| 摘要 |
PURPOSE:To extremely reduce the radius of curvature of contact means, to obtain a print of high quality, to allow a web to smoothly run and to eliminate the damage and contamination of it by providing the contact means substantially integrally disposed with a frame and having a specific radius of curvature, and guide rolls rotatably attached to the frame. CONSTITUTION:Contact means 32 in direct contact with a web 20 has relatively small radius of curvature which is normally selected from a range of 10-20mm. Guide rolls 52, 54 are used as preventing means for the danger that the web 20 might contact the corner of a frame. The rolls 52, 54 are rotatably supported to roll supporting members 56, 58, and rotated by the movement of the web 20. Accordingly, when a frame 40 moves, the means 32, a support 37, the rolls 52, 54, and the members 56, 58 are all moved integrally with the frame 40.
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