公开(公告)号：US07944463B2

公开(公告)日：2011-05-17

申请号：US12369613

申请日：2009-02-11

申请人： Hiroshi Toyama ,  Yujiro Nomura ,  Ken Ikuma

发明人： Hiroshi Toyama ,  Yujiro Nomura ,  Ken Ikuma

IPC分类号： B41J15/14 ,  B41J27/00

CPC分类号： G03G15/0409 ,  G03G15/0435 ,  G03G15/50 ,  G03G2215/0404 ,  G06K15/1204 ,  H04N1/0414 ,  H04N1/0443 ,  H04N1/0455 ,  H04N1/1135 ,  H04N1/2369 ,  H04N2201/0466 ,  H04N2201/0468

摘要： An image forming apparatus, includes: a latent image carrier whose surface includes an effective image region spanning across a predetermined width in a main scanning direction and is driven in a sub scanning direction approximately orthogonal to the main scanning direction; a latent image former which has a light source and a deflection mirror oscillating, and deflects a light beam from the light source using the deflection mirror so as to scan the effective image region with the deflected light beam; and a scanning mode controller which switches selectively between a single-side scanning mode and a double-side scanning mode, the single-side scanning mode being a mode in which the light beam is scanned only in a first direction included in the main scanning direction, the double-side scanning mode being a mode in which the light beam is scanned in both the first direction and a second direction opposite to the first direction, wherein a condition to form latent images on the latent image carrier in the single-side scanning mode is different from a condition to form latent images on the latent image carrier in the double-side scanning mode.

摘要翻译： 一种图像形成装置，包括：潜像载体，其表面包括横跨主扫描方向的预定宽度的有效图像区域，并且在与主扫描方向大致正交的副扫描方向上被驱动; 具有光源和偏转镜的振荡器，使用偏转镜使来自光源的光束偏转，以便用偏转的光束扫描有效图像区域; 以及扫描模式控制器，其在单面扫描模式和双面扫描模式之间选择性地切换，所述单面扫描模式是仅沿着包括在主扫描方向上的第一方向扫描光束的模式 ，双面扫描模式是在第一方向和与第一方向相反的第二方向上扫描光束的模式，其中在单侧扫描中在潜像载体上形成潜像的条件 模式不同于在双面扫描模式下在潜像载体上形成潜像的条件。

公开(公告)号：US07848023B2

公开(公告)日：2010-12-07

申请号：US12357231

申请日：2009-01-21

申请人： Ryuta Koizumi ,  Yujiro Nomura ,  Takeshi Sowa

发明人： Ryuta Koizumi ,  Yujiro Nomura ,  Takeshi Sowa

IPC分类号： G02B27/10 ,  B41J15/14

CPC分类号： G02B5/001 ,  B41J2/451

摘要： An exposure head, includes: a lens array that includes lenses that are arranged in a first direction and in a second direction orthogonal to the first direction; and a light emitting element substrate that is provided with light emitting elements that emit lights to be imaged by the lenses, wherein a relationship defined by a following formula: 1

摘要翻译： 曝光头包括：透镜阵列，其包括沿与第一方向正交的第一方向和第二方向布置的透镜; 以及发光元件基板，其具有发射由所述透镜成像的光的发光元件，其中满足以下公式所定义的关系：1

公开(公告)号：US07834897B2

公开(公告)日：2010-11-16

申请号：US11670843

申请日：2007-02-02

申请人： Hiroshi Toyama ,  Yujiro Nomura ,  Ken Ikuma

发明人： Hiroshi Toyama ,  Yujiro Nomura ,  Ken Ikuma

IPC分类号： B41J2/47

CPC分类号： B41J2/471

摘要： An optical scanning apparatus in which an exposing signal is generated from pattern data indicating a position to be exposed by a light beam on a surface-to-be-scanned. A corrected exposing signal is generated by varying the width of pulses of the exposing signal in accordance with a distance between an exposing area corresponding to the pulse and an optical axis of the scanning optical system. The light beam is emitted and modulated by the corrected exposing signal. The pulse width and/or the light quantity of the light beam is/are varied in accordance with the distance between the exposing area and the optical axis of the scanning optical system.

摘要翻译： 一种光学扫描装置，其中从指示要被扫描的光束暴露的位置的图案数据产生曝光信号。 通过根据与脉冲对应的曝光区域与扫描光学系统的光轴之间的距离来改变曝光信号的脉冲宽度来产生校正曝光信号。 光束被校正的曝光信号发射和调制。 光束的脉冲宽度和/或光量根据扫描光学系统的曝光区域和光轴之间的距离而变化。

公开(公告)号：US20100260512A1

公开(公告)日：2010-10-14

申请号：US12759915

申请日：2010-04-14

申请人： Atsushi Imamura ,  Yujiro Nomura ,  Yoshihisa Saka

发明人： Atsushi Imamura ,  Yujiro Nomura ,  Yoshihisa Saka

IPC分类号： G03G15/16

CPC分类号： G03G15/1605 ,  G03G15/0131 ,  G03G2215/0129

摘要： An image forming apparatus includes an image carrier which moves while carrying an image and a transfer roller including a roller base material which faces the image carrier and rotates. A concave portion is positioned on a peripheral surface of the roller base material. A grip unit on the concave portion grips a recording medium. An elastic layer is disposed on a peripheral surface of the roller base material. The transfer roller grips a recording medium by the grip unit when the concave portion faces the image carrier and passes the recording medium through a nip between the image carrier and the elastic layer when facing each other so that the image carried on the image carrier is transferred on the recording medium. A roller driving unit rotates the roller base material. A control unit controls the roller driving unit to adjust a timing for forming the nip.

摘要翻译： 图像形成装置包括：承载图像时移动的图像载体和包括面向图像载体并旋转的辊基材的转印辊。 凹部位于辊基材的周面上。 凹部上的夹持单元夹持记录介质。 弹性层设置在辊基材的圆周表面上。 当凹部面向图像载体时，转印辊通过抓握单元夹持记录介质，并且当彼此面对时使记录介质通过图像载体和弹性层之间的辊隙，使得载体在图像载体上的图像被转印 在记录介质上。 辊驱动单元使辊基材旋转。 控制单元控制辊驱动单元来调节形成辊隙的时间。

公开(公告)号：US07787004B2

公开(公告)日：2010-08-31

申请号：US12356392

申请日：2009-01-20

申请人： Yujiro Nomura ,  Ken Ikuma

发明人： Yujiro Nomura ,  Ken Ikuma

IPC分类号： B41J2/45

CPC分类号： G03G15/326 ,  B41J2/45 ,  G03G15/04045

摘要： A line head includes: a first substrate that includes light-emitting elements formed thereon; and a second substrate that includes focusing lenses, which are inverted optical systems, focusing light emitted from the light-emitting elements, and has a linear expansion coefficient that is smaller than that of the first substrate.

摘要翻译： 行头包括：第一基板，其包括形成在其上的发光元件; 以及第二基板，其包括作为反转的光学系统的聚焦透镜，聚焦从发光元件发射的光，并且具有比第一基板的线膨胀系数小的线性膨胀系数。

公开(公告)号：US07626606B2

公开(公告)日：2009-12-01

申请号：US12177097

申请日：2008-07-21

申请人： Hiroshi Toyama ,  Yujiro Nomura ,  Ken Ikuma

发明人： Hiroshi Toyama ,  Yujiro Nomura ,  Ken Ikuma

IPC分类号： B41J2/435 ,  B41J15/14 ,  B41J27/00

CPC分类号： G03G15/0409 ,  G03G15/0435 ,  G03G15/50 ,  G03G2215/0404 ,  G06K15/1204 ,  H04N1/0414 ,  H04N1/0443 ,  H04N1/0455 ,  H04N1/1135 ,  H04N1/2369 ,  H04N2201/0466 ,  H04N2201/0468

摘要： An image forming apparatus, includes: a latent image carrier whose surface includes an effective image region spanning across a predetermined width in a main scanning direction and is driven in a sub scanning direction approximately orthogonal to the main scanning direction; a latent image former which has a light source and a deflection mirror oscillating, and deflects a light beam from the light source using the deflection mirror so as to scan the effective image region with the deflected light beam; and a scanning mode controller which switches selectively between a single-side scanning mode and a double-side scanning mode, the single-side scanning mode being a mode in which the light beam is scanned only in a first direction included in the main scanning direction, the double-side scanning mode being a mode in which the light beam is scanned in both the first direction and a second direction opposite to the first direction, wherein a condition to form latent images on the latent image carrier in the single-side scanning mode is different from a condition to form latent images on the latent image carrier in the double-side scanning mode.

摘要翻译： 一种图像形成装置，包括：潜像载体，其表面包括横跨主扫描方向的预定宽度的有效图像区域，并且在与主扫描方向大致正交的副扫描方向上被驱动; 具有光源和偏转镜的振荡器，使用偏转镜使来自光源的光束偏转，以便用偏转的光束扫描有效图像区域; 以及扫描模式控制器，其在单面扫描模式和双面扫描模式之间选择性地切换，所述单面扫描模式是仅沿着包括在主扫描方向上的第一方向扫描光束的模式 ，双面扫描模式是在第一方向和与第一方向相反的第二方向上扫描光束的模式，其中在单侧扫描中在潜像载体上形成潜像的条件 模式不同于在双面扫描模式下在潜像载体上形成潜像的条件。

公开(公告)号：US07570279B2

公开(公告)日：2009-08-04

申请号：US12207340

申请日：2008-09-09

申请人： Yujiro Nomura ,  Ken Ikuma

发明人： Yujiro Nomura ,  Ken Ikuma

IPC分类号： B41J2/44 ,  G02B26/10

CPC分类号： B41J2/471 ,  G02B26/0841 ,  G02B26/101

摘要： A mirror driver drives deflection mirror surfaces into a pivoting action at a frequency belonging to a first drive frequency band in which the high-frequency side of a first resonance frequency band partially overlaps the low-frequency side of a second resonance frequency band, so that the deflection mirror surfaces deflect a light beam. Hence, the deflection angles of light beams change, while canceling out each other the changes of the deflection angles of the light beams deflected by the deflection mirror surfaces owing to changes of resonance characteristics. Because of this, even when the resonance characteristics change, it is possible to stabilize the deflection angle of the light beam deflected by the first deflection mirror surface and further deflected by the second deflection mirror surface.

摘要翻译： 反射镜驱动器将偏转镜面驱动成属于第一驱动频带的频率的转动动作，其中第一共振频带的高频侧部分地与第二共振频带的低频侧重叠，使得 偏转镜面偏转光束。 因此，由于共振特性的变化，光束的偏转角变化，同时抵消由偏转镜面偏转的光束的偏转角的变化。 因此，即使在谐振特性变化的情况下，也可以使由第一偏转镜面偏转的光束的偏转角稳定，并进一步被第二偏转镜面偏转。

公开(公告)号：US07557822B2

公开(公告)日：2009-07-07

申请号：US11107981

申请日：2005-04-14

申请人： Yujiro Nomura ,  Ken Ikuma

发明人： Yujiro Nomura ,  Ken Ikuma

IPC分类号： B41J15/14 ,  B41J27/00

CPC分类号： H04N1/00928 ,  G02B26/105 ,  G06K15/1219 ,  H04N1/0473 ,  H04N1/1135 ,  H04N1/12 ,  H04N2201/0471 ,  H04N2201/04734 ,  H04N2201/04744 ,  H04N2201/04755

摘要： A scan-beam detection signal Hsync provided by horizontal synchronous sensors 60A, 60B is inputted to a drive signal controlling section 10Y as a drive period signal related to a drive period of a deflective mirror. The drive signal controlling section 10Y controls a drive signal Sd such as to establish a predetermined relationship between a phase of a reference signal Sr and a phase of the horizontal synchronous signal Hsync, whereby a deflector 65 is allowed to operate in synchronism with the reference signal Sr. Therefore, a latent-image forming position with respect to a sub-scan direction Y is adjusted by way of the phase adjustment between the reference signal Sr and the horizontal synchronous signal Hsync, so that a linear latent image is prevented from deviating with respect to the sub-scan direction Y.

摘要翻译： 由水平同步传感器60A，60B提供的扫描光束检测信号Hsync作为与偏转镜的驱动周期相关的驱动周期信号被输入到驱动信号控制部10Y。 驱动信号控制部10Y控制驱动信号Sd，以便建立参考信号Sr的相位和水平同步信号Hsync的相位之间的预定关系，从而允许偏转器65与参考信号同步地操作 因此，通过参考信号Sr和水平同步信号Hsync之间的相位调整来调整相对于副扫描方向Y的潜像形成位置，从而防止线性潜像与 相对于副扫描方向Y.

公开(公告)号：US07417651B2

公开(公告)日：2008-08-26

申请号：US11320176

申请日：2005-12-28

申请人： Kunihiro Kawada ,  Yujiro Nomura ,  Ken Ikuma

发明人： Kunihiro Kawada ,  Yujiro Nomura ,  Ken Ikuma

IPC分类号： B41J2/385 ,  G03G15/01

CPC分类号： G03G15/1685 ,  G03G15/0194 ,  G03G2215/0132 ,  G03G2215/0161

摘要： A registration mark is a toner image which has a first linear pattern and a second linear pattern, which extend along a main scanning direction, and a two-dimensional pattern. The first linear pattern, the two-dimensional pattern and the second linear pattern are arranged apart from each other in this order along a transporting direction. In short, the linear patterns and extending along the main scanning direction are formed spaced apart from the two-dimensional pattern, one toward the upstream side and the other toward the downstream side, along the transporting direction. This suppresses the edge effect along the transporting direction and realizes accurate detection of the position of each registration mark by a test pattern sensor.

摘要翻译： 对准标记是具有沿着主扫描方向延伸的第一线性图案和第二线性图案的调色剂图像和二维图案。 第一线性图案，二维图案和第二线状图案沿着传送方向依次布置成彼此分开。 简而言之，沿着主扫描方向延伸的线状图案沿着输送方向形成为与二维图案间隔开，一个向上游侧，另一个朝向下游侧。 这抑制沿输送方向的边缘效应，并通过测试图案传感器实现对每个对准标记的位置的精确检测。

公开(公告)号：US07391003B2

公开(公告)日：2008-06-24

申请号：US11401213

申请日：2006-04-10

申请人： Yujiro Nomura ,  Akihiro Gomi ,  Ken Ikuma

发明人： Yujiro Nomura ,  Akihiro Gomi ,  Ken Ikuma

IPC分类号： H01L27/00

CPC分类号： G03G15/326 ,  G02B26/105 ,  G03G15/0435 ,  G03G2215/0132 ,  G03G2215/0148 ,  G03G2215/0404 ,  H04N1/053 ,  H04N1/1135 ,  H04N1/12 ,  H04N2201/02443 ,  H04N2201/0471 ,  H04N2201/04734 ,  H04N2201/04744 ,  H04N2201/04786 ,  H04N2201/04798

摘要： An image forming apparatus includes a latent image forming unit in which a light beam scans in a second scan region wider than a first scan region. The light beam is modulated in accordance with an image signal within the range of the first scan region for every scanning cycle and guided onto the effective image region to form a line latent image. A write timing adjuster adjusts a write start position for writing a latent image along the main scanning direction, based on a time difference between a first detection signal output when a first light beam scanning away from the effective image region moves passed an optical sensor, and a second detection signal output when a second light beam scanning toward the effective image region moves passed the optical sensor.

摘要翻译： 图像形成装置包括潜像形成单元，其中光束在比第一扫描区域宽的第二扫描区域中扫描。 根据在每个扫描周期的第一扫描区域的范围内的图像信号对光束进行调制，并被引导到有效图像区域上以形成线潜像。 写入定时调整器基于当远离有效图像区域扫描的第一光束扫描通过光学传感器时输出的第一检测信号和第二检测信号之间的时间差与沿着主扫描方向写入潜像的时间差调整写入开始位置，以及 当朝向有效图像区域扫描的第二光束移动通过光学传感器时输出的第二检测信号。