Sheet conveying device and image forming apparatus with the same
    1.
    发明授权
    Sheet conveying device and image forming apparatus with the same 有权
    片材输送装置及其成像装置

    公开(公告)号:US08800987B2

    公开(公告)日:2014-08-12

    申请号:US13813994

    申请日:2011-07-14

    Abstract: A sheet conveying device (30) includes a plurality of first conveyance rollers (31) and a plurality of second conveyance rollers (32). The sheet conveying device (30) includes stiffening rollers (34). The stiffening rollers (34) are disposed coaxially with at least one conveyance rollers (32) among the first and second conveyance rollers (31) and (32), and have diameters larger than diameters of the conveyance rollers (32). The stiffening rollers (34) includes first stiffening rollers (34a), which apply conveying forces to a sheet (P), and second stiffening rollers (34b), which apply smaller conveying forces to the sheet (P) than the conveying forces to the sheet (P) in the first stiffening rollers (34a).

    Abstract translation: 片材输送装置(30)包括多个第一输送辊(31)和多个第二输送辊(32)。 片材输送装置(30)包括加强辊(34)。 加强辊(34)与第一输送辊(31)和第二输送辊(32)中的至少一个输送辊(32)同轴配置,并且具有比输送辊(32)的直径大的直径。 加强辊(34)包括向片材(P)施加输送力的第一加强辊(34a)和对片材(P)施加较小传送力的第二加强辊(34b) 在第一加强辊(34a)中的片材(P)。

    PAPER FEEDER AND IMAGE FORMING APPARATUS INCLUDING THE SAME
    2.
    发明申请
    PAPER FEEDER AND IMAGE FORMING APPARATUS INCLUDING THE SAME 有权
    纸张进纸器和图像形成装置,包括它们

    公开(公告)号:US20120299236A1

    公开(公告)日:2012-11-29

    申请号:US13472678

    申请日:2012-05-16

    Abstract: In a paper feeder, an air hole that allows air to pass through is formed on a paper transport belt, a fan for breathing and exhausting air and an exhaust duct having an opening for exhausting air. Air is exhausted from the fan through the exhaust duct, the fan and an air intake duct for breathing air are connected to each other, and air is breathed from the air hole through the air intake duct towards the fan. This paper feeder includes: an air state detection unit for detecting at least one of an air pressure and an air flow rate in the air intake duct; an opening and closing unit provided to the air intake duct for opening and closing the opening; and a control unit for opening and closing the opening based on a result of detection by the air state detection unit.

    Abstract translation: 在供纸器中,在纸张传送带,用于呼吸和排出空气的风扇和具有用于排出空气的开口的排气管道上形成允许空气通过的空气孔。 空气从风扇通过排气管排出,风扇和用于呼吸空气的进气管彼此连接,并且空气从空气孔通过进气管朝风扇呼吸。 该送纸器包括:空气状态检测单元,用于检测进气管道中的空气压力和空气流量中的至少一个; 设置在所述进气管道上以打开和关闭所述开口的打开和关闭单元; 以及基于由空气状态检测单元的检测结果来打开和关闭开口的控制单元。

    Paper feeding device and image forming apparatus
    4.
    发明授权
    Paper feeding device and image forming apparatus 有权
    送纸装置和成像装置

    公开(公告)号:US07731171B2

    公开(公告)日:2010-06-08

    申请号:US12406245

    申请日:2009-03-18

    CPC classification number: G03G15/6511 G03G2215/004

    Abstract: As one embodiment, a paper feeding device is provided with a pickup roller for pulling out an uppermost positioned sheet of loaded sheets, and a paper feeding roller for transporting the sheet pulled out by the pickup roller. Spanning between the pickup roller and the paper feeding roller, a roller belt is provided that is capable of moving relatively in a circumferential direction with respect to an outer circumferential surface of the paper feeding roller. The roller belt obtains rotational drive from the pickup roller.

    Abstract translation: 作为一个实施例,送纸装置设置有用于拉出最上位纸张的拾取辊,以及用于传送由拾取辊拉出的纸张的供纸辊。 在拾取辊和给纸辊之间跨越,设置有能够相对于供纸辊的外圆周表面沿圆周方向相对移动的辊带。 辊带从拾取辊获得旋转驱动。

    FIXING DEVICE AND IMAGE FORMING APPARATUS
    6.
    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:US20090208261A1

    公开(公告)日:2009-08-20

    申请号:US12372004

    申请日:2009-02-17

    CPC classification number: G03G15/2064 G03G2221/1639 G03G2221/1657

    Abstract: In a fixing device, a heat roller and a fixing gear for rotating the heat roller are arranged concentrically, and coupled to each other by inserting a key formed in the fixing gear into a keyway formed in the heat roller. The keyway is designed such that the key is allowed to move along a direction in which the heat roller is rotated. For example, the keyway is formed by notching a free end of a one-side rotary shaft of the heat roller so as to extend along the direction in which the heat roller is rotated.

    Abstract translation: 在定影装置中,加热辊和用于旋转加热辊的固定齿轮同心地布置,并且通过将形成在定影齿轮中的键插入到形成在加热辊中的键槽中而相互耦合。 键槽被设计成使得钥匙能够沿着加热辊旋转的方向移动。 例如,键槽是通过使加热辊的单面旋转轴的自由端沿着加热辊旋转的方向延伸而形成的。

    SHEET FEEDING APPARATUS WITH MECHANISM FOR DETECTING SHEET FEEDING STATE AND SHEET FEEDING METHOD
    7.
    发明申请
    SHEET FEEDING APPARATUS WITH MECHANISM FOR DETECTING SHEET FEEDING STATE AND SHEET FEEDING METHOD 有权
    用于检测纸张进给状态和纸张进给方法的纸张进给装置

    公开(公告)号:US20090189339A1

    公开(公告)日:2009-07-30

    申请号:US12356111

    申请日:2009-01-20

    Abstract: A sheet feeding apparatus includes first and second sheet sensors provided in order from upstream to downstream sides in feeding direction on a paper feed path, sheet conveyor roller sets arranged along the path, and a roller controller individually controlling groups of rollers on the upstream and downstream sides of the first sheet sensor, in response to a change in values of output signals from first and second sheet sensors. The roller controller includes an overlapped feeding determining device outputting a determination signal assuming a first value when overlapped feeding occurs and a second value otherwise, in response to the change in values of the output signals from the sensors, an overlapped feeding eliminating device eliminating overlapped feeding by controlling the roller controller upon receiving the determination signal of the first value, and a conveyor roller stopping device stopping the sheet conveyor rollers if the overlapped feeding eliminating process should fail.

    Abstract translation: 片材进给装置包括沿进给路径的进给方向上游侧到下游侧的顺序设置的第一和第二片材传感器,沿着路径布置的片材输送辊组,以及分别控制上游和下游的辊组的辊控制器 响应于来自第一和第二片传感器的输出信号的值的变化,第一片传感器的侧面。 辊控制器包括重叠进给确定装置,当重叠进给发生时,输出假定为第一值的确定信号,否则,响应于来自传感器的输出信号的值的变化,排除重叠进给 通过在接收到第一值的确定信号时控制辊控制器,以及如果重叠进给消除过程失败,则输送辊停止装置停止输纸辊。

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