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    • 1. 发明授权
    • Drawing method for electronic blackboard
    • 电子黑板绘图方法
    • US06283567B1
    • 2001-09-04
    • US09496263
    • 2000-02-01
    • Yasushi HoriMasaki Hirano
    • Yasushi HoriMasaki Hirano
    • B41J300
    • H04N1/00408H04N1/00925H04N1/12H04N1/1255H04N1/128H04N1/193
    • In an electronic blackboard, a print head for drawing an image on the screen sheet is disposed on the upstream side of a read head for reading an image from the screen sheet, with respect to the forward travel direction of the screen sheet. When an image is printed on the screen sheet, the screen sheet is moved in the reverse travel direction. When the read head reads an image on the screen sheet, print stop processing is performed in order to stop printing operation of the print head. If an unerased image is present on the stored face of the screen sheet when printing on the screen sheet is performed, the unerased image on the stored face passes by the read head, because the screen sheet is moved in the reverse travel direction during such a printing operation. If the read head reads an unerased image, the print stop processing is performed in order to stop printing operation of the print head, and warning display processing is performed in order to display a message indicating that an unerased image is present on the screen sheet.
    • 在电子黑板中,用于在丝网片上绘制图像的打印头设置在读取头的上游侧,用于相对于丝网的前进行进方向从丝网片读取图像。 当屏幕上打印图像时,丝网片沿相反的行进方向移动。 当读取头读取屏幕上的图像时,执行打印停止处理以便停止打印头的打印操作。 如果在丝网纸上打印时,在丝网片的存储面上存在未完成的图像,则存储的面上的未画面的图像经过读取头,因为丝网片沿着相反的行进方向移动 打印操作。 如果读取头读取未故障的图像,则执行打印停止处理以便停止打印头的打印操作,并且执行警告显示处理以便显示指示屏幕上存在未故障图像的消息。