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    • 3. 发明授权
    • Apparatus for thermal printing
    • 热敏打印设备
    • US4496955A
    • 1985-01-29
    • US384284
    • 1982-06-02
    • Sadao MaeyamaKiyotaka DochiShigemichi Honda
    • Sadao MaeyamaKiyotaka DochiShigemichi Honda
    • B41J35/20B41J2/315B41J2/325B41J17/00B41J17/02B41J17/08B41J17/12B41J17/32B41J17/36B41J35/16B41J35/18B41J35/36H04N1/50G01D15/10
    • H04N1/508B41J2/325B41J35/18B41J35/36
    • Apparatus for thermally printing images, such as color images, on a print medium. The medium is moved repeatedly from a reference position through a printing region, as by rotating the medium on a platen. Thermal print elements are disposed at the print region and are selectively energizable to cause images, such as color images, to be printed. A movable web of thermally transferable material has a run interposed between the print medium and the thermal elements at the print region. In one embodiment, the web is provided with successive frames of respectively different colors of thermally transferable material arranged in repeated sequence. Energizing signals are supplied to the thermal elements representative of the image to be printed; and an image is printed in a color corresponding to the color frame then disposed at the printing region. Successive passes of the print medium are made in order to print images of the remaining colors in the sequence of frames on the web.
    • 用于在打印介质上热打印诸如彩色图像的图像的装置。 通过将介质旋转在压板上,介质从参考位置重复地移动通过打印区域。 热打印元件设置在打印区域并且选择性地激励以使得打印诸如彩色图像的图像。 热转印材料的可移动腹板在打印区域处介于打印介质和热元件之间。 在一个实施例中,幅材设置有以重复顺序排列的分别不同颜色的可热转印材料的连续帧。 激励信号被提供给表示要打印的图像的热元件; 并且以与设置在打印区域的颜色框对应的颜色打印图像。 进行打印介质的连续通过以便以网页上的帧序列打印剩余颜色的图像。
    • 4. 发明授权
    • Electrostatic printing apparatus
    • 静电印刷设备
    • US4498090A
    • 1985-02-05
    • US349776
    • 1982-02-18
    • Shigemichi HondaAkio HitachiKiyosuke SuzukiKiyotaka Dochi
    • Shigemichi HondaAkio HitachiKiyosuke SuzukiKiyotaka Dochi
    • B41J2/415G03G15/32H04N1/40H04N1/405G01D15/06
    • G03G15/323B41J2/415H04N1/40031H04N1/4056
    • An electrostatic printing apparatus of the ion-flow type for printing an image on record paper in response to an information signal includes a corona generator for generating ions; a back electrode over which the paper travels for producing a bias potential to cause the generated ions to flow from the corona generator toward the back electrode onto the recording paper; a control electrode interposed between the corona generator and the back electrode for controlling the flow of ions therebetween and including a plurality of apertures through which the ions are adapted to flow; and a control signal generator for supplying a control signal to the control electrode to cause the latter to control the amount of ion flow through each aperture, in response to the level of the information signal, to a first amount corresponding to an area on the paper which is black, a second amount corresponding to an area on the paper which is white, or at least one other amount corresponding to at least one area on the paper which is gray, with different shadings available. In one embodiment, the control signal generator supplies the control signal to the control electrode to cause the latter to control the area of ion flow through each aperture and, in another embodiment, the control signal generator supplies the control signal to the control electrode to cause the latter to control the time within which ions flow through each aperture.
    • 用于响应于信息信号在记录纸上打印图像的离子流型静电印刷装置包括用于产生离子的电晕发生器; 纸张行进的背面电极,用于产生偏置电位,使所产生的离子从电晕发生器向后电极流动到记录纸上; 位于所述电晕发生器和所述背电极之间的控制电极,用于控制所述电晕发生器和所述背电极之间的离子流,并且包括多个孔,所述离子适于通过所述孔流动; 以及控制信号发生器,用于向控制电极提供控制信号,以使控制信号响应于信息信号的电平将每个孔的离子流量控制到对应于纸上的区域的第一量 其为黑色,对应于白色的纸上的区域的第二数量,或对应于纸上灰度的至少一个区域的至少一个其他量,具有不同的阴影。 在一个实施例中,控制信号发生器将控制信号提供给控制电极,以使控制信号控制通过每个孔的离子流的面积,而在另一实施例中,控制信号发生器将控制信号提供给控制电极, 后者来控制离子流过每个孔的时间。