Medium feeding device and image reading apparatus

    公开(公告)号:US10737892B2

    公开(公告)日:2020-08-11

    申请号:US16189839

    申请日:2018-11-13

    IPC分类号: B65H3/56 B65H3/06 H04N1/00

    摘要: A medium feeding device includes a medium placement portion on which a bunch of media is placed, a feed roller that feeds a lowermost medium of the bunch of media placed on the medium placement portion, a separation roller that is provided at a position facing the feed roller and separates a medium from the bunch of media, and a plurality of restricting portions that are provided on an upstream side of a nip position between the separation roller and the feed roller at an interval in a medium width direction which is a direction intersecting a medium feeding direction and come into contact with leading ends of upper media of the bunch of media excluding at least the lowermost medium such that the leading ends are restricted from coming into contact with the separation roller regardless of whether the separation roller is deformed or not.

    Medium feeding apparatus, image reading apparatus, and medium feeding method

    公开(公告)号:US11597617B2

    公开(公告)日:2023-03-07

    申请号:US16554251

    申请日:2019-08-28

    IPC分类号: B65H3/06 B65H7/18 B65H5/06

    摘要: A medium feeding apparatus includes a feed roller that feeds media. A separation roller nips the media together with the feed roller to separate it and is rotated in a first direction to feed the media. A motor applies driving torque to the separation roller in a second direction opposite to the first direction. A torque limiter, when rotation torque applied to the separation roller in the first direction exceeds a preset upper torque limit, causes the separation roller to rotate at idle in the first direction independently of the driving torque. During feeding operations, including feeding of first and second media, a controller that controls the motor provides a break period in which the motor is not driven. The break period contains the timing when a rear edge of the first medium leaves a nip position between the feeding and separation rollers.

    Multifeed detection device and image reading apparatus

    公开(公告)号:US10894680B2

    公开(公告)日:2021-01-19

    申请号:US16113615

    申请日:2018-08-27

    IPC分类号: B65H7/12 B65H3/06

    摘要: A multifeed detection device that detects multifeed by using an ultrasonic wave includes an ultrasonic emitting unit and an ultrasonic receiving unit arranged to oppose each other with a medium transport path interposed therebetween; judges occurrence of multifeed of media based on a detection intensity of an ultrasonic wave received by the ultrasonic receiving unit, and a multifeed threshold for judging multifeed of media; and acquires first information that is information relating to adjustment for the multifeed threshold, and second information for specifying that the first information is the information relating to the adjustment for the multifeed threshold, from a calibration sheet holding the first information and the second information.

    Print apparatus including image read apparatus-side communicating section
    6.
    发明授权
    Print apparatus including image read apparatus-side communicating section 有权
    打印装置,包括图像读取装置侧通信部

    公开(公告)号:US09065940B2

    公开(公告)日:2015-06-23

    申请号:US14224421

    申请日:2014-03-25

    IPC分类号: H04N1/00 G06F3/12

    摘要: When a start button of a scanner is operated in a state where a communication connection has been established with the scanner, then image data generated by the scanner by reading a document is acquired, a run mode is set from a plurality of operating modes including a copy mode and a transfer mode, and a process corresponding to the set run mode is executed on the acquired image data. This makes it possible to realize a plurality of functions of a printer in response to a single start button of a scanner.

    摘要翻译: 当扫描器的启动按钮在与扫描器建立通信连接的状态下操作时,获取扫描器通过读取文档产生的图像数据,从多个操作模式中设置运行模式,包括 复制模式和传送模式,并且对所获取的图像数据执行与设置的运行模式相对应的处理。 这使得可以响应于扫描仪的单个启动按钮实现打印机的多个功能。