公开(公告)号：US20070064087A1

公开(公告)日：2007-03-22

申请号：US11521560

申请日：2006-09-15

申请人： Iwao Matsumae ,  Yoshinobu Sakaue ,  Kazunori Bannai

发明人： Iwao Matsumae ,  Yoshinobu Sakaue ,  Kazunori Bannai

IPC分类号： B41J15/14

CPC分类号： G03G15/011 ,  G03G2215/0119 ,  G03G2215/0158

摘要： A beam detecting unit detects at least one of a position of an optical beam in a sub scanning direction and a position of the optical beam in a main scanning direction. A color-misalignment correcting unit changes an optical-beam irradiating position on a photosensitive element based on a result of detection by the beam detecting unit. The beam detecting unit is arranged between an optical element that is closest to a corresponding photosensitive element and the corresponding photosensitive element.

摘要翻译： 光束检测单元检测光束在副扫描方向上的位置和光束在主扫描方向上的位置中的至少一个。 颜色对准校正​​单元基于光束检测单元的检测结果来改变感光元件上的光束照射位置。 光束检测单元布置在最靠近相应感光元件的光学元件和相应的光敏元件之间。

公开(公告)号：US09494793B2

公开(公告)日：2016-11-15

申请号：US13716782

申请日：2012-12-17

申请人： Nobuyuki Arai ,  Makoto Hirakawa ,  Yoshinobu Sakaue ,  Noboru Kusunose ,  Tomoya Fujii

发明人： Nobuyuki Arai ,  Makoto Hirakawa ,  Yoshinobu Sakaue ,  Noboru Kusunose ,  Tomoya Fujii

IPC分类号： G02B26/12 ,  G02B7/02 ,  B41J2/44

CPC分类号： G02B26/124 ,  B41J2/44 ,  B41J2/442 ,  G02B7/02 ,  G02B7/021 ,  G02B26/123

摘要： In a light beam scanning device, a plurality of light sources, which irradiates a plurality of light beams in a first direction and is retained by a holder, are disposed at distance from one another in a second direction orthogonal to the first direction. The plurality of light beams are incident, via a coupling optical system, to deflecting and reflecting surfaces of a deflector from a direction that is tilted with respect to a plane orthogonal to the rotational shaft of the deflector. The holder is supported by a housing of the light beam scanning device at a plurality of different positions in a third direction extending from the light source to the coupling optical system.

摘要翻译： 在光束扫描装置中，在与第一方向正交的第二方向上彼此间隔地设置有多个光束，其以第一方向照射多个光束并被保持器保持。 多个光束通过耦合光学系统入射到偏转器的偏转和反射表面，该偏转和反射表面相对于与偏转器的旋转轴正交的平面倾斜。 保持器由光束扫描装置的壳体在从光源延伸到耦合光学系统的第三方向上的多个不同位置处支撑。

公开(公告)号：US07986334B2

公开(公告)日：2011-07-26

申请号：US12230987

申请日：2008-09-09

申请人： Kazunori Bannai ,  Hideto Higaki ,  Daisuke Imaki ,  Noboru Kusunose ,  Yoshinobu Sakaue

发明人： Kazunori Bannai ,  Hideto Higaki ,  Daisuke Imaki ,  Noboru Kusunose ,  Yoshinobu Sakaue

IPC分类号： B41J2/47 ,  B41J27/00

CPC分类号： B41J2/473 ,  G02B26/123 ,  G03G15/04036 ,  G03G15/0409 ,  G03G15/0435

摘要： An image forming apparatus includes a plurality of image carriers and an optical writing device including light sources that emit light beams of different wavelengths, a deflector that deflects the light beams emitted from the light sources and synthesized on an identical axis in a sub-scanning direction, a first beam separator, a second beam separator, a first imaging device, and a second imaging device. The first beam separator and the second beam separator are located between the first imaging device and the second imaging device and transmit or reflect the light beams according to travel directions or wavelengths thereof. One of the targets is scanned with the light beam transmitted through the second beam separator. Another target is scanned with the light beam reflected by the second and first beam separators. The first and second imaging devices narrow the beams in the main scanning direction and the sub-scanning direction, respectively.

摘要翻译： 图像形成装置包括多个图像载体和包括发射不同波长的光束的光源的光学写入装置，偏转器，其使从光源射出的光束在副扫描方向上在同一轴上合成 第一光束分离器，第二光束分离器，第一成像装置和第二成像装置。 第一光束分离器和第二光束分离器位于第一成像装置和第二成像装置之间，并根据其行进方向或波长透射或反射光束。 用通过第二光束分离器传输的光束扫描其中一个目标。 用第二和第一光束分离器反射的光束扫描另一个目标。 第一和第二成像装置分别在主扫描方向和副扫描方向上使光束变窄。

公开(公告)号：US07450146B2

公开(公告)日：2008-11-11

申请号：US11503964

申请日：2006-08-15

申请人： Yoshinobu Sakaue ,  Kazunori Bannai

发明人： Yoshinobu Sakaue ,  Kazunori Bannai

IPC分类号： B41J2/435 ,  G02B26/08

CPC分类号： G02B26/10 ,  H04N1/1135 ,  H04N1/506 ,  H04N2201/0458

摘要： An optical scanning device includes a plurality of light sources, a deflector, optical systems, and a plurality of light shielding units to shield flare light from an opposite optical system. Two light shielding units are arranged not to satisfy θ=n(360/x) degrees, where θ is an angle formed by a line from a portion of one light shielding unit nearest the deflector to a rotation axis of the deflector and a line from a portion of the other light shielding unit nearest the deflector to the rotation axis of the deflector with the rotation axis of the deflector being an apex angle, x is the number of mirror faces of the deflector, and n is an integer not more than x.

摘要翻译： 光学扫描装置包括多个光源，偏转器，光学系统和多个遮光单元，用于屏蔽来自相对的光学系统的光束。 两个遮光单元被布置为不满足θ= n（360 / x）度，其中θ是由最靠近偏转器的一个遮光单元的一部分到偏转器的旋转轴线的线形成的角度， 另一个遮光单元的最靠近偏转器的偏转器的旋转轴线的偏转器的旋转轴线的一部分是顶角，x是偏转器的镜面数，n是不大于x的整数 。

公开(公告)号：US20080225304A1

公开(公告)日：2008-09-18

申请号：US12073884

申请日：2008-03-11

申请人： Yoshinobu Sakaue ,  Noboru Kusunose ,  Hideto Higaki

发明人： Yoshinobu Sakaue ,  Noboru Kusunose ,  Hideto Higaki

IPC分类号： G01B11/14

CPC分类号： H04N1/1135 ,  G03G15/0435 ,  G03G2215/0404 ,  H04N1/0473 ,  H04N1/12 ,  H04N2201/0082 ,  H04N2201/04713 ,  H04N2201/04732 ,  H04N2201/04744

摘要： An optical scanning unit includes first and second light beam generators, a deflector, a beam detector, and an optical element. The first and second light beam generators respectively emit a first and second light beam. The deflector deflects the first and second light beams in a main scanning direction and to scan a surface of first and second photosensitive members using the first and second light beams respectively. The beam detector detects both of the first and second light beams deflected by the deflector. The beam detector detects a light beam position of the first and second light beams in a sub-scanning direction. The optical element is disposed along an optical path for the first and second light beams starting from the first and second light beam generators to the deflector to set a light incoming angle striking the deflector same for the first and second light beams.

摘要翻译： 光学扫描单元包括第一和第二光束发生器，偏转器，光束检测器和光学元件。 第一和第二光束发生器分别发射第一和第二光束。 偏转器在主扫描方向上偏转第一和第二光束并且分别使用第一和第二光束扫描第一和第二光敏元件的表面。 光束检测器检测由偏转器偏转的第一和第二光束。 光束检测器检测第一和第二光束在副扫描方向上的光束位置。 光学元件沿着从第一和第二光束发生器到偏转器的第一和第二光束的光路设置，以将与第一和第二光束相同的光入射角设置成相同的偏转器。

公开(公告)号：US20080024851A1

公开(公告)日：2008-01-31

申请号：US11822820

申请日：2007-07-10

申请人： Yoshinobu Sakaue ,  Kazunori Bannai ,  Iwao Matsumae ,  Noboru Kusunose

发明人： Yoshinobu Sakaue ,  Kazunori Bannai ,  Iwao Matsumae ,  Noboru Kusunose

IPC分类号： G02B26/12 ,  G02B26/10

CPC分类号： G02B26/127 ,  G02B27/0031 ,  G06K15/1219

摘要： An optical scanning device includes a polygon mirror, a beam detector, a correcting unit, and a controller. The polygon mirror deflects and scans a light beam in a main scanning direction on a surface of an image carrier. The beam detector detects a beam position of the deflected light beam in a sub-scanning direction. The correcting unit calculates a correction amount of out-of-color registration based on the beam position, and corrects out-of-color registration in the sub-scanning direction based on the correction amount. The controller controls, during correction of out-of-color registration, a deflection speed of the deflector to be less than a deflection speed for writing a latent image on the surface of the image carrier.

摘要翻译： 光学扫描装置包括多面镜，光束检测器，校正单元和控制器。 多面镜在图像载体的表面上沿主扫描方向偏转和扫描光束。 光束检测器检测偏转光束在副扫描方向上的光束位置。 校正单元基于光束位置计算出彩色对准的校正量，并且基于校正量来校正副扫描方向上的彩色外注册。 控制器在校正彩色对准期间控制偏转器的偏转速度小于将图像写入图像载体的表面上的偏转速度。

公开(公告)号：US07215349B2

公开(公告)日：2007-05-08

申请号：US10984930

申请日：2004-11-10

申请人： Yoshinobu Sakaue ,  Kazunori Bannai ,  Kozo Yamazaki

发明人： Yoshinobu Sakaue ,  Kazunori Bannai ,  Kozo Yamazaki

IPC分类号： G02B26/10

CPC分类号： G03G15/011 ,  G03G13/04 ,  G03G21/20 ,  G03G2215/04

摘要： An image forming apparatus includes a first support member, an image carrying member configured to carry a toner image thereon, and an optical writing apparatus connected to the first support member and configured to form an electrostatic latent image on the image carrying member. The optical writing apparatus includes an optical system having at least one optical element, a first casing configured to support the optical system, and a second casing configured to encase the first casing and to prevent intrusion of dust to the optical system.

公开(公告)号：US20070053040A1

公开(公告)日：2007-03-08

申请号：US11503964

申请日：2006-08-15

申请人： Yoshinobu Sakaue ,  Kazunori Bannai

发明人： Yoshinobu Sakaue ,  Kazunori Bannai

IPC分类号： G02B26/08

CPC分类号： G02B26/10 ,  H04N1/1135 ,  H04N1/506 ,  H04N2201/0458

摘要： An optical scanning device includes a plurality of light sources, a deflector, optical systems, and a plurality of light shielding units to shield flare light from an opposite optical system. Two light shielding units are arranged not to satisfy θ=n(360/x) degrees, where θ is an angle formed by a line from a portion of one light shielding unit nearest the deflector to a rotation axis of the deflector and a line from a portion of the other light shielding unit nearest the deflector to the rotation axis of the deflector with the rotation axis of the deflector being an apex angle, x is the number of mirror faces of the deflector, and n is an integer not more than x.

摘要翻译： 光学扫描装置包括多个光源，偏转器，光学系统和多个遮光单元，用于屏蔽来自相对的光学系统的光束。 两个遮光单元被布置为不满足θ= n（360 / x）度，其中θ是由最靠近偏转器的一个遮光单元的一部分到偏转器的旋转轴线的线形成的角度， 另一个遮光单元的最靠近偏转器的偏转器的旋转轴线的偏转器的旋转轴线的一部分是顶角，x是偏转器的镜面数，n是不大于x的整数 。