公开(公告)号：US06892043B2

公开(公告)日：2005-05-10

申请号：US10616318

申请日：2003-07-09

申请人： Eiichi Hayashi ,  Kazutsugu Ogata ,  Yuichi Ishiyama ,  Osamu Shinohara ,  Satoshi Mikajiri

发明人： Eiichi Hayashi ,  Kazutsugu Ogata ,  Yuichi Ishiyama ,  Osamu Shinohara ,  Satoshi Mikajiri

IPC分类号： G03B27/50 ,  G03G15/04 ,  G03G15/30 ,  H04N1/04

CPC分类号： G03G15/04 ,  G03G2215/0448

摘要： Speed fluctuations at a motor supplied with a two-phase current is reduced by changing the current value ratio at each phase in the drive current to feed a drive motor for an image reader to allow a light source lamp to move, free from speed fluctuations, to scan at a constant scanning speed. The drive motor is supplied with current different in value at each phase from constant current drive circuits, which, in one embodiment, are connected with current regulating variable resistors. An acceleration detector is fixed at the drive motor to detect acceleration fluctuations in rotation of the drive motor to detect speed fluctuations. In some embodiments, thermal control of the motor drive circuit is provided and vibration proofing to isolate the light receptor from the drive motor.

摘要翻译： 通过改变驱动电流中每相的电流值比率来减小提供有两相电流的电动机的速度波动，以馈送图像读取器的驱动电动机，以使光源灯移动而没有速度波动， 以恒定的扫描速度进行扫描。 驱动电动机在恒定电流驱动电路的每个相位处提供与电流不同的电流，在一个实施例中，该电流驱动电路与电流调节可变电阻器连接。 加速度检测器固定在驱动马达上，以检测驱动马达的旋转加速度波动，以检测速度波动。 在一些实施例中，提供电动机驱动电路的热控制并且防振以将光接收器与驱动电动机隔离。

公开(公告)号：US06841769B2

公开(公告)日：2005-01-11

申请号：US10232414

申请日：2002-09-03

申请人： Eiichi Hayashi ,  Yuichi Ishiyama ,  Osamu Shinohara

发明人： Eiichi Hayashi ,  Yuichi Ishiyama ,  Osamu Shinohara

IPC分类号： G03G15/00 ,  G03B27/50 ,  H04N1/04 ,  H04N1/10 ,  H04N1/107 ,  H04N1/193 ,  H01L27/00

CPC分类号： H04N1/1013 ,  H04N1/193 ,  H04N2201/0428

摘要： A vibration attenuating mechanism and method is disclosed for the purpose of maintaining a high quality of image reading or writing while scanning a document with an image processing device which includes a carriage that supports an optical scanning element, a motor which drives the optical scanning element so as to scan a document for either reading or writing data, and a housing which supports the optical scanning element and the motor. At least one of a weight or a vibration absorbing material is provided nearby the motor so as to reduce vibrations which are transferred from the motor to the optical scanning element. In this way, the quality of image reading is maintained despite the recent trend toward increased scanning speeds.

摘要翻译： 公开了一种振动衰减机构和方法，用于在使用包括支撑光学扫描元件的托架的图像处理装置扫描文档时保持高质量的图像读取或写入，驱动光学扫描元件的马达 扫描文件以读取或写入数据，以及支持光学扫描元件和电机的外壳。 在电动机附近设置重量或振动吸收材料中的至少一个，以便减少从电动机传递到光学扫描元件的振动。 以这种方式，尽管近来有增加扫描速度的趋势，仍保持图像读取的质量。