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：US07116457B2

公开(公告)日：2006-10-03

申请号：US11042811

申请日：2005-01-25

申请人： Yujiro Nomura ,  Ken Ikuma

发明人： Yujiro Nomura ,  Ken Ikuma

IPC分类号： G02B26/08

CPC分类号： G02B7/1821 ,  B41J2/471 ,  G02B26/0841 ,  G02B26/085 ,  G02B26/105

摘要： In an optical scanning apparatus in which a movable plate 653 pivots at a high speed, friction between the movable plate 653 and air generates heat. The amount of generated heat is relatively large in a main scanning direction but relatively small in a direction of a pivot axis. A light beam is converged in a sub scanning direction Y within a sub-scanning surface, and is focused as a line image in the vicinity of a deflection mirror surface 651 in a deflector 65. This reduces the size of the deflection mirror surface 651 in the direction Y of the pivot axis (the sub scanning direction). Meanwhile, a second distance is longer than a first distance in the main scanning direction, and the movable plate 653 and vertical side portions (second adjacent portions) 652b are widely apart from each other in the main scanning direction X. This reduces air resistance against the movable plate 653, and hence, the amount of heat generation.

摘要翻译： 在可动板653高速旋转的光学扫描装置中，可移动板653与空气之间的摩擦产生热量。 所产生的热量在主扫描方向上相对较大，但在枢轴方向上相对较小。 光束在副扫描表面内沿副扫描方向Y会聚，并且在偏转器65中的偏转镜表面651附近被聚焦成线图像。 这样可以减小偏转镜表面651在枢转轴线（副扫描方向）的方向Y上的尺寸。 同时，第二距离长于主扫描方向上的第一距离，并且可动板653和垂直侧部分（第二相邻部分）652b在主扫描方向X上彼此分开。这降低了空气阻力 抵靠可动板653，因此发热量。

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：US20060017795A1

公开(公告)日：2006-01-26

申请号：US11179043

申请日：2005-07-11

申请人： Yujiro Nomura ,  Ken Ikuma ,  Hiroshi Toyama

发明人： Yujiro Nomura ,  Ken Ikuma ,  Hiroshi Toyama

IPC分类号： B41J2/435 ,  B41J2/47

CPC分类号： H04N1/506 ,  G03G15/01 ,  G03G15/043 ,  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：US20050281571A1

公开(公告)日：2005-12-22

申请号：US11150848

申请日：2005-06-09

申请人： Yujiro Nomura ,  Ken Ikuma

发明人： Yujiro Nomura ,  Ken Ikuma

IPC分类号： H04N1/00 ,  H04N1/053 ,  H04N1/113 ,  H04N1/12 ,  G03G15/00

CPC分类号： H04N1/053 ,  H04N1/00525 ,  H04N1/1135 ,  H04N1/12 ,  H04N2201/04713 ,  H04N2201/04732 ,  H04N2201/04744

摘要： As a scanning light beam which is scanning and traveling away from an effective image region moves passed the location of a sensor, a horizontal synchronizing signal Hsync is obtained as a first detection signal. A deflection mirror surface turns around, thereby reversing the direction in which the scanning light beam scans. This scanning light beam therefore scans an effective image region IR, and a latent image forming operation using this scanning light beam is controlled based on the horizontal synchronizing signal Hsync. Hence, there is a relatively long period of time (T4+T5) since the horizontal synchronizing signal Hsync is obtained until formation of a latent image starts in accordance with the signal Hsync. This secures sufficient time for control of the latent image forming operation based on the horizontal synchronizing signal Hsync, and hence, realizes the latent image forming operation as desired during the time T6.

摘要翻译： 当扫描并远离有效图像区域移动的扫描光束通过传感器的位置时，获得水平同步信号Hsync作为第一检测信号。 偏转镜面转过来，从而反转扫描光束扫描的方向。 因此，该扫描光束扫描有效图像区域IR，并且基于水平同步信号Hsync来控制使用该扫描光束的潜像形成操作。 因此，由于根据信号Hsync，直到开始形成潜像，才获得水平同步信号Hsync，所以存在相当长的时间段（T 4 + T 5）。 由此，能够根据水平同步信号Hsync确保足够的时间进行潜像形成操作的控制，从而在时刻T 6期间根据需要实现潜像形成动作。

公开(公告)号：US20050231781A1

公开(公告)日：2005-10-20

申请号：US11107383

申请日：2005-04-14

申请人： Yujiro Nomura ,  Ken Ikuma

发明人： Yujiro Nomura ,  Ken Ikuma

IPC分类号： B41J2/47 ,  G03G15/04 ,  G03G15/043 ,  G03B21/14

CPC分类号： G03G15/043 ,  H04N1/00928 ,  H04N2201/0082

摘要： In the image forming apparatus, startup process is executed upon power-on, prior to printing or at other proper timing to thereby adjust such that a deflector such as an oscillation mirror makes a light beam scan favorably. To be more specific, the following startup process is performed. Amplitude ensuring process is executed before turning on a laser source, and the amplitude value of the deflector is set equal to or larger than a minimum amplitude value. The laser source is then turned on. As a result, at the time of turning on of the laser source, the light beam already scans to move past at least horizontal synchronization sensors. This prevents concentration of the light beam upon a certain portion of a photosensitive member.

摘要翻译： 在图像形成装置中，在打印之后，在打印之前或在其他适当的定时进行启动处理，从而进行调整，使得诸如振动反射镜的偏转器使得光束扫描成为有利的。 更具体地说，执行以下启动过程。 在打开激光源之前执行幅度确定处理，并且将偏转器的振幅值设置为等于或大于最小振幅值。 然后打开激光源。 结果，在打开激光源时，光束已经扫描至少移动到水平同步传感器。 这防止光束聚集在感光构件的某一部分上。

公开(公告)号：US20050179972A1

公开(公告)日：2005-08-18

申请号：US11042811

申请日：2005-01-25

申请人： Yujiro Nomura ,  Ken Ikuma

发明人： Yujiro Nomura ,  Ken Ikuma

IPC分类号： B41J2/44 ,  G02B7/182 ,  G02B26/08 ,  G02B26/10 ,  H04N1/036 ,  H04N1/113

CPC分类号： G02B7/1821 ,  B41J2/471 ,  G02B26/0841 ,  G02B26/085 ,  G02B26/105

摘要： In an optical scanning apparatus in which a movable plate 653 pivots at a high speed, friction between the movable plate 653 and air generates heat. The amount of generated heat is relatively large in a main scanning direction but relatively small in a direction of a pivot axis. A light beam is converged in a sub scanning direction Y within a sub-scanning surface, and is focused as a line image in the vicinity of a deflection mirror surface 651 in a deflector 65. This reduces the size of the deflection mirror surface 651 in the direction Y of the pivot axis (the sub scanning direction). Meanwhile, a second distance is longer than a first distance in the main scanning direction, and the movable plate 653 and vertical side portions (second adjacent portions) 652b are widely apart from each other in the main scanning direction X. This reduces air resistance against the movable plate 653, and hence, the amount of heat generation.

摘要翻译： 在可动板653高速旋转的光学扫描装置中，可移动板653与空气之间的摩擦产生热量。 所产生的热量在主扫描方向上相对较大，但在枢轴方向上相对较小。 光束在副扫描表面内沿副扫描方向Y会聚，并且在偏转器65中的偏转镜表面651附近被聚焦成线图像。 这样可以减小偏转镜表面651在枢转轴线（副扫描方向）的方向Y上的尺寸。 同时，第二距离长于主扫描方向上的第一距离，并且可动板653和垂直侧部分（第二相邻部分）652b在主扫描方向X上彼此分开。这降低了空气阻力 抵靠可动板653，因此发热量。

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。