Inkjet recording apparatus
An inkjet recording apparatus includes a recording portion, a transport mechanism, and a liquid holding portion. The recording portion has a recording head in which a plurality of nozzles for ejecting ink are formed. The transport mechanism is arranged to face the recording portion and transports a paper sheet along the recording portion. The liquid holding portion is provided on an upstream side of the recording portion in a transport direction of the paper sheet, and holds liquid in a state where liquid surface of the liquid faces the transport mechanism.
1. An inkjet recording apparatus comprising:
a recording portion having a recording head in which a plurality of nozzles for ejecting ink are formed;
a transport mechanism that is arranged to face the recording portion and configured to transport a paper sheet along the recording portion; and
a liquid holding portion that is provided adjacent to and on an upstream side of the recording portion in a transport direction of the paper sheet, and configured to hold liquid in a state where a liquid surface of the liquid faces the transport mechanism, wherein
the liquid holding portion includes a nozzle and is configured to hold the liquid which is different from the ink in a state where the liquid protrudes from a tip of the nozzle without being applied to the print sheet during an image forming period.
2. The inkjet recording apparatus according to claim 1 , further comprising
a liquid surface moving back/forth portion configured to move back and forth the liquid surface of the liquid held by the liquid holding portion, with respect to the transport mechanism, by increasing and decreasing pressure against the liquid in the liquid holding portion.
3. The inkjet recording apparatus according to claim 1 , wherein
the liquid holding portion is an inkjet head.
4. The inkjet recording apparatus according to claim 1 , wherein
the recording portion is a line head type.
5. The inkjet recording apparatus according to claim 1 , wherein
the liquid is water or preservation liquid.
6. The inkjet recording apparatus according to claim 1 , wherein
the liquid is transparent.
7. The inkjet recording apparatus according to claim 4 , wherein
the transport mechanism includes a transport belt and a negative pressure generating apparatus, the transport belt being configured to transport the paper sheet, and the negative pressure generating apparatus being configured to generate a negative pressure that causes the transport belt to suck the print sheet,
the recording head is a most upstream recording head of a plurality of recording heads, the most upstream recording head provided on a most upstream side of the plurality of recording heads in the transport direction, and
the liquid holding portion is provided upstream from the most upstream recording head in the transport direction.