公开(公告)号：US5239403A

公开(公告)日：1993-08-24

申请号：US621817

申请日：1990-12-04

申请人： Takashi Shiraishi ,  Masao Yamaguchi ,  Ken Omura ,  Naruhito Yoshida

发明人： Takashi Shiraishi ,  Masao Yamaguchi ,  Ken Omura ,  Naruhito Yoshida

IPC分类号： G02B5/09 ,  G02B26/12

CPC分类号： G02B5/09 ,  G02B26/121

摘要： An optical deflector is employed in an optical unit incorporated in a laser beam printer. The optical deflector reflects a laser beam, which is generated by a laser diode toward a photosensitive body and is made to have a cross section of desirable size by a group of conversion lenses. The optical deflector is provided with reflecting surfaces whose cross sections are convex in a main scanning direction. The number of reflecting surfaces is defined by 4.times.m (m: a natural number), and therefore the optical deflector has four or eight reflecting surfaces, for instance. Since the number of reflecting surfaces is defined by 4.times.m, reflecting surfaces can be positioned easily and reliably with reference to the center of the shaft.

摘要翻译： 在结合在激光束打印机中的光学单元中采用光学偏转器。 光学偏转器将由激光二极管产生的激光束反射到感光体，并通过一组转换透镜使其具有期望尺寸的横截面。 光学偏转器设有沿主扫描方向的横截面为凸的反射面。 反射面的数量由4×m（m：自然数）定义，因此例如，光偏转器具有4个或8个反射面。 由于反射面的数量为4×m，反射面相对于轴的中心容易且可靠地定位。

公开(公告)号：US5159193A

公开(公告)日：1992-10-27

申请号：US622018

申请日：1990-12-04

申请人： Takashi Shiraishi ,  Masao Yamaguchi ,  Ken Omura ,  Naruhito Yoshida

发明人： Takashi Shiraishi ,  Masao Yamaguchi ,  Ken Omura ,  Naruhito Yoshida

IPC分类号： G02B26/10 ,  B41J2/44 ,  B41J2/47 ,  G02B27/30

CPC分类号： B41J2/471

摘要： In an optical unit used for a laser beam printer, a laser beam generated by a laser diode is converted by a group of conversion lenses into a laser beam having a predetermined-size cross section. The laser beam is directed toward a photosensitive body by a scanner. A focusing lens allows the rotating angle of the reflecting faces of the scanner to correspond to a desirable point on the surface of the photosensitive body. In other words, the rotating angle is made to correspond to the distance between the optical axis center determined with respect to a main scanning direction and a point to which the laser beam is irradiated for scanning. The conversion lenses includes at least one aspheric glass lens arranged close to the laser diode. The glass lens and the laser diode are integrally held by a lens barrel which linearly expands in a predetermined manner in response to a temperature change. Since the distance between the glass lens and the laser diode is constantly equal in accordance with the temperature change, the laser beam is constantly allowed to have a cross section of desirable size, without reference to the temperature change.

摘要翻译： 在用于激光束打印机的光学单元中，由激光二极管产生的激光束由一组转换透镜转换成具有预定尺寸横截面的激光束。 激光束通过扫描器指向感光体。 聚焦透镜允许扫描仪的反射面的旋转角度对应于感光体表面上的期望点。 换句话说，使旋转角度对应于相对于主扫描方向确定的光轴中心与激光束照射到扫描的点之间的距离。 转换透镜包括靠近激光二极管设置的至少一个非球面玻璃透镜。 玻璃透镜和激光二极管由透镜筒一体地保持，透镜筒响应于温度变化以预定方式线性地膨胀。 由于玻璃透镜和激光二极管之间的距离根据温度变化恒定地相等，所以激光束被恒定地具有期望尺寸的横截面，而不考虑温度变化。

公开(公告)号：US08422901B2

公开(公告)日：2013-04-16

申请号：US13026945

申请日：2011-02-14

申请人： Kenji Ishii ,  Aldyasu Amita ,  Ken Omura ,  Kenichi Hasegawa ,  Hiroshi Yokoyama ,  Satoshi Ueno

发明人： Kenji Ishii ,  Aldyasu Amita ,  Ken Omura ,  Kenichi Hasegawa ,  Hiroshi Yokoyama ,  Satoshi Ueno

IPC分类号： G03G15/20

CPC分类号： G03G15/2042 ,  G03G15/2053 ,  G03G2215/2016 ,  G03G2215/2032

摘要： An image forming apparatus includes an image forming mechanism and an image fixing unit. The image forming mechanism forms a toner image on a recording sheet. The image fixing unit fixes the toner image onto the recording sheet. The image fixing unit includes a magnetic flux generator, a heat member, a magnetic flux adjuster, and a controlling member. The magnetic flux generator generates a magnetic flux. The heat member is heated inductively by the magnetic flux generated by the magnetic flux generator. The magnetic flux adjuster reduces the magnetic flux active on the heat member to form a heat reduction area in an outer circumferential surface of the heat member in a width direction thereof. The controlling member moves the magnetic flux adjuster to change the heat reduction area.

摘要翻译： 图像形成装置包括图像形成机构和图像定影单元。 图像形成机构在记录纸上形成调色剂图像。 图像定影单元将调色剂图像固定到记录片材上。 图像定影单元包括磁通发生器，加热构件，磁通量调节器和控制构件。 磁通发生器产生磁通量。 通过由磁通发生器产生的磁通感应加热部件。 磁通量调节器减小加热部件上的磁通量，从而在加热部件的宽度方向的外周面形成减热区域。 控制构件移动磁通量调节器以改变减热区域。

公开(公告)号：US20060029411A1

公开(公告)日：2006-02-09

申请号：US11184956

申请日：2005-07-20

申请人： Kenji Ishii ,  Akiyasu Amita ,  Ken Omura ,  Kenichi Hasegawa ,  Hiroshi Yokoyama ,  Satoshi Ueno

发明人： Kenji Ishii ,  Akiyasu Amita ,  Ken Omura ,  Kenichi Hasegawa ,  Hiroshi Yokoyama ,  Satoshi Ueno

IPC分类号： G03G15/20

CPC分类号： G03G15/2042 ,  G03G15/2053 ,  G03G2215/2016 ,  G03G2215/2032

摘要： An image forming apparatus includes an image forming mechanism and an image fixing unit. The image forming mechanism forms a toner image on a recording sheet. The image fixing unit fixes the toner image onto the recording sheet. The image fixing unit includes a magnetic flux generator, a heat member, a magnetic flux adjuster, and a controlling member. The magnetic flux generator generates a magnetic flux. The heat member is heated inductively by the magnetic flux generated by the magnetic flux generator. The magnetic flux adjuster reduces the magnetic flux active on the heat member to form a heat reduction area in an outer circumferential surface of the heat member in a width direction thereof. The controlling member moves the magnetic flux adjuster to change the heat reduction area.

公开(公告)号：US07885571B2

公开(公告)日：2011-02-08

申请号：US11520649

申请日：2006-09-14

申请人： Ken Omura

发明人： Ken Omura

IPC分类号： G03G15/00

CPC分类号： G03G15/5004 ,  G03G15/2039 ,  G03G2215/2016 ,  G03G2215/2032

摘要： An image forming apparatus includes an image forming mechanism configured to form a toner image on a recording medium with a toner according to image data and a fixing unit configured to fix the toner image on the recording medium. The fixing unit includes first and second heating members and a first heater. The first and second heating members are configured to apply heat to the recording medium having the toner image. The first heater is configured to heat the second heating member. The image forming apparatus further includes an auxiliary power source configured to drive the first heater.

摘要翻译： 图像形成装置包括：图像形成机构，被配置为根据图像数据在调色剂的记录介质上形成调色剂图像;以及定影单元，其被配置为将调色剂图像定影在记录介质上。 固定单元包括第一和第二加热构件和第一加热器。 第一和第二加热构件被构造成对具有调色剂图像的记录介质施加热量。 第一加热器构造成加热第二加热构件。 图像形成装置还包括被配置为驱动第一加热器的辅助电源。

公开(公告)号：US20050191098A1

公开(公告)日：2005-09-01

申请号：US11055636

申请日：2005-02-11

申请人： Satoshi Ueno ,  Ken Omura

发明人： Satoshi Ueno ,  Ken Omura

IPC分类号： G03G21/00 ,  G03G15/20

CPC分类号： G03G15/2042 ,  G03G15/2053 ,  G03G2215/20

摘要： A fixing apparatus and an image formation apparatus therewith are disclosed. According to the fixing apparatus, a heating range that is heated by electromagnetic induction caused by a current flowing through a coil unit is finely tunable by covering a part of a core unit with a shielding member. Further, the core unit has a projecting section at an end of the core unit, which projecting section projects toward the coil unit in comparison with the central part of the core unit.

摘要翻译： 公开了一种定影装置及其图像形成装置。 根据定影装置，通过由流过线圈单元的电流引起的电磁感应加热的加热范围通过用屏蔽构件覆盖芯单元的一部分来进行微调。 此外，芯单元在芯单元的端部具有突出部，该突出部与芯单元的中心部相比向着线圈单元突出。

公开(公告)号：US06328155B1

公开(公告)日：2001-12-11

申请号：US09456555

申请日：1999-12-08

申请人： Ken Omura ,  Yoshitsugu Nakatomi ,  Tsuyoshi Todome ,  Koichi Hiruta

发明人： Ken Omura ,  Yoshitsugu Nakatomi ,  Tsuyoshi Todome ,  Koichi Hiruta

IPC分类号： B65G2344

CPC分类号： G03G15/167 ,  G03G21/1647 ,  G03G21/168 ,  G03G2221/1603 ,  G03G2221/1642

摘要： An image forming apparatus is provided with a table unit which can be taken out to a front side in a state of opening a front cover of a main body. A transfer belt unit integrally constituted by a transfer belt, a drive roller, a driven roller, a transfer roller and the like is detachably set on the table unit. In the case of setting the transfer belt unit to the apparatus main body, the transfer belt unit is set on the table unit, the table unit is inserted into the apparatus main body, and the transfer belt unit is lifted up by rotating a handle so as to be brought into contact with the process unit. Accordingly, it is possible to easily attach and detach the transfer belt unit with respect to the apparatus main body, thereby simplifying a replacing operation.

摘要翻译： 图像形成装置设置有在打开主体的前盖的状态下能够被取出到前侧的工作台单元。 由转印带，驱动辊，从动辊，转印辊等一体地构成的转印带单元可拆卸地设置在工作台单元上。 在将转印带单元设置到装置主体的情况下，将转印带单元设置在桌子单元上，将桌子单元插入设备主体中，并且通过旋转手柄来提升转印带单元 以使其与处理单元接触。 因此，可以容易地将转印带单元相对于装置主体附接和拆卸，从而简化了更换操作。

公开(公告)号：US5956072A

公开(公告)日：1999-09-21

申请号：US982419

申请日：1997-12-02

申请人： Ken Omura

发明人： Ken Omura

IPC分类号： B41J2/47 ,  H04N1/113 ,  H04N1/12 ,  G02B26/08

CPC分类号： B41J2/473 ,  H04N1/1135 ,  H04N1/12

摘要： An optical scanner includes a light source to generate a light beam, a first optical unit to give a specified optical characteristic to the light beam emitted from the light source, a scanning unit including a rotatable member to scan a scanning object by applying the light beam passed through the first optical unit while rotating the rotatable member in a specified direction and a second optical unit to lead the light beam to form an image on a specified position of the scanning object; and a housing having a bottom portion to house the optical system, an opening portion provided at the side opposite to the bottom portion, a first reference surface that is used as a reference when the bottom side is set to a first external equipment and a second reference surface that is used as a reference when the opening side is set to a second external equipment.

摘要翻译： 一种光学扫描器，包括用于产生光束的光源，向从光源发射的光束赋予特定光学特性的第一光学单元;扫描单元，包括通过施加光束来扫描扫描物体的可旋转部件 通过第一光学单元同时沿指定方向旋转可旋转构件，并且第二光学单元引导光束以在扫描对象的指定位置上形成图像; 以及具有用于容纳光学系统的底部的壳体，设置在与底部相对的一侧的开口部分，当底侧被设置为第一外部设备时用作基准的第一参考表面和第二参考表面 参考表面，当开口侧设置为第二外部设备时用作参考。

公开(公告)号：US5267075A

公开(公告)日：1993-11-30

申请号：US855520

申请日：1992-03-20

申请人： Masao Yamaguchi ,  Ken Omura

发明人： Masao Yamaguchi ,  Ken Omura

IPC分类号： G02B26/10 ,  G02B26/12 ,  G02B27/00 ,  G02B26/08

CPC分类号： G02B26/12 ,  G02B27/0031

摘要： An optical unit includes a primary lens for converging a laser beam L emitted from a semiconductor laser element, a cylindrical lens for further converging the converged laser beam, and first and second plastic lenses having optical characteristics offsetting each other in at least one of first and second directions perpendicular to each other. By virtue of the primary lens and cylindrical lens, devices included in the optical deflector on the front side thereof can be made small, and also the arrangement of the lenses can be simplified. Devices of the same on the rear side thereof incorporate lenses including a planar surface, which reduces the required manufacturing cost.

公开(公告)号：US20110176822A1

公开(公告)日：2011-07-21

申请号：US13026945

申请日：2011-02-14

申请人： Kenji ISHII ,  Aldyasu Amita ,  Ken Omura ,  Kenichi Hasegawa ,  Hiroshi Yokoyama ,  Satoshi Ueno

发明人： Kenji ISHII ,  Aldyasu Amita ,  Ken Omura ,  Kenichi Hasegawa ,  Hiroshi Yokoyama ,  Satoshi Ueno

IPC分类号： G03G15/20 ,  G03G13/20

CPC分类号： G03G15/2042 ,  G03G15/2053 ,  G03G2215/2016 ,  G03G2215/2032

摘要： An image forming apparatus includes an image forming mechanism and an image fixing unit. The image forming mechanism forms a toner image on a recording sheet. The image fixing unit fixes the toner image onto the recording sheet. The image fixing unit includes a magnetic flux generator, a heat member, a magnetic flux adjuster, and a controlling member. The magnetic flux generator generates a magnetic flux. The heat member is heated inductively by the magnetic flux generated by the magnetic flux generator. The magnetic flux adjuster reduces the magnetic flux active on the heat member to form a heat reduction area in an outer circumferential surface of the heat member in a width direction thereof. The controlling member moves the magnetic flux adjuster to change the heat reduction area.

摘要翻译： 图像形成装置包括图像形成机构和图像定影单元。 图像形成机构在记录纸上形成调色剂图像。 图像定影单元将调色剂图像固定到记录片材上。 图像定影单元包括磁通发生器，加热构件，磁通量调节器和控制构件。 磁通发生器产生磁通量。 通过由磁通发生器产生的磁通感应加热部件。 磁通量调节器减小加热部件上的磁通量，从而在加热部件的宽度方向的外周面形成减热区域。 控制构件移动磁通量调节器以改变减热区域。