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公开(公告)号：US5206690A
公开(公告)日：1993-04-27
申请号：US813845
申请日：1991-12-27
IPC分类号： G03G15/09
CPC分类号： G03G15/0921 , G03G15/09
摘要： A developing device comprises a rotatable developing sleeve, a magnet member stationarily disposed inside the developing sleeve and a developer restricting member which restricts an amount of developer transported on a peripheral surface of the developing sleeve toward a developing region in accordance with rotation of the developing sleeve. The magnet member has a developing magnetic pole confronting the developing region, an identical polarity magnetic part which is provided between the developer restricting member and the developing magnetic pole and is formed of a plurality of adjacent magnetic poles of an identical polarity, and a magnetic pole which is provided between the identical polarity magnetic part and the developing magnetic pole for transporting the developer.
摘要翻译： 显影装置包括可旋转的显影套筒，固定地设置在显影套筒内的磁体构件和显影剂限制构件，其根据显影套筒的旋转将显影套筒的周面上的显影剂传送到显影区域 。 磁性构件具有与显影区域相对的显影磁极，设置在显影剂限制构件和显影磁极之间并且由多个相同极性的相邻磁极形成的相同极性磁性部分，以及磁极 其设置在用于输送显影剂的相同极性磁性部分和显影磁极之间。
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公开(公告)号：US5311262A
公开(公告)日：1994-05-10
申请号：US772942
申请日：1991-10-08
CPC分类号： G03G15/0921
摘要： In an image forming apparatus accommodating a developing device, a developing roller 1 includes a magnet member 3 non-rotatably fixed and a sleeve 2 rotatably moved around the outer surface of the magnet member 3, powdery developers D held on the outer periphery of the sleeve 2 are brought into contact with a photosensitive member 10 to visualize an electrostatic latent image, and the magnet member 3 is provided with a magnetic pole portion N.sub.0 having first and second magnetic poles N.sub.1 and N.sub.2. The first and second magnetic poles N.sub.1 and N.sub.2 have the same polarities and are adjacent to each other and confront the photosensitive member 10. The powdery developers D include three developer parts, an upper developer D.sub.1, a middle developer D.sub.12 and a lower developer D.sub.2, which are successively retained on the outer surface of the sleeve 2 by the first and second magnetic poles N.sub.1 and N.sub.2. The upper developer D.sub.1 retained by the first magnetic pole N.sub.1 and the middle developer D.sub.12 retained by the middle portion between the first and second magnetic poles N.sub.1 and N.sub.2 are brought into contact with the photosensitive member, while the lower developer D.sub.2 retained by the second magnetic pole N.sub.2 is held out of contact with the photosensitive member.
摘要翻译： 在容纳显影装置的图像形成装置中，显影辊1包括不可旋转地固定的磁体构件3和围绕磁体构件3的外表面可旋转地移动的套筒2，保持在套筒外周上的粉状显影剂D 2与感光构件10接触以使静电潜像可视化，并且磁体构件3设置有具有第一和第二磁极N1和N2的磁极部分N0。 第一和第二磁极N1和N2具有相同的极性并彼此相邻并且面对感光构件10.粉末显影剂D包括三个显影剂部分，上显影剂D1，中间显影剂D12和下显影剂D2， 其通过第一和第二磁极N1和N2连续地保持在套筒2的外表面上。 由第一磁极N1保持的上部显影剂D1和由第一和第二磁极N1和N2之间的中间部分保持的中间显影剂D12与感光构件接触，而由第二磁性体 极N2与感光构件保持不接触。
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公开(公告)号：US5385801A
公开(公告)日：1995-01-31
申请号：US109741
申请日：1993-08-20
申请人： Yoshihisa Terasaka , Junji Ohtani , Junji Machida , Tamotsu Shimizu , Hiroshi Murasaki , Hiroshi Mizuno
发明人： Yoshihisa Terasaka , Junji Ohtani , Junji Machida , Tamotsu Shimizu , Hiroshi Murasaki , Hiroshi Mizuno
CPC分类号： B82Y15/00 , G03G13/09 , G03G9/0819 , G03G9/1131
摘要： This invention relates to a method of developing electrostatic latent images which comprises the steps of;mixing a developer including toners having a mean particle size of 3 to 20 .mu.m and resin-coated carriers with a large number of pores having a pore size distribution of 0.001 to 3 .mu.m and a mean pore size of 0.1 to 0.5 .mu.m on a surface thereof;applying said developer onto a developing sleeve made of nonmagnetic material and arranged oppositely to an electrostatic latent image-retaining member with a minute gap therebetween;forming a magnetic brush of the developer by the magnetic force of a magnet member having plural poles in the circumferential direction thereof, said magnet member fixedly arranged within the developing sleeve;conveying the developer by a rotation of the developing sleeve to a developing zone where the electrostatic latent image-retaining member is arranged oppositely to the developing sleeve; anddeveloping electrostatic latent images by the toners which are held on the developing sleeve.
摘要翻译： 本发明涉及一种静电潜像显影方法，包括以下步骤： 混合平均粒度为3〜20μm的调色剂的显影剂和孔径分布为0.001〜3μm，平均孔径为0.1〜0.5μm的树脂被覆载体， 其表面; 将所述显影剂施加到由非磁性材料制成的显影套筒上并且与静电潜像保持构件相对地设置，其间具有微小的间隙; 通过在圆周方向上具有多个磁极的磁性构件的磁力来形成显影剂的磁刷，所述磁体构件固定地布置在显影套筒内; 通过显影套筒的旋转将显影剂输送到静电潜像保持部件与显影套筒相对布置的显影区域; 并通过保持在显影套筒上的调色剂显影静电潜像。
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4.发明授权Image forming apparatus and image-carrier cartridge device which is employed in the same 失效用于其中的图像形成装置和图像载体盒装置
公开(公告)号：US6038415A
公开(公告)日：2000-03-14
申请号：US118441
申请日：1998-07-17
申请人： Masayuki Nishi , Hiroshi Murasaki , Toru Matsui
发明人： Masayuki Nishi , Hiroshi Murasaki , Toru Matsui
CPC分类号： G03G21/1832 , G03G21/0064 , G03G2215/021 , G03G2221/0005
摘要： An image forming apparatus employs an image carrier (photoreceptor) cartridge having protective covers of which surface is coated with conductive shield in order to prevent frictional charging that will bring on sparking between a photoreceptor and covers. Further, the photoreceptor cartridge is equipped on its surface with an elastic member which is a foam body having a plurality of foam cells for catching foreign matter such as paper particles in order to prevent the foreign matter from damaging the surface of the photoreceptor. Moreover, the photoreceptor cartridge is also equipped with a flick member for flicking off toner deposited on a conductive brush in order to prevent the brush from becoming dirty. Owing to the above-mentioned construction, the image forming apparatus can avoid degradation in image quality.
摘要翻译： 图像形成装置采用具有保护罩的图像载体（感光体）盒，其表面涂覆有导电屏蔽，以防止在感光体和覆盖物之间引起火花的摩擦带电。 此外，感光体盒的表面上装有弹性部件，该弹性部件是具有多个发泡细胞的泡沫体，用于捕捉异物如纸颗粒，以防止异物损害感光体的表面。 此外，感光体盒还装备有用于扑灭沉积在导电刷上的调色剂的滑动部件，以防止刷子变脏。 由于上述结构，图像形成装置可以避免图像质量的劣化。
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5.发明授权Electrostatic latent image developing apparatus with bristle height adjusting member 失效具有刷毛高度调节构件的静电潜像显影装置
公开(公告)号：US5140373A
公开(公告)日：1992-08-18
申请号：US408447
申请日：1989-09-06
IPC分类号： G03G15/09
CPC分类号： G03G15/09
摘要： A developing apparatus is accommodated in an image forming apparatus to develop an electrostatic laten image formed on an electrostatic latent image support member, using two-component developer of toner and magnetic carrier. The developing apparatus is provided with a developing sleeve opposed to the electrostatic latent image support member, a magnetic roller disposed inside the developing sleeve to hold the carrier on a peripheral surface of the developing sleeve, a toner hopper accommodating the toner and having an opening at its one end, a toner supply roller rotatably disposed in the opening of the toner hopper and opposed to the developing sleeve, a bristle height adjusting member opposed to the developing sleeve on the downstream side of a developing region and on the upstream side of a toner supply region in a direction of movement of the carrier held on the peripheral surface of the developing sleeve. The developing sleeve confronts the electrostatic latent image support member in the developing region and the toner supply roller in the toner supply region.
摘要翻译： 显影装置被容纳在图像形成装置中，以使用调色剂和磁性载体的双组分显影剂显影形成在静电潜像支撑构件上的静电放电图像。 显影装置设有与静电潜像支撑构件相对的显影套筒，设置在显影套筒内部的磁性辊，以将载体保持在显影套筒的外周表面上，调色剂漏斗容纳调色剂并且具有开口 其一端是可旋转地设置在调色剂料斗的开口中并与显影套筒相对的调色剂供给辊，在显影区域的下游侧和调色剂的上游侧与显影套筒相对的刷毛高度调节构件 供给区域沿保持在显影套筒的周面上的托架的运动方向。 显影套筒面对显影区域中的静电潜像支撑构件和调色剂供应区域中的调色剂供给辊。
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6.发明授权Developing apparatus provided with a chamber for controlling toner grain diameter 失效具有用于控制调色剂颗粒直径的室的显影装置
公开(公告)号：US4987452A
公开(公告)日：1991-01-22
申请号：US291120
申请日：1988-12-28
IPC分类号： G03G15/08
CPC分类号： G03G15/0887 , G03G15/0877 , G03G15/0889
摘要： An electrostatic latent image developing apparatus includes an agitating member accommodated in a casing, a roller member accommodated in a front of the casing, and a blade contacting under pressure with an outer circumferential portion of the roller member, which is arranged in the casing. Toner held on the outer circumferential portion of said roller member being supplied to develop an electrostatic latent image on the basis of rotation of the roller member while being regulated by the blade. The apparatus includes a partition member arranged between the roller member and the agitating member at an upper stream side of said blade corresponding to a rotary direction of the roller member. The casing has a space defined among the partition member, the blade, and the outer circumferential portion of the roller member.
摘要翻译： 静电潜像显影装置包括容纳在壳体中的搅拌构件，容纳在壳体前部的滚子构件和设置在壳体中的与压力构件的外周部分在压力下接触的叶片。 供给保持在所述辊构件的外圆周部分上的调色剂被供给以在由叶片调节的同时基于辊构件的旋转而显影静电潜像。 该装置包括一个分隔部件，该分隔部件设置在与滚子部件的旋转方向相对应的所述叶片的上游侧的辊部件和搅拌部件之间。 壳体具有限定在分隔构件，叶片和辊构件的外周部之间的空间。
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公开(公告)号：US4436406A
公开(公告)日：1984-03-13
申请号：US390624
申请日：1982-06-21
申请人： Hiroshi Murasaki , Masaya Ogawa , Yuji Enoguchi , Mikio Masui
发明人： Hiroshi Murasaki , Masaya Ogawa , Yuji Enoguchi , Mikio Masui
摘要： A paper feeder for feeding a large supply of paper to a recording apparatus such as a copying machine. The recording apparatus has a main body with a driving apparatus therein, an automatic feed mechanism therein including paper storage cassettes and an automatic feed for feeding recording paper from the cassettes, and a manual feed for feeding into the apparatus recording paper manually inserted thereinto. The paper feeder has a recording paper accommodating unit for accommodating a larger number of sheets of recording paper than the cassettes, the unit having a sheet feeder for feeding the recording paper out of the unit, and releasable engaging hooks for removably attaching the unit to the main body with the feed positioned in a position opposed to said manual feed of the apparatus for delivering sheets of recording paper to the manual feed. The apparatus drive is connected to the sheet feeder when the unit is attached to the main body, whereby when the unit is attached to the main body with a multiplicity of sheets of recording paper accommodated therein, the sheets can be fed to the interior of the apparatus through the manual feed.
摘要翻译： 用于将大量纸张供给到诸如复印机的记录装置的供纸器。 记录装置具有其中具有驱动装置的主体，其中包括纸存储盒的自动进给机构和用于从盒中提供记录纸的自动进给器，以及用于馈送到手动插入其中的装置记录纸的手动进给。 供纸器具有用于容纳比盒更大数量的记录纸的记录纸容纳单元，该单元具有用于将记录纸从该单元输送的供纸器，以及用于将该单元可移除地附接到该单元的可释放接合钩 主体，其中进给定位在与用于将记录纸张输送到手动进给装置的装置的所述手动进给相对的位置。 当该装置安装在主体上时，该装置驱动装置连接到送纸器上，由此当该单元以容纳多张记录纸的方式安装在主体上时，该纸张可以被送到 设备通过手动进纸。
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公开(公告)号：US4084895A
公开(公告)日：1978-04-18
申请号：US740722
申请日：1976-11-10
申请人： Masaya Ogawa , Hiroshi Murasaki
发明人： Masaya Ogawa , Hiroshi Murasaki
CPC分类号： G03B27/525
摘要： The present invention is a projection device for a photocopying machine in which the original documents are moved during the photocopying process and which permits photocopying both of thick and of thin original documents. The projection means includes a focussing means which has a short focal length and is positioned to correctly focus the image of thin original documents which are brought to an exposure station and are only separated space-wise from the focussing means onto a photosensitive material, and a transparent block which, when a thick original document is copied, is automatically interposed between the focussing means and the exposure station and compensates the deviation in the path of image-wise light caused by the transparent carrier on which the thick original document is supported, whereby good resolution is achieved in photocopies of all types of original documents.
摘要翻译： 本发明是一种复印机的投影装置，其中原稿在复印过程中移动，并且允许对厚纸和薄原稿进行复印。 投影装置包括聚焦装置，其具有短的焦距并且被定位成将被带到曝光站的薄的原始文件的图像正确地聚焦，并且仅将它们从聚焦装置空间分离到感光材料上， 当复印粗原稿时，透明块被自动地插入到聚焦装置和曝光站之间，并补偿由其上载有粗原稿的透明载体引起的图像光的路径偏差，由此 所有类型的原始文件的复印件都能实现良好的分辨率。
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公开(公告)号：US6026259A
公开(公告)日：2000-02-15
申请号：US997392
申请日：1997-12-23
申请人： Hideo Yamaki , Koji Niizawa , Hiroshi Murasaki
发明人： Hideo Yamaki , Koji Niizawa , Hiroshi Murasaki
CPC分类号： G03G21/06
摘要： An erasing device includes a sheet-like erasing member. The erasing member is supported by an electric charger in contact with the image bearing member for erasing a residual electric charge from the image bearing member. Preferably, the erasing member is supported by a supporting member which in turn is supported by the electric charger. Therefore, the erasing member can be disposed relative to the image bearing member with a greater precision without using any additional rigid member. Also, the image bearing member can be erased without any defect, which results in that the image bearing member is uniformly charged in the subsequent charging.
摘要翻译： 擦除装置包括片状擦除部件。 擦除构件由与图像承载构件接触的电动充电器支撑，用于擦除来自图像承载构件的剩余电荷。 优选地，擦除构件由支撑构件支撑，支撑构件又由充电器支撑。 因此，可以在不使用任何额外的刚性构件的情况下以更高的精度相对于图像承载构件布置擦除构件。 此外，可以擦除图像承载部件而没有任何缺陷，这导致图像承载部件在随后的充电中被均匀地充电。
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10.发明授权
公开(公告)号：US5012285A
公开(公告)日：1991-04-30
申请号：US191122
申请日：1988-05-06
申请人： Tateki Oka , Naoki Toyoshi , Tomoaki Yokoyama , Hiroshi Mizuno , Hiroshi Murasaki , Akihito Ikegawa , Kouichi Etou , Shuichi Nakagawa
发明人： Tateki Oka , Naoki Toyoshi , Tomoaki Yokoyama , Hiroshi Mizuno , Hiroshi Murasaki , Akihito Ikegawa , Kouichi Etou , Shuichi Nakagawa
IPC分类号： G03G15/08
CPC分类号： G03G15/0822 , G03G15/0877 , G03G15/0896
摘要： A developing apparatus includes a photosensitive drum positioned in confronting relation to a developing sleeve. A toner accommodating tank is provided for supplying toner to the developing sleeve. The toner accommodating tank is divided into a small chamber and a supplementary chamber which are separated from one another by a partition which permits toner to be supplied from the supplementary chamber to the small chamber but which prevents the return of toner from the small chamber to the supplementary. A movable shutter selectively permits and prevents toner from being supplied from the supplementary chamber to the small chamber in accordance with operation of the apparatus.
摘要翻译： 显影装置包括与显影套筒相对定位的感光鼓。 提供调色剂容纳槽，用于向显影套筒供应调色剂。 调色剂容纳箱被分成小室和辅助室，它们通过隔板彼此分开，隔板允许调色剂从辅助室供应到小室，但防止调色剂从小室返回到 补充。 根据设备的操作，活动快门选择性地允许和防止调色剂从辅助室供应到小室。
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