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    Light beam scanning apparatus for use with image forming apparatus
    83.
    发明授权
    Light beam scanning apparatus for use with image forming apparatus 失效
    用于图像形成装置的光束扫描装置

    公开(公告)号：US06243123B1

    公开(公告)日：2001-06-05

    申请号：US08919274

    申请日：1997-08-28

    申请人： Koji Tanimoto ,  Kenichi Komiya ,  Kunihiko Miura ,  Naoaki Ide ,  Jun Sakakibara

    发明人： Koji Tanimoto ,  Kenichi Komiya ,  Kunihiko Miura ,  Naoaki Ide ,  Jun Sakakibara

    IPC分类号： B41J247

    CPC分类号： H04N1/0473 ,  H04N1/1135 ,  H04N1/1911 ,  H04N2201/02439 ,  H04N2201/04712 ,  H04N2201/04734 ,  H04N2201/04744 ,  H04N2201/04762 ,  H04N2201/04794

    摘要： In a digital copying machine using a multi-beam optical system, a light beam position detector situated on a line extended from the surface of a photosensitive drum detects the passing position of each light beam scanned by a polygon mirror rotated by a polygon motor. A CPU calculates control amounts for galvanomirrors by using a beam position detector output processor, on the basis of the detection result of the beam position detector. Based on the calculated control amounts, galvanomirror drive circuits drive the galvanomirrors, thereby to control the positions of the beams in a sub-scan direction. The passing positions of the beams can be precisely detected with no special precision in assembling the optical system. In addition, the positions of the beams in the sub-scan direction can be controlled at predetermined positions, even if some change occurs in the structure of the optical system due to a variation in ambience or a variation with the passing of time.

    摘要翻译： 在使用多光束光学系统的数字复印机中，位于从感光鼓表面延伸的线上的光束位置检测器检测由多面镜马达旋转的多面镜扫描的每个光束的通过位置。 CPU根据光束位置检测器的检测结果，通过使用光束位置检测器输出处理器来计算电流计镜的控制量。 基于计算出的控制量，电流镜驱动电路驱动电流镜，从而控制光束在副扫描方向上的位置。 在组装光学系统时，可以精确地检测光束的通过位置，没有特别的精度。 此外，即使由于环境变化或随着时间的流逝的变化，光学系统的结构发生一些变化，也可以将子扫描方向上的光束的位置控制在预定位置。

    Image forming apparatus for maintaining a constant beam scanning state
    85.
    发明授权
    Image forming apparatus for maintaining a constant beam scanning state 失效
    用于保持恒定光束扫描状态的图像形成装置

    公开(公告)号：US06646668B2

    公开(公告)日：2003-11-11

    申请号：US10171682

    申请日：2002-06-17

    申请人： Koji Tanimoto ,  Kenichi Komiya ,  Jun Sakakibara ,  Koji Kawai

    发明人： Koji Tanimoto ,  Kenichi Komiya ,  Jun Sakakibara ,  Koji Kawai

    IPC分类号： B41J2455

    CPC分类号： H04N1/233 ,  G03G2215/0119 ,  H04N1/1135 ,  H04N1/12 ,  H04N1/2369 ,  H04N1/295 ,  H04N1/506 ,  H04N2201/0471 ,  H04N2201/04729 ,  H04N2201/04744 ,  H04N2201/33378

    摘要： An image forming apparatus maintains a constant beam scanning state so that light beams scan each drum always in the same state once a desired color overlapping accuracy is obtained by controlling color registration in color image formation. This mechanism achieves constantly fine color overlapping without forming a test pattern several times or consuming toner unnecessarily. A beam passage switch is provided in a laser scanning system. Sensors provided near each photosensitive drum determine whether each light beam has scanned a certain portion with no inclination or a certain scanning area, or whether each image magnification provides a desired size. Sensors for detecting scanning light beam obtains the center of light beam in accordance with information on a point at which the sensors start to respond and another point at which they cease responding, for performing several types of control based on the positional information, which provides correct information even though the size or power is different over several light beam.

    摘要翻译： 图像形成装置保持恒定的光束扫描状态，使得一旦通过控制彩色图像形成中的颜色配准获得期望的颜色重叠精度，光束将始终处于相同的状态。 这种机制实现了不间断地形成测试图案多次或不必要地消耗调色剂的颜色重叠。 光束通过开关设置在激光扫描系统中。 设置在每个感光鼓附近的传感器确定每个光束是否扫描没有倾斜或某个扫描区域的某个部分，或者每个图像放大是否提供期望的尺寸。 用于检测扫描光束的传感器根据关于传感器开始响应的点的信息和其停止响应的另一个点获得光束中心，用于基于提供正确的位置信息执行几种类型的控制 即使尺寸或功率在几个光束上不同，信息也是如此。

    Light beam scanning apparatus
    86.
    发明授权
    Light beam scanning apparatus 有权

    公开(公告)号：US06353454B1

    公开(公告)日：2002-03-05

    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

    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.

    Image forming apparatus having test patterns for correcting color discrepancy
    88.
    发明授权
    Image forming apparatus having test patterns for correcting color discrepancy 失效
    具有用于校正颜色差异的测试图案的图像形成设备

    公开(公告)号：US5854958A

    公开(公告)日：1998-12-29

    申请号：US625310

    申请日：1996-04-01

    申请人： Koji Tanimoto ,  Kenichi Komiya ,  Naoaki Ide

    发明人： Koji Tanimoto ,  Kenichi Komiya ,  Naoaki Ide

    IPC分类号： G03G15/01 ,  G03G15/00

    CPC分类号： G03G15/5058 ,  G03G15/0194 ,  G03G2215/00059 ,  G03G2215/00063 ,  G03G2215/0016 ,  G03G2215/00164 ,  G03G2215/0119

    摘要： An image forming apparatus includes image forming units to transfer images onto an image receiving medium that is moved in a specified direction together with a conveyor belt which conveys the image receiving medium. The image forming units of the apparatus form test patterns on the conveyor belt or the image receiving medium. The test patterns include a leading edge and a trailing edge along the specified direction defining a distance therebetween, the distance varying continuously. The apparatus further includes a first detector for detecting the timing of the leading edge and the trailing edge of a test pattern crossing the first detector downstream of the image forming units, a second detector for detecting a shift of an image formed by the image forming units from a proper position based on the difference in the detected timings from the leading edge to the trailing edge of the test pattern detected by the first detector, and a correction unit for correcting a shift of an image formed by the image forming units based on the shifted position of the image detected by the second detector.

    摘要翻译： 图像形成装置包括图像形成单元，用于将图像传送到与传送图像接收介质的传送带一起沿指定方向移动的图像接收介质上。 该装置的图像形成单元在传送带或图像接收介质上形成测试图案。 测试图案包括沿着指定方向的前缘和后缘，限定它们之间的距离，距离连续变化。 该装置还包括第一检测器，用于检测在图像形成单元下游与第一检测器相交的测试图案的前沿和后沿的定时;第二检测器，用于检测由图像形成单元形成的图像的偏移 基于从由第一检测器检测的测试图案的前沿到后沿的检测到的定时的差异的适当位置，以及校正单元，用于基于由第一检测器检测到的图像形成单元形成的图像的偏移 由第二检测器检测到的图像的移位位置。

    Flow rate measuring apparatus having stress reducing means
    89.
    发明授权
    Flow rate measuring apparatus having stress reducing means 有权
    具有减压装置的流量测量装置

    公开(公告)号：US08511158B2

    公开(公告)日：2013-08-20

    申请号：US12897238

    申请日：2010-10-04

    申请人： Naoyuki Kishikawa ,  Koji Tanimoto ,  Yuji Ariyoshi ,  Masahiro Kawai ,  Shinichiro Hidaka ,  Hiroyuki Uramachi

    发明人： Naoyuki Kishikawa ,  Koji Tanimoto ,  Yuji Ariyoshi ,  Masahiro Kawai ,  Shinichiro Hidaka ,  Hiroyuki Uramachi

    IPC分类号： G01F1/68

    CPC分类号： G01F1/6842 ,  G01F1/6845 ,  G01F15/185

    摘要： Provided is a flow rate measuring apparatus which prevents a reduction in flow-rate detection accuracy through reducing stress applied to a flow rate detection element. The flow rate measuring apparatus includes a support member (8) provided with a stepped portion (9) formed between a region facing a circuit board (5) and a region facing a detection portion of a flow rate detection element (3), in which the support member (8) includes a groove portion (11a) provided on a side opposite to an insertion hole (2) with respect to the region facing the detection portion, for reducing stress applied to the flow rate detection element (3).

    摘要翻译： 提供一种流量测量装置，其通过减少施加到流量检测元件的应力来防止流量检测精度的降低。 该流量测量装置包括一个支撑部件（8），该支撑部件（8）具有形成在面对电路板（5）的区域与面对流量检测元件（3）的检测部分的区域之间的阶梯部分（9），其中 所述支撑部件（8）包括相对于面向所述检测部的区域与所述插入孔（2）相反的一侧设置的沟槽部（11a），用于减小施加到所述流量检测元件（3）的应力。

    Flow rate measuring device
    90.
    发明授权
    Flow rate measuring device 有权
    流量测量装置

    公开(公告)号：US07926343B2

    公开(公告)日：2011-04-19

    申请号：US12437885

    申请日：2009-05-08

    申请人： Yuji Ariyoshi ,  Masahiro Kawai ,  Koji Tanimoto ,  Hiroyuki Uramachi

    发明人： Yuji Ariyoshi ,  Masahiro Kawai ,  Koji Tanimoto ,  Hiroyuki Uramachi

    IPC分类号： G01F1/68

    CPC分类号： G01F5/00 ,  F02D41/187 ,  G01F1/684 ,  G01F1/6842 ,  G01F1/692 ,  G01F1/72

    摘要： In a flow rate measuring device including a bypass channel having at least one bending portion and at least one channel portions, a detecting element is disposed in the bypass channel to detect the flow rate of measurement target fluid, a ratio L/H of a width H of the channel portion in which the detecting element is disposed, and a distance L from the bending portion at the upstream side of the detecting element to the upstream end portion of the detecting portion is set in range from 0 to 0.7, and a ratio D/H of a distance D from the wall surface of the base side of the detecting element to the center of the detecting portion of the surface of the detecting element and the width H of the channel portion is set in the range from 0.22 to 0.33.

    摘要翻译： 在包括具有至少一个弯曲部分和至少一个通道部分的旁通通道的流量测量装置中，检测元件设置在旁路通道中以检测测量对象流体的流量，宽度的比率L / H 设置有检测元件的通道部分的距离L和从检测部件的上游侧的弯曲部到检测部的上游端部的距离L设定在0〜0.7的范围内， 从检测元件的底侧的壁面到检测元件的表面的检测部分的中心的距离D和通道部分的宽度H的距离D的D / H设定在0.22至0.33的范围内 。