| abstract |
(57) [Summary] [PROBLEMS] To provide an on-demand type ink jet printer in which there is no risk of nozzle clogging and maintenance is almost unnecessary. [Structure] A liquid chamber 2 filled with a carrier liquid 7, and inkjet driving means 3 and 4 provided in the liquid chamber 2. And a nozzle 14 communicating with the liquid chamber 2, and the nozzle 14 And a mixing section 14 for mixing the ink 9 with the carrier liquid 7 provided in the vicinity of. Then, the ink 9 is mixed with the carrier liquid 7 in the liquid chamber 2 in the mixing section 14, and this is pressurized by the inkjet driving means 3 and 4 and ejected from the nozzle 14. Since the carrier liquid 7 is always filled in the nozzle 14, the nozzle 14 is not clogged. |