| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide an inkjet recording apparatus that includes a reciprocating pump on the way of an ink supply passage, and can decrease occurrence of bubbles while efficiently performing replenished operation to supply ink to the reciprocating pump. <P>SOLUTION: The inkjet recording apparatus includes: a reciprocating pump 230 that is provided on the way of the ink supply passage 101 and replenishes the ink accommodated in the ink tank 23 to the tank 260 in the pump by decompressing inside the tank 260 in the pump, while supplying the ink accommodated in the tank 260 in the pump to a recording head 22 by pressurizing inside the tank 260 in the pump that temporarily accommodate the ink to be accommodated in the ink tank 23. The ink supply passage 101 includes: an outflow side feeding channel 103 that supplies the ink to the recording head 22 from a reciprocating pump 230 and an inner diameter of a pipe conduit is a first inner diameter d1; and an inflow side feeding channel 102 that supplies the ink from the ink tank 23 to the reciprocating pump 230 and the inner diameter of the pipe conduit is a second inner diameter d2 that is larger than the first inner diameter d1. <P>COPYRIGHT: (C)2013,JPO&INPIT</p> |
