| 摘要 |
A registration system for aligning a printing screen frame with an image platform includes a plurality of arms, rotatably secured to a lower surface of the image platform. The rotatable arms have retractable registration elements mounted on the outer ends thereof, and have inner ends which are mounted so as to be translated outwardly from and towards the lower surface of the image platform upon rotation of the arms, between retracted and registration positions. In the registration position, the registration elements are aligned with and cooperate with the printing screen frame to accurately align the printing screen frame over the image platform.
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