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1. 发明授权

US06989851B2 Light beam scanning apparatus 有权
公开(公告)号：US06989851B2
公开(公告)日：2006-01-24
申请号：US10938659
申请日：2004-09-13
申请人： Koji Tanimoto , Kenichi Komiya , Jun Sakakibara , Naoaki Ide , Toshimitsu Ichiyanagi
发明人： Koji Tanimoto , Kenichi Komiya , Jun Sakakibara , Naoaki Ide , Toshimitsu Ichiyanagi
IPC分类号： B41J2/47 , B41J2/435
CPC分类号： B41J2/473 , G02B26/127 , H04N1/0473 , H04N1/1135 , H04N1/1911 , H04N2201/02439 , H04N2201/04712 , H04N2201/04734 , H04N2201/04744 , H04N2201/04749 , H04N2201/04762 , H04N2201/04794
摘要： A light beam position detecting device detects the passage positions of a plurality of light beams for scanning the surface of a photosensitive drum. The light beam position detecting device has a sensor pattern for generating an output which is continuously changed in a wide range with a variation in the passage position of the light beam in a sub-scanning direction perpendicular to a main scanning direction of the light beam. The sensor pattern precisely detects the relative scanning position of the light beam in a wide range. The passage positions of the plurality of light beams for scanning the surface of the photosensitive drum are controlled to a preset position based on the output of the sensor pattern.

2. 发明授权

US06549265B1 Image formation apparatus and method of stabilizing the emission level of semiconductor laser source used therein 失效
标题翻译：稳定其中使用的半导体激光源的发射水平的图像形成装置和方法
公开(公告)号：US06549265B1
公开(公告)日：2003-04-15
申请号：US09662180
申请日：2000-09-14
申请人： Jun Sakakibara , Koji Tanimoto , Kenichi Komiya , Toshimitsu Ichiyanagi , Naoaki Ide , Koji Kawai
发明人： Jun Sakakibara , Koji Tanimoto , Kenichi Komiya , Toshimitsu Ichiyanagi , Naoaki Ide , Koji Kawai
IPC分类号： G03B2772
CPC分类号： H04N1/4005 , G06K15/1214
摘要： The emission level of a laser source at the non-imaging time when image data “0” is input and the emission level at the imaging time when image data “1” is input are controlled so that each of them becomes a desired level. The light output intensity is stabilized at all times regardless of variations in ambient temperature. As a result, images uniform in density can be obtained.
摘要翻译：当输入图像数据“0”时的非成像时间的激光源的发射电平和输入图像数据“1”时的成像时间的发射电平被控制，使得它们中的每一个变为期望的电平。无论环境温度如何变化，光输出强度总是稳定。结果，可以获得密度均匀的图像。

3. 发明授权

US06208367B1 Light beam scanning apparatus and image forming apparatus 失效
标题翻译：光束扫描装置和图像形成装置
公开(公告)号：US06208367B1
公开(公告)日：2001-03-27
申请号：US09231878
申请日：1999-01-14
申请人： Koji Tanimoto , Kenichi Komiya , Naoaki Ide , Jun Sakakibara
发明人： Koji Tanimoto , Kenichi Komiya , Naoaki Ide , Jun Sakakibara
IPC分类号： B41J247
CPC分类号： H04N1/4005 , B41J2/473 , H04N1/0402 , H04N1/0411 , H04N1/0414 , H04N1/0443 , H04N1/0455 , H04N1/047 , H04N1/1135 , H04N1/12 , H04N1/1911 , H04N2201/02439 , H04N2201/0471 , H04N2201/04712 , H04N2201/04729 , H04N2201/04731 , H04N2201/04732 , H04N2201/04734 , H04N2201/04744 , H04N2201/04762 , H04N2201/04786 , H04N2201/04789 , H04N2201/04791 , H04N2201/04794
摘要： Four beams are caused to scan a scanning surface in the main scanning direction in parallel. The beams expose the target area between two optical sensors, not the surface of a photosensitive drum, to produce correction data to correct shifts in the exposure positions of the four beams in the main scanning direction with an accuracy of less than a small fraction of one pixel. On the basis of the correction data, an actual image formation area is set on the photosensitive drum. This makes it possible to always control the relative exposure scanning position accurately even when the relationship between the main scanning positions of the light beams is unknown.
摘要翻译：使四个光束平行扫描主扫描方向的扫描面。光束将目标区域暴露在两个光学传感器之间，而不是感光鼓的表面，以产生校正数据，以校正四个光束在主扫描方向上的曝光位置的偏移，精度小于一个像素。基于校正数据，在感光鼓上设置实际的图像形成区域。这使得即使当光束的主扫描位置之间的关系未知时，也可以精确地控制相对曝光扫描位置。

4. 发明授权

US5929891A Light beam scanning apparatus and image forming apparatus 失效
标题翻译：光束扫描装置和图像形成装置
公开(公告)号：US5929891A
公开(公告)日：1999-07-27
申请号：US970801
申请日：1997-11-14
申请人： Kenichi Komiya , Koji Tanimoto , Kunihiko Miura , Naoaki Ide , Jun Sakakibara
发明人： Kenichi Komiya , Koji Tanimoto , Kunihiko Miura , Naoaki Ide , Jun Sakakibara
IPC分类号： B41J2/44 , G02B26/10 , G06K15/12 , H04N1/04 , H04N1/047 , H04N1/113 , H04N1/12 , H04N1/191 , H04N1/17
CPC分类号： G06K15/1219 , H04N1/0473 , H04N1/1135 , H04N1/12 , H04N1/1911 , H04N2201/04712 , H04N2201/04762
摘要： A beam position detector output processor converts an output from a beam position detector into beam position information. A main control unit detects a total offset value of a plurality of operational amplifiers constituting the processor. The detected offset value is used to compensate a determination reference value used to control the sub-scanning position of a beam, or the beam position information obtained from the beam position detector output processor. As a result, the offsets of the operational amplifiers constituting the beam position detector output processor are compensated.
摘要翻译：光束位置检测器输出处理器将来自光束位置检测器的输出转换成光束位置信息。主控制单元检测构成处理器的多个运算放大器的总偏移值。检测到的偏移值用于补偿用于控制光束的副扫描位置的判定基准值或从光束位置检测器输出处理器获得的光束位置信息。结果，补偿构成光束位置检测器输出处理器的运算放大器的偏移。

5. 发明申请

US20060001732A1 Light beam scanning apparatus 有权
公开(公告)号：US20060001732A1
公开(公告)日：2006-01-05
申请号：US11214775
申请日：2005-08-31
申请人： Koji Tanimoto , Kenichi Komiya , Jun Sakakibara , Naoaki Ide , Toshimitsu Ichiyanagi
发明人： Koji Tanimoto , Kenichi Komiya , Jun Sakakibara , Naoaki Ide , Toshimitsu Ichiyanagi
IPC分类号： B41J2/435
CPC分类号： B41J2/473 , G02B26/127 , H04N1/0473 , H04N1/1135 , H04N1/1911 , H04N2201/02439 , H04N2201/04712 , H04N2201/04734 , H04N2201/04744 , H04N2201/04749 , H04N2201/04762 , H04N2201/04794
摘要： A light beam position detecting device detects the passage positions of a plurality of light beams for scanning the surface of a photosensitive drum. The light beam position detecting device has a sensor pattern for generating an output which is continuously changed in a wide range with a variation in the passage position of the light beam in a sub-scanning direction perpendicular to a main scanning direction of the light beam. The sensor pattern precisely detects the relative scanning position of the light beam in a wide range. The passage positions of the plurality of light beams for scanning the surface of the photosensitive drum are controlled to a preset position based on the output of the sensor pattern.

6. 发明申请

US20050036027A1 Light beam scanning apparatus 有权
标题翻译：光束扫描装置
公开(公告)号：US20050036027A1
公开(公告)日：2005-02-17
申请号：US10938659
申请日：2004-09-13
申请人： Koji Tanimoto , Kenichi Komiya , Jun Sakakibara , Naoaki Ide , Toshimitsu Ichiyanagi
发明人： Koji Tanimoto , Kenichi Komiya , Jun Sakakibara , Naoaki Ide , Toshimitsu Ichiyanagi
IPC分类号： H04N1/113 , B41J2/44 , G02B26/10 , H04N1/047 , H04N1/191 , B41J2/435
CPC分类号： B41J2/473 , G02B26/127 , H04N1/0473 , H04N1/1135 , H04N1/1911 , H04N2201/02439 , H04N2201/04712 , H04N2201/04734 , H04N2201/04744 , H04N2201/04749 , H04N2201/04762 , H04N2201/04794
摘要： A light beam position detecting device detects the passage positions of a plurality of light beams for scanning the surface of a photosensitive drum. The light beam position detecting device has a sensor pattern for generating an output which is continuously changed in a wide range with a variation in the passage position of the light beam in a sub-scanning direction perpendicular to a main scanning direction of the light beam. The sensor pattern precisely detects the relative scanning position of the light beam in a wide range. The passage positions of the plurality of light beams for scanning the surface of the photosensitive drum are controlled to a preset position based on the output of the sensor pattern.
摘要翻译：光束位置检测装置检测用于扫描感光鼓表面的多个光束的通过位置。光束位置检测装置具有用于产生在与光束的主扫描方向正交的副扫描方向上的光束的通过位置的变化在宽范围内连续变化的输出的传感器图案。传感器图案在宽范围内精确地检测光束的相对扫描位置。用于扫描感光鼓表面的多个光束的通过位置基于传感器图案的输出被控制到预设位置。

7. 发明授权

US06392684B1 Image forming apparatus and image forming method 失效
标题翻译：图像形成装置及图像形成方法
公开(公告)号：US06392684B1
公开(公告)日：2002-05-21
申请号：US09606744
申请日：2000-06-29
申请人： Koji Tanimoto , Kenichi Komiya , Jun Sakakibara , Naoaki Ide , Toshimitsu Ichiyanagi
发明人： Koji Tanimoto , Kenichi Komiya , Jun Sakakibara , Naoaki Ide , Toshimitsu Ichiyanagi
IPC分类号： B41J247
CPC分类号： B41J2/473 , G02B26/123
摘要： There is provided an image forming apparatus which can implement digital control of a laser beam scan (analog amount) that moves at high speed, without using any high-speed, multi-bit A/D converter. Upon executing a digital process on the basis of analog detection value Vo corresponding to the passage position or light beam power of a light beam with which a photosensitive drum is irradiated, comparator CMP0, comparison reference value (threshold value) Vr of which changes in correspondence with detection value (integration output) Vo, is used. New comparison reference value Vr is supplied to comparator CMP0 on the basis of digital data BMDA corresponding to output CMPOUT of this comparator.
摘要翻译：提供了一种图像形成装置，其可以实现高速移动的激光束扫描（模拟量）的数字控制，而不使用任何高速，多位A / D转换器。在基于与照射感光鼓的光束的通过位置或光束功率相对应的模拟检测值Vo执行数字处理时，比较器CMP0，其对应的比较基准值（阈值）Vr变化具有检测值（积分输出）Vo。基于对应于该比较器的输出CMPOUT的数字数据BMDA，将新的比较参考值Vr提供给比较器CMP0。

8. 发明授权

US06188424B1 Light beam scanning, image forming apparatus, and method of adjusting the image forming apparatus 失效
标题翻译：光束扫描，图像形成装置以及调整图像形成装置的方法
公开(公告)号：US06188424B1
公开(公告)日：2001-02-13
申请号：US09235398
申请日：1999-01-22
申请人： Kenichi Komiya , Koji Tanimoto , Naoaki Ide , Jun Sakakibara
发明人： Kenichi Komiya , Koji Tanimoto , Naoaki Ide , Jun Sakakibara
IPC分类号： B41J247
CPC分类号： G02B26/123 , B41J2/473
摘要： A light beam is made to scan and expose a photosensitive drum in the main scanning direction and the passing position of the light beam in the sub-scanning direction is sensed. On the basis of the result of the sensing, the light beam is shifted in the sub-scanning direction when the beam is made to scan by a scanner so that the passing position may come in a target range, which brings the passing position to the proper position. After the position control, the passing position of the light beam is confirmed and controlled so that the passing position may fall on the proper position a specific number of times consecutively. When the light beam is shifted in the sub-scanning direction, the passing position of the light beam is brought into a final target range in such a manner that the target range is forced to converge stepwise in a first range and then in a second range narrower than the first range.
摘要翻译：使光束在主扫描方向上扫描和曝光感光鼓，并且感测光束在副扫描方向上的通过位置。基于感测的结果，当通过扫描仪对光束进行扫描时，光束在副扫描方向上移动，使得通过位置可能进入目标范围，这使得通过位置到适当的位置在位置控制之后，确认和控制光束的通过位置，使得通过位置可以连续地落在适当的位置上一定次数。当光束沿副扫描方向移动时，使光束的通过位置成为最终目标范围，使得目标范围被迫在第一范围内然后在第二范围内逐步收敛比第一范围窄。

9. 发明授权

US06831671B2 Light beam scanning apparatus 有权
标题翻译：光束扫描装置
公开(公告)号：US06831671B2
公开(公告)日：2004-12-14
申请号：US10067868
申请日：2002-02-08
申请人： Koji Tanimoto , Kenichi Komiya , Jun Sakakibara , Naoaki Ide , Toshimitsu Ichiyanagi
发明人： Koji Tanimoto , Kenichi Komiya , Jun Sakakibara , Naoaki Ide , Toshimitsu Ichiyanagi
IPC分类号： B41J247
CPC分类号： B41J2/473 , G02B26/127 , H04N1/0473 , H04N1/1135 , H04N1/1911 , H04N2201/02439 , H04N2201/04712 , H04N2201/04734 , H04N2201/04744 , H04N2201/04749 , H04N2201/04762 , H04N2201/04794
摘要： A light beam position detecting device detects the passage positions of a plurality of light beams for scanning the surface of a photosensitive drum. The light beam position detecting device has a sensor pattern for generating an output which is continuously changed in a wide range with a variation in the passage position of the light beam in a sub-scanning direction perpendicular to a main scanning direction of the light beam. The sensor pattern precisely detects the relative scanning position of the light beam in a wide range. The passage positions of the plurality of light beams for scanning the surface of the photosensitive drum are controlled to a preset position based on the output of the sensor pattern.
摘要翻译：光束位置检测装置检测用于扫描感光鼓表面的多个光束的通过位置。光束位置检测装置具有用于产生在与光束的主扫描方向正交的副扫描方向上的光束的通过位置的变化在宽范围内连续变化的输出的传感器图案。传感器图案在宽范围内精确地检测光束的相对扫描位置。用于扫描感光鼓表面的多个光束的通过位置基于传感器图案的输出被控制到预设位置。

10. 发明授权

US06496212B1 Light beam scanning apparatus 有权
公开(公告)号：US06496212B1
公开(公告)日：2002-12-17
申请号：US09461210
申请日：1999-12-15
申请人： Koji Tanimoto , Kenichi Komiya , Jun Sakakibara , Naoaki Ide , Toshimitsu Ichiyanagi
发明人： Koji Tanimoto , Kenichi Komiya , Jun Sakakibara , Naoaki Ide , Toshimitsu Ichiyanagi
IPC分类号： B41J247
CPC分类号： B41J2/473 , G02B26/127 , H04N1/0473 , H04N1/1135 , H04N1/1911 , H04N2201/02439 , H04N2201/04712 , H04N2201/04734 , H04N2201/04744 , H04N2201/04749 , H04N2201/04762 , H04N2201/04794
摘要： A light beam position detecting device detects the passage positions of a plurality of light beams for scanning the surface of a photosensitive drum. The light beam position detecting device has a sensor pattern for generating an output which is continuously changed in a wide range with a variation in the passage position of the light beam in a sub-scanning direction perpendicular to a main scanning direction of the light beam. The sensor pattern precisely detects the relative scanning position of the light beam in a wide range. The passage positions of the plurality of light beams for scanning the surface of the photosensitive drum are controlled to a preset position based on the output of the sensor pattern.

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