Sheet feeder and image forming apparatus
    1.
    发明授权
    Sheet feeder and image forming apparatus 有权
    送纸器和成像设备

    公开(公告)号:US09586772B2

    公开(公告)日:2017-03-07

    申请号:US14736046

    申请日:2015-06-10

    Abstract: A sheet feeder includes a tray configured to load a sheet to be fed thereon. The tray has a tray upper face and a pair of cursors. The tray upper face has a recessed portion, a guide plate and a feeding route. The recessed portion extends along the width direction on an upstream side from the pair of cursors in the feeding direction. The guide plate is configured to cover an upper side of the recessed portion. The feeding route is formed between the recessed portion and the guide plate and extending from an inlet port positioned on an upstream side to an outlet port positioned on a downstream side along the feeding direction. The sheet in a state of being passed through the feeding route is aligned with the pair of cursors on the tray upper face and then fed.

    Abstract translation: 片材进给器包括托盘,其被配置为装载要在其上进给的片材。 托盘具有托盘上表面和一对光标。 托盘上表面具有凹部,导板和进给路径。 所述凹部沿着所述宽度方向在所述一对光标的上游侧沿所述供给方向延伸。 引导板构造成覆盖凹部的上侧。 所述供给路径形成在所述凹部与所述引导板之间,并且从位于上游侧的入口沿着所述进给方向延伸至位于下游侧的出口。 通过进给路径的状态下的纸张与托盘上表面上的一对光标对准,然后进给。

    Sheet process device
    2.
    发明授权
    Sheet process device 有权
    工艺流程装置

    公开(公告)号:US09056743B2

    公开(公告)日:2015-06-16

    申请号:US14457344

    申请日:2014-08-12

    Abstract: A sheet process device includes a supporting member and a process device main body. The supporting member is attached to the lateral face at a side of an in-body sheet ejection space of an image forming apparatus. The process device main body is supported by the supporting member. The process device main body includes a relay conveyance unit and a post process unit. The relay conveyance unit is arranged slidable in a direction to the in-body sheet ejection space. The post process unit is arranged slidable in upward and downward directions with respect to the supporting member. The process device main body provides a sheet conveying path extending from a sheet ejection port of the image forming apparatus to the post process unit through the relay conveyance unit, when the post process unit is moved upwardly after the relay conveyance unit is moved into the in-body sheet ejection space.

    Abstract translation: 片材处理装置包括支撑构件和处理装置主体。 支撑构件附接到图像形成装置的体内片材排出空间的侧面的侧面。 处理装置主体由支撑构件支撑。 处理装置主体包括继电器输送单元和后处理单元。 继电器输送单元可以在与体内片材排出空间相对的方向上滑动。 后处理单元被布置成相对于支撑构件可向上和向下滑动。 处理装置主体通过继电器传送单元提供从图像形成装置的纸张排出口延伸到后处理单元的纸张传送路径,当后处理单元在继电器输送单元移动到其中之后向上移动时 体片排出空间。

    Sheet feeding device and image forming apparatus

    公开(公告)号:US11760595B2

    公开(公告)日:2023-09-19

    申请号:US17347671

    申请日:2021-06-15

    Abstract: A sheet feeding device includes a sheet feeding roller, a following roller, a rotational speed detection part, and a control part. The rotational speed detection part is configured to detect a rotational speed of the following roller. The control part is configured to accelerate a rotation of the sheet feeding roller and to adjust a sheet interval. The control part obtains a rotational rate of the following roller to the sheet feeding roller based on the rotational speed of the following roller, obtains an actual linear velocity of the sheet based on the rotational rate of the following roller and a theoretical linear velocity of the sheet after accelerating the rotation of the sheet feeding roller, and then adjusts the sheet interval based on the actual linear velocity of the sheet.

    Fixing device that enables setting of position of claw member of fixing device in accordance with kind of sheet, and image forming apparatus including the same

    公开(公告)号:US10437183B1

    公开(公告)日:2019-10-08

    申请号:US16120334

    申请日:2018-09-03

    Inventor: Yuichiro Tanaka

    Abstract: A fixing device includes a fixing member, a pressure member, and a separating unit. The pressure member is rotatably located and in a pressure contact with the fixing member to form a fixing nip. The separating unit is configured to separate a sheet from the fixing member. The sheet is attached on the fixing member when passing through the fixing nip. The separating unit includes a sliding member, a claw member, and a turning mechanism. The sliding member is located in a state of contacting a surface of the fixing member. The claw member runs toward the fixing nip from the sliding member. The claw member has a distal end portion. The claw member is located in a state where the distal end portion contacts the surface of the fixing member. The turning mechanism reciprocates the sliding member and the claw member along a rotation direction of the fixing member.

    Sheet feed conveyance device and image forming apparatus

    公开(公告)号:US10099877B2

    公开(公告)日:2018-10-16

    申请号:US15786182

    申请日:2017-10-17

    Inventor: Yuichiro Tanaka

    Abstract: A sheet feed conveyance device includes a warning section, a pickup roller that feeds a sheet, a separation section, a speed sensor that detects a conveyance speed of the sheet, and a controller. The separation section includes a feed roller that feeds downstream the sheet fed by the pickup roller and a retard roller that returns a sheet involved in multiple sheet feeding toward the pickup roller. The controller recognizes the conveyance speed based on output of the speed sensor, integrate conveyance speeds detected in a measurement time period from rotation start of the pickup roller to elapse of a specific time period, and determines necessity for maintenance of the pickup roller according to a measurement distance as a result of integration.

    Sheet guiding mechanism, image forming apparatus

    公开(公告)号:US09856100B2

    公开(公告)日:2018-01-02

    申请号:US15264378

    申请日:2016-09-13

    Abstract: A sheet guiding mechanism includes a pair of first rotators and a pair of second rotators provided in a conveying path for a sheet material, a first sheet guide portion, a second sheet guide portion, a shaft member, and a plurality of guide rollers. The first sheet guide portion and the second sheet guide portion form guide surfaces for the sheet material on both sides of the conveying path. Both end portions of the shaft member extending along a width direction are supported by the second sheet guide portion. The guide rollers are in contact with the sheet material conveyed in the conveying path, and rotate to follow the sheet material. The shaft member is bent by a pressure applied from the sheet material to the guide rollers when a tension is applied to the sheet material between the pair of first rotators and the pair of second rotators.

    SHEET GUIDING MECHANISM, IMAGE FORMING APPARATUS

    公开(公告)号:US20170090383A1

    公开(公告)日:2017-03-30

    申请号:US15264378

    申请日:2016-09-13

    Abstract: A sheet guiding mechanism includes a pair of first rotators and a pair of second rotators provided in a conveying path for a sheet material, a first sheet guide portion, a second sheet guide portion, a shaft member, and a plurality of guide rollers. The first sheet guide portion and the second sheet guide portion form guide surfaces for the sheet material on both sides of the conveying path. Both end portions of the shaft member extending along a width direction are supported by the second sheet guide portion. The guide rollers are in contact with the sheet material conveyed in the conveying path, and rotate to follow the sheet material. The shaft member is bent by a pressure applied from the sheet material to the guide rollers when a tension is applied to the sheet material between the pair of first rotators and the pair of second rotators.

    Recording medium feeding device and image forming apparatus provided with same
    8.
    发明授权
    Recording medium feeding device and image forming apparatus provided with same 有权
    记录介质供给装置和具有该记录介质供给装置的图像形成装置

    公开(公告)号:US09221634B2

    公开(公告)日:2015-12-29

    申请号:US14600434

    申请日:2015-01-20

    Abstract: According to the present disclosure, a recording medium feeding device includes a pickup roller, a feed roller, a retard roller, a holding member, a pressing mechanism, a pressing force changing mechanism, and a driving force transmitting mechanism. The holding member is configured to rotatably support the feed roller and the pickup roller. The pressing mechanism is configured to press the pickup roller against a recording medium. The pressing force changing mechanism is configured to change the pressing force of the pickup roller. The driving force transmitting mechanism is configured to transmit a rotation-driving force to the feed roller. The pressing force changing mechanism obtains a driving force from the driving force transmitting mechanism, and increases the pressing force according to rotation time of the pickup roller.

    Abstract translation: 根据本公开,记录介质进给装置包括拾取辊,进给辊,延迟辊,保持构件,按压机构,按压力改变机构和驱动力传递机构。 保持构件被构造成可旋转地支撑进给辊和拾取辊。 按压机构构造成将拾取辊压靠在记录介质上。 按压力改变机构构造成改变拾取辊的按压力。 驱动力传递机构构造成将旋转驱动力传递到进给辊。 按压力改变机构从驱动力传递机构获得驱动力,并且根据拾取辊的旋转时间增加按压力。

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