Heatsink and circuit board with heatsink

    公开(公告)号:US09775265B2

    公开(公告)日:2017-09-26

    申请号:US15195510

    申请日:2016-06-28

    Inventor: Shogo Yoneda

    Abstract: A heatsink to be mounted on a circuit board including a plurality of electronic parts is constituted of a conductive and rectangular plate-shaped member, and mounted on the circuit board such that a main surface of the heatsink blocks an airflow generated on the circuit board, the heatsink being electrically grounded. The main surface includes a contacting portion disposed in contact with the circuit board and an isolated portion separated from the circuit board, the isolated portion being cut into two parts along a straight line extending in a direction away from the circuit board. The two parts are each bent such that an end portion on a side of the straight line is oriented to a downstream side of the airflow, so that an opening is defined between the respective end portions of the two parts on the side of the straight line.

    Image forming apparatus detecting status of motor

    公开(公告)号:US10705462B2

    公开(公告)日:2020-07-07

    申请号:US15881613

    申请日:2018-01-26

    Inventor: Shogo Yoneda

    Abstract: A motor driving unit controls motor conducted current of a brushed DC motor on the basis of a motor control signal. A motor control unit provides the motor control signal to the motor driving unit and thereby controls the brushed DC motor. A brush noise detecting unit detects brush noises in conducted current of the brushed DC motor and outputs a brush noise detection signal. A speed determining unit determines a time interval of the brush noises and determines a rotation speed of the brushed DC motor on the basis of the time interval. Further, the motor control unit determines whether the brushed DC motor is in a lock status or not on the basis of the rotation speed in a period that the motor control signal is provided to the motor driving unit to cause the brushed DC motor to be in operation.

    IMAGE FORMING APPARATUS DETECTING STATUS OF MOTOR

    公开(公告)号:US20180217544A1

    公开(公告)日:2018-08-02

    申请号:US15881613

    申请日:2018-01-26

    Inventor: Shogo Yoneda

    Abstract: A motor driving unit controls motor conducted current of a brushed DC motor on the basis of a motor control signal. A motor control unit provides the motor control signal to the motor driving unit and thereby controls the brushed DC motor. A brush noise detecting unit detects brush noises in conducted current of the brushed DC motor and outputs a brush noise detection signal. A speed determining unit determines a time interval of the brush noises and determines a rotation speed of the brushed DC motor on the basis of the time interval. Further, the motor control unit determines whether the brushed DC motor is in a lock status or not on the basis of the rotation speed in a period that the motor control signal is provided to the motor driving unit to cause the brushed DC motor to be in operation.

    LIQUID EJECTION DEVICE CAPABLE OF SUPPRESSING DRYING OF LIQUID SURFACE OF EJECTION PORT, AND LIQUID CIRCULATION METHOD

    公开(公告)号:US20240383253A1

    公开(公告)日:2024-11-21

    申请号:US18662501

    申请日:2024-05-13

    Inventor: Shogo Yoneda

    Abstract: A liquid ejection device includes an ejection portion, an accommodating portion, a lowering processing portion, and a circulation processing portion. The ejection portion has a first accommodation space configured to accommodate a liquid and eject the liquid from an ejection port communicating with the first accommodation space. The accommodating portion has a second accommodation space below the ejection port and configured to accommodate the liquid to be supplied to the ejection portion, in the accommodating portion, a space above a water level of the liquid accommodated in the second accommodation space communicates with the atmosphere. The lowering processing portion lowers the water level of the liquid accommodated in the accommodating portion with respect to the ejection port. The circulation processing portion circulates the liquid along a circulation path passing through the ejection portion after the water level of the liquid is lowered by the lowering processing portion.

    Image Forming Apparatus, Image Forming Method, and Recording Medium That Prevent Missing of Information in Performing Reduced Printing of Image Data
    5.
    发明申请
    Image Forming Apparatus, Image Forming Method, and Recording Medium That Prevent Missing of Information in Performing Reduced Printing of Image Data 审中-公开
    图像形成装置,图像形成方法和防止在执行图像数据的打印减少信息时丢失的记录介质

    公开(公告)号:US20160198061A1

    公开(公告)日:2016-07-07

    申请号:US14990726

    申请日:2016-01-07

    Inventor: Shogo Yoneda

    Abstract: An image forming apparatus includes an equal-magnification-region-designation accepting circuit, a front-surface-image generating circuit, a back-surface-image generating circuit, and a duplex printing circuit. The front-surface-image generating circuit reduces the image in accordance with the reduction magnification to generate image data representing the reduced image as image data representing a front-surface-side image of duplex printing. The back-surface-image generating circuit uses the designated equal-magnification region in the image before the reduction by a magnification equal to the magnification of the image to generate image data representing a back-surface-side image of duplex printing. The duplex printing circuit prints an image corresponding to the front-surface-side image data on a front surface of a predetermined paper sheet and an image corresponding to the back-surface-side image data on the back surface of the paper sheet.

    Abstract translation: 图像形成装置包括等倍放大区域指定接收电路,前表面图像生成电路,背面图像生成电路和双面打印电路。 前表面图像生成电路根据缩小倍率来缩小图像,生成表示缩小图像的图像数据,作为表示双面打印的正面侧图像的图像数据。 背面图像生成电路在缩小前的图像中使用与图像的倍率相等的倍率的指定的等倍率区域,生成表示双面打印的背面侧图像的图像数据。 双面打印电路在预定纸张的前表面上印刷与前表面侧图像数据相对应的图像和在纸张背面上与背面侧图像数据相对应的图像。

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