| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a small ink supply device and a printing device provided therewith. <P>SOLUTION: The ink supply device 1 of a first embodiment includes a variable capacity pressure chamber 3 at least a portion of which is a bellows. A first valve 5 provided at an ink supply pathway seals off the pathway when the capacity of the ink chamber 3 exceeds a predetermined value, and an opening/closing member 5 opens the pathway when the capacity is smaller than the predetermined value, whereby the pressure chamber 3 is kept at negative pressure with respect to atmospheric pressure. <P>COPYRIGHT: (C)2013,JPO&INPIT |
