Abstract: A print liquid supply interface structure is provided, to fluidically connect a fluid supply container to a receiving station, comprising a liquid channel having at least one liquid channel wall, the liquid channel including a liquid interface, and at least one key pen next and parallel to the needle receiving portion of the liquid channel. In another example a key pen structure is provided. In yet another example an interface structure for receiving a separate key pen is provided.

Abstract: A liquid supply, may include a bag and a box to maintain the bag therein, the box including a number of alignment structures formed along an edge of a first wall of the box to mate with a support element. A carton fold structure for a print liquid supply, the fold structure to support and hold a liquid bag including a liquid bag interface, the carton fold structure including multiple planes that, together, form a cuboid shape, each plane to form an outer wall of the carton fold structure, with edges between respective planes; a cut out in one of the edges, the cut out including: a channel extending inwards into a first plane to allow the liquid bag interface to pass through the first plane; and slots extending into the first plane between the channel and the edge associated with the first plane to align to a support element.

Abstract: A printing device interface to receive a fluid supply may include a fluid dock arranged on an external surface of a housing of the printing device, the fluid dock further arranged to receive a mechanical interface of a fluid supply wherein the arrangement of the fluid dock on the external surface of the housing enables use of a center of mass and weight of the fluid supply to maintain a mechanical, fluidic, and electrical connection with the fluid supply.

Abstract: A print liquid supply sub-assembly, the print liquid supply sub-assembly to connect to a printer to provide a print liquid to the printer may include a print liquid output to connect to a print liquid input of the printer; a first fluidic channel upstream of the print liquid output comprising a first fluidic valve to prevent the print liquid from entering a supply container upstream of the first fluidic valve; and a second fluidic channel upstream of the print liquid output fluidically coupled to the first fluidic channel comprising a second fluidic valve to selectively prevent the fluid from passing out of the supply container downstream from the second fluidic valve.

Abstract: A fluid supply component for a replaceable fluid supply may include a channel fluidically coupled to a pliable fluid supply bag; a ball housed within the channel; and a gasket to prevent movement of the ball into the fluid supply bag; wherein the valve prevents fluid from entering the fluid supply bag while the fluid supply bag imparts a negative fluidic pressure.

Abstract: A bag-in-box fluid supply may include a bag comprising a spout extending therefrom, the spout including a flange coupled to a surface of the bag and comprising a lip formed on the spout distal to the bag; a box formed around the bag to maintain the bag therein; a wedge to wedge a surface of the box between the lip and a surface of the bag; and a fluid interface to fluidically interface with the spout of the bag, the fluid interface including a fluidic channel and a collar disposed on a first end of the fluidic channel to secure the fluid interface to the spout.

Abstract: A print liquid supply apparatus or interface structure to be connected to a print system comprises a liquid channel, liquid interface and integrated circuit contact pads.

Abstract: In one embodiment a print liquid supply apparatus is provided to supply liquid to a liquid needle of a receiving station comprising a liquid container including an at least partially collapsible liquid reservoir an interface structure at a side of the container, including a liquid channel that includes a reservoir connecting portion that fluidically connects to the reservoir and a needle receiving portion to allow the liquid to flow from the reservoir to the needle; a liquid interface of the liquid channel adjacent the needle receiving portion and at a distance from the reservoir connecting portion, a front wall and/or edge adjacent the liquid interface including a push area which is disposed between the liquid interface and the container; and at least one key pen base and key pen protruding from the base in a direction parallel and opposite to the needle insertion direction; and a contact pad array next to the needle receiving liquid channel portion.

Abstract: In one example in accordance with the present disclosure, an interconnect on a print liquid supply is described. The interconnect includes a liquid interface to establish a liquid path between the print liquid supply and an ejection device in which the print liquid supply is installed. The interconnect also includes an electrical interface to establish a data transmission path between the print liquid supply and the ejection device. The interconnect also includes an external surface having a dampening element disposed thereon.

Abstract: A fluid barrier may include a collar coupled to a first end of a fluidic channel of a fluidic interface wherein the collar comprises a lip to prevent separation of the fluidic channel from a pliable fluidic container. A printing fluid supply may include an at least partially collapsible fluid bag; and a substantially rigid fluidic interface having a fluidic channel fluidically coupled to the fluid bag and a collar coupled to the fluidic channel forming a fluid barrier between the fluid bag and the fluidic interface.

Abstract: A liquid supply, may include a bag and a box to maintain the bag therein, the box including a number of alignment structures formed along an edge of a first wall of the box to mate with a support element. A carton fold structure for a print liquid supply, the fold structure to support and hold a liquid bag including a liquid bag interface, the carton fold structure including multiple planes that, together, form a cuboid shape, each plane to form an outer wall of the carton fold structure, with edges between respective planes; a cut out in one of the edges, the cut out including: a channel extending inwards into a first plane to allow the liquid bag interface to pass through the first plane; and slots extending into the first plane between the channel and the edge associated with the first plane to align to a support element.

Abstract: In one example in accordance with the present disclosure, a spout for a print liquid reservoir is described. The spout includes a sleeve having an opening through which print liquid passes. A first flange extends outward from the sleeve to affix the spout to the print liquid reservoir. A second flange extends outward from the sleeve to sit on a wall a container in which the print liquid reservoir is disposed. The spout also includes an angled clamp flange having an angled surface and a straight surface opposite the angled surface. The angled clamp flange is to affix the spout to the container.

Abstract: A print liquid supply apparatus or interface structure to be connected to a print system comprises a liquid channel, liquid interface and integrated circuit contact pads.

Abstract: In one embodiment a print liquid supply apparatus is provided to supply liquid to a liquid needle of a receiving station comprising a liquid container including an at least partially collapsible liquid reservoir an interface structure at a side of the container, including a liquid channel that includes a reservoir connecting portion that fluidically connects to the reservoir and a needle receiving portion to allow the liquid to flow from the reservoir to the needle; a liquid interface of the liquid channel adjacent the needle receiving portion and at a distance from the reservoir connecting portion, a front wall and/or edge adjacent the liquid interface including a push area which is disposed between the liquid interface and the container; and at least one key pen base and key pen protruding from the base in a direction parallel and opposite to the needle insertion direction; and a contact pad array next to the needle receiving liquid channel portion.

Abstract: In one example in accordance with the present disclosure, a clamp plate assembly for a print liquid supply is described. The clamp plate assembly includes a clamp plate which includes 1) two wedge-shaped forked ends to facilitate clamping a spout to a container in which a print liquid reservoir is disposed and 2) a slot defined by the forked ends to receive and retain the spout. The clamp plate assembly also includes a back plate approximately orthogonal to the clamp plate.

Abstract: A printing device interface to receive a fluid supply may include a fluid dock arranged on an external surface of a housing of the printing device, the fluid dock further arranged to receive a mechanical interface of a fluid supply wherein the arrangement of the fluid dock on the external surface of the housing enables use of a center of mass and weight of the fluid supply to maintain a mechanical, fluidic, and electrical connection with the fluid supply.

Abstract: In one example in accordance with the present disclosure, an interconnect on a print liquid supply is described. The interconnect includes a liquid interface to establish a liquid path between the print liquid supply and an ejection device in which the print liquid supply is installed. The interconnect also includes an electrical interface to establish a data transmission path between the print liquid supply and the ejection device. The interconnect also includes an external surface having a dampening element disposed thereon.

Abstract: In one example in accordance with the present disclosure, at least one print liquid supply interconnect is described. Each interconnect includes at least one needle to be inserted into a print liquid supply to allow print liquid to move between the print liquid supply and an ejection device. Each interconnect also includes two keyed slots disposed on either side of a first needle to gate insertion of print liquid supplies to a print liquid supply with protrusions that match the two keyed slots. A guide feature of each interconnect adjacent the first needle and extends between a first keyed slot and the first needle. An electrical interface of each interconnect establishes a data transmission path between the print liquid supply and the ejection device, the electrical interface disposed between the first needle and a second keyed slot.