Liquid tank

Abstract

The present invention provides a technique for reducing the possibility of air bubbles flowing into the print head side in a liquid tank that is mounted on a movable carriage and can accommodate the liquid supplied to a print head. The liquid tank mounted on the carriage movable in a Y direction and capable of accommodating the liquid supplied to the print head includes a liquid chamber that can contain the liquid, a liquid inlet port through which the liquid can be injected into the liquid chamber, an atmospheric air introduction portion for introducing atmospheric air into the liquid chamber, a liquid outlet provided in a bottom face of the liquid chamber, and a division wall arranged in the liquid chamber. The division wall has first division walls perpendicular to the Y direction in amounted state in which the liquid tank is mounted on the carriage, and the liquid chamber includes a plurality of small liquid chambers partitioned by the first division walls, an upper communicationportion that allows the plurality of small liquid chambers to be in communication with each other in the mounted state, and a lower communication portion that is positioned below the upper communication portion in the mounted state, and allows the plurality of small liquid chambers to be in communication with each other.

Description

Technical field [0001] The present invention relates to the technology of liquid tanks. Background technique [0002] Conventionally, the following technology is known: a wall orthogonal to the reciprocating direction of the carriage (referred to as the "moving direction") is provided in the sub tank on the carriage, so that the ink level due to the reciprocating movement of the carriage is The blistering of the ink caused by the undulation is reduced (for example, Patent Document 1). [0003] [Prior Art Literature] [0004] [Patent Literature] [0005] [Patent Document 1] Japanese Patent No. 4259158 [0006] In the prior art, when ink flows from the ink chamber on the downstream side of the two ink chambers partitioned by a wall orthogonal to the direction of movement of the carriage toward the print head, the ink passes over the wall from the ink chamber on the upstream side. The upper end is supplied to the upper space of the ink chamber on the downstream side where the ink is red...

AI Technical Summary

Problems solved by technology

In addition, the above-mentioned problem is not limited to the sub-tank mounted on the bracket, but is a common problem among the liquid tanks mounted on the bracket movable in a predetermined direction.

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