Transfer unit and image forming apparatus
    62.
    发明授权
    Transfer unit and image forming apparatus 有权
    转印单元和图像形成装置

    公开(公告)号:US07801471B2

    公开(公告)日:2010-09-21

    申请号:US12358083

    申请日:2009-01-22

    IPC分类号: G03G15/01

    摘要: Toner images of different colors are superimposed on a transfer belt of an endless type from image carriers, to form a full color toner image. A tension roller maintains a tension of the transfer belt. A driving roller drives the transfer belt. A biasing unit applies the tension to the tension roller. A holding unit holds the tension roller. An image reading sensor detects the toner image formed on the transfer belt. The image reading sensor is disposed in the holding unit, in an opposite position to the tension roller with respect to the transfer belt.

    摘要翻译: 不同颜色的调色剂图像从图像载体叠加在环形类型的转印带上,以形成全色调色剂图像。 张力辊保持转印带的张力。 驱动辊驱动转印带。 偏压单元将张力施加到张紧辊。 保持单元保持张紧辊。 图像读取传感器检测形成在转印带上的调色剂图像。 图像读取传感器相对于转印带设置在与张紧辊相反的位置处于保持单元中。

    Heating device, fixing device, and image forming apparatus

    公开(公告)号:US11934126B2

    公开(公告)日:2024-03-19

    申请号:US17963195

    申请日:2022-10-11

    IPC分类号: G03G15/20

    CPC分类号: G03G15/2053 G03G2215/2003

    摘要: A heating device includes a first rotator, a heater including a base and a heat generator, and a second rotator contacting the first rotator. The heat generator adjacent to the base defines a heat generation area having one edge close to one edge of the base in a longitudinal direction of the base. A length between the one edge of the base and the one edge of the heat generation area is longer than a length between the other edge of the base and the other edge of the heat generation area. The second rotator has one edge close to the one edge of the heat generation area. A length between the one edge of the second rotator and the one edge of the heat generation area is shorter than a length between the other edge of the second rotator and the other edge of the heat generation area.

    Image forming apparatus
    67.
    发明授权

    公开(公告)号:US11454917B2

    公开(公告)日:2022-09-27

    申请号:US17336450

    申请日:2021-06-02

    IPC分类号: G03G21/00 G03G15/20

    摘要: An image forming apparatus includes an image bearer, a protectant applicator, a heating device, and a protectant biasing member. The protectant applicator applies protectant to the image bearer. The heating device includes a heater including a base, a heat generator, an electrode, and a conductor coupling the heat generator to the electrode. The heater has a first position and a second position having a higher temperature than the first position. These are symmetrical to each other with respect to a longitudinal center of a heat generation area of the heater. The protectant biasing member biases the protectant to the protectant applicator with a first biasing force at a position closer to the first position than to the second position and with a second biasing force larger than the first biasing force at a position closer to the second position than to the first, and the protectant contacts the protectant applicator.

    Heating device with a guide having convex and recess portions and a connector with a conduction terminal

    公开(公告)号:US10928767B2

    公开(公告)日:2021-02-23

    申请号:US16574314

    申请日:2019-09-18

    IPC分类号: G03G15/00 G03G15/20

    摘要: A heating device includes a heater, a holder, a connector, and a guide pair. The heater includes an electrode through which power is conducted. The holder is configured to hold the heater. The connector includes a conduction terminal and an engagement portion. The conduction terminal is configured to contact the electrode. The engagement portion is configured to be engaged with the holder. The connector is attachable to the holder to engage the engagement portion with the holder and contact the conduction terminal with the electrode. The guide pair includes a convex portion and a recess. The convex portion is disposed in one of the holder and the connector. The recess is disposed in another one of the holder and the connector. The guide pair is configured to guide the connector in an attaching direction of the connector to attach the connector to the holder.

    Fixing device and image forming apparatus incorporating same

    公开(公告)号:US10168649B2

    公开(公告)日:2019-01-01

    申请号:US15635564

    申请日:2017-06-28

    申请人: Tomoya Adachi

    发明人: Tomoya Adachi

    IPC分类号: G03G15/20

    摘要: A fixing device includes a nip formation pad, an endless fixing rotator, a pressure rotator, and a lubricant transfer portion. The endless fixing rotator has an inner circumferential surface adhered with a lubricant. The pressure rotator is pressed against the nip formation pad via the fixing rotator to form a nip through which an image is fixed on a recording medium. The lubricant transfer portion transfers the lubricant toward a center side in a width direction perpendicular to a rotational direction of the fixing rotator.