公开(公告)号：US20080303886A1

公开(公告)日：2008-12-11

申请号：US12189660

申请日：2008-08-11

申请人： Katsunori YAMAZAKI ,  Yujiro NOMURA ,  Kiyoshi TSUJINO

发明人： Katsunori YAMAZAKI ,  Yujiro NOMURA ,  Kiyoshi TSUJINO

IPC分类号： G03G15/043

CPC分类号： B41J2/45 ,  G03G15/04072 ,  G03G15/043 ,  G03G15/326 ,  G03G2215/0409 ,  G03G2215/0412 ,  G06K15/1247

摘要： In a line head, a plurality of element arrays arranged in a first direction. Each array includes a plurality of light emission elements arrayed in a second direction which is perpendicularly to the first direction. The light emission elements emit light for forming an electrostatic talent image on a photosensitive surface of an image carrier. A switcher activates the light emission elements in at least one of the element arrays while deactivating the others. A developer develops the latent image as a visible image with toner.

摘要翻译： 在行头部中，沿着第一方向布置的多个元件阵列。 每个阵列包括沿垂直于第一方向的第二方向排列的多个发光元件。 发光元件发光以在图像载体的感光表面上形成静电天赋图像。 切换器激活元件阵列中的至少一个元件阵列中的发光元件，同时去激活其它元件阵列。 显影剂利用墨粉将潜像显影为可视图像。

公开(公告)号：US20080284839A1

公开(公告)日：2008-11-20

申请号：US12117626

申请日：2008-05-08

申请人： Kiyoshi TSUJINO ,  Yujiro NOMURA

发明人： Kiyoshi TSUJINO ,  Yujiro NOMURA

IPC分类号： B41J2/45

CPC分类号： B41J2/451 ,  B41J2/465

摘要： A line head, includes: a head substrate that includes a plurality of light emitting element groups as groups of light emitting elements; a lens array that includes a plurality of lenses each of which faces the corresponding light emitting element group in a first direction; and a light shielding member that is disposed between the head substrate and the lens array and includes a plurality of light shielding plates which are arranged side by side in the first direction while defining a space layer therebetween, wherein each of the plurality of light shielding plates is provided with a plurality of light guide holes penetrating in the first direction and facing the plurality of light emitting element groups in the first direction respectively, the plurality of light guide holes facing each of the light emitting element groups are arranged in the first direction respectively to form a plurality of light guide portions, and lights from the plurality of light emitting element groups are incident on the plurality of lenses through the plurality of light guide portions respectively.

摘要翻译： 行头，包括：头基板，其包括作为发光元件组的多个发光元件组; 透镜阵列，其包括多个透镜，每个透镜在第一方向上面对相应的发光元件组; 以及遮光部件，其设置在所述头部基板和所述透镜阵列之间，并且包括在所述第一方向上并排布置的多个遮光板，同时在其间限定空间层，其中所述多个遮光板 设置有沿第一方向贯穿并沿着第一方向面对多个发光元件组的多个导光孔，分别对应于每个发光元件组的多个导光孔沿第一方向 以形成多个导光部，并且来自多个发光元件组的光分别通过多个导光部入射到多个透镜上。

公开(公告)号：US20080240756A1

公开(公告)日：2008-10-02

申请号：US12133829

申请日：2008-06-05

申请人： Mitsukazu KUROSE ,  Yujiro NOMURA ,  Kiyoshi TSUJINO ,  Ken IKUMA

发明人： Mitsukazu KUROSE ,  Yujiro NOMURA ,  Kiyoshi TSUJINO ,  Ken IKUMA

IPC分类号： G03G15/043

CPC分类号： G06K15/12 ,  G06K19/07716 ,  G06K19/07718 ,  G06K19/07758

摘要： Provided is an exposure head controller that controls, via pulse width modulation control, the emission quantity of each light emitting element in an exposure head having a light emitting element array formed by arranging a plurality of light emitting elements in a main scanning direction and a sub scanning direction orthogonal thereto, comprising: a data retention unit that retains dot gathering control data showing whether to emit each light emitting element at the starting point side, terminal point side or in the middle of an emission period corresponding to a 1 pixel pitch in the sub scanning direction, or to divide and emit each light emitting element at the starting point side and terminal point side, emission time data showing the emission time of each light emitting element, and skew data showing the skew quantity of each light emitting element; a dot gathering operation circuit provided to each light emitting element and which operates the time in which the light emitting element is to be retained in a non-emission state from the starting point of the emission based on the dot gathering control data input from the data retention unit; a delay time measurement circuit that acquires the skew data from the data retention unit and acquires the non-emission time data showing the retention time in the non-emission state from the dot gathering operation circuit, adding these to seek the delay time to be set before starting the emission of the light emitting element, measuring the delay time, and outputting a prescribed signal after the lapse of the delay time; and an emission instruction circuit that outputs to a light emitting element drive circuit an emission instruction signal for instructing the emission of the light emitting element from the point in time the emission time data is acquired from the data retention unit and a prescribed signal is output from the delay time measurement circuit up to the elapse of the emission time indicated by the emission time data.

公开(公告)号：US20110150511A1

公开(公告)日：2011-06-23

申请号：US13031070

申请日：2011-02-18

申请人： Yujiro NOMURA ,  Ken IKUMA ,  Hiroshi TOYAMA

发明人： Yujiro NOMURA ,  Ken IKUMA ,  Hiroshi TOYAMA

IPC分类号： G03G15/043

CPC分类号： H04N1/506 ,  H04N1/113

摘要： The apparatus is adapted to deflect a light beam from a laser light source for each of the color components by means of a deflection mirror surface which oscillates, thereby making the light beam reciprocally scan in a main scanning direction. In this apparatus, however, only a light beam SL which scans in a first direction (+X) of the main scanning direction is irradiated in an effective image region on a photosensitive member, so as to form a latent image thereon. The resultant latent image is developed to form a toner image. Since image formation is performed using only the light beam SL which scans in the first direction (+X), the images may be formed at the consistent density irrespective of the image types. Furthermore, the scanning directions of the light beams SL for all the color components are uniformly defined to be the first direction (+X), so that the toner images of the respective colors may maintain the consistent density.

摘要翻译： 该装置适于通过振荡的偏转镜面来偏转来自激光光源的每个颜色分量的光束，从而使光束在主扫描方向上往复扫描。 然而，在该装置中，只有在主扫描方向的第一方向（+ X）上扫描的光束SL被照射在感光构件上的有效图像区域中，以便在其上形成潜像。 显影所得潜像以形成调色剂图像。 由于仅使用沿第一方向（+ X）扫描的光束SL执行图像形成，所以可以以一致的浓度形成图像，而与图像类型无关。 此外，用于所有颜色分量的光束SL的扫描方向被均匀地限定为第一方向（+ X），使得各种颜色的调色剂图像可以保持一致的密度。

公开(公告)号：US20110097120A1

公开(公告)日：2011-04-28

申请号：US12890144

申请日：2010-09-24

申请人： Yujiro NOMURA

发明人： Yujiro NOMURA

IPC分类号： G03G15/01

CPC分类号： G03G15/1615 ,  G03G2215/00556 ,  G03G2215/0626 ,  G03G2215/1614 ,  G03G2215/1666

摘要： An image forming apparatus including: a belt-shaped image carrier configured to carry an image; a first imaging unit configured to transfer a first image to the image carrier; a second imaging unit configured to transfer a second image to the image carrier on which the image is transferred by the first imaging unit; a drive roller configured to circulate the image carrier by winding the image carrier thereon; a roller on which the image carrier is wound; a transfer roller having a concaved portion on part of a circumferential surface thereof which comes into abutment with the image carrier wound around the roller via a recording material; a drive unit configured to drive the transfer roller; and a gripping portion disposed in the concaved portion and configured to grip the recording material.

摘要翻译： 一种图像形成装置，包括：被配置为承载图像的带状图像载体; 配置成将第一图像传送到图像载体的第一成像单元; 第二成像单元，被配置为将第二图像传送到由第一成像单元传送图像的图像载体; 驱动辊，其构造成通过在其上卷绕图像载体来循环图像载体; 卷绕图像载体的辊; 转印辊在其圆周表面的一部分上具有与通过记录材料缠绕在辊上的图像载体邻接的凹部; 构造成驱动所述转印辊的驱动单元; 以及设置在所述凹部中并构造成夹持所述记录材料的抓握部。

公开(公告)号：US20110044731A1

公开(公告)日：2011-02-24

申请号：US12854419

申请日：2010-08-11

申请人： Yujiro NOMURA ,  Yoshihisa SAKA

发明人： Yujiro NOMURA ,  Yoshihisa SAKA

IPC分类号： G03G15/01

CPC分类号： G03G15/1615

摘要： An image forming apparatus including: an image carrier that has a belt-like shape and carries an image; an image forming section that forms the image on the image carrier; a driving roller around which the image carrier is looped, the driving roller being rotationally driven by a first driving source to drive the image carrier; a roller around which the image carrier is looped; a transfer roller having a partially hollow peripheral surface and being rotationally driven by a second driving source, the transfer roller abutting on the image carrier to form a transfer nip at a position at which the image carrier is looped around the roller; a first tension roller that abuts on the image carrier between a position of the driving roller and a position of the roller to adjust a tensile force of the image carrier; and a second tension roller that abuts on the image carrier to adjust a tensile force of the image carrier, the second tension roller abutting on the image carrier on an abutting position opposite to that of the first tension roller so as to interpose the transfer nip between the first and second tension rollers.

摘要翻译： 一种图像形成装置，包括：具有带状形状并承载图像的图像载体; 图像形成部，其在图像载体上形成图像; 驱动辊，图像载体绕其周围，驱动辊由第一驱动源旋转驱动以驱动图像载体; 围绕图像载体环绕的辊; 转印辊具有部分中空的圆周表面并被第二驱动源旋转驱动，转印辊抵靠在图像载体上以在图像载体环绕辊的位置形成转印辊隙; 第一张紧辊，其在驱动辊的位置和辊的位置之间抵靠图像载体，以调节图像载体的张力; 以及第二张力辊，其邻接所述图像载体以调节所述图像载体的张力，所述第二张力辊在与所述第一张力辊的相反的抵接位置抵靠在所述图像载体上，以将所述传送辊隙介于 第一和第二张力辊。

公开(公告)号：US20100329744A1

公开(公告)日：2010-12-30

申请号：US12870637

申请日：2010-08-27

申请人： Yujiro NOMURA ,  Nozomu INOUE ,  Ryuta KOIZUMI ,  Ken IKUMA

发明人： Yujiro NOMURA ,  Nozomu INOUE ,  Ryuta KOIZUMI ,  Ken IKUMA

IPC分类号： G03G15/04

CPC分类号： B41J2/451 ,  G03G15/04045 ,  G03G2215/0409

摘要： A line head, includes: a microlens array in which a plurality of microlenses having a magnification whose absolute value is below 1 are arranged in a main scanning direction of a surface-to-be-scanned, and a plurality of luminous element groups which are arranged in a one-to-one correspondence with the respective plurality of microlenses, wherein in each of the plurality of luminous element groups, a plurality of luminous elements are arranged at mutually different main-scanning-direction positions in the main scanning direction, the plurality of luminous elements are respectively caused to emit lights at timings in conformity with a movement of the surface-to-be-scanned in a sub scanning direction, and light beams emitted from the plurality of luminous elements are imaged on the surface-to-be-scanned at mutually different main-scanning-direction positions in the main scanning direction to form a plurality of spots side by side on the surface-to-be-scanned in the main scanning direction, and in each of the plurality of luminous element groups, out of the plurality of luminous elements constituting the luminous element group, two luminous elements caused to emit lights to form adjacent spots are arranged at mutually different sub-scanning-direction positions in the sub scanning direction.

摘要翻译： 线头包括：微透镜阵列，其中具有绝对值小于1的倍率的多个微透镜被布置在待扫描表面的主扫描方向上，并且多个发光元件组是 与所述多个微透镜一一对应配置，其中在所述多个发光元件组中的每一个中，多个发光元件布置在主扫描方向上的相互不同的主扫描方向位置处， 分别使多个发光元件按照与副扫描方向上的被扫描表面的移动一致的定时发光，并且从多个发光元件发射的光束被成像在表面 - 在主扫描方向上的相互不同的主扫描方向位置被扫描，以在主扫描方向上的待扫描表面上并排地形成多个斑点 n，并且在所述多个发光体组中的每一个中，在构成所述发光元件组的所述多个发光元件中，在所述多个发光元件组中的相互不同的副扫描方向位置处布置使得发光以形成相邻光点的两个发光元件 副扫描方向。

公开(公告)号：US20100202800A1

公开(公告)日：2010-08-12

申请号：US12688645

申请日：2010-01-15

申请人： Takeshi SOWA ,  Yujiro NOMURA

发明人： Takeshi SOWA ,  Yujiro NOMURA

IPC分类号： G03G15/04 ,  B41J2/447

CPC分类号： B41J2/451 ,  G03G15/04045 ,  G03G15/326

摘要： A line head includes light-emitting elements arranged in a first direction; and an optical system that images light emitted from the light-emitting elements on a latent image carrier. The optical system including first and second lens surfaces having refractive power, the second lens surface being provided on a side of the first lens surface opposite to the light-emitting elements. In cross sections in the first and second directions including an optical axis of the optical system, the curvatures of the first and second lens surfaces satisfy the following relationships: |C1X| |C2Y| where, |C1X| and |C2X| are absolute values of the curvatures on the optical axis of the first and second lens surfaces on the cross section in the first direction, respectively; and |C1Y| and |C2Y| are absolute values of the curvatures on the optical axis of the first and second lens surfaces on the cross section in the second direction.

摘要翻译： 线头包括沿第一方向布置的发光元件; 以及将从发光元件发射的光成像在潜像载体上的光学系统。 所述光学系统包括具有屈光力的第一和第二透镜表面，所述第二透镜表面设置在与所述发光元件相对的所述第一透镜表面的一侧。 在包括光学系统的光轴的第一和第二方向的横截面中，第一和第二透镜表面的曲率满足以下关系：| C1X | <| C1Y |; 和| C2X |> | C2Y | | C1X | 和| C2X | 分别是在第一方向上的横截面上的第一和第二透镜表面的光轴上的曲率的绝对值; 和| C1Y | 和| C2Y | 是在第二方向上的横截面上的第一和第二透镜表面的光轴上的曲率的绝对值。

公开(公告)号：US20100080594A1

公开(公告)日：2010-04-01

申请号：US12567495

申请日：2009-09-25

申请人： Takeshi SOWA ,  Yujiro NOMURA ,  Ken IKUMA

发明人： Takeshi SOWA ,  Yujiro NOMURA ,  Ken IKUMA

IPC分类号： G03G15/043

CPC分类号： G03G15/043

摘要： An image forming apparatus includes: a latent image carrier; and an exposure head having light-emitting elements configured to emit light beams and form beam spots on the latent image carrier and image forming optical systems configured to form images of light beams emitted from the light-emitting elements arranged in a first direction and form group of beam spots on the latent image carrier, wherein the different image forming optical systems form the group of beam spots in an overlapped manner in the first direction, and the light-emitting elements include the light-emitting elements which define a first spot center distance Dsp—1 in the first direction and the light-emitting elements which define a second spot center distance Dsp—2 different from the first spot center distance in the first direction.

摘要翻译： 图像形成装置包括：潜像载体; 以及曝光头，其具有被配置为发射光束并在潜像载体上形成光束点的发光元件，以及被配置为形成从沿第一方向布置的发光元件发射的光束的图像的成像光学系统，并且形成组 在所述潜像载体上的光束点，其中所述不同的成像光学系统在所述第一方向上以重叠的方式形成所述一组光束点，并且所述发光元件包括限定第一光斑中心距离 Dsp-1和限定与第一方向上的第一点中心距离不同的第二点中心距离Dsp-2的发光元件。

公开(公告)号：US20090185828A1

公开(公告)日：2009-07-23

申请号：US12354579

申请日：2009-01-15

申请人： Ryuta KOIZUMI ,  Yujiro NOMURA ,  Takeshi SOWA ,  Ken IKUMA

发明人： Ryuta KOIZUMI ,  Yujiro NOMURA ,  Takeshi SOWA ,  Ken IKUMA

IPC分类号： G03G15/04 ,  G02B27/12

CPC分类号： G02B3/0056 ,  G02B3/0081 ,  G02B3/04 ,  G03G15/04072 ,  G03G15/0409 ,  G03G2215/0409 ,  G03G2215/0412

摘要： A lens array includes a light-transmissive substrate that satisfies the condition W1>W2, where W1 is the length of the light-transmissive substrate in a first direction and W2 is the length of the light-transmissive substrate in a second direction perpendicular to the first direction, a first lens that is provided on the light-transmissive substrate, and a second lens that is provided on the light-transmissive substrate on the second direction side of the first lens. The first lens and the second lens are connected to each other.

摘要翻译： 透镜阵列包括满足条件W1> W2的透光性基板，其中W1是第一方向上的透光性基板的长度，W2是与第二方向垂直的第二方向的透光性基板的长度 第一方向，设置在透光性基板上的第一透镜，以及设置在第一透镜的第二方向侧的透光性基板上的第二透镜。 第一透镜和第二透镜彼此连接。