Liquid ejecting apparatus

摘要

A liquid ejecting apparatus having a storage portion (20) for storing a treatment liquid, a slit-shaped opening portion (41) for ejecting the treatment liquid, and a connecting passage (42) that has a slit-shaped cross-section and connects the storage portion (20) to the slit-shaped opening portion (41) includes: a valve body portion (50) that is provided in the storage portion (20) to cover the connecting passage (42), and forms a gap (22) together with a lower wall (43) of the storage portion (20) so that the treatment liquid is caused to flow into the connecting passage (42) through the gap (22); a first curved surface portion (44a) that smoothly connects a surface of the lower wall (43) of the storage portion (20) to an inner wall surface (42a) of the connecting passage (42); and a second curved surface portion (51a) that is provided on the valve body portion (50) so as to project to an identical side to the first curved surface portion (44a). With this constitution, air bubbles can be prevented from intermixing with the treatment liquid ejected from the slit-shaped opening portion (41).

主权项

1. A liquid ejecting apparatus comprising:
a storage portion having a storage space for storing a liquid; a slit-shaped opening for ejecting the liquid; a connecting passage connecting the storage space to the slit-shaped opening, the connecting passage having a slit-shaped cross section; a flow varying member provided in the storage space to cover a flow passage cross-section of the connecting passage, the flow varying member forming a gap together with an inner wall of the storage portion so as to allow the liquid to flow into the connecting passage through the gap; and a first curved surface portion having a convex surface that smoothly connects an inner wall surface of the storage portion to an inner wall surface of the connecting passage, wherein the flow varying member includes a second curved surface portion facing the first curved surface portion, the second curved surface portion having a concave surface extending along the convex surface of the first curved surface portion.