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公开(公告)号：US5319418A
公开(公告)日：1994-06-07
申请号：US965051
申请日：1992-10-22
CPC分类号： G03G15/0896 , G03G21/1628 , G03G2221/1654 , G03G2221/1657 , G03G2221/18 , Y10T74/19093 , Y10T74/19665
摘要： A gear power transfer mechanism for driving a developing unit in an image forming apparatus wherein the developing unit is selectively located closely to and separated from a photoconductive drum unit in conjunction with opening and closing operations of a cover. This gear power transfer mechanism includes a first bevel gear provided on a rotation axis on a side of the photoconductive drum unit coupled with a drive motor, a second bevel gear always engaging with the first bevel gear, a third bevel gear provided on a rotating axis on a side of the developing unit, a fourth bevel gear always engaging with the third bevel gear and a rotation coupling device coupling the second bevel gear and fourth bevel gear. The rotation coupling device has a coupling structure which transfers rotation of the second bevel gear to the fourth bevel gear and allows movement of the fourth bevel gear relative to the second bevel gear when the developing unit is selectively located closely to and separated from the photoconductive drum unit.
摘要翻译： 一种用于驱动图像形成装置中的显影单元的齿轮动力传递机构，其中显影单元选择性地定位于与感光鼓单元紧密连接并与盖的打开和关闭操作分离。 该齿轮传动机构包括：第一锥齿轮，设置在与驱动马达相连的感光鼓单元一侧上的旋转轴上，与第一锥齿轮总是啮合的第二锥齿轮，设置在旋转轴上的第三锥齿轮 在显影单元的一侧，与第三锥齿轮总是接合的第四锥齿轮和联接第二锥齿轮和第四锥齿轮的旋转联接装置。 旋转联接装置具有联接结构，其将第二锥齿轮的旋转传递到第四锥齿轮，并且当显影单元选择性地紧邻于感光鼓并与感光鼓分离时允许第四锥齿轮相对于第二锥齿轮的运动 单元。
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公开(公告)号：US5411246A
公开(公告)日：1995-05-02
申请号：US98820
申请日：1993-07-29
CPC分类号： B65H1/12
摘要： A paper feeder capable of reducing its installation space and manufacturing cost, wherein a paper feed table which can be lifted or lowered being held horizontal is provided with an opening section. In order to load paper sheets onto the paper feed table directly from above, the opening section is made openable at the upper part thereof when the paper feeder is in a paper feeding state during which paper sheets are picked up and fed to a photosensitive drum or other device. The paper feeder also has a pick-up member for picking up the paper sheets thus loaded onto the paper feed table one after another starting with the top sheet in order to feed them to the photosensitive drum or other device.
摘要翻译： 一种能够减小其安装空间和制造成本的供纸台，其中可升降的供纸台被水平地设置有开口部。 为了将纸张从上方直接装载到供纸台上，当供纸器处于供纸状态时，打开部分在其上部可打开，在此期间，纸张被拾取并被馈送到感光鼓或 其他设备。 送纸器还具有一个拾取构件，用于将由此装载到纸张馈送台上的纸张从顶片开始拾取，以便将它们馈送到感光鼓或其它装置。
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公开(公告)号：US5335901A
公开(公告)日：1994-08-09
申请号：US11727
申请日：1993-02-01
摘要： A paper feeder capable of reducing its installation space and manufacturing cost, wherein a paper feed table which can be lifted or lowered being held horizontal is provided with an opening section. In order to load paper sheets onto the paper feed table directly from above, the opening section is made openable upwards when the paper feeder is in a paper feeding state during which paper sheets are picked up and fed to a photosensitive drum or similar device. The paper feeder also has a pick-up member for picking up the paper sheets thus loaded onto the paper feed table one after another starting with the top sheet in order to feed them to the photosensitive drum or similar device.
摘要翻译： 一种能够减小其安装空间和制造成本的供纸台，其中可升降的供纸台被水平地设置有开口部。 为了从上方直接将纸张装载到供纸台上，当供纸器处于供纸状态时，打开部分可以向上打开，在此期间，纸张被拾取并被馈送到感光鼓或类似装置。 供纸器还具有一个拾取构件，用于将如此装载到纸张供给台上的纸张从顶片开始拾取，以便将它们馈送到感光鼓或类似装置。
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4.发明授权
公开(公告)号：US4986528A
公开(公告)日：1991-01-22
申请号：US360698
申请日：1989-06-02
申请人： Shinichi Watarai , Yoji Houki , Tomohiro Nonomura
发明人： Shinichi Watarai , Yoji Houki , Tomohiro Nonomura
摘要： A skew of a print medium sheet generally occurs when the sheet is fed to an image-forming area in an image-forming apparatus, for example, an electronics image-forming printer, from a pile of such sheets. An apparatus according to the present invention is provided with a plurality of pairs of feed rollers between the pile and the image-forming area, and a skew of a sheet is corrected every time the sheet comes in contact with each pair of rollers which are not rotating for a predetermined time, so that even a large skew can be corrected by the time the sheet reaches the image-forming area.
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5.发明授权
公开(公告)号：US4896191A
公开(公告)日：1990-01-23
申请号：US241245
申请日：1988-09-07
申请人： Keiji Ohyabu , Youji Houki , Shinichi Watarai , Tomohiro Nonomura
发明人： Keiji Ohyabu , Youji Houki , Shinichi Watarai , Tomohiro Nonomura
CPC分类号： G03G21/1647 , G03G15/1635 , G03G21/1628 , G03G2221/1642 , G03G2221/1654 , G03G2221/1672 , G03G2221/1687 , G03G2221/1693
摘要： A gap produced between a sheet intruding guide and a surface of a drum is kept to a predetermined value with an allowable tolerance by positioning the sheet intruding guide together with an image transcription unit placed under the drum and constantly pushed toward the drum surface so that a space between the drum surface and the image transcription unit is kept constant. The sheet intruding guide can be lifted up and held away from the image transcription unit when the drum is removed upward, and released from the holding and set back to its regular position mechanically when the drum is lowered back to its regular position.
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