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    • 3. 发明授权
    • Image printing apparatus and image printing method
    • 图像打印装置和图像打印方法
    • US07583282B2
    • 2009-09-01
    • US11521049
    • 2006-09-14
    • Kazumichi YamauchiSatoshi SakataAkira OkamotoKenji YamamotoKazutoshi Yoshimura
    • Kazumichi YamauchiSatoshi SakataAkira OkamotoKenji YamamotoKazutoshi Yoshimura
    • B41J2/435
    • G03G15/5062
    • When images are to be printed on two, front and lower surfaces of a sheet, in order to register the position of the image on the front surface and the position of the image on the back surface highly accurately, an image printing apparatus of this invention includes an image printing section which forms the image for the front surface of the sheet as well as an image of a reference mark on a photosensitive member at one portion in a region outside an image printing region and transfers the images onto the front surface of the sheet, a fixing unit which fixes the transferred images on the sheet, a line sensor which detects the reference mark after fixing printed on the front surface of the sheet, an arithmetic operating section which obtains a shrinkage factor of the sheet on the basis of a size of the reference mark before fixing and a size of the detected reference mark after fixing and calculates a position and magnification of the image to be printed on the back surface on the basis of the shrinkage factor, and a control section which performs control operation to print the image on the back surface of the sheet on the basis of the calculated position and the calculated magnification.
    • 当将图像打印在片材的两个前表面和下表面上时,为了高精度地注册图像在前表面上的图像位置和图像的位置,本发明的图像打印设备 包括图像打印部分,其在图像打印区域的外部的区域中的一个部分处形成用于片材的前表面的图像以及感光部件上的参考标记的图像,并将图像转印到 片材,将转印图像固定在片材上的固定单元,检测印刷在片材前表面上的固定后的基准标记的线传感器,算术运算部件,其根据 固定后的基准标记的尺寸和固定后检测出的基准标记的尺寸,并且基于基础计算要印刷在背面上的图像的位置和放大倍率 以及控制部,其根据计算出的位置和计算出的放大倍数进行在片材背面上打印图像的控制动作。
    • 4. 发明授权
    • Image printing apparatus
    • 图像打印装置
    • US07525564B2
    • 2009-04-28
    • US11362009
    • 2006-02-27
    • Akira OkamotoKazumichi YamauchiKazutoshi Yoshimura
    • Akira OkamotoKazumichi YamauchiKazutoshi Yoshimura
    • G03G15/00
    • G03G15/6564G03G15/235G03G2215/00599G03G2215/00945
    • An image printing apparatus, which can correct variation in inter-sheet distance at the time of conveyance of transfer sheets, comprising an image printing section which performs image printing by sequentially conveying a plurality of transfer sheets at predetermined intervals at a first convey velocity and performing transfer and fixing of a toner image on each transfer sheet, a timepiece section which measures a time required for the image printing section to perform image printing on the each transfer sheet, and a delivery convey section which receives each transfer sheet on which image printing is performed by the image printing section and delivers the each transfer sheets while adjusting intervals therebetween by conveying the each transfer sheets upon changing the convey velocity to a second convey velocity set on the basis of the measured time required for the image printing on the each transfer sheet.
    • 一种图像打印装置,其可以校正传送转印纸时的片间距离的变化,包括:图像打印部,其通过以预定间隔以第一传送速度依次传送多张转印纸并执行图像打印,并执行 转印和固定每个转印纸上的调色剂图像,测量图像打印部分在每个转印纸上进行图像打印所需的时间的计时部分和接收图像打印的每个转印纸的输送传送部分 由图像打印部执行并且通过基于在每个转印纸上的图像打印所需的测量时间将传送速度改变为第二传送速度来传送每个转印纸,同时调整每个转印纸张,并递送每个转印纸张 。
    • 5. 发明授权
    • Sheet feeding apparatus with ultrasonic sensor for detecting multiple feed of papers
    • 带超声波传感器的纸张进给装置,用于检测纸张的多次进纸
    • US07404559B2
    • 2008-07-29
    • US11050785
    • 2005-02-07
    • Kazutoshi YoshimuraKazumichi YamauchiAkira Okamoto
    • Kazutoshi YoshimuraKazumichi YamauchiAkira Okamoto
    • B65H7/12
    • B65H7/125B65H2515/40B65H2553/30B65H2220/01
    • Disclosed is a sheet feeding apparatus comprises: a multiple feed detecting section; a temperature detecting section; and a control section. The multiple feed detecting section has an ultrasonic transmitter and an ultrasonic receiver arranged on opposite sides of the conveyance path for conveying the sheets, and detects the feed of multiple sheets by, transmitting an ultrasonic wave from the ultrasonic transmitter to the ultrasonic receiver through at least one sheet traveling along the conveyance path, and comparing the ultrasonic wave received by the ultrasonic receiver with a reference level. The temperature detecting section detects a temperature of the apparatus, and the control section adjusts a detecting condition of the multiple feed detecting section based on the detected temperature.
    • 公开了一种片材进给装置,包括:多进给检测部; 温度检测部; 和控制部分。 多重进给检测部具有布置在输送路径的相对侧上的超声波发送器和超声波接收器,用于输送片材,并且通过至少从超声波发送器将超声波从超声波发送器发送到超声波接收器来检测多张片材的馈送 一个片材,沿着输送路径行进,并将由超声波接收器接收的超声波与基准电平进行比较。 温度检测部分检测装置的温度,并且控制部分基于检测到的温度来调节多进给检测部分的检测条件。