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    Method and apparatus for color image forming capable of performing a precise synchronization between toner image forming per color and its overlaying
    3.
    发明申请
    Method and apparatus for color image forming capable of performing a precise synchronization between toner image forming per color and its overlaying 有权
    用于彩色图像形成的方法和装置，其能够执行每种颜色的调色剂图像形成与其重叠之间的精确同步

    公开(公告)号：US20030052957A1

    公开(公告)日：2003-03-20

    申请号：US10214742

    申请日：2002-08-09

    Inventor： Yasufumi Yamada ,  Mitsuru Takahashi ,  Takuroh Kamiya ,  Mikio Kamoshita ,  Koichi Kudo

    IPC: G03G015/01

    CPC classification number: H04N1/506 ,  G03G15/0121 ,  G03G15/0173 ,  G03G2215/0158 ,  G03G2215/0177 ,  H04N1/1135 ,  H04N1/12 ,  H04N2201/03108 ,  H04N2201/0471 ,  H04N2201/04722 ,  H04N2201/04731 ,  H04N2201/04734 ,  H04N2201/04756 ,  H04N2201/04772 ,  H04N2201/04791

    Abstract: An image forming apparatus includes a drum, an optical scanning mechanism, a development mechanism, an intermediate transfer member, movement detecting mechanisms, and a controller. The optical scanning mechanism deflects a laser light beam to form a latent image on a photosensitive surface of the drum. The development mechanism contains a plurality of different color toners and develops the latent image into a color toner image. The intermediate transfer member is rotated in synchronism with a rotation of the drum and receives the color toner image multiple times to form thereon a composite color toner image including multiple images of the different color toners overlaying one to another. The movement detecting mechanisms detect respective movements of the drum and the intermediate transfer belt. The controller controls respective rotations of the drum and the intermediate transfer belt with results of respective detection performed by the plurality of movement detecting mechanisms.

    Abstract translation: 图像形成装置包括鼓，光学扫描机构，显影机构，中间转印部件，运动检测机构和控制器。 光学扫描机构使激光束偏转以在感光表面上形成潜像。 显影机构包含多种不同颜色的调色剂并将潜像显影成彩色调色剂图像。 中间转印部件与滚筒的旋转同步旋转，并且多次接收彩色调色剂图像，以在其上形成包括彼此重叠的不同颜色调色剂的多个图像的复合彩色调色剂图像。 运动检测机构检测滚筒和中间转印带的相应运动。 控制器通过多个运动检测机构执行的相应检测结果控制滚筒和中间转印带的各旋转。

    Image reading apparatus and method
    5.
    发明申请
    Image reading apparatus and method 失效
    图像读取装置及方法

    公开(公告)号：US20020027163A1

    公开(公告)日：2002-03-07

    申请号：US09938572

    申请日：2001-08-27

    Inventor： Yoshito Haba

    IPC: G06K007/10 ,  G06K007/14

    CPC classification number: H04N1/00241 ,  H04N1/00236 ,  H04N1/3263 ,  H04N1/32683 ,  H04N2201/0015 ,  H04N2201/02439 ,  H04N2201/03108 ,  H04N2201/04756 ,  H04N2201/04791 ,  H04N2201/04794 ,  H04N2201/329

    Abstract: An image reading apparatus prevents degradation of image quality and a delay in the image reading time which are caused by interruption of reading of image data. A speed at which a host computer reads image data from an image reading apparatus and temporarily stores it therein is examined. If the resulting speed is lower than a reference value which has been set so that an operation to avoid an overflow of a buffer RAM in the image reading apparatus may not be caused, the sub-scanning speed of the image reading apparatus is set lower, and the image is read at the lower speed.

    Abstract translation: 图像读取装置防止由图像数据的读取中断引起的图像质量的劣化和图像读取时间的延迟。 检查主计算机从图像读取装置读取图像数据并暂时存储在其中的速度。 如果所得到的速度低于已被设置为使得可能不会引起避免图像读取装置中的缓冲RAM溢出的操作的参考值，则将图像读取装置的副扫描速度设置得较低， 并以较低的速度读取图像。

    Copying apparatus having a hand-held scanner synchronized to the recording unit
    6.
    发明授权
    Copying apparatus having a hand-held scanner synchronized to the recording unit 失效
    具有与记录单元同步的手持式扫描仪的复印装置

    公开(公告)号：US3346692A

    公开(公告)日：1967-10-10

    申请号：US53607766

    申请日：1966-03-21

    Applicant: INST SCIENT INFORMATION INC

    Inventor： EUGENE GARFIELD ,  LAWRENCE LUTZKER

    IPC: H04N1/047 ,  H04N1/06 ,  H04N1/107

    CPC classification number: H04N1/0628 ,  H04N1/047 ,  H04N1/0607 ,  H04N1/0664 ,  H04N1/107 ,  H04N2201/02439 ,  H04N2201/03108 ,  H04N2201/0471 ,  H04N2201/04724 ,  H04N2201/04731 ,  H04N2201/04732 ,  H04N2201/04734 ,  H04N2201/04739 ,  H04N2201/04756 ,  H04N2201/04791 ,  H04N2201/04794

    Abstract: 1,168,111. Electric synchronizing. INSTITUTE FOR SCIENTIFIC INFORMATION. 19 Jan., 1967 [21 March, 1966], No. 2846/67. Heading H2L. [Also in Division H4] A document to be copied is scanned linewise by a photo-electric strip element 30, Fig. 1, which is moved down the document by hand to introduce the other component of scan, the resulting electric signals being applied to a xerographic recorder 14 in which the recording strip 50 is caused to move in synchronism with the movements imparted to element 30. A rotatable apertured drum is mounted on the side of the housing for element 30 so as to engage the document and co-operates with a lamp (not shown) and a photo-cell 82 to generate pulses representing by their number the distance moved. The recording strip is moved by a motor 66 whilst a similar drum and photo-cell assembly 92, 98 produces pulses representing the strip movement. The pulses from photo-cell 82 drive an up-down bit counter 88, Fig. 2, in one direction, whilst the pulses from photo-cell 98 drive the counter in the reverse direction back to zero. Departure of the count from zero is detected by threshold logic 90 which controls motor 66. The photo. electric element comprises a known assembly of a photo-sensitive strip and a linear array of biased diodes. The arrangement is controlled by a ramp or staircase generator 34 which brings the diodes into conduction in sequence thereby simultating a line scan. The line scan in the xerographic recorder is effected by an electrode wheel assembly 44 which rotates in a direction transverse the direction of movement of strip 50. Each electrode is in the form of a spoke which terminates at the wheel rim and co-operates with an earthed plate 42 to lay down charges on the strip. Signals are applied to the electrodes via brush 38 bearing on the wheel hub. Commencement of line scan by the operative electrode is detected by a photo-cell 122 when the spoke interrupts the light beam from lamp 118. The photo-cell triggers generator 34 by way of a NOR gate 116 which is controlled as shown in Fig. 2, by a signal from a NAND gate 112 which in turn receives signals from flip-flops 110 and 114 triggered at each pulse from photo-cells 82 and 98. The circuit operates to synchronize the line scan in photo-electric element 30 to the recording electrode scan such that one scan only is made in response to each incremental movement which gives rise to a pulse from photo-cell 82. The recording is developed in known manner by apparatus 52. Photo-electric element 30 is exposed to the document through a slit 81, the housing having also an opening so that the user may see what is being copied.

    Adjusting scan rate within scanning device
    7.
    发明授权
    Adjusting scan rate within scanning device 有权
    调整扫描装置内的扫描速度

    公开(公告)号：US07995234B2

    公开(公告)日：2011-08-09

    申请号：US11831846

    申请日：2007-07-31

    Applicant: Kevin Bokelman ,  Ryan M. Smith ,  Edward A. Hill

    Inventor： Kevin Bokelman ,  Ryan M. Smith ,  Edward A. Hill

    IPC: G06K15/00 ,  H04N1/04 ,  H04N1/36

    CPC classification number: H04N1/0473 ,  H04N1/1017 ,  H04N1/12 ,  H04N1/1911 ,  H04N1/32358 ,  H04N1/32448 ,  H04N2201/02439 ,  H04N2201/03108 ,  H04N2201/04755 ,  H04N2201/04756 ,  H04N2201/04794

    Abstract: A scanning device includes a scanning mechanism, a memory, a processing mechanism, and a scan rate adjustment mechanism. The scanning mechanism scans a media sheet having an image thereon at a variable scan rate, to yield raw data. The memory temporarily stores the raw data. The processing mechanism converts the raw data within the memory into processed data. The raw data is removed from the memory as the raw data is converted. The scan rate adjustment mechanism adjusts the variable scan rate, based on one or more of an amount of free space within the memory, a fill rate at which the raw data is filling the memory, and a removal rate at which the raw data is being removed from the memory, so that the memory does not become completely full.

    Abstract translation: 扫描装置包括扫描机构，存储器，处理机构和扫描速率调整机构。 扫描机构以可变扫描速率扫描其上具有图像的介质片，以产生原始数据。 内存暂时存储原始数据。 处理机制将存储器中的原始数据转换为处理数据。 当原始数据被转换时，原始数据将从存储器中删除。 扫描速率调整机构基于存储器内的可用空间量，原始数据填充存储器的填充率以及原始数据的移除速度的一个或多个来调整可变扫描速率 从内存中删除，以使内存不会完全充满。

    IMAGE READING APPARATUS
    8.
    发明申请
    IMAGE READING APPARATUS 有权
    图像阅读器

    公开(公告)号：US20080106773A1

    公开(公告)日：2008-05-08

    申请号：US11934217

    申请日：2007-11-02

    Applicant: Shigeki Akiyama

    Inventor： Shigeki Akiyama

    IPC: H04N1/04

    CPC classification number: H04N1/047 ,  H04N1/0464 ,  H04N1/1017 ,  H04N1/12 ,  H04N1/193 ,  H04N1/32448 ,  H04N2201/02416 ,  H04N2201/03108 ,  H04N2201/0471 ,  H04N2201/04725 ,  H04N2201/04731 ,  H04N2201/04734 ,  H04N2201/04755 ,  H04N2201/04756 ,  H04N2201/04786 ,  H04N2201/04789 ,  H04N2201/04791

    Abstract: In an image reading apparatus, a retreat control device moves a conveyance target through a conveyance mechanism, when a stop operation is performed by a stop control device, in an opposite direction to an image reading direction to a position further from a restart reference position set by a position setting unit. A reading control device again moves the conveyance target, which has been moved by the retreat control device, at a constant speed in the image reading direction under a predetermined condition; inputs a line start signal to a reading unit when an offset time set by a time setting unit has elapsed from a time point when the conveyance target reaches the restart reference position; and periodically inputs a line start signal to thereby cause the reading unit to perform a reading operation from a point; where the reading unit is located when the offset time has elapsed.

    Abstract translation: 在图像读取装置中，退避控制装置在通过停止控制装置执行停止操作时沿与图像读取方向相反的方向通过输送机构移动输送目标到远离重新启动基准位置组的位置 通过位置设定单元。 读取控制装置在预定条件下，在图像读取方向上以恒定的速度再次移动由退避控制装置移动的输送目标; 当从传送目标到达重新启动基准位置的时间点起经过了由时间设定单元设定的偏移时间时，将行开始信号输入到读取单元; 并且周期性地输入行开始信号，从而使读取单元从一点执行读取操作; 当偏移时间过去时读取单元位于哪里。

    Multibeam scanner
    10.
    发明授权
    Multibeam scanner 有权
    多波束扫描仪

    公开(公告)号：US06504147B1

    公开(公告)日：2003-01-07

    申请号：US09711103

    申请日：2000-11-14

    Applicant: Koji Ito ,  Ryota Kato ,  Yutaka Hattori

    Inventor： Koji Ito ,  Ryota Kato ,  Yutaka Hattori

    IPC: H01J314

    CPC classification number: H04N1/0411 ,  G02B26/123 ,  G06K15/1219 ,  G06K2215/111 ,  H04N1/0402 ,  H04N1/0414 ,  H04N1/0443 ,  H04N1/0455 ,  H04N1/1135 ,  H04N1/12 ,  H04N1/1911 ,  H04N2201/03108 ,  H04N2201/0471 ,  H04N2201/04725 ,  H04N2201/04731 ,  H04N2201/04734 ,  H04N2201/04756 ,  H04N2201/04791

    Abstract: In a multibeam scanner, the resolution switching circuit 91 of the control unit 9 transmits a control signal to the motor drive circuit 92 and controls the motor drive circuit 92 to rotate the drive motor 78 at a velocity corresponding to the resolution. The resolution switching circuit 91 transmits a resolution signal to the image generation circuit 93 and controls the image generated circuit 93 to generate output image data that conforms to the resolution. The LD1 control circuit 95 and the LD2 control circuit 96 are modulated by the modulation circuit 94 to oscillate the laser diodes LD1 and LD2 based on the output image data. When performing exposure at a low resolution, the rearmost scanning line SL2 in the previous group of lines and the forwardmost scanning line SL1 in the following group of scanning lines are exposed according to the same image signal, thereby preventing a loss of image quality by preventing open areas of the interval I2 between scanning lines from becoming noticeable.

    Abstract translation: 在多波束扫描器中，控制单元9的分辨率切换电路91将控制信号发送到马达驱动电路92，并控制马达驱动电路92以与分辨率对应的速度旋转驱动马达78。 分辨率切换电路91将分辨率信号发送到图像生成电路93，并且控制图像生成电路93以生成符合分辨率的输出图像数据。 LD1控制电路95和LD2控制电路96由调制电路94进行调制，以便基于输出图像数据振荡激光二极管LD1和LD2。 当以低分辨率进行曝光时，根据相同的图像信号曝光前一组线中的最后扫描线SL2和下一组扫描线中的最前面的扫描线SL1，从而防止图像质量的损失 扫描线之间的间隔I2的开放区域变得明显。

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