Image forming apparatus
    4.
    发明授权
    Image forming apparatus 有权
    图像形成装置

    公开(公告)号:US08774655B2

    公开(公告)日:2014-07-08

    申请号:US12878543

    申请日:2010-09-09

    IPC分类号: G03G15/00

    CPC分类号: G03G15/1645

    摘要: An apparatus includes: an image carrier; a charger to uniformly charge a surface of the image carrier; an exposing unit to perform write scanning on the image carrier; a developing unit that includes a developer carrier carrying a developer including a toner and that is configured to perform a visible image process on an electrostatic latent image formed on the image carrier; and a transferor to transfer a toner image that has been subjected to the process onto a material. If length Lg of a non-image part directly before an image part in an image carrier moving direction has the relation of Lg≧π·Ds/(Vs/Vp), where Vp and Vs are circumferential velocities of the image carrier and the developer carrier and Ds is a diameter of the developer carrier, suppression of toner attachment on the material is controlled in a predetermined length from an image front end in the direction.

    摘要翻译: 一种装置包括:图像载体; 使图像载体的表面均匀充电的充电器; 曝光单元,用于在所述图像载体上执行写入扫描; 显影单元,其包括携带包含调色剂的显影剂的显影剂载体,其被构造成对形成在所述图像载体上的静电潜像进行可见图像处理; 以及将经过该处理的调色剂图像转印到材料上的转印器。 如果直接在图像载体移动方向上的图像部分之前的非图像部分的长度Lg具有Lg≥&Pgr;·Ds /(Vs / Vp)的关系,其中Vp和Vs是图像载体的周向速度, 显影剂载体和Ds是显影剂载体的直径,抑制材料上的调色剂附着物从图像前端沿该方向被控制在预定长度。

    TONER FOR FORMING IMAGE, IMAGE FORMING METHOD, AND IMAGE FORMING APPARATUS
    5.
    发明申请
    TONER FOR FORMING IMAGE, IMAGE FORMING METHOD, AND IMAGE FORMING APPARATUS 审中-公开
    用于形成图像,图像形成方法和图像形成装置的调色剂

    公开(公告)号:US20130260302A1

    公开(公告)日:2013-10-03

    申请号:US13826742

    申请日:2013-03-14

    IPC分类号: G03G9/087

    摘要: A toner, including: crystalline resin; non-crystalline resin; and a composite resin, wherein the crystalline resin is crystalline polyester resin (A), the non-crystalline resin comprises: non-crystalline resin (B) containing chloroform insoluble matter; and non-crystalline resin (C) having a softening temperature (T½) lower than that of the non-crystalline resin (B) by 25° C. or more, an absolute value |Tgc−Tgb| of a difference between a glass transition temperature (Tgc) of non-crystalline resin (C) and a glass transition temperature (Tgb) of non-crystalline resin (B) is 10° C. or lower, wherein the composite resin is composite resin (D) containing a condensation polymerization resin unit and an addition polymerization resin unit, and the toner has a molecular weight distribution having a main peak in 1,000 to 10,000 and a half width of 15,000 or less, where the molecular weight distribution is obtained by gel permeation chromatography (GPC) of tetrahydrofuran (THF) soluble matter of the toner.

    摘要翻译: 调色剂,包括:结晶树脂; 非结晶树脂; 和复合树脂,其中所述结晶性树脂为结晶性聚酯树脂(A),所述非结晶性树脂包含:含有氯仿不溶物的非结晶性树脂(B) 和比非结晶性树脂(B)的软化温度(T 1/2)低25℃以上的非结晶性树脂(C)的绝对值| Tgc-Tgb | 非结晶性树脂(C)的玻璃化转变温度(Tgc)与非结晶性树脂(B)的玻璃化转变温度(Tgb)之差的差为10℃以下,其中复合树脂为复合树脂 (D),其含有缩聚树脂单元和加成聚合树脂单元,调色剂具有主峰分布在1000至10,000,半宽度为15,000或更小的分子量分布,其中分子量分布通过凝胶 四氢呋喃(THF)可溶物质的渗透色谱(GPC)。

    POWDER CONTAINER AND IMAGE FORMING APPARATUS INCORPORATING SAME
    6.
    发明申请
    POWDER CONTAINER AND IMAGE FORMING APPARATUS INCORPORATING SAME 有权
    粉末容器和成像装置的图像形成装置

    公开(公告)号:US20110305485A1

    公开(公告)日:2011-12-15

    申请号:US13157796

    申请日:2011-06-10

    IPC分类号: G03G15/08

    摘要: A powder container includes a cylindrical container body to contain a powder, having an opening in one end thereof, to convey the powder contained in the container body to the opening with rotation of the container body, and having a container-body projection provided on an outer circumferential surface of the container body; and a cylindrical holder, into which the end of the container body having the opening is inserted, to hold the container body rotatably, having a powder outlet through which the powder is discharged from the holder and a holder projection provided on an inner circumferential surface thereof. The container-body projection repetitively contacts and separates from the holder projection with rotation of the container body to vibrate the container body and the holder.

    摘要翻译: 一种粉末容器,包括一个容纳一个粉末的圆柱形容器体,在其一端具有一个开口,用容器主体的旋转将包含在容器主体中的粉末输送到开口上,并且具有设置在容器主体上的容器体突起 容器主体的外周面; 以及具有开口的容器主体的端部插入其中的筒状保持器,以可旋转地保持容器主体,具有粉末出口,粉末通过该出口从保持器排出;以及保持器突起,其设置在其内周面上 。 容器体突起随着容器主体的旋转重复地与保持器突起接触并分离,从而使容器主体和保持器振动。

    Carrier, supplemental developer, developer in image developer, developer feeding apparatus, image forming apparatus and process cartridge
    7.
    发明授权
    Carrier, supplemental developer, developer in image developer, developer feeding apparatus, image forming apparatus and process cartridge 有权
    载体,补充显影剂,图像显影剂中的显影剂,显影剂供给装置,成像装置和处理盒

    公开(公告)号:US08026032B2

    公开(公告)日:2011-09-27

    申请号:US11870613

    申请日:2007-10-11

    IPC分类号: G03G9/10

    摘要: A carrier for use in an image forming apparatus in which a toner and a carrier are fed to an image developer thereof and an extra developer including the toner and the carrier in the image developer is discharged therefrom, wherein at least one of the carrier fed to the image developer and a carrier readily contained therein includes a core material; and a coated film coating the core material, and wherein the coated film includes a binder resin and a particulate material having a ratio of an average particle diameter thereof to an average thickness of the coated film of from 0.01 to 1, and includes concavities and convexities having an average difference of elevation of from 0.02 to 3.0 μm.

    摘要翻译: 将其中将调色剂和载体供给到其图像显影剂的图像形成装置中使用的载体和包含调色剂和载体的额外的显影剂从图像显影剂中排出,其中至少一个载体供给 图像显影剂和容易包含的载体包括芯材料; 以及涂覆该芯材的涂膜,其中涂膜包括粘合剂树脂和其平均粒径与涂膜平均厚度之比为0.01至1的颗粒材料,并且包括凹凸 平均海拔差为0.02〜3.0μm。

    IMAGE FORMING APPARATUS
    8.
    发明申请
    IMAGE FORMING APPARATUS 有权
    图像形成装置

    公开(公告)号:US20090074450A1

    公开(公告)日:2009-03-19

    申请号:US12209607

    申请日:2008-09-12

    IPC分类号: G03G21/18 G03G15/08

    摘要: An image forming apparatus including an image bearing member; and a developing device including a developer bearing member, a developer containing portion, a developer supplying passage supplying the developer to the developer bearing member while feeding the developer in a direction, and a developer agitating passage feeding a mixture of the developer fed through the developer supplying passage without used for developing, and the developer used for developing, in the opposite direction. The developer supplying passage, and developer agitating passage are separated from each other except for at least both the end portions. The developer includes a toner and a carrier having a cover layer thereon, which includes a binder resin and a particulate material. The ratio of the volume average particle diameter of the particulate material to the average thickness of the resinous portion of the cover layer is greater than 1 and less than 10.

    摘要翻译: 一种图像形成装置,包括图像承载部件; 以及显影装置,其包括显影剂承载部件,显影剂容纳部分,在将显影剂沿方向供给显影剂的同时将显影剂供应到显影剂承载部件的显影剂供给通道,以及供给通过显影剂的显影剂的混合物的显影剂搅拌通道 不用于显影的供给通道和用于显影的显影剂在相反方向上。 显影剂供给通道和显影剂搅拌通道彼此分开,至少至少两个端部。 显影剂包括调色剂和其上具有覆盖层的载体,其包括粘合剂树脂和颗粒材料。 颗粒材料的体积平均粒径与覆盖层的树脂部分的平均厚度之比大于1且小于10。

    Developer for use in electrophotography, image forming method and process cartridge
    9.
    发明授权
    Developer for use in electrophotography, image forming method and process cartridge 有权
    用于电子照相,图像形成方法和处理盒的显影剂

    公开(公告)号:US07468233B2

    公开(公告)日:2008-12-23

    申请号:US11222775

    申请日:2005-09-12

    IPC分类号: G03G9/00

    摘要: Electro-photographic images having high picture quality and low carrier adhesion can be obtained using a two-component developer containing a carrier containing (A) a carrier containing a core containing a magnetic material, the core being coated with at least one resin layer; and (B) a toner; wherein the carrier has a weight average particle diameter Dw of 22-32 μm; wherein a content of carrier particles having a diameter smaller than 20 μm is 0-7% by weight based on the weight of the carrier; wherein a content of carrier particles having a diameter smaller than 36 μm is 90-100% by weight based on the weight of the carrier; wherein a weight average particle diameter Dw of the toner is 2-7 μm; and wherein a ratio Dw/Dn of the weight average particle diameter of the toner to the number average particle diameter of the toner is 1.00-1.25.

    摘要翻译: 可以使用含有载体​​的双组分显影剂获得具有高图像质量和低载体粘附性的电子照相图像,载体包含(A)含有含有磁性材料的芯的载体,芯部涂覆有至少一个树脂层; 和(B)调色剂; 载体的重均粒径Dw为22-32μm; 其中直径小于20μm的载体颗粒的含量基于载体的重量为0-7重量% 其中直径小于36μm的载体颗粒的含量基于载体的重量为90-100重量%; 其中调色剂的重均粒径Dw为2-7μm; 并且其中调色剂的重均粒径与调色剂的数均粒径的比Dw / Dn为1.00-1.25。