Patent ID: 11912023
Assignee: GOSANTECH CO., LTD.
Field: Textile and paper machines (Mechanical engineering)
Classification: CPC B | IPC B

Claim 0:
1. An inkjet printer comprising:
an inkjet head comprising a plurality of nozzles configured to discharge ink;
an ink reservoir configured to store ink supplied to the inkjet head;
a supply channel configured to supply the ink in the ink reservoir to the inkjet head;
a pressure control device connected to the ink reservoir through a pressure control tube and configured to maintain meniscus of the ink injected into the inkjet head; and
an ink temperature control unit configured to control temperature of the ink discharged from the inkjet head,
wherein the ink temperature control unit comprises a vortex tube configured to be supplied with compressed air and discharge a low-temperature air current and a high-temperature air current, a mixing part configured to mix the low-temperature air current and the high-temperature air current that are discharged from the vortex tube and to generate a heat transfer medium, a controller configured to adjust a ratio of the low-temperature air current to the high-temperature air current that are mixed in the mixing part and to control temperature of the heat transfer medium, and a heat transfer medium supply line configured to supply the heat transfer medium generated in the mixing part to the inkjet head, and
the heat transfer medium supplied to the inkjet head through the heat transfer medium supply line is configured to change the temperature of the ink discharged from the inkjet head by a heat exchange structure.