Separation device, fixing device, and image forming apparatus

    公开(公告)号:US10042294B2

    公开(公告)日:2018-08-07

    申请号:US15410260

    申请日:2017-01-19

    IPC分类号: G03G15/20

    摘要: A separation device includes a separator that separates a recording medium from a rotator and a plurality of recesses disposed on a conveyance path side face of the separator over which the recording medium is conveyed in a recess span in a recording medium conveyance direction and at least in a conveyance span where the recording medium is conveyed. The plurality of recesses includes a first recess extending in a first extension line that is oblique relative to the recording medium conveyance direction and a second recess being adjacent to the first recess in a direction perpendicular to the recording medium conveyance direction. The second recess extends in a second extension line that is oblique relative to the recording medium conveyance direction and overlaps the first extension line of the first recess in the direction perpendicular to the recording medium conveyance direction to define an overlap span.

    Fixing device and image forming apparatus
    6.
    发明授权
    Fixing device and image forming apparatus 有权
    固定装置和成像装置

    公开(公告)号:US09568864B2

    公开(公告)日:2017-02-14

    申请号:US14993565

    申请日:2016-01-12

    IPC分类号: G03G15/20

    CPC分类号: G03G15/2025

    摘要: A fixing device includes a fixing rotator, a pressing rotator, an oil applicator, a first adjuster, a surface modifier, a second adjuster, and a processor. The fixing rotator contacts a recording medium bearing a toner image. The pressing rotator forms a fixing nip with the fixing rotator. The oil applicator is pressed against at least one of applied members of the fixing rotator and pressing rotator. The first adjuster adjusts contact/separation of the oil applicator with respect to the applied member. The surface modifier contacts the fixing rotator to modify a surface thereof. The second adjuster adjusts contact/separation of the surface modifier with respect to the fixing rotator. The processor allows the surface modifier to modify the fixing rotator surface after the oil applicator contacts the applied member, and the oil applicator to separate from the applied member after the surface modifier is separated from the fixing rotator.

    摘要翻译: 定影装置包括固定旋转器,按压旋转器,油涂布器,第一调节器,表面改性剂,第二调节器和处理器。 定影旋转器接触带有调色剂图像的记录介质。 按压旋转体与定影旋转体形成定影辊隙。 油涂敷器被压在固定旋转器和按压旋转器的施加部件中的至少一个上。 第一调节器调节涂油器相对于所施加的构件的接触/分离。 表面改性剂接触固定旋转体以改变其表面。 第二调节器调节表面改性剂相对于固定旋转器的接触/分离。 处理器允许表面改性剂在涂油器接触所施加的构件之后修改固定旋转体表面,并且在表面改性剂与固定旋转体分离之后,油涂布器与施加的构件分离。

    Fixing device and image forming apparatus incorporating same
    7.
    发明授权
    Fixing device and image forming apparatus incorporating same 有权
    固定装置和包含其的图像形成装置

    公开(公告)号:US08862038B2

    公开(公告)日:2014-10-14

    申请号:US13206966

    申请日:2011-08-10

    IPC分类号: G03G15/20

    CPC分类号: G03G15/2028 G03G2221/1645

    摘要: A fixing device includes a rotary fuser member, a rotary pressure member, a first media stripper, and a second media stripper. The rotary fuser member is subjected to heating. The rotary pressure member is pressed against the fuser member to form a fixing nip therebetween through which a recording medium is passed in a media conveyance direction under heat and pressure as the fuser and pressure members rotate together. The first media stripper includes at least one pneumatic nozzle disposed adjacent to the fuser member to direct compressed gas toward the fixing nip along the fuser member for stripping the recording medium from the fuser member. The second media stripper includes at least one contact finger disposed in contact with the pressure member to slide against the pressure member during rotation for stripping the recording medium from the pressure member.

    摘要翻译: 定影装置包括旋转定影器构件,旋转压力构件,第一介质剥离器和第二介质剥离器。 旋转定影部件经受加热。 旋转压力构件被压靠在定影构件上,以在它们之间形成定影夹持器,当定影器和压力构件一起旋转时,记录介质在介质输送方向上在加热和压力下通过。 第一介质剥离器包括至少一个与定影器构件相邻设置的气动喷嘴,以沿着定影器构件将压缩气体引向定影辊隙,用于从定影器构件剥离记录介质。 第二介质剥离器包括至少一个与压力构件接触的接触指状件,以在旋转期间抵靠压力构件滑动,以从压力构件剥离记录介质。

    Image forming apparatus
    9.
    发明授权
    Image forming apparatus 有权
    图像形成装置

    公开(公告)号:US08483586B2

    公开(公告)日:2013-07-09

    申请号:US12779313

    申请日:2010-05-13

    IPC分类号: G03G13/05 G03G13/22

    摘要: An image forming apparatus includes a charging unit, an image carrier, an exposing unit, a developing unit, a transfer belt on which the transfer material is placed, a fixing unit that fixes the toner image transferred onto the transfer material, a cleaning unit that cleans up toner attached to the fixing unit, and a control unit that controls printing of the image on the transfer material. The control unit causes the exposing unit to expose a latent image of a first image having an image-area ratio equal to or larger than a predetermined ratio, causes the developing unit to form a toner image of the latent image and to transfer the toner image to the transfer material, and causes the fixing unit to fix the toner image transferred by the transfer belt to the transfer material.

    摘要翻译: 图像形成装置包括充电单元,图像载体,曝光单元,显影单元,其上放置转印材料的转印带,固定转印到转印材料上的调色剂图像的定影单元,清洁单元, 清理附着到定影单元的调色剂,以及控制单元,其控制转印材料上的图像的印刷。 控制单元使曝光单元暴露具有等于或大于预定比率的图像面积比率的第一图像的潜像,使得显影单元形成潜像的调色剂图像并转印调色剂图像 并且使定影单元将由转印带转印的调色剂图像固定到转印材料上。

    FIXING DEVICE AND IMAGE FORMING APPARATUS
    10.
    发明申请
    FIXING DEVICE AND IMAGE FORMING APPARATUS 有权
    固定装置和图像形成装置

    公开(公告)号:US20130142551A1

    公开(公告)日:2013-06-06

    申请号:US13671082

    申请日:2012-11-07

    IPC分类号: G03G15/20

    CPC分类号: G03G15/2053

    摘要: A fixing device fixes a toner image on a recording medium by heating the recording medium, with a heating area and a non-heating area selected in accordance with a magnetic flux and a repulsive magnetic flux. The fixing device includes a heat generating layer, an exciting coil, and a demagnetizing member. The heat generating layer generates heat. The exciting coil generates the magnetic flux, and thereby inductively heats the heat generating layer. The demagnetizing member faces the heat generating layer in the non-heating area. The demagnetizing member generates the repulsive magnetic flux against the magnetic flux generated by the exciting coil, and thereby demagnetizes the magnetic flux and suppresses the heating. Further, the demagnetizing member has a demagnetization effect different between at least a portion of the non-heating area adjacent to the heating area and the remaining portion of the non-heating area.

    摘要翻译: 定影装置通过加热记录介质,根据磁通量和排斥磁通量选择加热区域和非加热区域,将调色剂图像定影在记录介质上。 固定装置包括发热层,励磁线圈和退磁构件。 发热层产生热量。 励磁线圈产生磁通量,从而感应加热发热层。 退磁构件面向非加热区域中的发热层。 退磁构件产生抵抗由励磁线圈产生的磁通的斥力磁通,从而使磁通消磁,并抑制加热。 此外,退磁构件在与加热区域相邻的非加热区域的至少一部分与非加热区域的剩余部分之间具有不同的退磁效果。