A micro-valve includes an orifice plate having a first surface, a second surface and an orifice extending from the first surface to the second surface. An actuating beam is disposed in spaced relation to the orifice plate. The actuating beam includes a base portion and a cantilevered portion. The base portion is separated from the orifice plate by a predetermined distance. The cantilevered portion extends from the base portion such that an overlapping portion thereof overlaps the orifice. The actuating beam is movable between a closed position and an open position. The micro-valve also includes a sealing structure including a sealing member disposed at the overlapping portion of the cantilevered portion. When the actuating beam is in the closed position, the cantilevered portion is positioned such that the sealing structure seals the orifice so as to close the micro-valve.

A damper for a continuous ink jet printer, comprising a fluid receiving chamber (6), comprising at least a lateral wall (22), a fluid inlet (11), and a fluid outlet (12), and at least one membrane (14), the membrane being in a material having a Young modulus between 0.5 MPa and 1000 MPa, the membrane being deformed under the influence of a pressure variation in the first portion.

A switching mechanism includes a first rotating body that performs forward rotation and reverse rotation by receiving a driving force transmitted from a driving source; and a second rotating body having convex portions provided on an outer circumference at intervals. The first rotating body has an engagement portion configured to move along the outer circumference of the second rotating body. When the first rotating body rotates in a forward direction, engagement of the engagement portion with the convex portion causes rotation of the second rotating body in the forward direction together with the first rotating body. When the first rotating body rotates in a reverse direction, the engagement portion moves along the outer circumference of the second rotating body so that the second rotating body does not rotate in the reverse direction. A first interval, which is at least one of the intervals, is larger than other intervals.

Disclosed are example purge valve assemblies for a printing system and related methods. In an example, the purge valve assembly includes a valve body to couple to a carriage of the printing system. In addition, the purge valve assembly includes an actuator, an arm, and a diaphragm coupled to the arm and the valve body. The purge valve assembly is to transition between: a first position in which the actuator is disposed at an initial position and the diaphragm is extended outward from the valve body; and second position in which the actuator is translated along an axis from the initial position to slidingly engage with the arm to rotate the arm and depress the diaphragm toward the valve body.

A liquid ejection apparatus includes a liquid storing unit capable of storing liquid, a liquid ejection unit including an ejection port that is capable of ejecting the liquid, and a pressure control unit that receives the liquid from the liquid storing unit and allows the liquid having a pressure controlled to be within a predetermined pressure range to be supplied to the liquid ejection unit. Additionally, the liquid ejection apparatus includes a first circulation unit that supplies the liquid having the pressure controlled by the pressure control unit to the ejection port while circulating the liquid between the liquid ejection unit and the pressure control unit, and a second circulation unit that circulates the liquid between the liquid storing unit and the pressure control unit.

A liquid cartridge includes: a valve unit configured to be movable to a position to close the atmosphere communication hole and a position to open the atmosphere communication hole; and a lever configured to fix the valve unit to the position to close the atmosphere communication hole by pressing the valve unit and configured to be capable of moving the valve unit to the position to open the atmosphere communication hole by removing the pressing against the valve unit, wherein the lever is configured to remove the pressing against the valve unit by moving in a direction intersecting a direction in which the valve unit moves.

A liquid supply apparatus includes a liquid storage tank in communication with a liquid ejecting head that ejects liquid and a cartridge configured to be detachably provided to the liquid storage tank. The liquid storage tank includes an atmosphere communication portion in communication with the atmosphere and a first connecting portion that, in a state where the cartridge is attached to the liquid storage tank, enables the cartridge to be in liquid communication with the liquid storage tank. The liquid storage tank also includes a second connecting portion that, in the state where the cartridge is attached to the liquid storage tank, is connected to the cartridge so as to be liquid-tight with the cartridge and enables the cartridge to be in gaseous communication with the atmosphere communication portion.

An object of the present disclosure is to reduce liquid leakage resulting from detachment of a cartridge. One embodiment of the present invention is a printing apparatus including: a cartridge having a casing for storing liquid; and an attachment unit configured to attach the cartridge, and the cartridge has a hollow needle that connects with the attachment unit.

The present invention relates to a system for regulating ink injector supply in a print head, of the type installed in printing equipment and that use ink injectors which, by the installation of a measurement assembly parallel to the head and configured to emulate said print head, allows making an ink pressure measurement that does not require placing the ink system next to the head and prevents the use of pressure sensors with a wide range, using a single sensor without having to known the elevation of the head with respect to the system, nor the density of the liquid, or even the variation of viscosity with temperature.

Disclosed is a liquid storage container comprising: a liquid reservoir reserving a liquid; an air communication passage for communicating the liquid reservoir with an atmosphere; a partition wall separating an inside and outside of the liquid reservoir; a through hole penetrating the partition wall in a first direction; a movable support member capable of moving in the through hole in the first direction; a first seal member disposed in the liquid reservoir and fixed to the movable support member; and a biasing member biasing the movable support member to locate the first seal member at a closing position to close the air communication passage, wherein the movable support member has receiving part receiving an external force to move the first seal member from the closing position so that the inside of the liquid reservoir part communicates with the outside of the liquid reservoir via the air communication passage.