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1. 发明授权

US5845176A Process unit having mounting guides and protective covers 失效
标题翻译：处理单元具有安装导轨和保护罩
公开(公告)号：US5845176A
公开(公告)日：1998-12-01
申请号：US510373
申请日：1995-08-02
申请人： Narutaka Yoshida , Yuzuru Sugimoto , Hiroshi Mizuno
发明人： Narutaka Yoshida , Yuzuru Sugimoto , Hiroshi Mizuno
IPC分类号： G03G15/08 , G03G21/16 , G03G21/18
CPC分类号： G03G21/1832 , G03G15/0896 , G03G21/1623 , G03G21/1638 , G03G21/1853 , G03G2221/1609 , G03G2221/163 , G03G2221/1687
摘要： A fixed frame includes a photosensitive drum and a developing unit, and a movable frame is openable with respect to the fixed frame. The developing unit, which has two pairs of protrusions thereon, is detachably mounted to the fixed frame by engaging the protrusions with two pairs of guides provided on the fixed frame. One pair of guides includes a portion for momentarily catching one pair of the protrusions as the developing unit is being mounted to the apparatus, and each of the other pair of guides includes a inclined portion having the shape of an arc centered on the momentarily catching portion, whereby an impact to the developing unit is alleviated. The developing unit has a shutter which moves to a position for covering a peripheral surface of a developing sleeve when the developing unit is being dismounted, and which retracts from the developing sleeve covering position and moves to a position for covering the photosensitive drum when the developing unit is being mounted. The movable frame accommodates a fixing device to move the fixing device rearwardly together with the movable frame when the movable frame is opened, whereby the danger of an operator touching the fixing device when the apparatus is opened is reduced.
摘要翻译：固定框架包括感光鼓和显影单元，并且可移动框架相对于固定框架是可打开的。在其上具有两对突起的显影单元通过与设置在固定框架上的两对导轨接合突起而可拆卸地安装到固定框架。一对引导件包括当显影单元被安装到设备上时暂时捕获一对突起的部分，另一对引导件中的每一个引导件包括倾斜部分，该倾斜部分具有以瞬间捕获部分为中心的圆弧形状，从而减轻对显影单元的影响。显影单元具有挡板，当所述显影单元被拆卸时，所述挡板移动到用于覆盖显影套筒的外周表面的位置，并且当所述显影单元被显影时从所述显影套筒覆盖位置缩回并移动到用于覆盖所述感光鼓的位置装置正在安装。当可动框架打开时，可动框架容纳固定装置与可动框架一起向后移动固定装置，从而减少了当打开装置时操作人员接触定影装置的危险。

2. 发明申请

US20120177416A1 IMAGE FORMING APPARATUS 有权
标题翻译：图像形成装置
公开(公告)号：US20120177416A1
公开(公告)日：2012-07-12
申请号：US13344022
申请日：2012-01-05
申请人： Kanji NAKAYAMA , Masayasu Haga , Tomohisa Yoshida , Wataru Onoda , Narutaka Yoshida , Noboru Ito
发明人： Kanji NAKAYAMA , Masayasu Haga , Tomohisa Yoshida , Wataru Onoda , Narutaka Yoshida , Noboru Ito
IPC分类号： G03G15/08
CPC分类号： G03G15/0907 , G03G15/0928
摘要： An image forming apparatus, wherein the packing density at a closest point where the first peripheral surface and the second peripheral surface are the closest to each other is within a range from 0.3 to 0.4; wherein a maximum magnetic flux density of a principal magnetic pole for generating the magnetic field for development is located in an upstream side from the closest point with respect to the specified direction and at a point where the packing density is equal to or greater than 0.2; and wherein a magnetic flux density of the principal magnetic pole at a point where the packing density is 0.2 in a downstream side from the closest point with respect to the specified direction is equal to or less than ½ of a magnetic flux density of the principal magnetic pole at a point where the packing density is 0.2 in the upstream side.
摘要翻译：一种图像形成装置，其中，所述第一周面和所述第二周面最接近的最靠近处的填充密度在0.3〜0.4的范围内; 其中用于产生用于显影的磁场的主磁极的最大磁通密度位于相对于指定方向的最近点的上游侧，并且在填充密度等于或大于0.2的点处; 并且其中，相对于规定方向从最近点起的下游侧的填充密度为0.2的点处的主磁极的磁通密度等于或小于主磁体的磁通密度的1/2 在上游侧的填充密度为0.2的点处。

3. 发明申请

US20050084281A1 Image forming apparatus 失效
标题翻译：图像形成装置
公开(公告)号：US20050084281A1
公开(公告)日：2005-04-21
申请号：US10773262
申请日：2004-02-09
申请人： Narutaka Yoshida
发明人： Narutaka Yoshida
IPC分类号： G03G21/00 , G03G15/00 , G03G15/02 , G03G15/16 , G03G15/20 , G03G21/20
CPC分类号： G03G15/5054 , G03G15/161 , G03G2215/00075 , G03G2215/00084 , G03G2215/1623
摘要： To provide an image forming apparatus that prevents generation of image noise by controlling creep of a movable member having flexibility. The image forming apparatus for forming images on a recording medium comprises a movable member having flexibility, a detection section for detecting temperature of the movable member directly, and a control section for executing control so that when image forming is not conducted, the movable member is temporarily operated at predefined intervals if a temperature detected by the detection section is equal to or above a specified temperature, and the movable member is not operated if a temperature detected by the detection section is below the specified temperature.
摘要翻译：提供一种图像形成装置，其通过控制具有柔性的可动构件的蠕变来防止图像噪声的产生。用于在记录介质上形成图像的图像形成装置包括具有柔性的可移动部件，用于直接检测可移动部件的温度的检测部分和用于执行控制的控制部分，使得当不进行图像形成时，可动部件如果由检测部检测到的温度等于或高于指定温度，则以预定间隔临时操作，并且如果由检测部检测到的温度低于规定温度，则可动部件不工作。

4. 发明申请

US20120177415A1 IMAGE FORMING APPARATUS 有权
标题翻译：图像形成装置
公开(公告)号：US20120177415A1
公开(公告)日：2012-07-12
申请号：US13343157
申请日：2012-01-04
申请人： Tomohisa Yoshida , Masayasu Haga , Kanji Nakayama , Wataru Onoda , Narutaka Yoshida , Noboru Ito
发明人： Tomohisa Yoshida , Masayasu Haga , Kanji Nakayama , Wataru Onoda , Narutaka Yoshida , Noboru Ito
IPC分类号： G03G15/08
CPC分类号： G03G15/0813 , G03G15/0896
摘要： An image forming apparatus for forming a toner image on a print medium with a developer composed of toner and carriers, wherein when the first distance is longer than the second distance, an average gap between the first peripheral surface and a member that faces to the first peripheral surface in an area with a length of the first distance extending upstream from the closest point with respect to the specified direction is smaller than an average gap between the first peripheral surface and a member that faces to the first peripheral surface in an area with a length of the first distance extending downstream from the closest point with respect to the specified direction.
摘要翻译：一种图像形成装置，用于在具有由调色剂和载体构成的显影剂的打印介质上形成调色剂图像，其中当所述第一距离长于所述第二距离时，所述第一周边表面和面向所述第一距离的构件之间的平均间隙在相对于指定方向从最近点延伸上游的第一距离的长度的区域中的周边表面小于在第一周边表面和面向第一周边表面的部件之间的平均间隙从相对于指定方向的最近点延伸下游的第一距离的长度。

5. 发明授权

US5038181A Image forming unit having means for preventing a cleansing blade from contacting an image holding member until image forming unit is used 失效
标题翻译：图像形成单元具有用于防止清洁刮板与图像保持构件接触直到图像形成单元的装置
公开(公告)号：US5038181A
公开(公告)日：1991-08-06
申请号：US426117
申请日：1989-10-24
申请人： Narutaka Yoshida , Kiyoshi Hirose
发明人： Narutaka Yoshida , Kiyoshi Hirose
IPC分类号： G03G15/00 , G03G21/00 , G03G21/10 , G03G21/18
CPC分类号： G03G21/1814 , G03G21/0029 , G03G21/1628 , G03G21/1821 , G03G2221/1618 , G03G2221/1651 , G03G2221/1675 , G03G2221/1687 , G03G2221/183
摘要： A blade for cleaning an image holding member of an image forming unit is urged so as to contact the image holding member, and a member for obstructing the blade from contacting the image holding member by urged strength is arranged to release the obstruction. The member is further arranged so as to regulate returning action to the state of obstruction after the obstruction is released. Accordingly, when the blade is released from the state of obstruction by the obstruction member, the blade comes in contact with the image holding member by the urged strength and afterward it is kept in the state of contact since the obstructing function of the obstruction member is regulated.
摘要翻译：推动用于清洁图像形成单元的图像保持构件的刀片以与图像保持构件接触，并且设置用于阻止刀片通过推压强度与图像保持构件接触的构件以释放障碍物。该构件进一步布置成在阻塞被释放之后调节到阻塞状态的返回动作。因此，当叶片从阻塞构件的障碍物释放时，叶片通过施力强度与图像保持构件接触，之后保持在接触状态，因为阻塞构件的阻碍功能是规定。

6. 发明授权

US5017961A Image forming apparatus with use of a laser beam 失效
标题翻译：使用激光束的图像形成装置
公开(公告)号：US5017961A
公开(公告)日：1991-05-21
申请号：US374289
申请日：1989-06-29
申请人： Hirofumi Hasegawa , Naoto Ohmori , Yukio Yamada , Narutaka Yoshida
发明人： Hirofumi Hasegawa , Naoto Ohmori , Yukio Yamada , Narutaka Yoshida
IPC分类号： G03G15/04 , G03G15/22 , G06K15/12
CPC分类号： G03G15/221 , G03G15/04 , G06K15/1276 , G03G15/0435
摘要： An image forming apparatus includes a laser beam radiating unit utilized as a light source, and an optical system that the surface of an original reflects a laser beam radiated from the radiating unit to project an image reflected from the original onto a photosensitive member. In this apparatus, an image is formed selectively in a print mode that an image results from turning on and off the laser beam, in a copy mode that a copy of an original results from exposure of the photosensitive member to the laser beam reflected from the surface of an original or in a composite mode that a composite image is formed of a copy of an original and an image resulting from turning on and off the laser beam. Also, this apparatus comprises a reflector for directing the laser beam to the photosensitive member, and the reflector is automatically set at the reflecting position when the original cover is open or the print mode is selected. Further, this apparatus comprises a lock system for locking an original cover; the lock system works to lock the original cover when the copy mode or the composite mode is selected and to unlock the cover when the print mode is selected.
摘要翻译：图像形成装置包括用作光源的激光束照射单元以及原稿的表面反射从辐射单元辐射的激光束以将从原稿反射的图像突出到感光构件上的光学系统。在该装置中，以复印模式选择性地以打印和关闭激光束的图像形成图像，该复制模式是由感光构件的曝光引起的反射的激光束的原稿复制原稿的表面或复合模式，合成图像由原稿的副本和从打开和关闭激光束产生的图像形成。此外，该装置包括用于将激光束引导到感光构件的反射器，并且当原始盖打开或选择打印模式时，反射器被自动设置在反射位置。此外，该装置包括用于锁定原始盖的锁定系统; 当选择复印模式或复合模式时，锁定系统用于锁定原稿盖，并且在选择打印模式时解锁盖。

7. 发明授权

US07693463B2 Developing device and image forming apparatus 有权
标题翻译：显影装置和图像形成装置
公开(公告)号：US07693463B2
公开(公告)日：2010-04-06
申请号：US11785354
申请日：2007-04-17
申请人： Narutaka Yoshida , Tomohiro Kato , Yuusuke Okuno , Tomo Kitada
发明人： Narutaka Yoshida , Tomohiro Kato , Yuusuke Okuno , Tomo Kitada
IPC分类号： G03G15/08
CPC分类号： G03G15/0893 , G03G15/0877 , G03G2215/0132 , G03G2215/0841
摘要： A developing device has a bearing member that can bear a toner, a storing chamber for storing the toner, a waiting chamber disposed below the storing chamber for receiving the bearing member that can be filled with the toner and a buffer chamber positioned between the storing chamber and the waiting chamber for storing the developer material. A first horizontal connecting path connects upper portions of the storing and buffer chambers, and two second connecting paths connect lower portions of the buffer chamber and the waiting chamber. A feed member feeds toner from the storing chamber through the first connecting path into the buffer chamber. A first conveying member in the buffer chamber conveys the toner from one of the connecting paths to the other of the connecting paths, and a second conveying member in the waiting chamber conveys the toner within the waiting chamber in the opposite direction.
摘要翻译：显影装置具有可承载调色剂的支承构件，用于储存调色剂的储存室，设置在储存室下方的等待室，用于容纳可填充调色剂的轴承构件和位于储存室之间的缓冲室以及用于存储显影剂材料的等待室。第一水平连接路径连接存储和缓冲室的上部，并且两个第二连接路径连接缓冲室的下部和等待室。进料构件将来自储存室的调色剂通过第一连接路径进入缓冲室。缓冲室中的第一传送构件将调色剂从连接路径中的一个传送到另一个连接路径，等待室中的第二传送构件沿相反方向传送等待室内的调色剂。

8. 发明授权

US5697017A Image forming apparatus having process cartridge with shutter and cleaning member 失效
标题翻译：图像形成装置具有具有快门和清洁部件的处理盒
公开(公告)号：US5697017A
公开(公告)日：1997-12-09
申请号：US568665
申请日：1995-12-07
申请人： Paul Allen Rooke , Thomas Howard Miller , John Edward Passafiume , Narutaka Yoshida , Yasushi Tsuda , Joho Katsuo , Hirofumi Hasegawa
发明人： Paul Allen Rooke , Thomas Howard Miller , John Edward Passafiume , Narutaka Yoshida , Yasushi Tsuda , Joho Katsuo , Hirofumi Hasegawa
IPC分类号： G03G21/10 , G03G21/00 , G03G21/18 , G03G15/00
CPC分类号： G03G21/1832 , G03G2215/021 , G03G2221/1609 , G03G2221/1633 , G03G2221/1687
摘要： An image forming apparatus includes a photosensitive member, a developing unit which is removably installed in a body of the image forming apparatus, a shutter covering a developing region of the photosensitive member when the developing unit is removed from the body of the image forming apparatus and a cleaning member capable of cleaning the surface of the photosensitive member in accordance with rotation of the photosensitive member by making contact with the photosensitive member in conjunction with the shutter covering operation, but which does not contact the photosensitive member when the shutter is open. During a control operation, foreign matter such as used developer adhered to the photosensitive member is removed when the photosensitive member is rotated with the shutter closed.
摘要翻译：图像形成装置包括感光构件，可拆卸地安装在图像形成装置的主体中的显影单元，当显影单元从图像形成装置的主体移除时遮盖感光构件的显影区域的快门，以及清洁构件，其能够根据感光构件的旋转来清洁感光构件的表面，所述感光构件通过与快门覆盖操作相结合而与感光构件接触，但是当快门打开时不与感光构件接触。在控制操作期间，当感光构件在快门关闭时旋转时，去除附着在感光构件上的使用过的显影剂的异物。

9. 发明授权

US5371575A Electrophotographic image forming apparatus with detachable imaging cartridge 失效
标题翻译：具有可拆卸成像盒的电子照相图像形成装置
公开(公告)号：US5371575A
公开(公告)日：1994-12-06
申请号：US922755
申请日：1992-07-30
申请人： Hitoshi Sekino , Satoshi Yoshida , Narutaka Yoshida , Takashi Akazawa
发明人： Hitoshi Sekino , Satoshi Yoshida , Narutaka Yoshida , Takashi Akazawa
IPC分类号： G03G21/18 , G03G13/00
CPC分类号： G03G21/1817 , G03G21/1628 , G03G2215/1652 , G03G2221/1618 , G03G2221/1642 , G03G2221/1654 , G03G2221/1693 , G03G2221/1853
摘要： The present invention provides an image forming apparatus comprising a main assembly and an imaging cartridge detachable from the main assembly. The imaging cartridge includes a first unit and a second unit, both of which are separable form each other, a toner image carrier provided in the first unit, and a charging device provided in the second unit for transferring a toner image on the toner image carrier onto a copy sheet, wherein the charging device includes a charging roller. The present invention also provides an imaging cartridge detachable from the main assembly of an image forming apparatus. The imaging cartridge comprises a first unit and a second unit wherein the second unit is separable from the first unit, a toner image carrier provided in the first unit, and a charging device provided in the second unit for transferring a toner image on the toner image carrier onto a copy sheet.
摘要翻译：本发明提供了一种图像形成装置，包括可从主组件拆卸的主组件和成像盒。成像盒包括第一单元和第二单元，它们都可彼此分离，设置在第一单元中的调色剂图像载体，以及设置在第二单元中用于将调色剂图像转印到调色剂图像载体上的充电装置在复印纸上，其中充电装置包括充电辊。本发明还提供一种可从图像形成装置的主组件拆卸的成像盒。成像盒包括第一单元和第二单元，其中第二单元可与第一单元分离，设置在第一单元中的调色剂图像载体和设置在第二单元中的用于将调色剂图像转印到调色剂图像上的充电装置载体到复印纸上。

10. 发明授权

US5122817A Electrophotographic recorder using a modulated laser beam to scan the original 失效
标题翻译：电子照相记录仪采用调制激光束扫描原稿
公开(公告)号：US5122817A
公开(公告)日：1992-06-16
申请号：US750729
申请日：1991-08-20
申请人： Hirofumi Hasegawa , Naoto Ohmori , Yukio Yamada , Narutaka Yoshida
发明人： Hirofumi Hasegawa , Naoto Ohmori , Yukio Yamada , Narutaka Yoshida
IPC分类号： G03G15/04 , G03G15/041 , G03G15/22 , H04N1/00
CPC分类号： G03G15/221 , G03G15/04018 , H04N1/00254 , G03G15/041
摘要： An image forming apparatus comprising a laser beam radiating unit utilized as a light source, and an optical system that the surface of an original reflects a laser beam radiated from the radiating unit to project an image reflected from the original onto a photosensitive member. In this apparatus, an image is formed selectively in a print mode so that an image results from turning on and off the laser beam, in a copy mode that a copy of an original results from exposure of the photosensitive member to the laser beam reflected from the surface of an original or in a composite mode that a composite image is formed of a copy of an original and an image resulting from turning on and off the laser beam. Further, this apparatus comprises a projection lens unit for projecting an image reflected from an original onto the photosensitive member. The laser beam transmitting through the lens unit is scanned in the direction perpendicular to the main scanning direction, and altering the scanning speed and position of the lens unit results in various magnifications of an image.
摘要翻译：一种图像形成装置，包括用作光源的激光束照射单元，以及原始表面反射从辐射单元辐射的激光束以将从原稿反射的图像突出到感光构件上的光学系统。在该装置中，在打印模式中选择性地形成图像，使得在激光束的打开和关闭时产生图像，复制模式使原稿的拷贝从曝光的激光束到由原稿的表面或复合模式，合成图像由原稿的副本和通过打开和关闭激光束产生的图像形成。此外，该装置包括用于将从原稿反射的图像投影到感光构件上的投影透镜单元。通过透镜单元透射的激光束沿与主扫描方向垂直的方向被扫描，并且改变透镜单元的扫描速度和位置导致图像的各种放大。

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