Image heating apparatus and conveying roller for use therein
    1.
    发明申请
    Image heating apparatus and conveying roller for use therein 有权
    图像加热装置和用于其中的输送辊

    公开(公告)号:US20050244200A1

    公开(公告)日:2005-11-03

    申请号:US11091638

    申请日:2005-03-29

    IPC分类号: G03G15/20 B65H5/06 G03G15/00

    摘要: An image heating apparatus for heating an image formed on a recording material, the apparatus including a conveying roller for conveying a recording material, the conveying roller including a metal core and an elastic layer provided outside the metal core, wherein the metal core has, in a central portion in the longitudinal direction thereof, a straight shape area having a substantially uniform diameter along the longitudinal direction and tapered shape areas, on both sides of the straight shape area, in which a diameter gradually decreases toward ends in the longitudinal direction, and wherein the elastic layer has, in a central portion in the longitudinal direction thereof, a straight shape area having a substantially uniform diameter along the longitudinal direction and inverted crown shape areas, on both sides of the straight shape area, in which a diameter gradually increases toward ends in the longitudinal direction. This configuration allows to prevent defects in image heating while suppressing creases in the recording material.

    摘要翻译: 一种用于加热形成在记录材料上的图像的图像加热装置,所述装置包括用于传送记录材料的输送辊,所述输送辊包括金属芯和设置在金属芯外侧的弹性层,其中金属芯具有 在其纵向方向上的中心部分,直线形状区域在直线形状区域的两侧沿着纵向方向具有大致均匀的直径和锥形形状区域,其中直径朝向纵向方向的端部逐渐减小,以及 其特征在于,所述弹性层在其长度方向的中央部具有在所述直线形状区域的两侧具有直径逐渐增加的直线形状区域,所述直线形状区域沿着所述长度方向具有大致均匀的直径, 朝向长度方向的端部。 这种构造允许在抑制记录材料中的折痕的同时防止图像加热中的缺陷。

    Image heating apparatus with flexible sleeve and flange members in contact with the sleeve
    3.
    发明授权
    Image heating apparatus with flexible sleeve and flange members in contact with the sleeve 有权
    图像加热装置具有柔性套筒和与套筒接触的法兰构件

    公开(公告)号:US06944420B2

    公开(公告)日:2005-09-13

    申请号:US10419844

    申请日:2003-04-22

    IPC分类号: G03G15/00 G03G15/20

    CPC分类号: G03G15/20

    摘要: An image heating apparatus has a heating member, a flexible sleeve, a guide member, a flange member, and a pressure member forming a nip part to nip and convey the heating member and the recording material through the sleeve. In this structure, in a recording material movement direction, a sliding-rubbing part of the flange member on a downstream side of the nip part has a shape to project the sleeve toward the downstream side. Alternately, the guide member may have a plurality of ribs on both an upstream side and downstream side of the nip.

    摘要翻译: 图像加热装置具有加热构件,柔性套筒,引导构件,凸缘构件和形成夹持部的压力构件,以通过套筒夹持和传送加热构件和记录材料。 在这种结构中,在记录材料移动方向上,凸缘部件在夹持部的下游侧的滑动摩擦部具有使套筒向下游侧突出的形状。 或者,引导构件可以在压区的上游侧和下游侧具有多个肋。

    Image forming apparatus and heat fixing apparatus
    7.
    发明授权
    Image forming apparatus and heat fixing apparatus 失效
    图像形成装置和热定影装置

    公开(公告)号:US06920293B2

    公开(公告)日:2005-07-19

    申请号:US10698416

    申请日:2003-11-03

    IPC分类号: G03G15/20

    摘要: A heat fixing apparatus for fixing an unfixed image formed on a recording material is provided with a discharge roller coming into contact with a recording material and positioned at a downstream side of a fixing nip in a conveying direction of the recording material, and, for improving a fixed image tailing phenomenon, applies a bias voltage to at least either of a fixing film and the discharge roller. In case the recording materials are fed in continuous manner, a bias voltage while the recording material is passed through the fixing nip is elevated or lowered according to a number of heating of the recording materials. In this manner it is possible to reduce deposition of toner, paper powder, dust etc. to the surface of the fixing member, generated particularly in case of a continuous supply of the recording materials under a high bias voltage, thereby preventing generation of an image defect such as blobs resulting from a toner contamination.

    摘要翻译: 用于固定形成在记录材料上的未定影图像的热定影装置设置有与记录材料接触并定位在记录材料的传送方向上的定影辊隙的下游侧的排出辊,并且为了改善 固定图像拖尾现象,将偏置电压施加到定影膜和排出辊中的至少一个。 在记录材料以连续方式进给的情况下,记录材料通过定影辊隙的偏置电压根据记录材料的加热次数而升高或降低。 以这种方式,可以减少调色剂,纸粉,灰尘等沉积到定影部件的表面,特别是在高偏压下连续供应记录材料的情况下产生,从而防止产生图像 缺陷,例如由调色剂污染导致的斑点。

    Image heating apparatus and conveying roller for use therein
    9.
    发明授权
    Image heating apparatus and conveying roller for use therein 有权
    图像加热装置和用于其中的输送辊

    公开(公告)号:US07251447B2

    公开(公告)日:2007-07-31

    申请号:US11091638

    申请日:2005-03-29

    摘要: An image heating apparatus for heating an image formed on a recording material, the apparatus including a conveying roller for conveying a recording material, the conveying roller including a metal core and an elastic layer provided outside the metal core, wherein the metal core has, in a central portion in the longitudinal direction thereof, a straight shape area having a substantially uniform diameter along the longitudinal direction and tapered shape areas, on both sides of the straight shape area, in which a diameter gradually decreases toward ends in the longitudinal direction, and wherein the elastic layer has, in a central portion in the longitudinal direction thereof, a straight shape area having a substantially uniform diameter along the longitudinal direction and inverted crown shape areas, on both sides of the straight shape area, in which a diameter gradually increases toward ends in the longitudinal direction. This configuration allows to prevent defects in image heating while suppressing creases in the recording material.

    摘要翻译: 一种用于加热形成在记录材料上的图像的图像加热装置,所述装置包括用于传送记录材料的输送辊,所述输送辊包括金属芯和设置在金属芯外侧的弹性层,其中金属芯具有 在其纵向方向上的中心部分,直线形状区域在直线形状区域的两侧沿着纵向方向具有大致均匀的直径和锥形形状区域,其中直径朝向纵向方向的端部逐渐减小,以及 其特征在于,所述弹性层在其长度方向的中央部具有在所述直线形状区域的两侧具有直径逐渐增加的直线形状区域,所述直线形状区域沿着所述长度方向具有大致均匀的直径, 朝向长度方向的端部。 这种构造允许在抑制记录材料中的折痕的同时防止图像加热中的缺陷。

    Heat fixing apparatus
    10.
    发明授权
    Heat fixing apparatus 失效
    定热装置

    公开(公告)号:US06915099B2

    公开(公告)日:2005-07-05

    申请号:US10646865

    申请日:2003-08-25

    IPC分类号: G03G15/20

    CPC分类号: G03G15/2064

    摘要: A heat fixing apparatus, in which a recording material, with an unfixed image passes through a fixing nip formed by a fixing member and a pressurizing member, has an electro-conductive member to be in contact with the recording material disposed downstream of the fixing nip with respect to the recording material conveying direction, wherein a bias voltage is applied to at least one of the fixing member and the electro-conductive member. As recording materials are consecutively fed, the bias voltage applied while the recording materials pass through the fixing nip portion is gradually decreased in accordance with the number of heated recording materials. Thus, smeared image trailing edge upon fixing is prevented from occurring, and the amount of toner adhering to the surface of the fixing member or the surface of the pressurizing member is reduced, so that image errors such as toner contamination are prevented from occurring.

    摘要翻译: 一种定影装置,其中具有未定影图像的记录材料通过由固定构件和加压构件形成的定影辊隙,具有与设置在定影辊隙下游的记录材料接触的导电构件 相对于记录材料传送方向,其中偏置电压施加到固定部件和导电部件中的至少一个。 随着记录材料被连续供给,记录材料通过定影夹持部分时施加的偏置电压根据加热的记录材料的数量逐渐减少。 因此,防止了在固定时产生的模糊后缘,并且粘附到固定构件的表面或加压构件的表面上的调色剂的量减少,从而防止发生诸如调色剂污染的图像错误。