| 摘要 |
In an arrangement where a host computer and a printer are connected to an image scanner, a data transfer control (DTC) circuit selectively transmits image data produced from the image scanner to either the host computer or the printer according to a transfer mode set in the DTC circuit. The DTC circuit is selectively set to either one of a first, second, and third transfer modes. In the first transfer mode, image data sent from the host computer is sent to the printer via the image scanner. In the second transfer mode, image data captured by the image scanner is sent to the host computer. In the third transfer mode, the image data captured by the image scanner is sent to the printer for printing.
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