| CPC B41J 11/0022 (2021.01) [B41J 11/004 (2013.01); B41J 11/0055 (2013.01); B41J 11/02 (2013.01); B41J 11/08 (2013.01); F26B 13/108 (2013.01); F26B 21/004 (2013.01)] | 17 Claims |
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1. A drying apparatus comprising:
a first transfer part including a plurality of first upper nozzles arranged in a horizontal direction above an elongated strip-shaped printing medium having a printing surface on which ink is adhered and a non-printing surface on the reverse side from the printing surface, and a plurality of first lower nozzles arranged in the horizontal direction below the printing medium, the first transfer part injecting gas onto the printing medium from the first upper nozzles and injecting gas onto the printing medium from the first lower nozzles, and transferring the printing medium toward one side of the horizontal direction with the printing surface pointed downward;
a first non-contact support member including a first support peripheral surface to face the printing surface of the printing medium having been transferred from the first transfer part toward the one side, and a plurality of first injection holes opening at the first support peripheral surface, the first non-contact support member changing a traveling direction of the printing medium from a direction toward the one side of the horizontal direction to a downward direction while supporting the printing surface of the printing medium in a non-contact manner by injecting gas from the first injection holes onto the printing surface of the printing medium;
a second non-contact support member including a second support peripheral surface to face the printing surface of the printing medium having been transferred downward from the first non-contact support member, and a plurality of second injection holes opening at the second support peripheral surface, the second non-contact support member changing a traveling direction of the printing medium from the downward direction to a direction toward the other side of the horizontal direction on the reverse side from the one side while supporting the printing surface of the printing medium in a non-contact manner by injecting gas from the second injection holes onto the printing surface of the printing medium;
a second transfer part including a plurality of second upper nozzles arranged in the horizontal direction above the printing medium having been transferred toward the other side of the horizontal direction from the second non-contact support member, and a plurality of second lower nozzles arranged in the horizontal direction below the printing medium, the second transfer part injecting gas onto the printing medium from the second upper nozzles and injecting gas onto the printing medium from the second lower nozzles, and transferring the printing medium toward the other side of the horizontal direction with the printing surface pointed upward;
two first anti-drop members provided at corresponding both ends of the first non-contact support member in a width direction of the printing medium; and
two second anti-drop members provided at corresponding both ends of the second non-contact support member in the width direction of the printing medium, wherein
each of the first anti-drop members includes a first anti-drop peripheral surface adjoining the first support peripheral surface of the first non-contact support member in the width direction,
each of the second anti-drop members includes a second anti-drop peripheral surface adjoining the second support peripheral surface of the second non-contact support member in the width direction,
when the printing medium travels obliquely to be deviated from the first support peripheral surface to the first anti-drop peripheral surface, the gas injected from the first injection holes at the first support peripheral surface flows through a clearance between the first support peripheral surface and the printing surface of the printing medium facing the first support peripheral surface toward the first anti-drop peripheral surface to form a clearance between the first anti-drop peripheral surface and the printing surface of the printing medium facing the first anti-drop peripheral surface, and
when the printing medium travels obliquely to be deviated from the second support peripheral surface to the second anti-drop peripheral surface, the gas injected from the second injection holes at the second support peripheral surface flows through a clearance between the second support peripheral surface and the printing surface of the printing medium facing the second support peripheral surface toward the second anti-drop peripheral surface to form a clearance between the second anti-drop peripheral surface and the printing surface of the printing medium facing the second anti-drop peripheral surface.
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