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1. 发明授权

US5926203A Image recording method and apparatus using multiple laser beams 失效
标题翻译：使用多个激光束的图像记录方法和装置
公开(公告)号：US5926203A
公开(公告)日：1999-07-20
申请号：US751732
申请日：1996-11-18
申请人： Akira Shimura , Shuichi Yamazaki , Tomohiro Nakajima , Masaki Narita
发明人： Akira Shimura , Shuichi Yamazaki , Tomohiro Nakajima , Masaki Narita
IPC分类号： B41J2/44 , B41J2/47 , G03G21/00 , G03G21/14 , G06K15/12 , H04N1/113 , B41J2/45 , B41J2/435
CPC分类号： G06K15/1261 , B41J2/473
摘要： A method and apparatus that prevent degradation of an image quality due to a change of a beam pitch in a subscanning direction of each optical beam on a record medium. At a given time, for example, when power is first turned on, a CPU detects a beam pitch on a record medium, e.g., a photosensitive drum, by using a CCD line image sensor. If the detected value differs from a value set according to a currently-selected scanning density, an LD arrangement change motor is rotated via a motor driver so that the beam pitch matches the set value so as to change an arrangement of laser diodes in a laser diode array. Control over the beam pitch occurs for a variety of conditions including control at regular intervals, power-on events, or when a scanning density specification signal indicates a different beam pitch than the detected beam pitch. Similarly, adjustment over the beam pitch is not typically made during a copying operation.
摘要翻译：一种防止由于每个光束在记录介质上的副扫描方向上的光束间距变化引起的图像质量劣化的方法和装置。在给定的时间，例如，当电源首次打开时，CPU通过使用CCD线图像传感器来检测诸如感光鼓的记录介质上的光束间距。如果检测值与根据当前选择的扫描浓度设定的值不同，则通过马达驱动器旋转LD布置改变马达，使得波束间距与设定值匹配，以便改变激光器中的激光二极管的布置二极管阵列。波束间距的控制发生在各种条件下，包括规则间隔的控制，上电事件，或当扫描浓度指示信号表示与检测的光束间距不同的光束间距时。类似地，在复印操作期间通常不会对光束间距进行调整。

2. 发明授权

US5786594A Multi-beam pitch adjustment system and method 失效
标题翻译：多光束调谐系统及方法
公开(公告)号：US5786594A
公开(公告)日：1998-07-28
申请号：US786203
申请日：1997-01-21
申请人： Tatsuya Ito , Tomohiro Nakajima , Katsumi Yamaguchi , Akira Shimura , Masaki Narita , Shuichi Yamazaki , Satoru Ito
发明人： Tatsuya Ito , Tomohiro Nakajima , Katsumi Yamaguchi , Akira Shimura , Masaki Narita , Shuichi Yamazaki , Satoru Ito
IPC分类号： B41J2/47 , G02B26/12 , H04N1/113 , H04N1/12 , H04N1/191 , H04N1/36
CPC分类号： H04N1/1916 , B41J2/473 , G02B26/123 , H04N1/1911 , H04N1/1135 , H04N1/12
摘要： The current disclosure discloses methods of and systems for automatically adjusting or selecting a pitch between beams in a multi-beam scanning system. An array of light sources is mounted on a rotatable housing and emits light in a direction perpendicular to the rotational plane. The system or method measures a pitch on or near an intermediate image-forming surface. In response to the measured pitch, the scanning as well as sub-scanning pitch is automatically adjusted or selected by rotating a housing unit to maintain a desired pitch.
摘要翻译：本公开公开了一种用于在多光束扫描系统中自动调节或选择光束间距的方法和系统。光源阵列安装在可旋转外壳上，并沿与旋转平面垂直的方向发光。该系统或方法测量中间图像形成表面上或附近的间距。响应于测量的间距，通过旋转壳体单元以保持期望的间距来自动调整或选择扫描以及副扫描间距。

3. 发明授权

US5753907A Multiple beam scanning apparatus 失效
标题翻译：多光束扫描装置
公开(公告)号：US5753907A
公开(公告)日：1998-05-19
申请号：US653694
申请日：1996-05-23
申请人： Tomohiro Nakajima , Masaki Narita , Akira Shimura , Shuichi Yamazaki
发明人： Tomohiro Nakajima , Masaki Narita , Akira Shimura , Shuichi Yamazaki
IPC分类号： G02B26/12 , H04N1/113 , H04N1/191 , G01D9/42 , H01J3/14
CPC分类号： H04N1/1911 , B41J2/473 , G02B26/123 , H01S5/02212 , H01S5/4012 , H04N1/1135
摘要： A multiple beam scanning apparatus in which a plurality of light beams are repeatedly scanned at the same time, including a light source unit defining an optical axis and including plural laser diodes, collimator lenses for respectively converting light beams emitted by the laser diodes to respective parallel light fluxes, and a beam composing unit for superposing the light beams and emitting the superposed light beams therefrom. The light source unit is rotatively adjustable around the optical axis and is constructed such that respective light fluxes emitted from the beam composing unit are emitted with predetermined respective different angles at least in a main scanning direction.
摘要翻译：一种多光束扫描装置，其中同时重复扫描多个光束，包括限定光轴的光源单元，并且包括多个激光二极管，准直透镜，用于将激光二极管发射的光束分别转换为各自的平行光束和用于叠加光束并从其发射叠加的光束的光束组合单元。光源单元围绕光轴可旋转地调节，并且被构造成使得从光束组合单元发射的各个光束至少在主扫描方向上以预定的各个不同的角度发射。

4. 发明授权

US08200121B2 Image forming apparatus having a plurality of cartridges and a single writing unit 有权
标题翻译：图像形成装置具有多个盒和单个写入单元
公开(公告)号：US08200121B2
公开(公告)日：2012-06-12
申请号：US13167275
申请日：2011-06-23
申请人： Yasushi Nakazato , Kazuyuki Shimada , Tomohiro Nakajima
发明人： Yasushi Nakazato , Kazuyuki Shimada , Tomohiro Nakajima
IPC分类号： G03G21/16 , G03G15/00
CPC分类号： G03G21/1853 , G03G15/0194 , G03G21/1839 , G03G21/1842 , G03G21/185 , G03G2215/0119 , G03G2221/1603 , G03G2221/1684 , G03G2221/169 , G03G2221/183 , G03G2221/1884
摘要： An image forming apparatus including a plurality of cartridges, each including a drum, a single writing unit which is an only writing unit of the image forming apparatus. There is a structural member disposed between the plurality of cartridges and the single writing unit which extends in the direction in which the cartridges are stacked. There is a first side wall, a second side wall facing the first side wall, a top wall, and a bottom wall. The structural member is affixed to the first side wall, the second side wall, the top wall, and the bottom wall.
摘要翻译：一种图像形成装置，包括多个盒，每个盒包括鼓，作为图像形成装置的唯一书写单元的单个写入单元。存在设置在多个盒之间的结构构件和沿着盒被堆叠的方向延伸的单个书写单元。存在第一侧壁，面向第一侧壁的第二侧壁，顶壁和底壁。结构件固定在第一侧壁，第二侧壁，顶壁和底壁上。

5. 发明申请

US20110249984A1 IMAGE FORMING APPARATUS 有权
标题翻译：图像形成装置
公开(公告)号：US20110249984A1
公开(公告)日：2011-10-13
申请号：US13167275
申请日：2011-06-23
申请人： Yasushi NAKAZATO , Kazuyuki Shimada , Tomohiro Nakajima
发明人： Yasushi NAKAZATO , Kazuyuki Shimada , Tomohiro Nakajima
IPC分类号： G03G15/00
CPC分类号： G03G21/1853 , G03G15/0194 , G03G21/1839 , G03G21/1842 , G03G21/185 , G03G2215/0119 , G03G2221/1603 , G03G2221/1684 , G03G2221/169 , G03G2221/183 , G03G2221/1884
摘要： An image forming apparatus including a plurality of image forming cartridges removably mounted to an apparatus body one above the other is disclosed. Structural members each partition off a space between nearby image forming cartridges mounted to the apparatus body. The apparatus is capable of obviating banding ascribable to the vibration of the cartridges.
摘要翻译：公开了一种图像形成装置，包括可拆卸地安装到设备本体上的多个图像形成盒。结构构件各自分隔安装到装置主体的附近图像形成盒之间的空间。该装置能够消除归因于盒的振动的条带。

6. 发明授权

US07924491B2 Optical scanning device and image forming apparatus 失效
标题翻译：光学扫描装置和图像形成装置
公开(公告)号：US07924491B2
公开(公告)日：2011-04-12
申请号：US12828419
申请日：2010-07-01
申请人： Tomohiro Nakajima
发明人： Tomohiro Nakajima
IPC分类号： G02B26/08
CPC分类号： G02B26/105
摘要： A disclosed optical scanning device includes: a light source unit having plural luminous sources; a light source driving unit modulating each luminous source in accordance with pixel information; an oscillating mirror supported on a twist beam as a rotation shaft, the oscillating mirror collectively deflecting light beams from the luminous sources and performing reciprocating scanning on a surface to be scanned; an imaging optical system imaging the light beams from the luminous sources on the surface to be scanned; an oscillating mirror driving unit setting a scanning frequency f in accordance with a resonance frequency of the oscillating mirror; and a pitch adjustment unit adjusting beam spot intervals p in a sub-scanning direction in accordance with the scanning frequency f of the oscillating mirror that has been set.
摘要翻译：所公开的光学扫描装置包括：具有多个发光源的光源单元; 光源驱动单元，根据像素信息调制每个发光源; 支撑在扭转梁上作为旋转轴的振动反射镜，所述振动镜共同地偏转来自所述发光源的光束并且在待扫描的表面上进行往复扫描; 成像光学系统对来自待扫描表面上的光源的光束进行成像; 振荡镜驱动单元，根据振荡镜的共振频率设定扫描频率f; 以及音调调整单元，根据已经设定的振动反射镜的扫描频率f，调整副扫描方向的光点间隔p。

7. 发明授权

US07599105B2 Optical scanning device and image forming apparatus wherein the position of the rotational axis of the oscillating mirror is fixed in the plane orthogonal to the torsion beam such that the rotational axis of the oscillating mirror meets the intersection point of a light beam from a light source unit and a light axis of the focusing optical system 失效
标题翻译：光学扫描装置和图像形成装置，其中振动反射镜的旋转轴的位置固定在与扭转梁正交的平面中，使得振动反射镜的旋转轴与来自光源单元的光束的交点相交，和聚焦光学系统的光轴
公开(公告)号：US07599105B2
公开(公告)日：2009-10-06
申请号：US11609098
申请日：2006-12-11
申请人： Tomohiro Nakajima
发明人： Tomohiro Nakajima
IPC分类号： G02B26/08
CPC分类号： G02B26/105
摘要： A disclosed optical scanning device includes an oscillating mirror supported by a torsion beam for deflecting light beams from a light source unit to scan an object surface backward and forward. A window member transmits light beams incident on and reflected from an oscillating mirror. A sealing member holds the window member and seals a space in which the oscillating mirror is mounted.
摘要翻译：所公开的光学扫描装置包括由扭转梁支撑的振动反射镜，用于偏转来自光源单元的光束以向前和向前扫描物体表面。窗构件透射入射在振动反射镜上并从其反射的光束。密封构件保持窗构件并密封安装有振动反射镜的空间。

8. 发明授权

US07593029B2 Optical scanning device and image forming apparatus using the same 有权
标题翻译：光学扫描装置及使用其的成像装置
公开(公告)号：US07593029B2
公开(公告)日：2009-09-22
申请号：US10223294
申请日：2002-08-20
申请人： Yukito Satoh , Mitsumi Fujii , Tomohiro Nakajima , Yoshinori Hayashi , Eiji Mochizuki
发明人： Yukito Satoh , Mitsumi Fujii , Tomohiro Nakajima , Yoshinori Hayashi , Eiji Mochizuki
IPC分类号： B41J15/14 , B41J27/00 , G02B26/08
CPC分类号： H04N1/126 , G02B26/0841 , H04N1/1135 , H04N1/12
摘要： An optical deflector of the present invention includes a movable mirror and torsion bars supporting the mirror and formed integrally with the mirror. The mirror reciprocatingly vibrates to reflect a light beam to thereby deflect it. The mirror is curved in the form of an arch in a section including at least the torsion bars. The mirror deforms little during vibration even if it is thin. Small power can cause such a thin mirror to vibrate with a large amplitude.
摘要翻译：本发明的光偏转器包括可移动镜和支撑反射镜并与镜一体形成的扭杆。镜子往复振动以反射光束从而使其偏转。镜子在至少包括扭杆的部分中以拱形的形式弯曲。振动时镜子很小，变薄。小功率可能导致这样一个薄镜子以大幅度振动。

9. 发明申请

US20090225383A1 OPTICAL SCANNING DEVICE AND IMAGE FORMING APPARATUS 有权
标题翻译：光学扫描装置和图像形成装置
公开(公告)号：US20090225383A1
公开(公告)日：2009-09-10
申请号：US12396744
申请日：2009-03-03
申请人： Masahiro Soeda , Tomohiro Nakajima
发明人： Masahiro Soeda , Tomohiro Nakajima
IPC分类号： G02B26/10
CPC分类号： B41J2/473
摘要： An optical scanning device is disclosed that includes a light source unit, a light source drive unit, a deflection unit, a scanning image optical system, and a light beam detection unit. In the optical scanning device, the light source drive unit controls an amount of light emission of the light source unit, and a light emission amount control period in which the light source unit is forcibly turned OFF is set to the light source drive unit during a period from when the deflection unit deflects to an edge of a scanning angle for scanning the main scanning area to when the deflection unit deflects to a maximum deflection angle of the deflection unit within a non-image forming period.
摘要翻译：公开了一种光学扫描装置，其包括光源单元，光源驱动单元，偏转单元，扫描图像光学系统和光束检测单元。在光扫描装置中，光源驱动单元控制光源单元的发光量，将光源单元强制关闭的发光量控制周期设定在光源驱动单元的期间从偏转单元偏转到用于扫描主扫描区域的扫描角度的边缘到偏转单元在非图像形成周期内偏转到偏转单元的最大偏转角的时间段。

10. 发明申请

US20090225148A1 OPTICAL WRITING HEAD AND IMAGE FORMING APPARATUS 审中-公开
标题翻译：光学写字头和图像形成装置
公开(公告)号：US20090225148A1
公开(公告)日：2009-09-10
申请号：US12365423
申请日：2009-02-04
申请人： Yukio Itami , Tomohiro Nakajima
发明人： Yukio Itami , Tomohiro Nakajima
IPC分类号： B41J2/39
CPC分类号： B41J2/451
摘要： An optical writing head includes light-emitting element array chips; a circuit board on which the light-emitting element array chips are mounted; and an imaging element array that focuses light beams emitted from the light-emitting element array chips to form optical spots. The following inequality is satisfied: L 1
摘要翻译：光学写入头包括发光元件阵列芯片; 其上安装有发光元件阵列芯片的电路板; 以及成像元件阵列，其聚焦从发光元件阵列芯片发射的光束以形成光点。满足以下不等式： $L/ mn><< / mo>25.4xNmi> rho其中L1是常温下任何相邻的发光元件阵列芯片之间的排列间距[mm]，rho是分辨率[dpi ]，并且N是每个发光元件阵列芯片的发光点的数量。$

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