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1. 发明授权

US5592268A Mechanism to prevent toner leakage from an image forming unit 失效
标题翻译：防止调色剂从图像形成单元泄漏的机构
公开(公告)号：US5592268A
公开(公告)日：1997-01-07
申请号：US494558
申请日：1995-06-22
申请人： Mitsuyoshi Uehara , Hideo Yoshihara , Tsutomu Suzuki , Fumio Morita , Hiroshi Igarashi
发明人： Mitsuyoshi Uehara , Hideo Yoshihara , Tsutomu Suzuki , Fumio Morita , Hiroshi Igarashi
IPC分类号： G03G15/09
CPC分类号： G03G15/0942
摘要： An image forming unit includes structure to prevent leakage of initial developer containing magnetic carrier and magnetic toner from a case. The image forming unit includes a photoconductive drum, a developing sleeve, and a trimming blade. Auxiliary sealing members are attached to the opposite ends of the trimming blade to stop up gaps between side sealing members in sliding contact with the opposite ends of the developing sleeve, and a protective sheet is removably inserted in the gap between the developing sleeve and the trimming blade. Ferromagnetic strips capable of being magnetized by the magnet roller are attached to the reverse side of the protective sheet at the opposite sides of one end of the protective sheet. The ferromagnetic strips magnetically attract the developer that is about to leak through the gaps to completely prevent leakage of the developer.
摘要翻译：图像形成单元包括防止从壳体泄漏包含磁性载体的初始显影剂和磁性调色剂的结构。图像形成单元包括感光鼓，显影套筒和修剪刀片。辅助密封构件附接到修剪刀片的相对端，以阻止侧密封构件与显影套筒的相对端滑动接触的间隙，并且保护片可移除地插入显影套筒和修整件之间的间隙中刀。能够被磁性辊磁化的铁磁条在保护片的一端的相对侧附着在保护片的背面。铁磁条磁吸引将要通过间隙泄漏的显影剂，以完全防止显影剂的泄漏。

2. 发明授权

US5374047A Sheet feeder 失效
标题翻译：送纸器
公开(公告)号：US5374047A
公开(公告)日：1994-12-20
申请号：US103762
申请日：1993-08-10
申请人： Masaaki Tsukamoto , Mitsuyoshi Uehara
发明人： Masaaki Tsukamoto , Mitsuyoshi Uehara
IPC分类号： B65H3/52 , G03G15/00 , H04N1/00 , B65H3/06
CPC分类号： B65H3/5223
摘要： In separating one of a plurality of sheets stacked in a cassette from the remainder, a separation pad holder facing one side of the circumference of a sheet feed roller, which is rotatably driven, is urged in such a manner that a separation pad is brought into contact with or separation from the circumference of the sheet feed roller. Accordingly, an uppermost sheet can be pushed out in separation by friction force. When the sheet reaches a pair of sheet feed rollers, the separation pad holder can retreat with the interference of a projection formed in the separation pad holder by its own tension of the sheet across each circumference of the sheet feed collars and the pair of sheet feed rollers, thus eliminating friction generated between the separation pad and the sheet.
摘要翻译：在将盒中堆叠的多个片材中的一个从其余部分分离时，以可旋转的方式驱动的片材进给辊的圆周的一侧的分离垫保持件以使得分离垫进入与片材进给辊的圆周接触或分离。因此，可以通过摩擦力分离出最上面的片材。当纸张到达一对送纸辊时，分离垫保持器可以通过其自身张紧的片材进给轴环的每个周边和成对进给轴的每个圆周而随着形成在分离垫保持器中的突起的干涉而退回辊，从而消除了分离垫和片之间产生的摩擦。

3. 发明授权

US5294106A Image forming apparatus having detachable sheet cassette 失效
标题翻译：具有可拆卸片材盒的图像形成装置
公开(公告)号：US5294106A
公开(公告)日：1994-03-15
申请号：US931270
申请日：1992-08-17
申请人： Kazuhiko Takagi , Eiji Yokota , Eiji Tanaka , Masaaki Tsukamoto , Mitsuaki Inoue , Mitsuyoshi Uehara
发明人： Kazuhiko Takagi , Eiji Yokota , Eiji Tanaka , Masaaki Tsukamoto , Mitsuaki Inoue , Mitsuyoshi Uehara
IPC分类号： B65H3/46 , B65H1/04 , B65H3/68 , B65H5/06 , B65H5/36 , G03G15/00 , B65H1/22
CPC分类号： B65H1/04 , B65H2601/11
摘要： An image forming apparatus in which probability of sheet jamming is reduced and jammed sheet can be easily removed. The apparatus is provided with a guide plate, a movable guide plate defining a sheet feed passage therebetween, and a first sheet feed roller. A detachable sheet cassette is provided for attachment to a main body portion of the apparatus. In the sheet cassette, are provided a second sheet feed roller and a leaf spring which urges the second sheet feed roller toward the first sheet feed roller when the sheet cassette is attached to the main body portion. The sheet feed passage is opened by pivotal movement of the movable guide plate when the sheet cassette is detached from the main body portion, to thereby facilitate removal of the jamming sheet from the sheet feed passage.
摘要翻译：可以容易地去除其中片材卡住的概率减少并且卡住的片材的图像形成装置。该装置设置有引导板，在其间限定片材进给通道的可移动引导板和第一片材进给辊。提供了可拆卸的纸盒，用于附接到装置的主体部分。在片材盒中设置有第二片材进给辊和板簧，当片材盒安装到主体部分时，板簧将第二片材进给辊推向第一片材进给辊。当片材盒从主体部分拆卸时，片材进给通道由可动导板的枢转运动打开，从而便于从片材进给通道中取出卡纸。

4. 发明授权

US5277415A Sheet feeding device 失效
标题翻译：送纸装置
公开(公告)号：US5277415A
公开(公告)日：1994-01-11
申请号：US947470
申请日：1992-09-21
申请人： Naohisa Kinoshita , Mitsuyoshi Uehara , Eiji Tanaka
发明人： Naohisa Kinoshita , Mitsuyoshi Uehara , Eiji Tanaka
IPC分类号： B41J13/00 , B41J13/02 , B41J13/10 , B65H3/06 , B65H5/06 , B65H5/36 , B65H5/38 , B65H7/00 , B65H9/00 , B65H9/14 , G03G15/00 , B65H9/04
CPC分类号： B65H3/0607 , B65H5/062 , B65H7/00 , B65H2511/20 , B65H2511/514 , B65H2513/50 , B65H2513/512 , B65H2513/514 , B65H2515/116 , B65H2557/35 , B65H2701/1311
摘要： A sheet feeding device used for an image forming device which has a print part, such as the laser printer. A control part drives a separation roller installed under the print part and the paper supplying roller and supplies the printing paper to a resist roller individually. When a predetermined time passes afterwards, the control part drives the resist roller and transports the printing paper to the print part. In this case, a curve part enables miniaturization of the entire device as a result of being installed in a vertical part of the sheet guide.
摘要翻译：用于具有诸如激光打印机的打印部件的图像形成装置的片材进给装置。控制部件驱动安装在打印部件和供纸辊下方的分离辊，并将打印纸单独地供给到阻力辊。当预定时间过去时，控制部分驱动阻挡辊并将打印纸传送到打印部分。在这种情况下，由于安装在片材引导件的垂直部分，弯曲部件能使整个装置的小型化。

5. 发明授权

US4929105A Paper feeding apparatus for printer 失效
标题翻译：打印机供纸装置
公开(公告)号：US4929105A
公开(公告)日：1990-05-29
申请号：US355072
申请日：1989-05-15
申请人： Takanobu Hirayama , Hiroyuki Funahashi , Eiji Yokota , Mitsuyoshi Uehara , Isao Kagami , Makoto Hasegawa , Masaru Mizuno
发明人： Takanobu Hirayama , Hiroyuki Funahashi , Eiji Yokota , Mitsuyoshi Uehara , Isao Kagami , Makoto Hasegawa , Masaru Mizuno
IPC分类号： B41J23/02
CPC分类号： B41J23/025 , Y10S271/902
摘要： A paper feeding apparatus for the printer having an intermittent mechanism between a driving motor and both a paper feed roller and a platen. The intermittent mechanism allows both the platen and the paper feed roller to rotate simultaneously and also allows only the platen to rotate while the paper feed roller is suspended, so that a sheet of printing paper is set straight along the platen. When the rotational direction of the driving motor is reversed to reverse that of the platen, the driving motor stops rotating for a limited period. Under such conditions the sheet is fed properly in response to the rotation of the platen, being free from the inertia force of the sheet and from the platen's vibration.
摘要翻译：一种用于打印机的供纸装置，其具有在驱动电动机与供纸辊和压板之间的间歇机构。间歇机构允许压板和供纸辊同时旋转，并且还允许压纸辊在供纸辊悬挂时旋转，使得一张打印纸沿着压板直线设置。当驱动电动机的旋转方向反转以反转压板的旋转方向时，驱动电动机停止旋转一段有限的时间。在这种条件下，片材响应于压板的旋转被适当地进给，没有片材的惯性力和压板的振动。

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