| 摘要 |
PROBLEM TO BE SOLVED: To provide a head and a liquid jet device which achieve high-quality liquid jetting by reducing a difference of pressure losses between nozzle arrays for jetting a plurality of liquids, and can reduce a discharge amount of the liquid during cleaning.SOLUTION: Nozzle arrays 21a for discharging ink of a same color are arranged in a position symmetrical around a reference line C extending in a first direction X. A liquid flow channel 500 includes an upstream flow channel 510 which is on an upstream side than a filter 245, and a downstream flow channel 520 which is formed for each nozzle array 21a on a downstream side than the filter 245. The upstream flow channel 510 includes a first horizontal flow channel 531 arranged between the first flow channel member 210 and a second flow channel member 220. The downstream flow channel 520 includes a second horizontal flow channel 532 arranged between a filter holding member 240 and a third flow channel member 230. The first horizontal flow channel 531 is branched and communicates with the respective downstream flow channel 520. The second horizontal flow channel 532 is shorter than the first horizontal flow channel 531.SELECTED DRAWING: Figure 10 |
