A container for liquid replenishment for replenishing liquid in a liquid ejection apparatus comprises a container body capable of containing the liquid, a spout fitted to the container body and having a front end section including a front end surface and a liquid outlet for allowing the liquid to flow out therefrom, a lid member removably attached to the spout to cover the spout and a liquid absorber arranged on the spout. The liquid outlet is open in the front end surface of the spout and the liquid absorber is arranged at least on an area of the front end surface not occupied by the liquid outlet.

In a control device, a controller sets an order condition using a plurality of sets of timing information and a plurality of index values stored in a memory. The plurality of index values is acquired from a recording device under a condition where a first cartridge is mounted in the recording device. The order condition requires that one of a latest index value and a current timing have reached corresponding one of a reference index value and a reference timing, and is set so that a second cartridge is delivered to a predetermined destination at a first timing at which the first cartridge is expected to be out of a printing agent while a tank of the recording device is expected to still accommodate the printing agent. The controller transmits an order command instructing to order the second cartridge to a relevant device after the order condition is satisfied.

An ink refill container configured to refill an ink tank with ink and an ink refill system. An ink refill container includes a container main body having an ink chamber; an ink outlet forming portion provided at an edge of the container main body including an ink outlet configured to allow ink to flow out from the ink chamber; a valve provided in ink outlet forming portion and configured to seal the ink outlet in an openable and closable manner; and a positioning structure configured to abut on part of the ink tank and position the valve relative to ink tank when valve is opened. The positioning structure has a positioning surface located on an opposite side to a container main body side where the container main body is located, across the valve and extends in a direction intersecting with a center axis of the ink outlet.

In some examples an imaging device can include a fill port to receive a colorant container including an alignment circuit, a controller including a processing resource and memory resource including a non-transitory computer-readable instructions executable by the processing resource to detect a presence of a colorant container in a fill port of an imaging device, responsive to detection of the colorant container in the fill port, detect if the colorant container is properly inserted in the fill port, and cause a fill process to initiate responsive to detection that the colorant container is properly inserted.

A liquid storage container includes a storage chamber that stores a liquid, a filter chamber that is provided with a filter and receives the liquid from the storage chamber to filter the liquid by the filter, and a partition wall that separates the storage chamber and the filter chamber. The partition wall is provided with a communication hole structure that allows the storage chamber and the filter chamber to communicate with each other. A shape of one or more openings of the communication hole structure in the storage chamber is a shape in which a distance from a center of gravity of an entirety of the one or more openings to the closest point in a contour defining the one or more openings is smaller than a radius of a circle having the same area as an area of the entirety of the one or more openings.

A fluid supply device includes a variable fluid volume to contain a supply of fluid and a variable gas volume to receive pressurized gas to pressurize the supply of fluid. A method of monitoring the fluid supply device may include controlling a gas pressure of the pressurized gas to feed the fluid from the fluid volume, the gas pressure varying in a plurality of pressurization cycles; monitoring a parameter of the pressurization cycles; and determining a change in fill state of the fluid volume as a function of the monitored parameter.

A tank includes: a tank body defining a storage chamber; a recessed portion provided at the tank body; a slider positioned in the recessed portion; a fitting portion provided at the slider; and a sealing member. The recessed portion has an injection opening in communication with the storage chamber, and a connection opening through which a liquid container is connectable. The slider includes a nozzle extending toward the connection opening in an extending direction and having a communication opening communicable with the injection opening. The slider is movable toward and away from the connection opening in the extending direction while rotating relative to the recessed portion. The fitting portion can be fitted with the liquid container. The sealing member can provide a liquid tight sealing to a gap between the slider and the recessed portion, and allow liquid flow between the communication opening and the injection opening.

A liquid replenishing container configured to replenish recording liquid to a liquid storage container having a receiving portion of the recording liquid, includes a holding portion that holds recording liquid to be replenished to the liquid storage container; and an injecting portion that has an opening to discharge the recording liquid in the holding portion, and that is inserted into the receiving portion of the liquid storage container, wherein the opening opens so as to face an inner wall of the receiving portion.

An ink jet recording apparatus includes an ink composition, an ink encasement in which the ink composition is encased, a recording head that ejects the ink composition, and a carriage configured to move the recording head back and forth. The carriage carries the ink encasement, with the ink encasement integrated with the carriage. The ink encasement has an ink fill port that opens and shuts as a port through which the ink composition is loaded. The ink composition contains a disperse colorant, with the volume-average particle diameter of the disperse colorant being 110.0 nm or more and 200.0 nm or less, and also contains at least one organic solvent with an SP of 9 or more, with the percentage thereof being 10.0% by mass or more.

A method of recirculating printing fluid that includes with a first pump upstream of an internal reservoir, pumping printing fluid into the reservoir and with a second pump downstream of the internal reservoir and upstream of a pen assembly, pumping printing fluid from the reservoir.