Provided is an ink including water, and an organic solvent, wherein a dried product of the ink has an endothermic peak temperature Tm of 22° C. or higher but 74° C. or lower as measured by differential scanning calorimetry, the differential scanning calorimetry includes first heating, cooling, and second heating, where the first heating is heating the dried product of the ink from −60° C. to 140° C. at a heating rate of 10° C./min, the cooling, which is performed after the first heating, is cooling a heated product obtained in the first heating from 140° C. to −60° C. at a cooling rate of −10° C./min, and the second heating, which is performed after the cooling, is heating a cooled product obtained in the cooling from −60° C. to 140° C. at a heating rate of 10° C./min, and the endothermic peak temperature Tm is an endothermic peak temperature in the second heating.

A leak mitigation device includes a planar portion and a tail portion. The planar portion has a first width. The tail portion has a proximal end and a distal end. The proximal end is attached to the planar portion and has a second width less than the first width. The planar portion and the tail portion comprise an absorbent material.

An aerosol jet printhead comprising an in-line static mixer can mix multiple aerosol streams for co-deposition from a single nozzle. A printhead was designed, fabricated, and tested, demonstrating in-plane functionally graded films. The inline mixing printhead can be used with a compact aerosol jet deposition system.

An aerosol jet printhead comprising an in-line static mixer can mix multiple aerosol streams for co-deposition from a single nozzle. A printhead was designed, fabricated, and tested, demonstrating in-plane functionally graded films. The inline mixing printhead can be used with a compact aerosol jet deposition system.

A cartridge for a printing system comprises a receptacle to receive waste printing material from the printing system, a floater to change its position based on a varying filling level of the waste printing material in the receptacle, and a flag mechanically coupled to the floater, wherein a position of the flag depends on the position of the floater and indicates, outside of the receptacle, the filling level.

A printing fluid collector is described. In one example, the collector comprises a conveying mechanism for collecting printing fluid ejected from a printing fluid dispenser, and a connecting means for connecting the conveying mechanism to a printing system in an orientation such that the conveying mechanism is to collect printing fluid ejected from the printing fluid dispenser and convey the printing fluid in a direction which is substantially perpendicular to a direction of movement of a print medium along a print medium path.

A waste liquid container is detachably attached to an attachment section that is, in a use state, positioned on a down-direction side of a discharge section that discharges waste liquid from a liquid ejecting head, and the waste liquid container includes: a storage section having an inlet section that is positioned on an up-direction side and introduces the waste liquid which flows down from the discharge section; an absorbing member that is accommodated in the storage section, forms the inlet section, and absorbs the waste liquid introduced to the inlet section; and an accumulation region that communicates with the inlet section inside the storage section, is positioned on the down-direction side of the inlet section, is formed to have an area, when viewed in plan view from a top, larger than an area of the inlet section, and is configured to accumulate the waste liquid in a bubble form.

In an example of the disclosure, a printhead is caused to spit a liquid into a main cavity of a container. The container includes an overflow pocket for collecting liquid that has overflown from the main cavity. A sensor is caused to detect whether liquid is present in the overflow pocket. Responsive to sensor detection that liquid is present in the overflow pocket, a warning or instruction message is caused to be sent for user consumption.

Disclosed herein are apparatus and methods for collection printing liquid e.g. ink. A printing liquid collection apparatus comprises a collection tray comprising a printing liquid droplet collection surface to capture printing liquid droplets produced during application of a printing liquid to a porous substrate; and a printing liquid removal element to receive the captured printing liquid from the collection tray and transport the captured printing liquid to a waste printing liquid container.

The image formation device includes a tank, a hollow member, and a sensor. The tank is configured to store ink. The hollow member is disposed inside the tank, and extends in an up-down direction. The sensor is disposed outside the tank and above the hollow member, and is configured to detect a pressure inside the hollow member.