Abstract: An example of a device (100) may include a valve body (108). The device may include a printing substance transfer window (122) through the valve body (108). The device (100) may include a printing substance dispensing nozzle (110) rotatable within the valve body (108) between a first orientation with an orifice of the printing substance dispensing nozzle (110) facing an internal face of the valve body (108) and a second orientation with the orifice (126) of the printing substance dispensing nozzle (110) facing the printing substance transfer window (122). The device (100) may include a dispensing-side gasket material (132) slideable against the internal face of the valve body (108) when rotating the printing substance dispensing nozzle (110) between the first orientation and the second orientation.

Abstract: A dispensable substance container may include an elongate body encompassing a lumen, wherein the lumen is to contain the dispensable substance; a dispensable; substance dispensing nozzle attached to a first end on the elongate body; a sealing material within the lumen, wherein the sealing material is moveable, by a pushrod, within the lumen to push the dispensable substance out the dispensing tip; and a structurally compromised portion of the elongate body extending along a length of the elongate body, wherein the elongate body is to be severed along the structurally compromised portion by the pushrod.

Abstract: An example print material replenishment device includes a container to contain print material, a dispensing end to engage a fill port of a printing device, the dispensing end including an opening that is offset from a center axis of the container, and a rotatable cover coupled to the dispensing end, the rotatable cover to expose the opening of the dispensing end based on a rotation of the print material replenishment device.

Abstract: A device may include a dispensable substance container to hold a dispensable substance; a dispensing nozzle attached to the dispensable substance container to dispense the dispensable substance out of an opening in the dispensing nozzle; and a frangible obstruction encompassing the dispensing nozzle and obstructing the opening of the dispensing nozzle wherein the frangible obstruction is to slide along the dispensing nozzle to uncover the opening when broken free from the dispensing nozzle by a wall of a receiving container during an engagement between the dispensable substance container and the receiving container.

Abstract: An example of a device (100) may include a valve body (108); a printing substance dispensing nozzle (110) rotatable within the valve body (108) between a sealed orientation and a dispensing orientation; and a locking rod extending through a locking rod window (146) in the valve body (108) and into a locking rod channel (144) in the printing substance dispensing nozzle (110), wherein the locking rod is movable within the locking rod window (146) between a first position, fixing the printing substance dispensing nozzle (110) in the sealed orientation, and a second position allowing rotation of the printing substance dispensing nozzle (110) to the dispensing orientation.

Abstract: A dispensable substance container may include a printing substance dispensing nozzle including a first material. The dispensable substance container an elongate body, including a wall, including a second material encompassing a cavity to contain a dispensable substance, and an attachment portion to attach the elongate body to the printing substance dispensing nozzle; and a structurally compromised portion of the elongate body extending along a length of the elongate body, wherein the elongate body and the attachment portion are to be severed along the structurally compromised portion by a pushrod moveable through the cavity to expel the dispensable substance out the dispensing nozzle.

Abstract: Examples described herein relate to a print particle refill device consistent with the disclosure. For instance, a print particle refill device may comprise a cap disk to form a barrier between the print particle refill device and a receptacle, a first liner adjacent to the cap disk to seal print particles in the print particle refill device, and an actuating liner to wipe print particles, when present, from the receptacle.

Abstract: An example device can include a reserve print materials container, an access port coupled to the reserve print materials container to receive, from a replenishment device, print materials directly to the reserve print materials container in-situ, and a main print materials container coupled to the reserve print materials container to receive print materials from the reserve print materials container.

Abstract: An example print material replenishment device includes a container to contain print material, a dispensing end to engage a fill port of a printing device, the dispensing end including an opening that is offset from a center axis of the container, and a rotatable cover coupled to the dispensing end, the rotatable cover to expose the opening of the dispensing end based on a rotation of the print material replenishment device.

Abstract: In some examples, a print materials container can include a dispense mechanism to dispense print materials directly to an in-situ reservoir of a printing device, a lock feature to engage a fill port during connection of the dispense mechanism to the fill port, and a valve integrated with the dispense mechanism for connecting the dispense mechanism to the fill port of the reservoir and comprising an output opening offset from a center axis of a tip of the dispense mechanism. The valve can open responsive to rotation of the valve opening with respect to the lock feature such that opposite openings align.

Abstract: Example implementations relate to print substance container vibration. A vibrator for a print system may comprise a motor, and a vibration shaft coupled to the motor to cause vibration to provide redistribution of print substance of a print substance container. The vibration may be caused in response to the rotation of an eccentrically loaded weight about a central axis of the vibrator.

Abstract: An example of a device (100) may include a valve body (108). The device (100) may include a printing substance transfer aperture (122) through the valve body (108). The device (100) may include a hood (138), fixed to the valve body (108), encompassing the printing substance transfer aperture (122) within a cavity between an external face (137) of the valve body (108) and the hood (138). The device (100) may include a printing substance dispensing nozzle (110) movable between a first position with an orifice (126) of the printing substance dispensing nozzle (110) facing an internal face of the valve body (108) and a second position with the orifice (126) of the printing substance dispensing nozzle (110) facing the printing substance transfer aperture (122). The device (100) may include a dispensing-side gasket material (132) slide-able through the printing substance transfer aperture (122) when moving the printing substance dispensing nozzle (110) between the first position and the second position.

Abstract: Example implementations relate to print substance donor containers. For example, a system comprising a receiving container with a receiving receptacle port and a donor container comprising a outlet probe to transport print substance material from the donor container to the receiving container in response to the outlet probe coupling with the receiving receptacle port of the receiving container.

Abstract: An example device capable of predicting print substance end-of-life (EOL) comprises a container to hold a print substance, the container comprising a refill port through which print substance is to be introduced into the container. The example device also comprises a processor to receive signals indicative of an amount of print substance introduced via the refill port. The processor is also to predict a print substance end-of-life (EOL) based on the amount of print substance introduced.

Abstract: In various examples, biased print gaskets can include a non-transitory machine-readable medium storing instructions executable by a processing resource to charge a material included in a gasket with a first bias voltage to repel print particles from a surface of the gasket, cease charging the material with the first bias voltage and charge the material with a second bias to attract print particles to a surface of the gasket.

Abstract: In an example, a print component includes a guide structure. The example guide structure includes a recess to receive a print material container and a guideway with a guide wall to support rotation of the print material container. Upon rotation of the print material container, an electrical contact of the print material container moves towards an electrical contact coupled to the guide structure of the print component. In another example, a container includes a housing, a material transfer interface, and a mechanical interface. In that example, the mechanical interface includes a guide structure that defines a protrusion and a guideway to allow the container to rotate within a recess defined by a receptacle shell. Upon rotation of the container, an electrical contact coupled to the guide structure moves towards an electrical contact on the receptacle shell.

Abstract: In various examples, colorant sensors can include a printing device comprising a hopper to receive a colorant, a supply to receive the colorant from the hopper, an aperture disposed between the hopper and the supply, a light emitter to emit light that passes through the aperture, and a light sensor located on the opposite side of the aperture relative the light emitter to sense a portion of the emitted light that passes through the aperture to permit determination of whether colorant present in the aperture based on the portion of the emitted light sensed by the light sensor.

Abstract: In some examples, a print materials container can include a dispense mechanism to dispense print materials directly to an in-situ reservoir of a printing device, a lock feature to engage a fill port during connection of the dispense mechanism to the fill port, and a valve integrated with the dispense mechanism for connecting the dispense mechanism to the fill port of the reservoir and comprising an output opening offset from a center axis of a tip of the dispense mechanism. The valve can open responsive to rotation of the valve opening with respect to the lock feature such that opposite openings align.

Abstract: A seal removal structure can include a shell and a piercing member. The shell can have a first end section and a second end section. The first end section can be configured to receive a supply conduit of a supply fluid container and the second end section can be dimensioned to receive a receiving conduit of a container device. Additionally, the piercing member can be provided within the first end section to penetrate a seal of the supply conduit when the supply conduit is received by the first end section. Moreover, the piercing member can incise at least a portion of the seal from the supply conduit when the supply conduit or the piercing member rotates, while the supply conduit is received by the first end section.

Abstract: A dispensable substance container may include a printing substance dispensing nozzle comprising a first material. The dispensable substance container an elongate body, comprising a wall, comprising a second material encompassing a cavity to contain a dispensable substance, and an attachment portion to attach the elongate body to the printing substance dispensing nozzle; and a structurally compromised portion of the elongate body extending along a length of the elongate body, wherein the elongate body and the attachment portion are to be severed along the structurally compromised portion by a pushrod moveable through the cavity to expel the dispensable substance out the dispensing nozzle.