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    Image forming apparatus which performs registration correction for plural image
    4.
    发明授权
    Image forming apparatus which performs registration correction for plural image 失效
    对多幅图像进行配准校正的图像形成装置

    公开(公告)号：US5576753A

    公开(公告)日：1996-11-19

    申请号：US93693

    申请日：1993-07-20

    申请人： Tatsuhito Kataoka ,  Hiroyuki Takahashi ,  Motoaki Tahara

    发明人： Tatsuhito Kataoka ,  Hiroyuki Takahashi ,  Motoaki Tahara

    IPC分类号： B41J2/525 ,  G03G15/00 ,  G03G15/01 ,  G03G15/36 ,  G03G21/00 ,  G03G21/14 ,  H03J3/04 ,  H04N1/23 ,  H04N1/50 ,  H04N1/21

    CPC分类号： H04N1/506 ,  G03G15/0194 ,  G03G2215/0119 ,  G03G2215/0161

    摘要： An image forming apparatus includes a device for forming an image; a device for detecting information relating to the image formed by the image forming device and for repeating the detection; and a device for determining a timing at which the detection is repeated by the detecting device on the basis of the information detected by the detecting device. A device for generating a pattern signal corresponding to a predetermined pattern for detecting the amount of registration deviation by the detecting device is also provided. In addition, a transport belt for transporting the recording medium through the plurality of image forming units is provided so that the image forming units also form predetermined images on the transport belt. A device is also provided for mechanically and/or electrically correcting registration in the image forming units on the basis of the amount of registration deviation detected by the detecting device.

    摘要翻译： 图像形成装置包括用于形成图像的装置; 用于检测与由图像形成装置形成的图像有关的信息并重复检测的装置; 以及用于根据由检测装置检测到的信息确定检测装置重复检测的定时的装置。 还提供了一种用于产生对应于预定图案的图案信号的装置，用于检测由检测装置检测的登记偏差量。 此外，设置用于通过多个图像形成单元传送记录介质的传送带，使得图像形成单元也在传送带上形成预定图像。 还提供了一种装置，用于基于由检测装置检测到的对准偏差量，在图像形成单元中机械地和/或电气地校正配准。

    Laser driving method and apparatus and image-forming apparatus
    6.
    发明授权
    Laser driving method and apparatus and image-forming apparatus 有权
    激光驱动方法及装置及成像装置

    公开(公告)号：US06396858B2

    公开(公告)日：2002-05-28

    申请号：US09257934

    申请日：1999-02-26

    申请人： Takayuki Kawakami ,  Tomobumi Nakayama ,  Isamu Sato ,  Tatsuhito Kataoka ,  Katsuhide Koga ,  Yukio Yokoyama

    发明人： Takayuki Kawakami ,  Tomobumi Nakayama ,  Isamu Sato ,  Tatsuhito Kataoka ,  Katsuhide Koga ,  Yukio Yokoyama

    IPC分类号： H01S313

    CPC分类号： H01S5/0683 ,  H01S5/4025

    摘要： A laser driving method is adapted for driving a plurality of laser emitting devices. A first current to be supplied to each of the plurality of laser emitting devices is always generated. A plurality of second currents controlled according to a control signal supplied from the outside are generated when necessary. The plurality of second currents are supplied to the respective laser emitting devices under supply of the respective first currents, thereby making the laser emitting devices emit respective laser beams. The plurality of laser emitting devices are caused to emit the laser beams in time division at predetermined timing to detect each of emitted light amounts by one laser monitor. Adjustment is made to at least one of the first current and the second current supplied to each of the laser emitting devices according to a plurality of detected light amounts detected. Supply of the current to the laser emitting devices not driven is stopped when the plurality of laser emitting devices are adjusted in light amount in time division.

    摘要翻译： 激光驱动方法适于驱动多个激光发射装置。 始终产生要提供给多个激光发射装置中的每一个的第一电流。 当需要时，产生根据从外部提供的控制信号控制的多个第二电流。 多个第二电流在各自的第一电流的供给下被提供给各个激光发射装置，从而使激光发射装置发射各自的激光束。 使多个激光发射装置在预定定时以时分方式发射激光，以通过一个激光监视器检测每个发射光量。 根据检测到的多个检测光量，对提供给每个激光发射装置的第一电流和第二电流中的至少一个进行调整。 在多个激光发射装置以时间分光调整的情况下，停止向未驱动的激光发射装置提供电流。

    Image forming apparatus
    8.
    发明授权
    Image forming apparatus 失效
    图像形成装置

    公开(公告)号：US06266078B1

    公开(公告)日：2001-07-24

    申请号：US09219599

    申请日：1998-12-23

    申请人： Katsuhide Koga ,  Tomobumi Nakayama ,  Isamu Sato ,  Tatsuhito Kataoka ,  Yukio Yokoyama ,  Takayuki Kawakami

    发明人： Katsuhide Koga ,  Tomobumi Nakayama ,  Isamu Sato ,  Tatsuhito Kataoka ,  Yukio Yokoyama ,  Takayuki Kawakami

    IPC分类号： B41J2435

    CPC分类号： H04N1/4005 ,  G02B26/123 ,  G06K15/1204 ,  H04N1/40037

    摘要： An image forming apparatus, including a driving circuit for a multichip laser chip, which can limit or interrupt emission of laser light sources in accordance with a result of comparison of an optical output of each laser light source with a limiting value during time-division control is provided. The apparatus includes a plurality of laser light source, a light-amount control device for controlling an optical output of a laser beam from each of the plurality of laser light sources to a constant amount of light by performing time division processing, and a light detection device for detecting optical outputs of the plurality of laser light sources. The light detection device includes sensor units whose number is smaller than the number of the plurality of laser light sources. The apparatus also includes a limiting-value setting device for setting a limiting value for each optical output, a comparison device for comparing a time-division detection signal for a laser beam detected by the light detection device with the limiting value set by the limiting-value setting means during the time-division light-amount control by the light-amount control device, an emission control device for controlling emission of the plurality of laser light sources in accordance with an output signal from the comparison device, and a recording medium on which an image is formed by the plurality of laser beams.

    摘要翻译： 一种图像形成装置，包括用于多芯片激光芯片的驱动电路，其可以根据在每个激光光源的光输出与在时分控制期间的限制值进行比较的结果来限制或中断激光光源的发射 被提供。 该装置包括多个激光光源，光量控制装置，用于通过执行时分处理来控制来自多个激光源中的每一个的激光束的光输出到恒定量的光，以及光检测 用于检测多个激光光源的光输出的装置。 光检测装置包括数量小于多个激光光源的数量的传感器单元。 该装置还包括用于设置每个光学输出的限制值的限制值设置装置，用于将由光检测装置检测的激光束的时分检测信号与由限制值设定的限制值进行比较的比较装置， 在光量控制装置的分时光量控制期间的值设定装置，根据来自比较装置的输出信号控制多个激光光源的发射的发光控制装置，以及记录介质 由多个激光束形成图像。

    Image fixing device with phase controlled heaters
    10.
    发明授权
    Image fixing device with phase controlled heaters 失效
    具有相位控制加热器的图像定影装置

    公开(公告)号：US06990299B2

    公开(公告)日：2006-01-24

    申请号：US10643930

    申请日：2003-08-20

    申请人： Tatsuhito Kataoka

    发明人： Tatsuhito Kataoka

    IPC分类号： G03G15/20

    CPC分类号： G03G15/2039 ,  G03G15/80

    摘要： An image fixing apparatus has a first rotatable member heated by a first heater and a first temperature detecting element for detecting its temperature; a first controller for controlling electric supply to the first heater to maintain a detected temperature of the first temperature detecting element at a first target temperature; a second rotatable member heated by a second heater and forming a fixing nip with the first rotatable member; a second temperature detecting element for detecting a temperature of the second rotatable member, a second controller for controlling electric supply to the second heater to maintain the detected temperature of the second temperature detecting element at a second target temperature; and a phase controller for controlling electric energy supply phase so as to avoid overlapping of a phase of an electric power supply to the first heater and a phase of an electric power supply to the second heater.

    摘要翻译： 图像定影装置具有由第一加热器加热的第一旋转构件和用于检测其温度的第一温度检测元件; 用于控制向第一加热器供电以将第一温度检测元件的检测温度维持在第一目标温度的第一控制器; 第二可旋转构件，由第二加热器加热并与第一可旋转构件形成定影辊隙; 用于检测第二可旋转构件的温度的第二温度检测元件，用于控制向第二加热器供电以将第二温度检测元件的检测温度维持在第二目标温度的第二控制器; 以及相位控制器，用于控制电力供应相位，以避免电力供应的相位与第一加热器的重叠和向第二加热器供电的相位。