| 摘要 |
PROBLEM TO BE SOLVED: To provide an inkjet printer capable of performing double-sided printing on long paper such as roll paper, or even large format paper and performing the double-sided printing on the paper at an adequate position with high accuracy. SOLUTION: A tip portion of paper supplied from a paper supply section is captured by means of an image capture means having an image capture element such as CCD or the like provided in a printer, position data of the paper are acquired from the image, and then a position on which an image is to be printed is determined according to the acquired position data. When it is judged that the acquired position data are deviated from a prescribed range, the deviation is corrected to determine a printing start position, and then the printing is performed. Consequently, the printing positions on the front and rear faces can be accurately matched with each other. COPYRIGHT: (C)2008,JPO&INPIT
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