| 摘要 |
PROBLEM TO BE SOLVED: To provide a liquid ejection device that can secure sufficient sealability in a connection portion of liquid flow passages while reducing force required when the liquid flow passages are connected.SOLUTION: A liquid ejection device 12 comprises: a liquid ejection head 33; a mounting mechanism 37 having a downstream side liquid flow passage 48; bodies to be mounted 36 each of which has an upstream side liquid flow passage 95 connected to the downstream side liquid flow passage 48 in a communicable manner therewith at the time of mounting to the mounting mechanism 37 and an annular protrusion portion 58 and is mounted to the mounting mechanism 37 by being rotated; a carriage 32 that is mounted with the liquid ejection head 33 and the mounting mechanism 37 and is moved inside a movement area; liquid supply tubes 90 for connecting between liquid storage portions disposed outside the movement area and the upstream side liquid flow passage 95; and elastic members 53 each of which has an annular shape with an outer diameter larger than an outer diameter of the annular protrusion 58 and an inner diameter smaller than an inner diameter of the annular protrusion 58, is disposed so as to surround a liquid introduction port 49 and has a contact portion with a width in a front-back direction Y greater than a width in a main scanning direction X. |
