| 摘要 |
PROBLEM TO BE SOLVED: To realize simplification and miniaturization of a structure and smoothly transfer printing papers by utilizing a slack side of a transfer belt for transferring printing papers. SOLUTION: A driving system is provided, in which a driven pulley 109 at the downstream side of the transfer belt 30 is driven in an up-down direction to rotate with a main pulley 108 at the upstream side being made a rotation center, thereby facilitating securing of an opening/shutting movement path of a head cap for opening/shutting a head face of a head cartridge 8. A pinch roller 29 is adapted to suppress the behavior by slack on an upper path 30a which is the slack side of the transfer belt 30, at a near position at the upstream side of the head cartridge 8.
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