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。

公开(公告)号：US20070070483A1

公开(公告)日：2007-03-29

申请号：US11464010

申请日：2006-08-11

申请人： Yasumasa Ishihara ,  Yujiro Nomura ,  Akihiro Gomi ,  Ken Ikuma

发明人： Yasumasa Ishihara ,  Yujiro Nomura ,  Akihiro Gomi ,  Ken Ikuma

IPC分类号： G02B26/08

CPC分类号： G02B26/105 ,  B41J2/471

摘要： An image forming method which generates a video signal corresponding to an image forming command based on a video clock signal, modulates a light beam according to the video signal, and scans the modulated light beam along a main scanning direction by means of an oscillation mirror which resonates based on a drive signal, so as to form a latent image in an effective image region of a latent image carrier, the method includes: synchronizing the drive signal with the video clock signal to synchronize a detection signal with the vide clock signal, the detection signal being output from a detector which detect the light beam scanned in the main scanning direction in a region away from an effective scan region which corresponds to the effective image region; controlling a resonant frequency of the oscillation mirror based on the detection signal so that the resonant frequency of the oscillation mirror almost coincides with the frequency of the drive signal; and adjusting a position, at which the latent image is written over the latent image carrier, is adjusted by adjusting output timing of the video signal based on the detection signal from the detector.

摘要翻译： 一种图像形成方法，其基于视频时钟信号产生与图像形成命令相对应的视频信号，根据视频信号调制光束，并通过振荡镜沿主扫描方向扫描调制光束， 基于驱动信号进行共振，以便在潜像载体的有效图像区域中形成潜像，该方法包括：使驱动信号与视频时钟信号同步，以使检测信号与视频时钟信号同步， 检测信号从检测在远离有效图像区域的有效扫描区域的区域中在主扫描方向上扫描的光束的检测器输出; 基于检测信号控制振荡镜的谐振频率，使得振荡反射镜的谐振频率几乎与驱动信号的频率一致; 并且通过基于来自检测器的检测信号调整视频信号的输出定时来调整在潜像载体上写入潜像的位置。

公开(公告)号：US20070035799A1

公开(公告)日：2007-02-15

申请号：US11462171

申请日：2006-08-03

申请人： Akihiro Gomi ,  Yujiro Nomura ,  Ken Ikuma

发明人： Akihiro Gomi ,  Yujiro Nomura ,  Ken Ikuma

IPC分类号： G02B26/08

CPC分类号： G02B26/105 ,  G02B27/0031 ,  Y10S359/90

摘要： A light scanning apparatus makes a light beam scan along a main scanning direction on an effective scanning region which has a predetermined width. The apparatus comprises: a light source which emits the light beam; a deflector which includes an oscillation mirror which oscillates about an oscillatory axis which is orthogonal or approximately orthogonal to the main scanning direction, deflects the light beam emitted from the light source using the oscillation mirror, and makes the light beam scan a second scanning range which contains but extends beyond a first scanning range which corresponds to the effective scanning region; a detector which detects the scanning light beam which moves through a position which is outside the first scanning range but is within the second scanning range, and outputs a signal; and a controller which controls a mirror drive signal fed to the oscillation mirror based on the output signal from the detector and accordingly adjusts the amplitude of the oscillation mirror. In the apparatus above, the controller stops driving the oscillation mirror when confirming based on the output signal that the oscillation mirror is under abnormal control.

摘要翻译： 光扫描装置在具有预定宽度的有效扫描区域沿着主扫描方向进行光束扫描。 该装置包括：发射光束的光源; 包括围绕与主扫描方向正交或大致正交的振荡轴振荡的振荡镜的偏转器，使用振荡镜偏转从光源发射的光束，并使光束扫描第二扫描范围，该扫描范围 包含但延伸超过对应于有效扫描区域的第一扫描范围; 检测器，其检测移动通过处于第一扫描范围之外但处于第二扫描范围内的位置的扫描光束，并输出信号; 以及控制器，其基于来自检测器的输出信号来控制馈送到振荡镜的反射镜驱动信号，并且因此调整振荡镜的振幅。 在上述装置中，当基于振荡镜处于异常控制的输出信号进行确认时，控制器停止驱动振荡镜。

公开(公告)号：US20060243886A1

公开(公告)日：2006-11-02

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 ,  H01J3/14

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 carrier that includes an effective image region which has a predetermined width along a main scanning direction; a latent image forming unit that has a structure in which a deflection mirror surface makes a light beam scan in a second scan region which is wider than a first scan region which corresponds to the effective image region, that modulates the light beam in accordance with an image signal within the range of the first scan region for every scanning cycle, and that guides the modulated light beam onto the effective image region, thereby forming a line latent image which corresponds to the image signal; an optical sensor that detects a scanning light beam, which moves outside the first scan region within the second scan region, to output a signal; and a write timing adjuster that controls the timing of start modulating the light beam and accordingly adjusts a write start position for start writing a latent image along the main scanning direction, based on a time difference between a first detection signal, which the optical sensor outputs as a first light beam scanning away from the effective image region moves passed the optical sensor, and a second detection signal, which the optical sensor outputs after outputting the first detection signal when a second light beam scanning toward the effective image region moves passed the optical sensor.

摘要翻译： 一种图像形成装置包括：潜像载体，其包括沿着主扫描方向具有预定宽度的有效图像区域; 一种潜像形成单元，其具有偏光镜表面在比对应于有效图像区域的第一扫描区域宽的第二扫描区域中进行光束扫描的结构，该第二扫描区域根据 在每个扫描周期的第一扫描区域的范围内的图像信号，并且将调制光束引导到有效图像区域上，从而形成对应于图像信号的线潜像; 检测移动到第二扫描区域内的第一扫描区域外的扫描光束以输出信号的光学传感器; 以及写入定时调整器，其控制开始调制光束的定时，并且相应地基于光学传感器输出的第一检测信号之间的时间差调整用于开始沿着主扫描方向写入潜像的写入开始位置 当远离有效图像区域扫描的第一光束移动通过光学传感器时，并且当朝向有效图像区域扫描的第二光束移动时光学传感器在输出第一检测信号之后输出的第二检测信号通过光学 传感器。

公开(公告)号：US07710625B2

公开(公告)日：2010-05-04

申请号：US11846432

申请日：2007-08-28

申请人： Akihiro Gomi ,  Yujiro Nomura ,  Ken Ikuma

发明人： Akihiro Gomi ,  Yujiro Nomura ,  Ken Ikuma

IPC分类号： G02B26/08

CPC分类号： G02B26/105 ,  G02B27/0031 ,  Y10S359/90

摘要： A light scanning apparatus makes a light beam scan along a main scanning direction on an effective scanning region which has a predetermined width. The apparatus comprises: a light source which emits the light beam; a deflector which includes an oscillation mirror which oscillates about an oscillatory axis which is orthogonal or approximately orthogonal to the main scanning direction, deflects the light beam emitted from the light source using the oscillation mirror, and makes the light beam scan a second scanning range which contains but extends beyond a first scanning range which corresponds to the effective scanning region; a detector which detects the scanning light beam which moves through a position which is outside the first scanning range but is within the second scanning range, and outputs a signal; and a controller which controls a mirror drive signal fed to the oscillation mirror based on the output signal from the detector and accordingly adjusts the amplitude of the oscillation mirror. In the apparatus above, the controller stops driving the oscillation mirror when confirming based on the output signal that the oscillation mirror is under abnormal control.

摘要翻译： 光扫描装置在具有预定宽度的有效扫描区域沿着主扫描方向进行光束扫描。 该装置包括：发射光束的光源; 包括围绕与主扫描方向正交或大致正交的振荡轴振荡的振荡镜的偏转器，使用振荡镜偏转从光源发出的光束，并使光束扫描第二扫描范围，该扫描范围 包含但延伸超过对应于有效扫描区域的第一扫描范围; 检测器，其检测移动通过处于第一扫描范围之外但处于第二扫描范围内的位置的扫描光束，并输出信号; 以及控制器，其基于来自检测器的输出信号来控制馈送到振荡镜的反射镜驱动信号，并且因此调整振荡镜的振幅。 在上述装置中，当基于振荡镜处于异常控制的输出信号进行确认时，控制器停止驱动振荡镜。

公开(公告)号：US07436564B2

公开(公告)日：2008-10-14

申请号：US11462171

申请日：2006-08-03

申请人： Akihiro Gomi ,  Yujiro Nomura ,  Ken Ikuma

发明人： Akihiro Gomi ,  Yujiro Nomura ,  Ken Ikuma

IPC分类号： G02B26/08 ,  H01J3/14

CPC分类号： G02B26/105 ,  G02B27/0031 ,  Y10S359/90

摘要： A light scanning apparatus makes a light beam scan along a main scanning direction on an effective scanning region having a predetermined width. A deflector includes an oscillation mirror which deflects the light beam and makes the light beam scan a second scanning range which contains but extends beyond a first scanning range corresponding to the effective scanning region A detector detects the scanning light beam which moves through a position outside the first scanning range but within the second scanning range, and outputs a detection signal A controller drives the oscillation mirror based on the detection signal and accordingly adjusts the amplitude of the oscillation mirror, and stops driving the oscillation mirror when the detection signal is not outputted from the detector even though a light source is turned on to emit the light beam.

摘要翻译： 光扫描装置在具有预定宽度的有效扫描区域沿着主扫描方向进行光束扫描。 偏转器包括使光束偏转并使光束扫描第二扫描范围的振荡镜，该第二扫描范围包含但延伸超过对应于有效扫描区域的第一扫描范围。检测器检测扫描光束，其移动通过 第一扫描范围，但是在第二扫描范围内，并且输出检测信号A控制器基于检测信号驱动振荡镜，并且相应地调节振荡镜的振幅，并且当检测信号没有被输出时停止驱动振荡镜 检测器即使光源被接通以发射光束。

公开(公告)号：US07480087B2

公开(公告)日：2009-01-20

申请号：US11464010

申请日：2006-08-11

申请人： Yasumasa Ishihara ,  Yujiro Nomura ,  Akihiro Gomi ,  Ken Ikuma

发明人： Yasumasa Ishihara ,  Yujiro Nomura ,  Akihiro Gomi ,  Ken Ikuma

IPC分类号： G02B26/08 ,  B41J2/435

CPC分类号： G02B26/105 ,  B41J2/471

摘要： An image forming method which generates a video signal corresponding to an image forming command based on a video clock signal, modulates a light beam according to the video signal, and scans the modulated light beam along a main scanning direction by means of an oscillation mirror which resonates based on a drive signal, so as to form a latent image in an effective image region of a latent image carrier, the method includes: synchronizing the drive signal with the video clock signal to synchronize a detection signal with the vide clock signal, the detection signal being output from a detector which detect the light beam scanned in the main scanning direction in a region away from an effective scan region which corresponds to the effective image region; controlling a resonant frequency of the oscillation mirror based on the detection signal so that the resonant frequency of the oscillation mirror almost coincides with the frequency of the drive signal; and adjusting a position, at which the latent image is written over the latent image carrier, is adjusted by adjusting output timing of the video signal based on the detection signal from the detector.

摘要翻译： 一种图像形成方法，其基于视频时钟信号产生与图像形成命令相对应的视频信号，根据视频信号调制光束，并通过振荡镜沿主扫描方向扫描调制光束， 基于驱动信号进行共振，以便在潜像载体的有效图像区域中形成潜像，该方法包括：使驱动信号与视频时钟信号同步，以使检测信号与视频时钟信号同步， 检测信号从检测在远离有效图像区域的有效扫描区域的区域中在主扫描方向上扫描的光束的检测器输出; 基于检测信号控制振荡镜的谐振频率，使得振荡反射镜的谐振频率几乎与驱动信号的频率一致; 并且通过基于来自检测器的检测信号调整视频信号的输出定时来调整在潜像载体上写入潜像的位置。

公开(公告)号：US07719739B2

公开(公告)日：2010-05-18

申请号：US12167097

申请日：2008-07-02

申请人： Akihiro Gomi ,  Yujiro Nomura ,  Ken Ikuma

发明人： Akihiro Gomi ,  Yujiro Nomura ,  Ken Ikuma

IPC分类号： G02B26/08

CPC分类号： G02B26/105 ,  G02B27/0031 ,  Y10S359/90

摘要： A light scanning apparatus makes a light beam scan along a main scanning direction on an effective scanning region which has a predetermined width. The apparatus comprises: a light source which emits the light beam; a deflector which includes an oscillation mirror which oscillates about an oscillatory axis which is orthogonal or approximately orthogonal to the main scanning direction, deflects the light beam emitted from the light source using the oscillation mirror, and makes the light beam scan a second scanning range which contains but extends beyond a first scanning range which corresponds to the effective scanning region; a detector which detects the scanning light beam which moves through a position which is outside the first scanning range but is within the second scanning range, and outputs a signal; and a controller which controls a mirror drive signal fed to the oscillation mirror based on the output signal from the detector and accordingly adjusts the amplitude of the oscillation mirror. In the apparatus above, the controller stops driving the oscillation mirror when confirming based on the output signal that the oscillation mirror is under abnormal control.

摘要翻译： 光扫描装置在具有预定宽度的有效扫描区域沿着主扫描方向进行光束扫描。 该装置包括：发射光束的光源; 包括围绕与主扫描方向正交或大致正交的振荡轴振荡的振荡镜的偏转器，使用振荡镜偏转从光源发射的光束，并使光束扫描第二扫描范围，该扫描范围 包含但延伸超过对应于有效扫描区域的第一扫描范围; 检测器，其检测移动通过处于第一扫描范围之外但处于第二扫描范围内的位置的扫描光束，并输出信号; 以及控制器，其基于来自检测器的输出信号来控制馈送到振荡镜的反射镜驱动信号，并且因此调整振荡镜的振幅。 在上述装置中，当基于振荡镜处于异常控制的输出信号进行确认时，控制器停止驱动振荡镜。

公开(公告)号：US07557976B2

公开(公告)日：2009-07-07

申请号：US11846444

申请日：2007-08-28

申请人： Akihiro Gomi ,  Yujiro Nomura ,  Ken Ikuma

发明人： Akihiro Gomi ,  Yujiro Nomura ,  Ken Ikuma

IPC分类号： G02B26/08

CPC分类号： G02B26/105 ,  G02B27/0031 ,  Y10S359/90

摘要： A light scanning apparatus includes a deflector having an oscillation mirror that oscillates about an axis that is orthogonal to a main scanning direction. A detector detects a scanning light beam deflected by the oscillation mirror and moving in a scanning region. A controller adjusts the amplitude of the oscillation mirror based on a detection signal outputted from the detector, and stops driving the oscillation mirror when the detection signal is not outputted from the detector.

摘要翻译： 光扫描装置包括具有围绕与主扫描方向正交的轴振荡的振荡镜的偏转器。 检测器检测由振荡镜偏转并在扫描区域中移动的扫描光束。 控制器基于从检测器输出的检测信号来调整振荡镜的振幅，并且当检测信号未从检测器输出时停止驱动振荡镜。

公开(公告)号：US5023733A

公开(公告)日：1991-06-11

申请号：US481755

申请日：1990-02-15

申请人： Yoshiro Koga ,  Akihiro Gomi ,  Takashi Miyasaka ,  Yasunaga Miyazawa ,  Kenichi Endo ,  Junichiro Shinozaki ,  Kaneo Yoda ,  Takashi Ichikawa ,  Hitoshi Miyasaka ,  Chiharu Kaburagi

发明人： Yoshiro Koga ,  Akihiro Gomi ,  Takashi Miyasaka ,  Yasunaga Miyazawa ,  Kenichi Endo ,  Junichiro Shinozaki ,  Kaneo Yoda ,  Takashi Ichikawa ,  Hitoshi Miyasaka ,  Chiharu Kaburagi

IPC分类号： G11B5/55

CPC分类号： G11B5/5534 ,  G11B5/5552

摘要： A disk drive includes media for recording data, disk heads for recording data and reproducing data on the disks. The heads are supported on arms. A head actuator drives the arms moving the head to a predetermined data recording track on the disk. A spindle motor rotates the disk at a predetermined rotating speed. The spindle motor includes a rotor magnet disposed within a stator coil. The disk head and actuator motor are mounted on a pivot on opposed sides of each other. To control head positioning, first positioning data for positioning the disk heads and second positioning data are provided on each data surface. This data is detected by a data head. Second positioning data may be positioned on tracks not used for containing data. The head position is compensated by the stored second positioning information superimposed on the first positioning data.

摘要翻译： 磁盘驱动器包括用于记录数据的介质，用于记录数据的磁头和在磁盘上再现数据。 头部支撑在手臂上。 头致动器驱动臂将磁头移动到盘上的预定数据记录轨道。 主轴电机以预定的转速旋转盘。 主轴电动机包括设置在定子线圈内的转子磁体。 盘头和致动器马达安装在彼此相对侧的枢轴上。 为了控制头部定位，在每个数据表面上提供用于定位磁头的第一定位数据和第二定位数据。 该数据由数据头检测。 第二定位数据可以位于不用于包含数据的轨道上。 通过叠加在第一定位数据上的存储的第二定位信息补偿头位置。