| 摘要 |
A capture command in the AV/C protocol of the IEEE 1394 standard is set as follows. The quantity of data to be transmitted (data_size), the number of pixels in the X-direction (image_size_x) and the number of pixels in the Y-direction (image_size_y) are all set to 0. The image type (image_format_specifier) is set to "Don't Care". A printer device, having received such a capture command, makes a blank in the corresponding print area without printing the image and then prints the next image.
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