| 摘要 |
PURPOSE:To automatically adjust a CCD reading part to an optimum position by providing a processing part that identifies in what address on the CCD a bar-shaped graphic drawn on a sheet is located, and that calculates the length of a movement to output a moving signal. CONSTITUTION:In what address on the CCD 5 of the CCD reader part 3 the bar-shaped graphic 4 drawn on the sheet 1 is identified and stored. The processing part 6 calculates the moving lengths in the horizontal and rotational directions from vertical shifting in address on the CCD 5 of the graphic 4 while the reader part 3 is made move in the horizontal direction, to output moving signals. A pulse motor control part 10 receives the moving signals from the processing part 6, and outputs control signals to pulse motors 7, 8, 9 for horizontal, rotational, and vertical moving. Receiving these signals, the pulse motors 7, 8, 9 for respective movings carries the reader part 3 automatically to an optimum position via a rotational moving mechanism 11.
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