Abstract: A pressure bag for in a fluid cartridge having an opening in open connection with a channel in a wall of the fluid cartridge.

Abstract: A fluid-dispensing head includes a plenum configured to house fluid; at least one dispensing head orifice in fluid communication with the ink plenum; and at least one heating element configured to heat fluid in the head such that gas bubbles disposed within the fluid increase in surface area.

Abstract: A fluid dispensing apparatus including a fluid ejector including a fluid reservoir having fluid, and configured to eject the fluid, a vacuum pump configured to create negative pressure in an activation mode and to create approximately no pressure in a deactivation mode, a meniscus pressure regulator configured to regulate the negative pressure received from the vacuum pump, a leaking member configured to reduce the negative pressure received from the vacuum pump towards or equal to atmospheric pressure in response to the vacuum pump being placed in the deactivation mode, and a back pressure regulator having a pressure reference port to receive the reduced negative pressure from the leaking member and the regulated negative pressure from the meniscus pressure regulator, the back pressure regulator configured to maintain a non-retraction negative pressure value to position a fluid meniscus in a non-retracted state and a retraction negative pressure value to position the fluid meniscus in a retracted state.

Abstract: A pressure bag for in a fluid cartridge having an opening in open connection with a channel in a wall of the fluid cartridge.

Abstract: In one embodiment, a latch for a liquid dispensing component includes: a first part for holding a liquid dispensing component in a seated position in a holder, the first part movable between an open position in which the component may be installed in or removed from the holder and a closed position in which the component is held in the seated position in the holder; and a second part for connecting the component to a liquid supply port, the second part movable, while the first part is in the closed position, between a disconnected position in which the component is not connected to the liquid supply port and a connected position in which the component is connected to the liquid supply port.

Abstract: In one embodiment, a latch for a liquid dispensing component includes: a first part for holding a liquid dispensing component in a seated position in a holder, the first part movable between an open position in which the component may be installed in or removed from the holder and a closed position in which the component is held in the seated position in the holder; and a second part for connecting the component to a liquid supply port, the second part movable, while the first part is in the closed position, between a disconnected position in which the component is not connected to the liquid supply port and a connected position in which the component is connected to the liquid supply port.

Abstract: In one embodiment, a method for installing an ink cartridge includes: seating the ink cartridge in the carriage; holding the ink cartridge in the seated position; and while holding the ink cartridge in the seated position, connecting the ink cartridge to an ink supply port.

Abstract: A method of priming a fluid-dispensing head includes heating a fluid in fluid pathways of the fluid-dispensing head prior to fluid-dispensing operations to increase a surface area of gas bubbles in the fluid pathways. A fluid-dispensing head includes a plenum configured to house fluid; at least one dispensing head orifice in fluid communication with the ink plenum; and at least one heating element configured to heat fluid in the head such that gas bubbles disposed within the fluid increase in surface area.

Abstract: An ink supply for a push-primed inkjet printer including an ink reservoir, a housing, and a pair of valves. The housing may enclose the ink reservoir and define an opening that provides fluid communication between the ink reservoir and outside the housing. The pair of valves may be coupled to the housing, arranged in series, and configured to control the fluid communication.

Abstract: An inkjet printer including a printhead assembly and an ink supply coupled to the printhead assembly for supplying ink thereto. The printhead assembly may include a compliant chamber and a printhead arranged to receive ink from the compliant chamber. The ink supply may be configured to expand the compliant chamber and then to create a backpressure that contracts the compliant chamber and induces reverse flow from the printhead assembly to the ink supply.

Abstract: A free flow fluid delivery system, such as, for example in a printing device, includes a fluid supply container configured to hold a printing fluid, a separating container coupled to the fluid supply container and configured to receive a froth made of gas and the printing fluid and output the printing fluid in the froth to the fluid supply container and output the gas in the froth to atmosphere. A pump is coupled to the separating container and configured to urge the froth into the separating container, and a valve is coupled to the fluid supply container and configurable selectively to allow printing fluid to flow out of the fluid supply container.

Abstract: Methods are provided for use in a printing device. One method includes allowing a printing fluid to flow from a fluid supply container to a fluid reservoir of a printhead assembly, then urging material from at least the fluid reservoir and the fluid supply container to a separating container, then preventing any further amount of the printing fluid from flowing from the fluid supply container while continuing to urge the material from at least the fluid reservoir to the separating container, then stopping the urging of the material from at least the fluid reservoir to the separating container, and then allowing the printing fluid to flow from the fluid supply container to the fluid reservoir.

Abstract: A fluid reservoir for use in a printing device includes a housing that, at least partially, forms at least one chamber therein. The chamber is configured to hold a fluid. A bubble port leads through housing into a first region of chamber and fluidically couples chamber to atmospheric gas external to housing. A bubble director arranged within chamber is configured to direct at least one bubble of gas from first region to a second region of chamber. The bubble is formed within fluid within first region upon gas entering chamber through bubble port.

Abstract: An ink delivery system having at least one off-axis ink supply container and an on-axis printhead assembly. The printhead assembly includes at least one reservoir and a corresponding standpipe separated by a particle filter. At least one tube connects the off-axis ink supply container to the printhead assembly. A first valve is configured to selectively open a flow path between the tube and the reservoir. A second valve is configured to selectively open a flow path between the standpipe and the tube. A method for controlling effects of accumulated air in a printhead assembly. The printhead assembly has at least one ink reservoir and one standpipe separated by a particle filter. The printhead assembly is fluidicly connected to at least one off-axis ink supply container by at least one tube. The method includes drawing air from said printhead assembly through said standpipe into the tube.