| 摘要 |
The present invention provides an ink supply mechanism for use in an electrostatic ink jet recording apparatus having a stable recording quality by maintaining a predetermined amount and a predetermined pressure of ink in the discharge section. The ink supply mechanism includes: a printing head 11 having an ink discharge section; an ink tank 10; an ink flow-in pipe path 30 provided between the printing head and the ink tank, and having a flow-in pump for supplying ink from the ink tank to the printing head; and an ink flow-out pipe path 31 having a flow-out pump for recovering the ink from the printing head to the ink tank.
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