Image forming apparatus and process cartridge
    4.
    发明授权
    Image forming apparatus and process cartridge 有权
    成像设备和处理盒

    公开(公告)号:US09588479B2

    公开(公告)日:2017-03-07

    申请号:US15074333

    申请日:2016-03-18

    IPC分类号: G03G21/00 G03G9/00

    摘要: An image forming apparatus is provided which includes an image bearer, a charger to charge the image bearer, a latent image forming device to form an electrostatic latent image on the image bearer, a developing device to develop the electrostatic latent image with a toner, a transfer device to transfer the toner image onto a transfer medium, and a cleaning blade to remove residual toner particles remaining on the image bearer. The toner includes a binder resin and a release agent. The release agent has a longest length Lmax in the toner, which is equal to or greater than 1.1 times a maximum Feret diameter Df of the toner. The cleaning blade includes a strip-like elastic body blade having a contact part with the image bearer. The contact part includes a cured product of an ultraviolet curable composition including an acrylate or methacrylate compound having an alicyclic structure.

    摘要翻译: 提供一种图像形成装置,其包括图像载体,对图像载体进行充电的充电器,在图像载体上形成静电潜像的潜像形成装置,用调色剂显影静电潜像的显影装置, 转印装置将调色剂图像转印到转印介质上,以及清洁刮板以除去留在图像承载体上的剩余调色剂颗粒。 调色剂包括粘合剂树脂和脱模剂。 脱模剂在调色剂中具有最长的长度Lmax,其等于或大于调色剂的最大Feret直径Df的1.1倍。 清洁刮板包括具有与图像承载体的接触部分的条状弹性体刀片。 接触部分包括具有脂环结构的丙烯酸酯或甲基丙烯酸酯化合物的紫外线固化性组合物的固化物。

    Toner, developer, and image forming apparatus
    9.
    发明授权
    Toner, developer, and image forming apparatus 有权
    调色剂,显影剂和成像装置

    公开(公告)号:US08735040B2

    公开(公告)日:2014-05-27

    申请号:US13728060

    申请日:2012-12-27

    IPC分类号: G03G9/087

    摘要: To provide a toner including at least a binder resin and a colorant, wherein the binder resin has two glass transition temperatures Tg1 and Tg2 in a differential scanning calorimetry at a heating speed of 5° C./min, the glass transition temperature Tg1 is −20° C. to 20° C., and the glass transition temperature Tg2 is 35° C. to 65° C., wherein the binder resin comprises a polyester skeleton and a ring-containing skeleton molecule at ends thereof, and wherein the binder resin is obtained by block copolymerization of: a polyester skeleton A which includes a structural unit obtained by dehydration condensation of a hydroxycarboxylic acid in a repeating structure; and a skeleton B which does not include a structural unit obtained by dehydration condensation of a hydroxycarboxylic acid in a repeating structure.

    摘要翻译: 为了提供至少包含粘合剂树脂和着色剂的调色剂,其中粘合剂树脂在加热速度为5℃/分钟的差示扫描量热法中具有两个玻璃化转变温度Tg1和Tg2,玻璃化转变温度Tg1为 - 20℃至20℃,玻璃化转变温度Tg2为35℃至65℃,其中粘合剂树脂在其端部包含聚酯骨架和含环骨架分子,并且其中粘合剂 树脂通过以下方式的嵌段共聚获得:聚酯骨架A,其包含通过重复结构的羟基羧酸的脱水缩合获得的结构单元; 和骨架B,其不包含通过重复结构的羟基羧酸的脱水缩合得到的结构单元。

    Toner, developer, and image forming apparatus
    10.
    发明授权
    Toner, developer, and image forming apparatus 失效
    调色剂,显影剂和成像装置

    公开(公告)号:US08685604B2

    公开(公告)日:2014-04-01

    申请号:US13609627

    申请日:2012-09-11

    IPC分类号: G03G9/087 G03G9/08

    摘要: A toner including a colorant and a first binder resin is provided. The first binder resin has first and second glass transition points at a temperature Tg1 of −20 to 20° C. and a temperature Tg2 of 35 to 65° C., respectively, measured by a differential scanning calorimeter at a heating rate of 5° C./min. A ratio h1/h2 of a baseline displacement h1 observed in the first glass transition point to a baseline displacement h2 observed in the second glass transition point is less than 1.0. The first binder resin has a structure in which a first phase is dispersed in a second phase. The first and second phases consist of portions having larger and smaller phase difference values, respectively, than an intermediate value between maximum and minimum phase difference values in a binarized phase image obtained by an atomic force microscope with a tapping mode method.

    摘要翻译: 提供了包括着色剂和第一粘合剂树脂的调色剂。 第一粘合剂树脂具有在温度Tg1为-20〜20℃,温差Tg2为35〜65℃的第一和第二玻璃化转变点,差示扫描量热计以5℃的加热速度 C./min。 在第一玻璃化转变点中观察到的基线位移h1与在第二玻璃化转变点中观察到的基线位移h2的比率h1 / h2小于1.0。 第一粘合剂树脂具有第一相分散在第二相中的结构。 第一和第二相分别具有比通过原子力显微镜使用轻敲模式法获得的二值化相位图像中的最大和最小相位差值之间的中间值具有更大和更小的相位差值的部分。