Abstract: Disclosed herein is a spittoon assembly for a printing device, a printing device comprising a spittoon assembly, and a method of cleaning a print head using a spittoon assembly. The spittoon assembly comprises a waste receptacle and a spit plate with a receiving surface. The receiving surface is inclined relative to a horizontal direction by an inclination angle when the spittoon assembly is mounted in the printing device. A fluid path extends from the receiving surface to the waste receptacle.

Abstract: A fluid ejector for ejecting discrete volumes of ejectant includes a body with opposing first and second surfaces. One or more nozzles are defined as conduits extending through the body between the surfaces to connect first and second orifices at the first and second surfaces respectively. The fluid ejector further includes a gas supply means having a gas outlet and an ejectant supply means. The ejectant supply means supplies the ejectant to the nozzles at a pressure above ambient via their supply orifices. The supply orifice is defined in a conduit's side or is the second orifice. Relative movement of the gas supply means and body exposes first orifices to the gas outlet allowing the gas supply means to supply gas at a pressure above ambient, wherein a pressure difference thereby created between the first and second orifices causes ejection of the ejectant from the nozzles through the second orifices.

Abstract: According to examples, an apparatus may include a fluidic chamber, in which fluid is to be temporarily held. The apparatus may also include a heating component to generate heat to form a drive bubble in the fluid held in the fluidic chamber and a cavitation plate may be provided between the fluidic chamber and the heating component. The cavitation plate may be in communication with the fluidic chamber and may physically separate the fluidic chamber from the heating component to protect the heating component. In addition, a controller may determine a condition in the fluidic chamber based on an electrical signal received from the cavitation plate.

Abstract: A liquid ejection head includes ejection orifices for ejecting liquid, common liquid chambers connected to the ejection orifices, common flow passages, and pitch conversion flow passages that connects the common flow passages and liquid chambers to each other. The pitch conversion flow passages includes a periphery formed with resin. In a case where a number of pitch conversion flow passages in a group is minimum on a condition that one or more of the pitch conversion flow passages are respectively included in the group, the pitch conversion flow passages have a repeating pattern in which the group is repeatedly arranged. At least one of two pitch conversion flow passages adjoining an m-th pitch conversion flow passage (m is all integers from 1 to n?2, where n is an integer of 3 or more) is one of first to (m+1)-th pitch conversion flow passages.

Abstract: Disclosed herein is a print head maintenance cartridge, a printing device and a method of controlling a wiping subsystem of a print head maintenance cartridge. The print head maintenance cartridge comprises a wiping subsystem with a wiping material to wipe a print head; a clean material roll, wherein a clean part of the wiping material is rolled up on the clean material roll at least in part; a brake to generate a first brake force applied to the wiping material; and a friction element to generate a second brake force applied to the wiping material, wherein the friction element compensates at least in part a change in the first brake force to control a total brake force, wherein the total brake force is the sum of the first and second brake forces.

Abstract: Provided is a flow path unit through which liquid to be supplied to a head for ejecting the liquid flows. The flow path unit includes a flow path member having a flow path, and a filter unit configured to be detachably attached to the flow path member, the flow path member has an opening that communicates with the flow path and to which the filter unit is configured to be mounted, and the filter unit includes a filter configured to filter liquid flowing through the flow path, and a holding member configured to hold the filter.

Abstract: A wiping unit includes a wiping member with a long shape configured to wipe a liquid ejecting head configured to discharge liquid, a first roller around which to wind the wiping member, a second roller configured to wind up the wiping member fed out from the first roller, a driving force transmission mechanism configured to transmit a driving force of a driving source to the second roller, a conveyance roller configured to make contact with the wiping member and rotate along with a movement of the wiping member, a first detection unit configured to detect a rotation amount of the first roller, and a second detection unit configured to detect a rotation amount of the conveyance roller.

Abstract: A channel member of a liquid ejection head includes an ejection surface, an outer peripheral surface that is connected to an outer edge of the ejection surface and that faces outside of the ejection surface in a direction along the ejection surface, and a plurality of ejection holes that open in the ejection surface. The channel member includes a plurality of concave portions in the outer edge of the ejection surface, the plurality of concave portions being recessed in the ejection surface and being recessed in the outer peripheral surface. With the configuration, it is possible to collect, in the concave portions, a liquid (such as ink mist) that has leaked out from the ejection holes.

Abstract: A printing device includes: an inkjet printhead; a lift mechanism for raising and lowering the printhead through a lift path; and a pivotally movable spit flap positioned in the lift path. The spit flap is configured to swing away from the lift path when the printhead contacts the spit flap during lowering of the printhead.

Abstract: A printhead maintenance system for a printing machine having at least one printhead, the system includes a body, at least one guide track supporting the body for movement along the at least one guide track in proximity to the face of the printhead, and a drive mechanism in engagement with the body and operable to move the body along the guide track. A wiper blade is movably mounted on said body for movement between a retracted position in which the wiper blade cannot contact the face of the printhead and an operative position in which the wiper blade can contact the face of the printhead. A biasing mechanism is provided between the wiper blade and the body that is configured to bias the wiper blade to the operative position. The system includes a retraction mechanism that is operable to move the wiper blade to the retracted position upon movement of the body along the guide track.

Abstract: Provided is a liquid ejecting head including a nozzle surface, a shaft portion, and a housing portion. The nozzle surface has nozzles configured to eject liquid in a first direction. The shaft portion includes a shaft main body extending in the first direction. The housing portion has a through-hole in which the shaft portion is inserted. The first shaft portion has a first external thread and a first internal thread on a first side to which the first direction leads.

Abstract: A liquid ejecting device includes a head, a cap, a moving mechanism and a controller. The moving mechanism is configured to move the head and the cap relative to each other to switch the cap between a capping state in which the cap is in contact with the head and covers the plurality of nozzles and a non-capping state in which the cap is separated from the head and uncovers the same. The controller is configured to perform setting a non-ejection drive time based on an uncapped time duration which is a length of time from a timing at which the cap is switched to the non-capping state until a timing at which the cap is switched back to the capping state. The controller is configured to perform vibrating meniscus of liquid in the plurality of nozzles during the non-ejection drive time.

Abstract: Long-term reliability of a liquid ejection head substrate and a liquid ejection head is improved by suppressing dissolution of an intermediate layer due to anodization. A liquid ejection head substrate including: a flow passage forming member having an ejection orifice and a flow passage; a heating resistance element for ejecting a liquid; an insulating layer covering the heating resistance element; a protecting layer whose surface is exposed to the flow passage; and an intermediate layer provided between the flow passage forming member and the protecting layer, in which the intermediate layer contains a material represented by a following composition formula (I): Siw1Ox1Cy1 (I), 39?w1?62 (at. %), 32?x1?55 (at. %), and 6?y1?29 (at. %), and w1+x1+y1=100 (at %).

Abstract: A liquid ejection head includes a recording element substrate. The recording element substrate includes a recording element, a circuit wiring driving the recording element to eject liquid, a protective film, an electrode area, a plating bump, and a resin film having elastic properties. The electrode area electrically connects the circuit wiring to an external circuit through an opening in the protective film. The protective film covers the circuit wiring in an outer adjacent region to the opening to define a step in the protective film. The protective film protects the circuit wiring against the liquid. The plating bump is electrically connected to the electrode area. The resin film covers the step and extends from an inner peripheral region of the opening onto the protective film beyond an edge of the opening. The plating bump includes a part projecting from the electrode area onto an upper surface of the resin film.

Abstract: A waste liquid container includes an accommodation chamber including an opening that is open upward of the waste liquid container in a mounted state where the waste liquid container is mounted in the mounting portion, the accommodation chamber being configured to accommodate the liquid, and a contact portion provided at a surface that intersect with a bottom surface and an upper surface of the waste liquid container, the contact portion being configured to contact a horizontal plane and set a posture of the accommodation chamber with respect to the horizontal plane in a placement state where the waste liquid container is placed at the horizontal plane with the surface facing downward, wherein in the placement state, an inner surface is in an inclined state where the bottom surface is lower than the upper surface, the inner surface serving as a lower surface of the accommodation chamber.

Abstract: An element substrate of a liquid ejection head includes an ejection element for ejecting a liquid, a plurality of electrode pads for receiving power for causing the ejection element to eject the liquid, and a sensor for detecting that the liquid has invaded the vicinity of the plurality of electrode pads. The sensor has first wiring connected with one electrode pad of the plurality of electrode pads and second wiring connected with one electrode pad different from the electrode pad connected with the first wiring.

Abstract: A liquid ejection head includes a channel member, a pressurizing part, a cover member, and a sealing member. The channel member includes an ejection hole, a pressurizing chamber, an ejection hole surface, and a pressurizing chamber surface. The pressurizing chamber is connected with the ejection hole. The ejection hole surface is positioned on the ejection hole side. The pressurizing chamber surface is positioned on the pressurizing chamber side. The pressurizing part is positioned in a pressurizing region in the pressurizing chamber surface. The cover member stands on the channel member. The sealing member seals the cover member and the channel member. The channel member includes a groove positioned in the pressurizing chamber surface but outside the pressurizing region. The cover member is positioned in the groove. Further, the sealing member is positioned between a fixing portion in the cover member which is positioned in the groove and the groove.

Abstract: A wafer structure is disclosed and includes a chip substrate and at least one inkjet chip having plural ink-drip generators. Each ink-drop generator includes a thermal-barrier layer, a resistance heating layer and a protective layer. The thermal-barrier layer is formed on the chip substrate, the resistance heating layer is formed on the thermal-barrier layer, a part of the protective layer is formed on the resistance heating layer, and the barrier layer is formed on the protective layer. The ink-supply chamber has a bottom in communication with the protective layer, and a top in communication with the nozzle. The thermal-barrier layer has a thickness of 500˜5000 angstroms, the protective layer has a thickness of 150˜3500 angstroms, the resistance heating layer has a thickness of 100˜500 angstroms, the resistance heating layer has a length of 5˜30 microns, and the resistance heating layer has a width of 5˜10 microns.

Abstract: A liquid ejection head includes ejection orifices for ejecting liquid, common liquid chambers connected to the ejection orifices, common flow passages, and pitch conversion flow passages that connects the common flow passages and liquid chambers to each other. The pitch conversion flow passages includes a periphery formed with resin. In a case where a number of pitch conversion flow passages in a group is minimum on a condition that one or more of the pitch conversion flow passages are respectively included in the group, the pitch conversion flow passages have a repeating pattern in which the group is repeatedly arranged. At least one of two pitch conversion flow passages adjoining an m-th pitch conversion flow passage (m is all integers from 1 to n?2, where n is an integer of 3 or more) is one of first to (m+1)-th pitch conversion flow passages.

Abstract: There is provided a liquid discharge apparatus including: a head including a nozzle surface; a wiper including a blade and a blade holder; a posture changer configured to change a posture of the blade to a first posture in which the blade makes contact with the nozzle surface and to a second posture which is different from the first posture; and a cleaner including a cleaning surface intersecting the nozzle surface. The blade in the first posture is configured to move in a first sliding direction relatively with respect to the head in a state in which the blade makes contact with the nozzle surface. The blade in the second posture is configured to move in a second sliding direction intersecting the first sliding direction relatively with respect to the cleaner in a state in which the blade makes contact with the cleaning surface.