Sheet feeding device and image forming apparatus incorporating same
    1.
    发明授权
    Sheet feeding device and image forming apparatus incorporating same 有权
    纸张馈送装置和包含其的图像形成装置

    公开(公告)号:US08628074B2

    公开(公告)日:2014-01-14

    申请号:US13587447

    申请日:2012-08-16

    IPC分类号: B65H3/16

    摘要: A sheet feeding device that can be incorporated in an image forming apparatus includes a sheet feeder including a belt unit including an attraction belt facing a sheet stack and first and second tension rollers to keep the attraction belt taut, and a side holder to rotatably support the belt unit about the first tension roller that serves as a pivot of the sheet feeder being disposed upstream from the second tension roller in the sheet conveyance direction, a contact and separation drive unit to swing the sheet feeder to make the attraction belt contact with and separate from the sheet stack, and a swing range adjuster to adjust a range of swing of the belt unit with respect to the side holder between contact and separation of the attraction belt with respect to the sheet stack, according to a predetermined condition.

    摘要翻译: 可以结合在图像形成装置中的片材进给装置包括:片材进给器,其包括带单元,该带单元包括面向纸叠的吸引带;以及第一和第二张力辊,用于保持吸引带张紧;以及侧保持器, 带状单元围绕作为片材进给器的枢轴的第一张紧辊设置在纸张输送方向上设置在第二张紧辊的上游的位置;接触和分离驱动单元,用于使供纸器摆动以使吸引带接触并分离 以及摆动范围调节器,以根据预定条件来调节带单元相对于侧支架在吸引带相对于纸叠的接触和分离之间的摆动范围。

    Image forming apparatus, optical writing device, and optical writing method
    3.
    发明申请
    Image forming apparatus, optical writing device, and optical writing method 有权
    图像形成装置,光学写入装置和光学写入方法

    公开(公告)号:US20090066780A1

    公开(公告)日:2009-03-12

    申请号:US12230987

    申请日:2008-09-09

    IPC分类号: B41J2/47

    摘要: An image forming apparatus includes a plurality of image carriers and an optical writing device including light sources that emit light beams of different wavelengths, a deflector that deflects the light beams emitted from the light sources and synthesized on an identical axis in a sub-scanning direction, a first beam separator, a second beam separator, a first imaging device, and a second imaging device. The first beam separator and the second beam separator are located between the first imaging device and the second imaging device and transmit or reflect the light beams according to travel directions or wavelengths thereof. One of the targets is scanned with the light beam transmitted through the second beam separator. Another target is scanned with the light beam reflected by the second and first beam separators. The first and second imaging devices narrow the beams in the main scanning direction and the sub-scanning direction, respectively.

    摘要翻译: 图像形成装置包括多个图像载体和包括发射不同波长的光束的光源的光学写入装置,偏转器,其使从光源射出的光束在副扫描方向上在同一轴上合成 第一光束分离器,第二光束分离器,第一成像装置和第二成像装置。 第一光束分离器和第二光束分离器位于第一成像装置和第二成像装置之间,并根据其行进方向或波长透射或反射光束。 用通过第二光束分离器传输的光束扫描其中一个目标。 用第二和第一光束分离器反射的光束扫描另一个目标。 第一和第二成像装置分别在主扫描方向和副扫描方向上使光束变窄。

    Sheet feeding device and image forming apparatus incorporating same
    6.
    发明授权
    Sheet feeding device and image forming apparatus incorporating same 有权
    纸张馈送装置和包含其的图像形成装置

    公开(公告)号:US08267394B2

    公开(公告)日:2012-09-18

    申请号:US13137400

    申请日:2011-08-11

    IPC分类号: B65H3/16

    摘要: A sheet feeding device that can be incorporated in an image forming apparatus includes a sheet feeder including a belt unit including an attraction belt facing a sheet stack and first and second tension rollers to keep the attraction belt taut, and a side holder to rotatably support the belt unit about the first tension roller that serves as a pivot of the sheet feeder being disposed upstream from the second tension roller in the sheet conveyance direction, a contact and separation drive unit to swing the sheet feeder to make the attraction belt contact with and separate from the sheet stack, and a swing range adjuster to adjust a range of swing of the belt unit with respect to the side holder between contact and separation of the attraction belt with respect to the sheet stack, according to a predetermined condition.

    摘要翻译: 可以结合在图像形成装置中的片材进给装置包括:片材进给器,其包括带单元,该带单元包括面向纸叠的吸引带;以及第一和第二张力辊,用于保持吸引带张紧;以及侧保持器, 带状单元围绕作为片材进给器的枢轴的第一张紧辊设置在纸张输送方向上设置在第二张紧辊的上游的位置;接触和分离驱动单元,用于使供纸器摆动以使吸引带接触并分离 以及摆动范围调节器,以根据预定条件来调节带单元相对于侧支架在吸引带相对于纸叠的接触和分离之间的摆动范围。

    Image forming apparatus
    7.
    发明申请
    Image forming apparatus 有权
    图像形成装置

    公开(公告)号:US20110062655A1

    公开(公告)日:2011-03-17

    申请号:US12805911

    申请日:2010-08-24

    IPC分类号: B65H29/00 B65H1/00

    摘要: A sheet separating and feeding unit incorporable in an image forming apparatus includes an image forming device, a sheet container, a sheet feeding unit including an endless, dielectric belt and an electric potential pattern forming unit, a belt supporting mechanism including a first supporting roller and a second supporting roller, and a moving unit. The first supporting roller rotates to rotatably move the second supporting roller between a sheet attracting position and a sheet feeding position so that the flat portion of the dielectric belt moves between the sheet contact position and the sheet pick-up position.

    摘要翻译: 可以形成在图像形成装置中的片材分离和供给单元包括图像形成装置,片材容器,包括环形,介电带和电位图案形成单元的片材进给单元,带支撑机构,包括第一支撑辊和 第二支撑辊和移动单元。 第一支撑辊旋转以将第二支撑辊可旋转地移动在片材吸引位置和片材进给位置之间,使得介质带的平坦部分在片材接触位置和片材拾取位置之间移动。

    Sheet feeding device and image forming apparatus
    8.
    发明申请
    Sheet feeding device and image forming apparatus 审中-公开
    送纸装置和成像装置

    公开(公告)号:US20100032891A1

    公开(公告)日:2010-02-11

    申请号:US12461185

    申请日:2009-08-04

    IPC分类号: B65H3/18 B65H3/04

    摘要: A sheet feeding device including a belt including a dielectric material seamlessly wound about rollers and disposed opposite a top surface of a stack of multiple sheets placed on a sheet storage stand to attract a sheet from the stack of multiple sheets and convey the sheet, and a charger to form a predetermined charge pattern on a surface of the belt. A shaft of one of the rollers provided downstream from the other roller in a direction of sheet feed serves as a pivot of the belt about which the belt swings, and the belt swings around the pivot such that the surface of the belt facing the top surface of the stack of multiple sheets and a surface of the sheet storage stand facing the surface of the belt are substantially parallel to each other.

    摘要翻译: 一种送纸装置,包括:带子,包括无缝地缠绕在辊上的电介质材料,并且设置在放置在纸张收纳架上的多张纸的堆叠的顶面的顶面上,以从多张纸的堆叠中吸引纸张并输送纸张; 充电器以在带的表面上形成预定的充电图案。 设置在另一个辊的下游的一个辊沿着纸张进给方向的轴用作皮带摆动的带的枢轴,并且带围绕枢轴摆动,使得带的表面面向顶表面 并且片材储存架的面向带的表面的表面基本上彼此平行。

    Optical writing device and image forming apparatus
    9.
    发明申请
    Optical writing device and image forming apparatus 有权
    光写入装置和图像形成装置

    公开(公告)号:US20090022520A1

    公开(公告)日:2009-01-22

    申请号:US12219174

    申请日:2008-07-17

    IPC分类号: G03G15/04

    摘要: An optical writing device that writes electrostatic latent images on an image carrier by irradiating and scanning the image carrier with an optical beam includes an optical element, a support housing configured to support members constituting the optical writing device, a pair of optical-element holding members opposing each other in a principal scanning direction and arranged in the support housing, and a displacing member configured to displace at least one of the pair of optical-element holding members relatively to the support housing on a plane perpendicular to the principal scanning direction. The optical-element holding member is made of a material having a coefficient of linear expansion smaller than that of the support housing.

    摘要翻译: 通过用光束照射和扫描图像载体将静电潜像写入图像载体的光学写入装置包括光学元件,构造成支撑构成光学写入装置的构件的支撑壳体,一对光学元件保持构件 在主扫描方向上彼此相对并且布置在支撑壳体中;以及位移构件,构造成在垂直于主扫描方向的平面上相对于支撑壳体移动一对光学元件保持构件中的至少一个。 光学元件保持构件由线性膨胀系数小于支撑壳体的材料制成。

    Sheet Feeding Device and Image Forming Apparatus Incorporating Same
    10.
    发明申请
    Sheet Feeding Device and Image Forming Apparatus Incorporating Same 有权
    送纸装置及其成像装置

    公开(公告)号:US20120306146A1

    公开(公告)日:2012-12-06

    申请号:US13587447

    申请日:2012-08-16

    IPC分类号: B65H3/04 B65H7/20

    摘要: A sheet feeding device that can be incorporated in an image forming apparatus includes a sheet feeder including a belt unit including an attraction belt facing a sheet stack and first and second tension rollers to keep the attraction belt taut, and a side holder to rotatably support the belt unit about the first tension roller that serves as a pivot of the sheet feeder being disposed upstream from the second tension roller in the sheet conveyance direction, a contact and separation drive unit to swing the sheet feeder to make the attraction belt contact with and separate from the sheet stack, and a swing range adjuster to adjust a range of swing of the belt unit with respect to the side holder between contact and separation of the attraction belt with respect to the sheet stack, according to a predetermined condition.

    摘要翻译: 可以结合在图像形成装置中的片材进给装置包括:片材进给器,其包括带单元,该带单元包括面向纸叠的吸引带;以及第一和第二张力辊,用于保持吸引带张紧;以及侧保持器, 带状单元围绕作为片材进给器的枢轴的第一张紧辊设置在纸张输送方向上设置在第二张紧辊的上游的位置;接触和分离驱动单元,用于使供纸器摆动以使吸引带接触并分离 以及摆动范围调节器,以根据预定条件来调节带单元相对于侧支架在吸引带相对于纸叠的接触和分离之间的摆动范围。