公开(公告)号：US07333758B2

公开(公告)日：2008-02-19

申请号：US11334738

申请日：2006-01-18

申请人： Manabu Munakata ,  Yujiro Nomura ,  Ken Ikuma

发明人： Manabu Munakata ,  Yujiro Nomura ,  Ken Ikuma

IPC分类号： G03G15/01

CPC分类号： G03G15/0194 ,  G03G2215/0119 ,  G03G2215/0132 ,  G03G2215/0161 ,  G03G2215/0193

摘要： An image forming apparatus capable of changing over between black printing and color printing with an intermediate transfer belt being brought into contact with and separated from photoconductors by means of a black transfer member and a three-color-integrated color transfer member. The image forming apparatus has a registration mark former for forming registration marks on the intermediate transfer belt, a registration sensor for reading the registration marks, and a controller for controlling the registration mark former based on the registration marks read by the registration sensor, so as to adjust registration. The controller has an adjustment mode to adjust registration between black and color.

摘要翻译： 能够通过黑色转印构件和三色集成颜色转印构件与中间转印带接触并与光电导体分离的能够在黑色印刷和彩色印刷之间切换的图像形成装置。 图像形成装置具有用于在中间转印带上形成对准标记的对准标记形成体，用于读取对位标记的对位传感器，以及基于由对位传感器读取的对准标记来控制对准标记形成体的控制器， 调整注册。 控制器具有调整黑色和彩色对位的调整模式。

公开(公告)号：US07167664B2

公开(公告)日：2007-01-23

申请号：US11001580

申请日：2004-12-01

申请人： Yujiro Nomura ,  Ken Ikuma ,  Manabu Munakata

发明人： Yujiro Nomura ,  Ken Ikuma ,  Manabu Munakata

IPC分类号： G03G15/00

CPC分类号： G03G15/757 ,  G03G2215/0158 ,  G03G2215/017

摘要： An image forming apparatus, includes a plurality of image bearing members, respectively provided with image bearing member pulleys coaxially for rotating in one body with the corresponding image bearing members; an idler pulley, disposed between the image bearing members; a single drive belt, wound over the image bearing member pulleys for rotatively driving the image bearing member pulleys; and a tension pulley, adjusting a tension of the drive belt. An image write-to-transfer time of the image bearing member which is disposed on a side closer to the tension pulley than the idler pulley is set integer times of a rotation period of the idler pulley.

摘要翻译： 一种图像形成装置，包括多个图像承载部件，分别设置有图像承载部件皮带轮，同轴地与一个主体一起转动与图像承载部件; 设置在图像承载部件之间的惰轮; 单个驱动带，缠绕在图像承载部件滑轮上，用于旋转地驱动图像承载部件滑轮; 和张紧轮，调节传动带的张力。 设置在比惰轮更靠近张力带轮的一侧的图像承载部件的图像转印时间被设定为惰轮的旋转周期的整数倍。

公开(公告)号：US20060182472A1

公开(公告)日：2006-08-17

申请号：US11334738

申请日：2006-01-18

申请人： Manabu Munakata ,  Yujiro Nomura ,  Ken Ikuma

发明人： Manabu Munakata ,  Yujiro Nomura ,  Ken Ikuma

IPC分类号： G03G15/01

CPC分类号： G03G15/0194 ,  G03G2215/0119 ,  G03G2215/0132 ,  G03G2215/0161 ,  G03G2215/0193

摘要： An image forming apparatus capable of changing over between black printing and color printing with an intermediate transfer belt being brought into contact with and separated from photoconductors by means of a black transfer member and a three-color-integrated color transfer member. The image forming apparatus has a registration mark former for forming registration marks on the intermediate transfer belt, a registration sensor for reading the registration marks, and a controller for controlling the registration mark former based on the registration marks read by the registration sensor, so as to adjust registration. The controller has an adjustment mode to adjust registration between black and color.

摘要翻译： 能够通过黑色转印构件和三色集成颜色转印构件与中间转印带接触并与光电导体分离的能够在黑色印刷和彩色印刷之间切换的图像形成装置。 图像形成装置具有用于在中间转印带上形成对准标记的对准标记形成体，用于读取对位标记的对位传感器，以及基于由对位传感器读取的对准标记来控制对准标记形成体的控制器， 调整注册。 控制器具有调整黑色和彩色对位的调整模式。

公开(公告)号：US20050158078A1

公开(公告)日：2005-07-21

申请号：US11001580

申请日：2004-12-01

申请人： Yujiro Nomura ,  Ken Ikuma ,  Manabu Munakata

发明人： Yujiro Nomura ,  Ken Ikuma ,  Manabu Munakata

IPC分类号： G03G15/00

CPC分类号： G03G15/757 ,  G03G2215/0158 ,  G03G2215/017

摘要： An image forming apparatus, includes a plurality of image bearing members, respectively provided with image bearing member pulleys coaxially for rotating in one body with the corresponding image bearing members; an idler pulley, disposed between the image bearing members; a single drive belt, wound over the image bearing member pulleys for rotatively driving the image bearing member pulleys; and a tension pulley, adjusting a tension of the drive belt. An image write-to-transfer time of the image bearing member which is disposed on a side closer to the tension pulley than the idler pulley is set integer times of a rotation period of the idler pulley.

摘要翻译： 一种图像形成装置，包括多个图像承载部件，分别设置有图像承载部件皮带轮，同轴地与一个主体一起转动与图像承载部件; 设置在图像承载部件之间的惰轮; 单个驱动带，缠绕在图像承载部件滑轮上，用于旋转地驱动图像承载部件滑轮; 和张紧轮，调节传动带的张力。 设置在比惰轮更靠近张力带轮的一侧的图像承载部件的图像转印时间被设定为惰轮的旋转周期的整数倍。

公开(公告)号：US08300076B2

公开(公告)日：2012-10-30

申请号：US12764495

申请日：2010-04-21

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： B41J15/14 ,  B41J27/00

CPC分类号： B41J2/45

摘要： A line head, includes: a substrate which is provided with a plurality of luminous element groups which respectively include a plurality of luminous elements in a first direction which emit light beams; a lens array which includes a plurality of imaging lenses which are provided corresponding to the plurality of luminous element groups; and a light shielding member which is disposed between the substrate and the lens array and includes a plurality of light guiding holes which correspond to the plurality of luminous element groups, wherein the lens array is away from the light shielding member, an inner diameter of each of the plurality of light guiding holes in the first direction is a first light guiding hole diameter, and a bore diameter of each of the plurality of imaging lenses in the first direction is a first lens diameter, and the first light guiding hole diameter is smaller than the first lens diameter.

摘要翻译： 行头包括：基板，其设置有分别包括发射光束的第一方向上的多个发光元件的多个发光元件组; 透镜阵列，其包括对应于所述多个发光元件组而设置的多个成像透镜; 以及遮光构件，其设置在所述基板和所述透镜阵列之间，并且包括与所述多个发光元件组对应的多个导光孔，其中所述透镜阵列远离所述遮光构件，每个所述透镜阵列的内径 在第一方向上的多个导光孔的长度为第一导光孔直径，第一方向上的多个摄像透镜的孔径为第一透镜直径，第一导光孔直径较小 比第一透镜直径。

公开(公告)号：US08194106B2

公开(公告)日：2012-06-05

申请号：US12603424

申请日：2009-10-21

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： B41J2/44 ,  G02B26/10

CPC分类号： G03G15/326 ,  B41J2/45 ,  G03G15/04072 ,  G03G2215/0407 ,  G03G2215/0451

摘要： A line head includes multiple light emitting element groups each including multiple light emitting elements. In each light emitting element group, the multiple light emitting elements are disposed in a two-dimensional arrangement so that a distance Gx is greater than a distance Gy. The light emitting element groups are arranged so that pitches Px are greater than pitches Py.

摘要翻译： 线头包括多个发光元件组，每个发光元件组包括多个发光元件。 在每个发光元件组中，多个发光元件以二维排列设置，使得距离Gx大于距离Gy。 发光元件组被布置成使得间距Px大于间距Py。

公开(公告)号：US08089499B2

公开(公告)日：2012-01-03

申请号：US12403689

申请日：2009-03-13

申请人： Takeshi Sowa ,  Yujiro Nomura ,  Ken Ikuma

发明人： Takeshi Sowa ,  Yujiro Nomura ,  Ken Ikuma

IPC分类号： B41J2/45

CPC分类号： B41J2/451

摘要： An exposure head, includes: a substrate that is provided with a first light emitting element, a second light emitting element that is arranged at one side of the first light emitting element in a first direction and a third light emitting element that is arranged at the one side of the second light emitting element in the first direction, the first light emitting element and the second light emitting element being arranged at a first distance from each other in the first direction, the second light emitting element and the third light emitting element being arranged at a second distance, which is different from the first distance, from each other in the first direction; and an imaging optical system that images light from the first, the second and the third light emitting elements.

摘要翻译： 曝光头包括：设置有第一发光元件的基板，在第一方向上布置在第一发光元件的一侧的第二发光元件和布置在第一发光元件的第三发光元件 在第一方向上的第二发光元件的一侧，第一发光元件和第二发光元件沿第一方向彼此相隔第一距离，第二发光元件和第三发光元件是 以与所述第一距离不同的第二距离布置在所述第一方向上; 以及成像光学系统，其对来自第一，第二和第三发光元件的光进行成像。

公开(公告)号：US07995084B2

公开(公告)日：2011-08-09

申请号：US11970450

申请日：2008-01-07

申请人： Yujiro Nomura ,  Ken Ikuma

发明人： Yujiro Nomura ,  Ken Ikuma

IPC分类号： B41J2/45

CPC分类号： B41J2/451

摘要： A line head, includes: a plurality of luminous elements grouped into a plurality of luminous element groups; and a lens array which includes a plurality of lenses each of which faces the luminous element group, focuses light beams emitted from the luminous element group on an image plane, and accordingly forms a spot group, wherein the plurality of luminous element groups are arrayed in M×N in a first direction and in a second direction which are different from each other, where M and N are integers equal to or greater than two, and spot groups adjacent to each other in a direction corresponding to the first direction are so formed on the image plane as to partly overlap in a direction corresponding to the second direction.

摘要翻译： 线头包括：多个发光元件，分组成多个发光元件组; 以及透镜阵列，其包括面向所述发光元件组的多个透镜，将从所述发光元件组发射的光束聚焦在像平面上，并且因此形成点组，其中所述多个发光元件组排列在 M×N在第一方向和第二方向上彼此不同，其中M和N是等于或大于2的整数，并且在与第一方向相对的方向上彼此相邻的点组被形成 在图像平面上在与第二方向相对应的方向上部分重叠。

公开(公告)号：US07952600B2

公开(公告)日：2011-05-31

申请号：US11835282

申请日：2007-08-07

申请人： Kunihiro Kawada ,  Yujiro Nomura ,  Motomu Hayakawa ,  Teruyuki Inukai ,  Ken Ikuma

发明人： Kunihiro Kawada ,  Yujiro Nomura ,  Motomu Hayakawa ,  Teruyuki Inukai ,  Ken Ikuma

IPC分类号： B41J2/45

CPC分类号： B41J2/451 ,  G03G15/04072 ,  G03G15/0435 ,  G03G15/326

摘要： The invention provides an image forming apparatus and an image forming method capable of smoothly and reasonably conducting image formation in case of using a lens (lenses) of which optical magnification is minus. An image forming apparatus of the invention comprises: a line head having lenses of which optical magnification is minus and a light emitter array in which a plurality of light emitting elements are aligned. The lenses are plural in an axial direction (main scanning direction) of an image carrier and a direction (sub scanning direction) perpendicular to the axial direction. A light emitter block composed of “m×n” (in number) light emitting elements is disposed relative to each lens. The “m×n” light emitting elements comprises “n” (in number) light emitting element lines arranged in the direction perpendicular to the axial direction and each light emitting element line includes “m” (in number) light emitting elements aligned in the axial direction. The image forming apparatus further comprises: a control means for actuating the respective light emitting elements to emit lights to be inversed in the axial direction and the direction perpendicular to the axial direction to form an image on the image carrier. In this manner, images of plural colors are formed on the image carrier at once.

摘要翻译： 本发明提供一种在使用光学倍率为负的透镜（透镜）的情况下能够平滑且合理地进行图像形成的图像形成装置和图像形成方法。 本发明的图像形成装置包括：具有光学倍率为负的透镜的行头和多个发光元件对准的发光体阵列。 透镜在图像载体的轴向（主扫描方向）和垂直于轴向的方向（副扫描方向）上是多个的。 由“m×n”（数量）的发光元件构成的发光体块相对于各透镜配置。 “m×n”个发光元件包括在与轴向垂直的方向上排列的“n”（多个）发光元件线，并且每个发光元件线包括“m”（数量上）发光元件 轴向。 图像形成装置还包括：控制装置，用于致动各个发光元件以发射在轴向方向和与轴向方向垂直的方向反转的光，以在图像载体上形成图像。 以这种方式，立即在图像载体上形成多种颜色的图像。

公开(公告)号：US07815276B2

公开(公告)日：2010-10-19

申请号：US12138266

申请日：2008-06-12

申请人： Hiroshi Toyama ,  Yujiro Nomura ,  Ken Ikuma

发明人： Hiroshi Toyama ,  Yujiro Nomura ,  Ken Ikuma

IPC分类号： B41J2/205

CPC分类号： B41J2/471 ,  G02B26/105 ,  H04N1/40037 ,  H04N1/4055

摘要： An image forming method using an image forming apparatus including: a latent image carrier whose surface is driven in a sub scanning direction; a deflector which scans a beam spot reciprocally in a main scanning direction substantially perpendicular to the sub scanning direction on the surface of the latent image carrier in the use of an oscillating deflect mirror so as to form spot latent images each of which formed on a pixel; developer which develops each of the spot latent images as a pixel-dot, the method includes of: halftoning for a tone reproduction in which a halftone-dot constituted by the pixel-dot(s) is formed on a cell consisting plural pixels according to a fattening type threshold matrix, wherein a plurality of cells are contiguously arranged in the main scanning direction so as to form a plurality of contiguous locations at each of which the cells adjoin mutually in the main scanning direction, each cell includes a larger-than-four even number of pixels in the sub scanning direction, and the cells, which mutually adjoin at a particular contiguous location out of the plurality of contiguous locations, are mutually shifted by an odd number of pixel(s) in the sub scanning direction.

摘要翻译： 一种使用图像形成装置的图像形成方法，包括：潜像载体，其表面沿副扫描方向驱动; 偏转器，其使用振荡偏转镜，在潜像载体的表面上基本上垂直于副扫描方向的主扫描方向上往复地扫描光束点，以形成每个形成在像素上的点潜像 ; 显影剂将每个点潜像显影为像素点，该方法包括：对于由多个像素构成的单元形成由像素点构成的半色调点的色调再现的半色调，根据 育肥型阈值矩阵，其中多个单元在主扫描方向上连续排列，以便在每个单元在主扫描方向上相互相邻地形成多个连续位置，每个单元包括大于 在子扫描方向上的四个偶数个像素，并且在多个相邻位置中的特定连续位置处相互邻接的单元在副扫描方向上相互移位奇数个像素。