公开(公告)号：US20050088512A1

公开(公告)日：2005-04-28

申请号：US10941309

申请日：2004-09-15

申请人： Yujiro Nomura ,  Ken Ikuma

发明人： Yujiro Nomura ,  Ken Ikuma

IPC分类号： B41J2/47 ,  G02B26/08 ,  G02B26/10 ,  B41J27/00

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：US20050068402A1

公开(公告)日：2005-03-31

申请号：US10914054

申请日：2004-08-06

申请人： Kiyoshi Tsujino ,  Yujiro Nomura ,  Ken Ikuma

发明人： Kiyoshi Tsujino ,  Yujiro Nomura ,  Ken Ikuma

IPC分类号： G03G15/00 ,  G03G15/01 ,  B41J2/41

CPC分类号： G03G15/55 ,  G03G15/011 ,  G03G15/556 ,  G03G2215/0154 ,  G03G2215/04

摘要： In an image forming apparatus, an image carrier is configured to rotate in a first direction. An image writer is adapted to irradiate the image carrier to form an electrostatic latent image thereon. A storage stores information regarding a factor disturbing the formation of the latent image in advance. A controller controls the irradiation of the image writer so as to eliminate the disturbing factor, based on the information stored in the storage.

摘要翻译： 在图像形成装置中，图像载体被配置为沿第一方向旋转。 图像写入器适于照射图像载体以在其上形成静电潜像。 存储器预先存储关于干扰潜像的形成的因素的信息。 控制器基于存储在存储器中的信息来控制图像写入器的照射，以消除干扰因素。

公开(公告)号：US08009361B2

公开(公告)日：2011-08-30

申请号：US12544108

申请日：2009-08-19

申请人： Yujiro Nomura ,  Ken Ikuma

发明人： Yujiro Nomura ,  Ken Ikuma

IPC分类号： G02B27/10 ,  B41J2/45 ,  G03G15/14

CPC分类号： G02B3/0056 ,  B41J2/451 ,  G02B3/0068 ,  G03G15/04072 ,  G03G2215/0409

摘要： A lens array includes: a lens array substrate having a light transmissive property; a first lens disposed on the lens array substrate; and a second lens disposed on the lens array substrate in a first direction from the first lens and different from the first lens in peripheral shape.

摘要翻译： 透镜阵列包括：具有透光性的透镜阵列基板; 设置在所述透镜阵列基板上的第一透镜; 以及第二透镜，其从第一透镜在第一方向上设置在透镜阵列基板上，并且与周边形状的第一透镜不同。

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：US07639274B2

公开(公告)日：2009-12-29

申请号：US11104289

申请日：2005-04-12

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： G02B26/105

摘要： In an image forming apparatus including plural exposure units each deflecting a light beam from a light source by means of an oscillation mirror in resonant oscillations and scanning the deflected light beam on a latent image carrier thereby forming a latent image on the latent image carrier, every one of the exposure units assuredly attains an adequate amplitude of the oscillation mirror for ensuring the formation of images of high quality. More specifically, a CPU 101 retrieves resonant frequencies of individual deflectors previously stored in a memory. The CPU 101 calculates an average value of these resonant frequencies and applies a drive command to mirror drivers 1022 of the exposure units 6Y, 6M, 6C, 6K such as to drive all the deflectors into oscillations at the average value. Alternatively, a resonant-frequency adjusting section 653 makes adjustment to match the resonant frequencies of the individual deflectors substantially with a drive frequency. This ensures that all the oscillation mirrors attain adequate amplitudes.

摘要翻译： 在包括多个曝光单元的图像形成装置中，每个曝光单元各自通过谐振振荡中的振荡镜偏转来自光源的光束，并且将偏转的光束扫描在潜像载体上，从而在潜像载体上形成潜像， 其中一个曝光单元确实获得了足够的振荡镜幅度，以确保形成高质量的图像。 更具体地，CPU 101检索预先存储在存储器中的各个偏转器的谐振频率。 CPU 101计算这些谐振频率的平均值，并将驱动命令施加到曝光单元6Y，6M，6C，6K的镜像驱动器1022，以将平均值驱动所有偏转器进入振荡。 或者，谐振频率调整部653进行调整，使各个偏转器的谐振频率与驱动频率基本一致。 这确保了所有的振荡镜都能获得足够的振幅。

公开(公告)号：US07626605B2

公开(公告)日：2009-12-01

申请号：US11828241

申请日：2007-07-25

申请人： Yujiro Nomura ,  Ken Ikuma

发明人： Yujiro Nomura ,  Ken Ikuma

IPC分类号： B41J2/435 ,  B41J2/47

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.

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：US07327977B2

公开(公告)日：2008-02-05

申请号：US11285507

申请日：2005-11-22

申请人： Koji Kitazawa ,  Yujiro Nomura ,  Ken Ikuma ,  Kunihiro Kawada

发明人： Koji Kitazawa ,  Yujiro Nomura ,  Ken Ikuma ,  Kunihiro Kawada

IPC分类号： G03G15/01

CPC分类号： G03G15/0131 ,  G03G15/0194 ,  G03G2215/0132 ,  G03G2215/0161 ,  G03G2215/1623

摘要： Prior to the formation of registration pattern images (Step S7), base information is acquired by means of a test pattern sensor detecting a surface of an intermediate transfer belt or particularly a surface of a pattern formation region thereof. A surface condition of the pattern formation region is acquired based on the base information thus acquired, while the formation of the registration pattern images is controlled based on the surface condition. In this manner, the registration pattern images are formed with an adequate consideration given to the surface condition of the pattern formation region where the registration pattern images are to be formed (Step S7). Hence, the positions of the registration pattern images may be detected with high accuracies. As a result, a proper correction of color registration offset may be accomplished, assuredly preventing the occurrence of the color registration offset or degraded color tone.

摘要翻译： 在形成注册图案图像之前（步骤S7），通过检测中间转印带的表面或特别是其图案形成区域的表面的测试图案传感器来获取基本信息。 基于所获得的基本信息，获取图案形成区域的表面状态，同时基于表面条件来控制对准图案图像的形成。 以这种方式，在对要形成配准图案图像的图案形成区域的表面状态进行充分考虑的情况下形成对准图案图像（步骤S7）。 因此，可以高精度地检测配准图案图像的位置。 结果，可以实现颜色对准偏移的适当校正，可靠地防止颜色对准偏移或劣化色调的发生。

公开(公告)号：US07177060B2

公开(公告)日：2007-02-13

申请号：US11014519

申请日：2004-12-15

申请人： Yujiro Nomura ,  Ken Ikuma

发明人： Yujiro Nomura ,  Ken Ikuma

IPC分类号： G02B26/08

CPC分类号： G02B26/0816 ,  G02B26/105 ,  G06K15/1219

摘要： The size Hbs of a beam spot of an incident light beam on a deflection mirror surface 651 is larger than the width Hb of the deflection mirror surface 651 when a pivot angle θ is zero, and therefore, Hbs>Hb is satisfied at any pivot angle θ and the deflection mirror surface 651 is overfilled with the incident light beam. Hence, even when beam rotation occurs, only a central portion of the incident light beam is reflected by the deflection mirror surface 651 and guided as a scanning light beam to a scanning lens. Owing to this, the central axis CLs of the outgoing light beam (scanning light beam) Ls from a deflector becomes close to the central axis CLs as it is when the pivot angle θ is zero.

摘要翻译： 当偏转镜面651上的入射光束的光束点的大小Hbs比摆动角度θ为零时偏转镜面651的宽度Hb大，因此在任意的转角处满足Hbs> Hb θ和偏转镜表面651用入射光束过满。 因此，即使当光束旋转发生时，仅入射光束的中心部分被偏转镜面651反射，并作为扫描光束被引导到扫描透镜。 由此，来自偏转器的出射光束（扫描光束）Ls的中心轴线CL随着枢转角度θ为零而变得接近中心轴线CLs。

公开(公告)号：US20060268023A1

公开(公告)日：2006-11-30

申请号：US11442736

申请日：2006-05-26

申请人： Hiroshi Toyama ,  Yujiro Nomura ,  Ken Ikuma

发明人： Hiroshi Toyama ,  Yujiro Nomura ,  Ken Ikuma

IPC分类号： B41J3/00

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.