A liquid cartridge capable of being attached to or detached from a predetermined apparatus includes: a container which stores a liquid; a supply port which supplies the predetermined apparatus with the liquid stored in the container; an air communication hole which allows the container to communicate with the atmosphere; and a valve mechanism capable of switching between opening and blocking of the air communication hole. The valve mechanism includes a valve element which can be brought into intimate contact with the air communication hole to block the air communication hole, and a lever which moves, while rotating, between a first position in which the valve element is brought into intimate contact with the air communication hole and a second position in which the valve element is separated from the air communication hole in response to attaching/detaching of the liquid cartridge to/from the predetermined apparatus.

An ink refill container includes a container main body including an ink storage chamber, an ink outlet-forming portion provided on an end portion of the container main body forming an ink outlet that allows the ink to flow out from the ink storage chamber, and a valve provided in the ink outlet-forming portion configured to openably seal the ink outlet, in which the ink outlet-forming portion includes a positioning portion on an outer side of the ink outlet-forming portion. in which the positioning portion is closer to the container main body than the valve is to the container main body in a central axis direction of the ink outlet, and in which the positioning portion partially abuts against an ink tank when the valve is opened for refilling the ink to the ink tank, to thereby position the valve relative to the ink tank.

Provided is a storage device including a container that includes an accommodation chamber accommodating fluid or powder, a flexible film that is bonded to the container and covers an opening portion of the accommodation chamber, and a tank holder to which the container having the film bonded thereto is fixed by a screw, in which the screw penetrates the film and fixes the container to the tank holder, and a part of a bonded portion between the film and the container surrounds a portion of the film through which the screw penetrates.

A device outputs a first low voltage to a first terminal at a first timing in a period in which a voltage input to a second terminal is a high voltage. After outputting the first low voltage, the device outputs a second high voltage to the first terminal at a second timing in a period in which the voltage input to the second terminal is a low voltage. After outputting the second high voltage, the device outputs a second low voltage to the first terminal at a third timing in a period in which the voltage input to the second terminal is a high voltage.

A device includes a fluid channel connecting a pair of ports and an attachment feature to attach the device at a dummy cartridge; wherein the pair of ports is dimensioned to mate with fluid feed ports of a printer when the device is attached to the dummy cartridge and the dummy cartridge is inserted in the printer.

To provide an aqueous ink having excellent storage stability and capable of recording an image having excellent abrasion resistance and the like. An aqueous ink for ink jet containing a resin particle, in which the resin particle is formed of a polyester resin having a carboxylic acid group, and an amount of carboxylic acid groups present on particle surfaces of the resin particle is 0.3 times or more to 0.8 times or less in terms of molar ratio with respect to all of the carboxylic acid groups in the polyester resin having the carboxylic acid group.

In an image-recording device, a cartridge has a first chamber and an outlet. A mount body includes a tank, first and second sensors. The tank has an inlet, and a second chamber. The liquid in the first chamber flows into the second chamber via the outlet and the inlet. The first sensor outputs a first signal when a level of the liquid in the second chamber is higher than a first position, and outputs a second signal when the level is lower than the first position. The second sensor outputs a third signal when the level is higher than a second position higher than the first position, and outputs the fourth signal when the level is lower than the second position. A controller controls a notification device to issue a notification if a condition based on the first and second signals is satisfied.

A cartridge that is releasably connectable with a housing of a microfluidic delivery device is provided. The cartridge has a reservoir for containing a fluid composition and a microfluidic die in fluid communication with the reservoir. The microfluidic die is configured to dispense substantially all of the fluid composition in a horizontal direction or downward direction relative to horizontal. The cartridge also includes an air flow channel disposed below the reservoir. The air flow channel extends from a fan to an air outlet. The air flow channel comprises a first region disposed adjacent to a fan, a second region disposed adjacent to the air outlet, and a third region joining the first and second regions. At least the second region is angled upward to the air outlet, relative to horizontal.

Management system for the ink in a printing machine, comprising: one or more tanks (2), each of which is equipped with hydraulic connections (21) for quick coupling and an inner layer of insulation; a docking station (3), arranged to be placed in a printing machine, which comprises hydraulic connections (31) for quick coupling, intended to be connected to the hydraulic connections (21) of one or more tanks (2); motor means (4), associated with the docking station (3) and arranged to transfer a tank (2) between a standby position and an operating position within the docking station, and to produce the coupling of the hydraulic connections (21,31).

A single pass inkjet printer that utilizes a modular printing system with one or more self-contained printing modules, where each printing module is easy to remove and replace from a large printing machine, thus resulting in an overall system that is easy to service and maintain. Each module is a self-contained printer including an ink supply, printhead drive electronics, and printhead assembly in order to provide one color or fluid of inkjet printing capability. Each module includes a precise three-point compliant self-aligning mount system to obtain accurate printhead positioning, and a unique integrated printhead tending system that includes a compact movable vacuum knife for cleaning the printheads, and a printhead capping station for sealing and protecting the printheads from the ambient environment when not in use.