(公告)日:2009-02-11

    申请号:EP04017324.7

    申请日:1999-03-04

    IPC分类号: G03G15/02

    摘要: The present invention provides an image forming apparatus which comprises an image bearing member (1), a charging rotary member (8) rotating while contacting with the image bearing member, and a slide friction sheet (81) contacting with the charging rotary member along an axial direction of the charging rotary member for dispersing a contamination adhered to the charging rotary member.

    摘要翻译: 本发明提供一种图像形成设备,其包括图像承载部件(1),在与图像承载部件接触的同时旋转的充电旋转部件(8),以及沿着图像承载部件与充电旋转部件接触的滑动摩擦片(81) 用于分散粘附在充电旋转部件上的污物的充电旋转部件的轴向。

    Developing apparatus and image forming apparatus
    4.
    发明公开
    Developing apparatus and image forming apparatus 有权
    EntwicklungsgerätundBilderzeugungsgerät

    公开(公告)号:EP1033630A3

    公开(公告)日:2004-03-17

    申请号:EP00104229.0

    申请日:2000-03-01

    IPC分类号: G03G15/08

    CPC分类号: G03G15/081

    摘要: A developing device includes a developer carrying member (4b) for carrying a layer of developer, the developer carrying member forming a developing zone (b) where the layer of the developer is contacted to the developer carrying member and to an image bearing member (1) carrying a latent image; and a charge application member (4e) for applying electric charge to the developer carried on the developer carrying member by electric discharge, the charge application member being provided upstream of the developing zone with respect to a moving direction of the developer carrying member.

    摘要翻译: 显影装置包括用于承载显影剂层的显影剂承载构件,形成显影区的显影剂承载构件,其中显影剂层与显影剂承载构件接触并承载潜像的图像承载构件; 以及电荷施加部件,用于通过放电对携带在显影剂承载部件上的显影剂施加电荷,电荷施加部件相对于显影剂承载部件的移动方向设置在显影区域的上游。

    Developing apparatus
    5.
    发明公开
    Developing apparatus 有权
    显影设备

    公开(公告)号:EP1069483A3

    公开(公告)日:2002-01-02

    申请号:EP00115145.5

    申请日:2000-07-12

    IPC分类号: G03G15/08

    CPC分类号: G03G15/0818 G03G2215/0861

    摘要: The present invention provides a developing apparatus which has a developer carrying body carrying a developer thereon, and a layer thickness regulating member for regulating the layer thickness of the developer carried on the developer carrying body, the developer carried on the developer carrying body contacting with an image bearing body after the layer thickness thereof has been regulated by the layer thickness regulating member. In the developing apparatus, when the charge amount per 1 g of the developer after the layer thickness has been regulated by the layer thickness regulating member and before the developer contacts with the image bearing body is defined as Q (µC/g) and the electrical resistance per axial length 1 mm of the developer carrying body is defined as R (Ω/mm),R ≥ 0.9 × (-7.83 × 104 |Q| + 7.05 × 106) andR ≤ 1.1 × (-7.83 × 104 |Q| + 7.05 × 106) are satisfied.

    摘要翻译: 本发明提供一种显影装置,该显影装置具有承载显影剂的显影剂承载体和用于调节承载在显影剂承载体上的显影剂层厚度的层厚调节构件,承载在显影剂承载体上的显影剂与 图像承载体的层厚度已经被层厚调节构件调节之后。 在显影装置中,当通过层厚调节部件调节层厚之后并且在显影剂与图像承载体接触之前每1g显影剂的带电量被定义为Q(μC/ g)并且电气 R = 0.9×(-7.83×104 | Q | + 7.05×106),R≤1.1×(-7.83×104 | Q |),将显影剂承载体的每轴长1mm的电阻设为R(Ω/ mm) + 7.05×106)。

    Image-forming apparatus and process cartridge for maintaining the polarity of triboelectrically charged toner during contact developing
    9.
    发明公开
    Image-forming apparatus and process cartridge for maintaining the polarity of triboelectrically charged toner during contact developing 审中-公开
    的图像与保持在接触显影摩擦带电调色剂的极性形成装置和处理盒

    公开(公告)号:EP2280317A1

    公开(公告)日:2011-02-02

    申请号:EP10183148.5

    申请日:2001-09-04

    IPC分类号: G03G15/09 G03G9/08 H04N1/40

    摘要: An image-forming apparatus and a process cartridge, both comprising an image-bearing member (1) for holding thereon an electrostatic latent image; a charging means (5) for charging the surface of the image-bearing member electrostatically; an exposure unit (6) for forming the electrostatic latent image on the image-bearing member by exposing to light the image-bearing member as charged; a developing unit (3) with at least one toner-carrying member (2) for carrying and transporting a negatively chargeable toner (10) thereon that has toner particles and at least one external additive, for developing the electrostatic latent image by contact developing. Regarding triboelectric series relationship the toner particles, surface layer of the image-bearing member and external additive are thus ordered from the negative side, respectively, while the image-bearing member has a latent image surface potential within a range of -500 V and-800 V, as non-image area potential Vd, and within a range of -50 V and -200 V as image area potential VI for maximum toner image density. Also, the charge polarity of the surface layer of the image-bearing member may be different with respect to that of the toner in the development unit.

    摘要翻译: 一个图象形成装置和处理盒,两个用于在其上保持静电潜像,包括:图像承载构件(1); 用于静电图像承载部件的表面充电的充电装置(5); 上曝光单元(6),用于通过暴露于光的图像承载元件充电的作为形成在图像承载构件上的静电潜像; 显影单元(3)与至少一种调色剂承载元件(2),用于承载和输送可充负电的调色剂(10)在其上并具有调色剂颗粒和至少一种外部添加剂,用于通过接触显影显影静电潜像。 关于带电序列关系的调色剂颗粒中,图象承载元件和外部添加剂的表面层中,因而与负极侧有序的,分别,而图象承载元件的范围为-500V的和 - 内的潜像表面电位 800 V,作为非图像区电势Vd,以及一系列-50伏的范围内和-200V的作为最大调色剂图像密度图像区电势VI。 因此,图象承载元件的表面层的电荷极性可以相对于调色剂不同在显影单元所做的。

    Image-forming apparatus and process cartridge for maintaining the polarity of triboelectrically charged toner during contact developing
    10.
    发明公开
    Image-forming apparatus and process cartridge for maintaining the polarity of triboelectrically charged toner during contact developing 审中-公开
    的图像与保持在接触显影摩擦带电调色剂的极性形成装置和处理盒

    公开(公告)号:EP2280316A1

    公开(公告)日:2011-02-02

    申请号:EP10183137.8

    申请日:2001-09-04

    IPC分类号: G03G15/09 G03G9/08 H04N1/40

    摘要: An image-forming apparatus and a process cartridge, both comprising an image-bearing member (1) for holding thereon an electrostatic latent image; a charging means (5) for charging the surface of the image-bearing member electrostatically; an exposure unit (6) for forming the electrostatic latent image on the image-bearing member by exposing to light the image-bearing member as charged; a developing unit (3) with at least one toner-carrying member (2) for carrying and transporting a negatively chargeable toner (10) thereon that has toner particles and at least one external additive, for developing the electrostatic latent image by contact developing. Regarding triboelectric series relationship the toner particles, external additive and surface layer of the image-bearing member are thus ordered from the negative side, respectively, while the image-bearing member has a latent image surface potential wihtin a range of -500 V and -800 V as non-image area potential Vd, and within a range of -50 V and -200 V as image area potential VI for maximum toner image density. Also, the charge polarity of the surface layer of the image-bearing member may be different with respect to that of the toner in the developing unit.

    摘要翻译: 一个图象形成装置和处理盒,两个用于在其上保持静电潜像,包括:图像承载构件(1); 用于静电图像承载部件的表面充电的充电装置(5); 上曝光单元(6),用于通过暴露于光的图像承载元件充电的作为形成在图像承载构件上的静电潜像; 显影单元(3)与至少一种调色剂承载元件(2),用于承载和输送可充负电的调色剂(10)在其上并具有调色剂颗粒和至少一种外部添加剂,用于通过接触显影显影静电潜像。 关于带电序列关系的调色剂颗粒,所述图像承载构件的外部添加剂和表面层由此从负侧有序的,分别,而图象承载元件具有wihtin的范围的-500 V和潜像表面电位 - 800 V作为非图像区电势Vd,以及一系列-50伏的范围内和-200V的作为最大调色剂图像密度图像区电势VI。 所以,调色剂确实在显影单元中的图像承载构件的表面层的电荷极性可相对于不同。