| 摘要 |
PURPOSE: To calculate the dislocation quantity between a screen part and a printed circuit board for production without printing cream solder on the printed circuit board actually. CONSTITUTION: This screen printer adjusts the positions of a screen part 5 in the directions of X, Y,θwith position adjusting means 6, 7, 8 for positioning the screen part 5 and a printed circuit board and printing on the printed circuit board, and is provided with a means for picking up designated patterns on the printed circuit board and the screen part 5 by a recognizing camera 4 with the screen part 5 and the printed circuit board being positioned, an image processing part 13 for detecting the dislocation quantity between the screen part 5 and the printed circuit board from images of the designated patterns stored by the recognizing camera 4, and a control part 14 for storing the dislocation quantity as a position correction offset quantity by position adjusting means 6, 7, 8.
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