Automatic document feeder and image forming apparatus including the same
    14.
    发明授权
    Automatic document feeder and image forming apparatus including the same 有权
    自动进纸器和包括其的成像设备

    公开(公告)号:US08636275B2

    公开(公告)日:2014-01-28

    申请号:US13067381

    申请日:2011-05-27

    IPC分类号: B65H83/00

    摘要: An automatic document feeder includes a separating and feeding unit which has a separating member and a paper feeding member coming into contact with the separating member at a predetermined separating pressure, and separates and feeds an original sheet by sheet from a bundle of originals placed on an original placing table; a conveying unit which conveys the original separated by the separating and feeding unit toward a scanning position; a separating pressure switching unit which applies and releases the separating pressure and which is controlled by a control unit to release the separating pressure after a leading edge of a preceding sheet of the original has passed through the separating and feeding unit and to apply the separating pressure before a sheet of original separated and fed next to the preceding sheet of original is fed from the bundle of original to the separating and feeding unit.

    摘要翻译: 自动进稿器包括分离和进给单元,该分离和进给单元具有分离构件和供纸构件,其以预定的分离压力与分离构件接触,并且将原始的一张一张的纸张从放置在 原始放置表; 传送单元,其将由分离和进给单元分离的原稿传送到扫描位置; 分离压力切换单元,其施加并释放所述分离压力,并且由所述原件的前边缘的前缘通过所述分离和供给单元之后由控制单元控制以释放所述分离压力,并施加所述分离压力 在将原稿分离并供给的原稿的一张原稿从原稿束馈送到分离和进给单元之前。

    AUTOMATIC DOCUMENT FEEDER AND IMAGE FORMING APPARATUS INCLUDING THE SAME
    16.
    发明申请
    AUTOMATIC DOCUMENT FEEDER AND IMAGE FORMING APPARATUS INCLUDING THE SAME 有权
    自动文件进纸器和图像形成装置,包括它们

    公开(公告)号:US20130315610A1

    公开(公告)日:2013-11-28

    申请号:US13896371

    申请日:2013-05-17

    IPC分类号: G03G15/00

    CPC分类号: G03G15/607 G03G15/70

    摘要: According to an embodiment, an ADF includes: a sheet-feed cover unit; a switch unit to be switched on or off depending on whether the sheet-feed cover unit is open or closed and including a first terminal, to which a first voltage, by which a driving motor is driven, is input, and a second terminal connected to the driving motor; and an open/close-detection circuit unit that includes a first switch circuit and a second switch circuit. The first switch circuit is switched on or off based on a threshold voltage that is larger than a second voltage to be generated in the driving motor by a jammed-document removing motion and smaller than the first voltage. The open/close-detection circuit unit detects that the sheet-feed cover unit is closed when the second switch circuit is energized, but detects that the sheet-feed cover unit is open when the second switch circuit is de-energized.

    摘要翻译: 根据实施例,ADF包括:送纸盖单元; 开关单元,其根据片材供给盖单元是打开还是关闭而被接通或断开,并且包括第一端子,驱动电机被驱动的第一电压被输入到第一端子,并且第二端子连接 到驱动电机; 以及包括第一开关电路和第二开关电路的开/闭检测电路单元。 第一开关电路基于通过卡纸文件移除运动而小于第一电压在驱动电机中产生的大于第二电压的阈值电压来接通或关断。 打开/关闭检测电路单元检测到当第二开关电路通电时供纸盖单元关闭,但是当第二开关电路断电时检测到供纸盖单元是打开的。

    Document reading device and image forming apparatus including same

    公开(公告)号:US09648194B2

    公开(公告)日:2017-05-09

    申请号:US14637890

    申请日:2015-03-04

    IPC分类号: H04N1/04 H04N1/203

    CPC分类号: H04N1/2034

    摘要: A document reading device including an image reader. The image reader includes a first reader to read a first image from a first face of a document fed by a document feeder and a second reader to read a second face of the document. An operation mode is switchable between a normal operation mode in which the image reader is in an operation enabled state and an energy-saving mode in which the image reader is in an operation stop state. In a return from the energy saving mode to the normal operation mode, the image reader performs a start-up operation including a first initial operation for returning the first reader to the normal operation mode and then performs a second initial operation for returning the second reader to the normal operation mode.