Abstract: The invention relates to a method for manufacturing vacuum insulation panels (1) with a fiber core (3), comprising the steps of: providing a core blank of fibers, arranging foil sections on large faces of the core blank, compressing the core blank to a predetermined thickness for forming the core (3), wherein in the compression step the core blank is arranged between the foil sections, wherein the mechanical compression of the core (3) is maintained until the foil sleeve (2) is sealed, and wherein the compression step is performed at the place of manufacture at room temperature without thermal impact, connecting the foil sections for forming the foil sleeve (2), wherein a partial section of the foil sleeve (2) still remains open, evacuating the foil sleeve (2) enveloping the core (3) up to a pressure of <1 mbar, and complete closing of the foil sleeve (2), wherein the foil sleeve (2) is made of a plastic composite foil.

Abstract: A method for producing a metal-carbon fiber composite material includes the steps of: obtaining a coated foil (12) in which a carbon fiber layer (11) is formed on a surface (10a) of a metal foil (10) by applying a coating liquid (5) containing carbon fibers (1), etc., on the surface (10a) of the metal foil (10) with a gravure coating device (20); forming a laminate in which a plurality of coated foils (12) is laminated; and integrally joining the coated foils (12) by heating while pressurizing the laminate in a lamination direction of the coated foils (12). The shape of a cell (22) of a circumferential surface (21a) of a gravure roll (21) of the gravure coating device (20) is a cup shape and a diameter of a circle inscribed in a mouth shape of the cell (22) is set to 1.2 times or more the average fiber length.

Abstract: The method of making a laminate (100) includes stretching a thermoplastic layer (102) so that it plastically deforms, relaxing the plastically deformed thermoplastic layer (102) to reduce its tensile strain, and subsequently laminating the thermoplastic layer (102) to a substrate (104) to make the laminate (100). The stretching, relaxing, and laminating are completed in-line. The thermoplastic layer has a first surface and a second surface opposite the first surface, with the first surface of the thermoplastic layer bearing a plurality of male fastening elements. The second surface of the thermoplastic layer (100) is laminated to the substrate (104).

Abstract: Touchscreen computing devices are often assembled by applying an adhesive to an interface perimeter between a cover glass and a chassis. Occasionally, a device is de-bonded to troubleshoot errors in the functionality of the device. The adhesive often is resistant to releasing the bond between the cover glass and a chassis by mechanical force and the cover glass may be damaged during disassembly. Passive and/or active de-bonding aids facilitate transfer of thermal energy to the adhesive in a manner that avoids or minimizes the transfer of thermal energy to heat-sensitive components of the device.

Abstract: A manufacturing computer device for dynamically adapting additive manufacturing of a part is configured to store a model of the part including a plurality of build parameters. The manufacturing computer device is also configured to receive current sensor information of at least one current sensor reading of a melt pool from a build of the part in progress. The computer device is further configured to determine one or more attributes of the melt pool based on the current sensor information. Moreover, the computer device is configured to calculate at least one unseen attribute of the melt pool. In addition, the computer device is configured to determine an adjusted build parameter based on the at least one unseen attribute, the one or more attributes, and the plurality of build parameters. The computer device is also configured to transmit the adjusted build parameter to a machine currently manufacturing the part.

Abstract: Embodiments of the present disclosure are drawn to additive manufacturing apparatus and methods. An exemplary additive manufacturing method may include forming a part using additive manufacturing. The method may also include bringing the part to a first temperature, measuring the part along at least three axes at the first temperature, bringing the part to a second temperature, different than the first temperature, and measuring the part along the at least three axes at the second temperature. The method may further include comparing the size of the part at the first and second temperatures to calculate a coefficient of thermal expansion, generating a tool path that compensates for the coefficient of thermal expansion, bringing the part to the first temperature, and trimming the part while the part is at the first temperature using the tool path.

Abstract: System and method for optimizing a three-dimensional model representing a shape of an object to be fabricated from a plurality of materials having known physical properties. The object is designed to exhibit one or more target properties and the three-dimensional model includes a plurality of cells. The system includes at least one processor programmed to receive a data structure including information for a material property gamut of microstructures for the plurality of materials and two or more of the known physical properties of the plurality of materials, and perform a topology optimization process on the three-dimensional model to generate an optimized model, wherein the topology optimization process is constrained based, at least in part, on the information in the received data structure and the one or more target properties.

Abstract: A computer-enabled device for dynamically creating or modifying at least a portion of an additive manufacturing build for making a part is provided. The device is in direct or indirect communication with one or more additive manufacturing machines that use one or more build parameters. The device is configured to analyze a plurality of build information pertaining to the part. The device is also configured to assess whether one or more differences between the pre-existing data and the non-pre-existing data will result in a deviation from, or improvement to, the part, the additive manufacturing build, or both and automatically create or modify, one or more of the build parameters of the part, at least a portion of the additive manufacturing build, or a combination thereof, based on the assessment of the one more differences.

Abstract: A plate cylinder includes a plate cylinder body having a longitudinally-extending first hole and a longitudinally extending plate-receiving gap connected to the first hole, the plate cylinder body having a longitudinally-extending second hole parallel to the first hole; and a lock-up mechanism including: a torsion bar extending in the longitudinally extending hole and having a surface for contacting an end of a plate located in the gap; a swing bar extending longitudinally in the second hole and being movable perpendicular to a longitudinal direction due to the second hole being oversized compared to dimensions of the swing bar within the second hole; a lever connecting the swing bar and the torsion bar, the torsion bar being rotatable as the swing bar moves within the second hole; and an activator for rotating the torsion bar. A printing press and methods are also provided.

Abstract: The present invention relates to a process for flexographic printing of ink onto a thin polymeric film substrate. In particular the process relates to printing using a central impression cylinder press, wherein the width of printed substrate is greater than 800 mm, to provide a high opacity printing process. According to the present invention the printing process comprising: transferring ink from an ink reservoir to an anilox roll; transferring the ink from the anilox roll to a printing plate wherein the ink volume transferred by the anilox roll is from 9-20 cm3/m2; and applying the ink to the surface of the substrate by applying pressure between the printing plate and an impression surface and passing the substrate between the printing plate and the impression surface wherein the printing plate is a high definition printing plate comprising at least 40 lines per centimeter.

Abstract: The present disclosure relates to an apparatus for flexographic printing of a web of packaging material with printing ink and an inlet module for a flexographic printing apparatus. The apparatus may include an ink pan or chamber, and an anilox roll rotary at least partly inside the ink chamber for picking up and transferring printing ink from the ink chamber to an impression cylinder which is rotary in transfer contact with the anilox roll. The ink chamber may be elongated and extend axially along the anilox roll, the ink chamber having a first axial end and a second axial end opposite the first axial end. The apparatus may further include a first printing ink inlet arranged at the first axial end and a second printing ink inlet arranged at the second axial end.

Abstract: A printing apparatus according to an embodiment of this invention brings, out of a cleaning unit that cleans a transfer member in contact with a transfer member and an application unit that applies a reactive liquid with ink to the transfer member, the cleaning unit into contact with the transfer member to clean the transfer member by the cleaning unit at the start of the printing operation. Alternatively, out of the application unit and an absorbing unit that absorbs a liquid component from the reactive liquid applied by the application unit in contact with the transfer member, the printing apparatus brings the application unit into contact with the transfer member to apply the reactive liquid by the application unit.

Abstract: A print element substrate comprises: a plurality of heaters configured to cause discharge of droplets; a pad array in which a plurality of pads configured to do electrical connection from an outside are arranged; and a plurality of resistance monitor elements configured to measure resistance values of the plurality of heaters, wherein the plurality of resistance monitor elements are arranged along a direction of the pad array.

Abstract: Provided are a printing result inspection apparatus, a method, and a program capable of determining a printing defect caused by a printing step and a printing paper defect caused by printing paper by reading the printing paper once. A printing result inspection apparatus 10 accepts designation of paper defect information used for determining a defected region through an operation unit 14. A defect determination unit 24 determines whether defected regions D10, D12, and D14 extracted from a non-image region A10 are the printing defect or the printing paper defect based on designated paper defect information, a density change amount, and a color, and an image feature amount of a defected region determined as the printing paper defect in the non-image region A10 is stored in paper defect information I10 and is accumulated in a paper defect information storage unit 30.

Abstract: There is provided a droplet deposition apparatus comprising: control circuitry configured to generate a common drive waveform; storage to store data, wherein the storage comprises a buffer to store scheduled image data relating to one or more pixels; a droplet deposition head having one or more actuator elements configured to be driven in response to drive pulses derived from the common drive waveform; and wherein the common drive waveform comprises a plurality of pixel periods comprising a firing phase and a non-firing phase, each firing phase comprising a firing pulse and each non-firing phase comprising a non-firing pulse, wherein the characteristics of each non-firing pulse are defined in response to the data in storage, and wherein, the firing pulse of a first pixel period is applied as a drive pulse to an actuator element based on the scheduled image data relating to a first pixel, and wherein the non-firing pulse of the first pixel period is applied as a drive pulse to the actuator element based on pas

Abstract: The present disclosure relates to a device and method for detecting an ink droplet. The device includes a conveying means configured to convey an article to be printed to a printing position under a print head for ejecting the ink droplet; an imaging means configured to acquire an image of a printing area after the ink droplet is ejected on the printed area of the surface of the article by the print head; an analyzing means configured to acquire at least one geometric property of the ink droplet from the image and determine whether ink droplet abnormality has occurred based on the at least one geometric property.

Abstract: A printing apparatus, comprises: a printhead substrate; an application circuit for applying a driving signal to the driving element; a ground line connected to the application circuit; a plurality of temperature sensors that detects temperature relate to the printhead substrate, wherein the cathode side of the plurality of temperature sensors connects the ground line via a resistance; a first selection circuit, on an anode side of the plurality of temperature sensors, that selects one temperature sensor; a second selection circuit, on the cathode side of the plurality of temperature sensor, that selects the one temperature sensor; and a temperature signal output circuit that outputs a temperature signal in accordance with a difference between a voltage of an anode side and a voltage of a cathode side of the selected temperature sensor.

Abstract: An inkjet recording apparatus, including a recording head with a nozzle, a cap, a moving mechanism to move at least one of the recording head and the cap, a communication interface, and a controller, is provided. In response to receipt of a preceding command from an information processing terminal through the communication interface, the controller determines a standby period based on a parameter being in correlation with a receiving interval between a preceding command and a record command. In response to elapse of the determined standby period, the controller controls the moving mechanism to uncap the recording head. In response to receipt of the record command from the information processing terminal, and in response to completion of the uncapping, the controller controls the recording head in accordance with the record command to discharge the ink from the nozzle to record the image on a medium.

Abstract: An apparatus includes a recording head including a first discharge port array and a second discharge port array, the first and second discharge port arrays being shifted and arranged in a first direction so that part of the discharge ports arranged at an end portion of the first discharge port array in the first direction and part of the discharge ports arranged at an end potion of the second discharge port array in the first direction are located at the same positions in the first direction. The plurality of discharge ports in each of the first and second discharge port arrays is obliquely arranged at a predetermined tilt with respect to the first direction. Discharge timing is adjusted based on the tilt of the discharge port arrays.

Abstract: An object of the present invention is to bring a print head into a liquid ejectable state while reducing waste ink. The present invention is a printing apparatus including: a tank in which liquid is stored; a print head that comprises an ejection port surface on which an ejection port is formed, the ejection port ejecting the liquid which is supplied from the tank; a cap mechanism that caps the ejection port surface of the print head; a timer that counts a time during which the ejection port surface is capped; and a circulation unit configured to circulate the liquid in a circulation path including the tank and the print head, and in a case where the timer counts a predetermined time, the circulation unit circulates the liquid.

Abstract: A liquid ejecting head has a laminated flow path member on which a supply flow path for individually supplying a plurality of liquids to an element substrate and a collection flow path for individually collecting the liquids are formed. The supply flow path includes a first common supply flow path for horizontally leading a first liquid and a second common supply flow path for horizontally leading a second liquid to positions corresponding to a plurality of element substrates. The first and second common supply flow paths are formed in the same layer of the laminated flow path member. The collection flow path includes a first common collection flow path for horizontally collecting the first liquid and a second common collection flow path for horizontally collecting the second liquid from positions corresponding to the plurality of element substrates. The first and second common collection flow paths are formed in the same layer of the laminated flow path member.

Abstract: An ejection energy generating element is provided in a first pressure chamber so that a liquid in the first pressure chamber is ejected from an ejection port. A pressurization energy generating element is provided in a second pressure chamber so that the liquid in the first pressure chamber is pressurized. An opening area of a hole open to the second pressure chamber is smaller than an opening area of the ejection port.

Abstract: A liquid ejection head includes a first channel member and a plurality of pressurizing parts. The first channel member includes a plurality of ejection holes, a common channel, a damper chamber, and a damper. The first channel member is configured by a plurality of flat plates including a first plate with the plurality of ejection holes and a second plate adjacent to this. The second plate includes a first part sandwiched between the damper chamber and the first plate. A covering layer is unevenly provided on the first surface of the first part.

Abstract: The liquid ejection head 1 includes an element substrate 4 including an energy-generating element that applies ejection energy to liquid, a first electric wiring board 7 electrically connected to the element substrate 4, and a second electric wiring board 9 on which an integrated circuit element 10 is mounted and which is electrically connected to the first electric wiring board 7. An electric signal is supplied to the integrated circuit element 10 mounted on the second electric wiring board 9 through the first electric wiring board 7, processed by the integrated circuit element 10, and supplied to the energy-generating element through the second electric wiring board 9 and the first electric wiring board 7.

Abstract: A liquid discharge head includes a substrate that is provided with. a supply passage having an opening; an energy generating element that is disposed on a surface of the substrate; an electric wiring layer; an insulation layer; and a discharge port member that forms a discharge port. The insulation layer has an end portion adjacent to the opening of the supply passage and set back from an edge of the opening of the supply passage toward a side where the energy generating element is disposed. The electric wiring layer includes a plurality of electric wiring layers layered on each other.

Abstract: A printhead includes a number of inkjet slivers molded into a moldable substrate. The overmolded inkjet slivers form at least one die. The printhead also includes a number of wire bonds electrically coupling the inkjet slivers to a side connector. The side connector electrically couples the inkjet slivers to a controller of a printing device.

Abstract: A liquid ejection head substrate has heating unit and an element array in which a plurality of ejection energy generating elements generating ejection energy for liquid ejection are arranged on a surface side of a base material. The heating unit includes a heating element extending in a direction of the element array and generating heat by being energized, wiring spaced apart from the heating element in a direction orthogonal to the surface of the base material, and a plurality of connecting portions connecting the heating element and the wiring to each other. The heating element, the wiring, and the plurality of connecting portions are provided in a region overlapping a region where the element array is disposed in a direction orthogonal to the direction of the element array when seen from the direction orthogonal to the surface of the base material. A current flows to the wiring in a middle of a path of the current flowing through the heating element when the heating element is energized.

Abstract: A semiconductor device used for a liquid discharge head is provided. The device includes a wiring layer, an insulating member formed above the wiring layer, a heat generation element arranged above and in contact with the insulating member, and electrically connected to the wiring layer, a metal member arranged above and in contact with the insulating member, and electrically connected to the wiring layer, and an electrically conductive member covering an upper surface of the metal member and electrically connected to the wiring layer through the metal member. A resistivity of the electrically conductive member is less than a resistivity of the metal member and a resistivity of the heat generation element. The heat generation element and the metal member are separated from each other.

Abstract: One embodiment relates to a liquid discharge head substrate including at least one heat generating resistive element, a first insulating layer covering the heat generating resistive element, a conductive layer disposed on the first insulating layer and overlapping the heat generating resistive element with the first insulating layer interposed therebetween in a plan view with respect to an upper surface of the heat generating resistive element, and a second insulating layer covering an edge of the conductive layer. The edge of the conductive layer has a tapered shape.

Abstract: There are provided an element board, a liquid ejection head, and a printing apparatus capable of suppressing decrease of the durability of the heating resistor elements. For that purpose, a group of driving electrode pads is shifted from the center of a column of electrode pads toward the side where a heating resistor element located farthest from the group of driving electrode pads exists.

Abstract: An electronic device includes a joined-structure assembly in which a plurality of structures are joined together. At least one of the plurality of structures includes a movable region, a part of an adhesive agent applied between the structures faces a space communicating with the movable region, and the adhesive agent includes an organo-siloxane compound with three or more reaction points.

Abstract: A nozzle plate includes a first surface, a second surface opposite the first surface, and a plurality of through holes which penetrate through the plate from the first surface to the second surface and become nozzles. Each of the through holes includes, on at least the first surface side forming the side where the liquid is ejected, an inversely tapered part having a cross-sectional area becoming larger toward the first surface. The first surface includes a first region and a second region which is not superimposed on the first region. A first through hole of one the through holes is arranged in the first region, a second through hole of one the through holes is arranged in the second region. When viewed from the first surface the width of the inversely tapered part in the first through hole is larger than the inversely tapered part in the second through hole.

Abstract: A controller of an inkjet printing apparatus is configured such that, in response to receipt of a preceding command, which notifies transmission of a recording command in advance, from an information processing device through the communication device, the controller executes a separating process to move from a covering position to a spaced position, a moving process to move a carriage, from which the cap is separated, from a first position to a second position, a flushing process to cause the inkjet head to eject the ink toward an ink receiver in response to receipt of a recording command instructing recording of an image on the sheet and upon completion of the moving process, and a recording process to cause a conveyer to convey the sheet and cause the inkjet head to eject the ink in accordance with the recording command, in response to completion of the flushing process.

Abstract: A method for maintaining an ink jet head according to the invention includes at least one of a maintenance step of attaching a maintenance liquid to a nozzle surface of an ink jet head, which ejects a reaction solution including an aggregating agent for aggregating or thickening components of an ink composition, to clean the nozzle surface, and a maintenance step of covering and moisturizing the nozzle surface with a head moisturizing cap supplied with the maintenance liquid, in which the maintenance liquid includes a water-soluble organic solvent having a boiling point of 280° C. or less and water.

Abstract: A liquid ejecting apparatus includes a liquid ejecting head that prints an image on a medium, by ejecting a liquid through nozzles, a transport belt that transports the medium, at a position opposite the liquid ejecting head, a moving mechanism that moves the transport belt in a width direction, and a control unit that controls the moving mechanism. The liquid ejecting head includes a first nozzle group and a second nozzle group. The control unit controls the moving mechanism such that a nozzle group performing the preliminary ejection which is an ejection of the liquid not uninvolved in printing among the first nozzle group and the second nozzle group is located at a position not facing the transport belt, and a nozzle group that does not perform the preliminary ejection is located at a position facing the transport belt.

Abstract: A print module may include a printhead die. The printhead die may include a chamber layer having ink chambers and micro-channels formed in the chamber layer. The print module may further include a die carrier including manifold passages through which ink flows to and from the printhead die and dual pressure regulators to flow fluid through the micro-channels of the printhead die.

Abstract: A liquid discharging head includes an external cover portion which is connected to a liquid discharging apparatus and which discharges a liquid from a nozzle, in which the external cover portion includes a first gas hole for communicating a first gas flow path which is provided inside the external cover portion with an atmosphere, a second gas hole for carrying a gas between a second gas flow path which is provided inside the external cover portion and the liquid discharging apparatus, and a first liquid hole for carrying the liquid between a liquid flow path which is provided inside the external cover portion and the liquid discharging apparatus, and in which the first gas hole and the second gas hole are disposed separately in the external cover portion.

Abstract: A liquid storage unit includes a liquid container, a spout, a plate-shaped member, and a bag. The liquid container is provided with a storage portion configured to store a liquid inside of a flexible sheet. The spout is provided on the liquid container, and is configured to supply the liquid stored in the storage portion to an inkjet printer in a state in which the spout is connected to the inkjet printer. The plate-shaped member is configured to sandwich at least a portion of an end portion of the liquid container from both sides in an orthogonal direction that is orthogonal to a surface of the sheet. The bag is configured to enclose the liquid container and the plate-shaped member. An inside surface of the bag contacts the plate-shaped member when the inside of the bag is in a depressurized state.

Abstract: A liquid discharge apparatus including a liquid discharge head that discharges a liquid by vibrating a vibration plate by a drive element and changing a pressure in an internal space filled with the liquid, a pressurization supply unit that forcibly feeds the liquid into the liquid discharge head, and a controller that restricts drive of the drive element in accordance with a pressure condition in the liquid discharge head.

Abstract: A liquid ejection head includes a liquid ejection portion configured to eject a liquid and a liquid supplying member 2220. The liquid supplying member 2220 includes a first face 2227, a second face 2228 that is the back face of the first face 2227, a first connecting portion 2241 provided on the first face 2227 and fluidly connected to a main body 1001, a second connecting portion 2242 provided on the second face 2228 and fluidly connected to the liquid ejection portion, and an interior channel communicating the first connecting portion 2241 and the second connecting portion 2242. The interior channel includes a portion 2246 extending toward the first face 2227 and a portion 2247 extending toward the second face 2228.

Abstract: Element substrate 2 has ejection ports for ejecting liquid, pressure chambers 62 for storing the liquid to be ejected from the ejection ports, liquid supply paths for supplying liquid to the pressure chambers and liquid recovery paths 66 for recovering liquid from the pressure chambers. The filter chambers 23 have respective filters 11 for seizing foreign objects contained in liquid. Liquid is forced to flow from downward to upward relative to the filters 11.

Abstract: In a configuration having a circulation flow path in association with an ejection element, there is provided a liquid ejecting apparatus capable of circulating liquid suitably and maintaining stable ejection operation while reducing liquid vaporization, a power supply capacity, and the effect of noise. For this purpose, in a configuration in which liquid delivery mechanisms that facilitate a flow in a flow path are prepared in association with pressure chambers, the liquid delivery mechanisms are divided into a plurality of blocks and the liquid delivery mechanisms included in each of the blocks are driven at different timings.

Abstract: A liquid cartridge includes: a cartridge body defining a liquid chamber; a liquid-supply part; a deformable member protruding upward relative to the cartridge body; and a detection member having a detected part. The liquid chamber is configured such that an internal pressure thereof is reduced in accordance with outflow of liquid from the liquid chamber. The deformable member defines an inner space communicating with the liquid chamber, the deformable member being deformable such that a volume of the inner space is reduced in accordance with the reduction in the internal pressure of the liquid chamber. The detected part is movable from a first position to a second position, the detected part at the second position being in contact with the deformable member, the detected part being further movable from the second position to a third position below the second position in accordance with deformation of the deformable member.

Abstract: A liquid cartridge includes: a casing including a liquid chamber; a liquid supply portion; a deformable member; a movable member; and a support member. The liquid chamber is configured such that an internal pressure of the liquid chamber is reduced as liquid flows out of the liquid chamber. The liquid supply portion allows liquid in the liquid chamber to flow out of the liquid chamber. The deformable member protrudes further upward relative to an upper surface of the casing. The deformable member has an internal space in communication with the liquid chamber. The deformable member is elastically deformable such that a volume of the internal space is reduced as the internal pressure of the liquid chamber is reduced. The movable member includes a detection portion movable in upward and downward directions in accordance with the elastic deformation of the deformable member. The support member supports the movable member.

Abstract: A print head has a fluid slot and a sensing chamber having a first port connected to the fluid slot and a second port. The sensing chamber contains an ink level sensor. A circulation passage extends from the fluid slot and is fluidly coupled to the second port. A fluid pump circulates fluid through the circulation passage.

Abstract: An inkjet recording apparatus includes a recording head, an ink tank, a supply flow path, a supply pump located in the supply flow path, a collection flow path, a relief flow path connecting a first position in the supply flow path to a second position in the supply flow path, wherein the first position is located at a downstream side of the supply pump in the supply flow path and the second position located at an upstream side of the supply pump in the supply flow path, and a differential pressure regulating valve located in the relief flow path and configured to, in a case where the pressure of the pumped ink in the supply flow path is larger than a predetermined value, open the relief flow path so as to allow ink in the supply flow path to flow from the first position to the second position.

Abstract: A liquid ejection head has a plurality of ejection modules having a recording element substrate equipped with a plurality of ejection orifices for ejecting a liquid, a plurality of first flow path members that supports at least one of the ejection modules and a second flow path member provided in common to the first flow path members and supporting the first flow path members. The first flow path members and the second flow path member are equipped with a flow path for supplying a plurality of recording element substrates with a liquid. The first flow path members are joined with the second flow path member via an adhesive layer without being brought into direct contact with each other.

Abstract: A plurality of pressure chambers are formed in a circulation channel for liquid in order to array ejection ports in a high density in association with the circulation channel. The circulation channel is connected to a penetration supply path and a penetration recovery path that penetrate a substrate.

Abstract: The present invention provides a liquid ejecting module capable of performing stable ejection operation while circulating and supplying fresh ink to the vicinity of ejection ports arranged in high density. To achieve this, a liquid ejecting module includes an element arranged face in which a plurality of ejecting elements are arranged, a circulation flow path including a supply flow path which supplies liquid to a pressure chamber and a collection flow path which collects liquid from the pressure chamber, and a liquid delivery mechanism provided in the circulation flow path for circulating liquid in the pressure chamber. The liquid delivery mechanism is located lower than the element arranged face.

Abstract: In one example in accordance with the present disclosure a device for coalescing a frothy fluid is described. The device includes a housing and a filter disposed within the housing. An outside surface of the filter is separated from an inside surface of the housing by a gap. The filter is sealed against the housing to enclose the gap. An inlet port of the device drives incoming frothy fluid through the gap. An outlet port of the device drains liquid coalesced as bubbles in the frothy fluid dissipate and an air vent allows air to escape the gap.