There are provided a head ejecting a liquid, a retaining section retaining the liquid, a degassing section with a degassing unit, a first supply flow path flowing the liquid from the retaining section to the degassing section, and a second supply flow path flowing the liquid degassed in the degassing section to the head. The degassing section further includes a degassing flow path having the degassing unit to flow the liquid while reducing pressure, a bypass flow path flowing the liquid without reducing the pressure, a branching section dividing the liquid flowing in the first supply flow path into the degassing flow path and the bypass flow path, and a joining section joining the liquid flowing in the degassing flow path and the liquid flowing in the bypass flow path to flow in the second supply flow path.

There are provided a head ejecting a liquid, a retaining section retaining the liquid, a degassing section with a degassing unit, a first supply flow path flowing the liquid from the retaining section to the degassing section, and a second supply flow path flowing the liquid degassed in the degassing section to the head. The degassing section further includes a degassing flow path having the degassing unit to flow the liquid while reducing pressure, a bypass flow path flowing the liquid without reducing the pressure, a branching section dividing the liquid flowing in the first supply flow path into the degassing flow path and the bypass flow path, and a joining section joining the liquid flowing in the degassing flow path and the liquid flowing in the bypass flow path to flow in the second supply flow path.

The application describes an ink delivery system for an inkjet printer. The system includes a first ink tank operative to supply ink to at least one inkjet printhead and a second ink tank operative to receive ink flown through at least one printhead and not used by at least one printhead. The ink for printing is drawn by low pressure from a first tank through the printhead to a second ink tank. Each of the ink tanks includes a cylindrical tubular segment and a segment with a frustoconical inner section.

A mixer system for use with a non-contact liquid printer comprises: a printing liquid reservoir (103) and an expansion volume (105); and an aspirator element (111; 311; 411), configured to reduce the pressure in the expansion volume (105), thereby to displace printing liquid (L) from the reservoir (103) to the expansion volume (105), and restore the pressure in the expansion volume (105), thereby to return the printing liquid (L) to the reservoir (103) so as to mix the printing liquid (L) therein.

A mixer system for use with a non-contact liquid printer comprises: a printing liquid reservoir (103) and an expansion volume (105); and an aspirator element (111; 311; 411), configured to reduce the pressure in the expansion volume (105), thereby to displace printing liquid (L) from the reservoir (103) to the expansion volume (105), and restore the pressure in the expansion volume (105), thereby to return the printing liquid (L) to the reservoir (103) so as to mix the printing liquid (L) therein.

A liquid ejecting apparatus includes: an ejecting portion configured to be able to eject a liquid onto a medium; a supply flow path configured to be able to supply the liquid to the ejecting portion; a liquid storage unit coupled to the supply flow path and configured to be able to store the liquid, the liquid storage unit being a unit in which an air-liquid interface where the liquid and air are in contact is formed; a first filter provided lower than the air-liquid interface and configured to separate the supply flow path and the liquid storage unit; an adjustment mechanism configured to lift a position of the air-liquid interface in the liquid storage unit; and a control unit configured to control the adjustment mechanism.

A liquid ejecting apparatus includes: an ejecting portion configured to be able to eject a liquid onto a medium; a supply flow path configured to be able to supply the liquid to the ejecting portion; a liquid storage unit coupled to the supply flow path and configured to be able to store the liquid, the liquid storage unit being a unit in which an air-liquid interface where the liquid and air are in contact is formed; a first filter provided lower than the air-liquid interface and configured to separate the supply flow path and the liquid storage unit; an adjustment mechanism configured to lift a position of the air-liquid interface in the liquid storage unit; and a control unit configured to control the adjustment mechanism.

In some examples, a controller is to receive sensor data from a sensor associated with a fluid delivery system that delivers fluid from a fluid reservoir to a fluid conduit, determine, based on the sensor data, presence or integrity of a gas purger that is to be fluidically coupled to the fluid conduit, and issue an alert to indicate a gas purger anomaly condition based on the determining.

In some examples, a controller is to receive sensor data from a sensor associated with a fluid delivery system that delivers fluid from a fluid reservoir to a fluid conduit, determine, based on the sensor data, presence or integrity of a gas purger that is to be fluidically coupled to the fluid conduit, and issue an alert to indicate a gas purger anomaly condition based on the determining.

An inkjet printhead including: an elongate fluid manifold having a base comprising a plurality of fluid delivery compartments, each compartment having a fluid outlet and a bubble-venting cavity; and one or more printhead chips attached to the base, each printhead chip receiving printing fluid from one or more fluid outlets. Each fluid outlet is aligned with a respective printhead chip and each bubble-venting cavity is offset from the respective printhead chip.