Abstract: A refillable ink cartridge has an ink port for both supplying ink to a printhead and refilling the cartridge. An ink reservoir has ink absorbent material disposed therein with a main fluid channel extending between the ink port and the ink absorbent material. A bypass fluid channel with a control valve extends between the main fluid channel the said absorbent material. The bypass control valve is configured to allow ink to flow through the bypass fluid channel only when refilling the ink reservoir via the ink port.

Abstract: Described are new custom postage printing stocks, coating compositions, processes for preparing and utilizing these and resulting postage products. Disclosed ink formulations comprise: invisible fluorescent dye and/or pigment (preferably red-fluorescent dye), which is fluorescent in the range of 580 to 640 nm when illuminated with light at 254 nm; water-soluble binder; substrate penetrant, fluorescence stabilizer; substrate anticurl agent and water. The inks, when coated on substrates and dried, can improve the quality and color of images printed as compared to images printed without the aid of the invention.

Abstract: Provided herein is a liquid container including a liquid containing portion for containing liquid; and a detection portion which outputs a detection signal having a frequency of about 1/odd number of a frequency of a detection signal output when the amount of liquid contained in the liquid containing portion is equal to or less than a predetermined amount, when the amount of liquid contained in the liquid containing portion is greater than the predetermined amount.

Abstract: A recording apparatus having a transporting unit to transport a target, a recording unit recording on the target transported, a fluid supply adjusting unit to switch an operation between supply and non-supply of fluid from a fluid supply source, a drive source for the transporting unit and the fluid supply adjusting unit, a control unit to control the drive source, a jam detection unit to detect a jam of the target, a storage unit to retain jam data, a determining unit configured to determine the presence or absence of occurrence of the jam, wherein the control unit carries out a first control or a second control according to the detection of the jam when the power is turned OFF and carries out a third control or a fourth control according to the state of occurrence of the jam when the power is turned ON.

Abstract: An ink tank includes a first channel extending in the form of a groove on an external part of the tank in connection with an atmospheric communicating port. The tank also includes a second channel which branches off from the first channel and joins this again and which has a capillary force greater than that of the first channel. Even when some amount of ink has flowed out of the atmospheric communicating port, the capillary force generated in the second channel acts to hold the ink in the channel. Additionally, even when ink is stored in the second channel, the first channel is not closed, and the pressure in the tank is therefore kept in equilibrium with the atmospheric pressure. Therefore, there is little possibility that the ink in the second channel will be pushed out even when the ambient temperature changes.

Abstract: A wave-guide having an isolated coupling interface. In one variation, a constant negative pressure is maintained around the area surrounding the wave-guide. Coupling liquid may be directed to the tip of the wave-guide to provide the coupling interface between the wave-guide and a source fluid container. The suction from the constant negative pressure may remove excess coupling liquid and isolating the coupling liquid to the area around the tip of the wave-guide. The wave-guide assembly may also include mechanisms for adjusting the volume of fluid at the tip of the wave-guide. When the position of the wave-guide is displaced, fluid compensation mechanism may increase or decrease the volume of fluids at the distal end of the wave-guide to maintain proper coupling between the wave-guide and the source fluid container. Methods for utilizing negative pressure around the distal end of the wave-guide to isolate the coupling liquid are also described.

Abstract: A sealing device is disclosed that includes a latching feature configured to facilitate latching of the sealing device to a fluid reservoir; a first region configured to seal or substantially seal a fluid-discharge port on the fluid reservoir from fluid loss when the sealing device is latched to the fluid reservoir; and a second region configured to protect a circuit device on the fluid reservoir when the sealing device is latched to the fluid reservoir. Accordingly, the presently disclosed sealing device provides an effective solution to not only sealing the fluid-discharge ports on the fluid reservoir, but also protecting the circuit device.

Abstract: A method of filling an ink tank with ink for use with a printer, the method includes the steps of providing or obtaining an ink tank which ink tank includes both an ink supply port and an ink fill port that are enclosed within a rim that extends outwardly from the ink tank; providing an ink fill tube connected to a source of ink; connecting the ink fill tube to the ink fill port; flowing ink from the source of ink through the ink fill tube to the ink tank; removing excess air from the ink tank; and withdrawing the ink fill tube from the ink fill port.

Abstract: An ink-jet printer, including: a recording head which ejects ink onto a recording medium; a main tank which stores the ink to be supplied to the recording head; a sub tank configured to be extended and contracted in a vertical direction and including first and second ink flow holes provided in a lower portion of the sub tank, such that the first ink flow hole communicates with the recording head while the second ink flow hole communicates with the main tank; and a communication tube which is connected, at one of opposite ends thereof, to the second ink flow hole and which has, at the other of opposite ends thereof, an opening positioned in an inside space of the sub tank, whereby the second ink flow hole and the inside space of the sub tank communicate with each other via the communication tube, wherein the communication tube is configured such that the opening of the communication tube is displaced downwardly in accordance with the contraction of the sub tank.

Abstract: Compositions for use in ink jet printing onto a substrate comprising a water based dispersion including metallic nanoparticles and appropriate stabilizers. Also disclosed are methods for the production of said compositions and methods for their use in ink jet printing onto suitable substrates.

Abstract: A condensate recovery system for an ink jet printer includes an ink reservoir and a condenser. The condenser is in fluid communication with the ink reservoir and is adapted to receive exhaust from the ink reservoir and condense solvent from the exhaust. The condenser includes a fluid inlet for receiving the exhaust from the fluid reservoir, a condensing volume in fluid communication with the inlet, a vent in fluid communication with the condensing volume for venting air from the condenser and a fluid outlet for removing condensed solvent from the condenser and returning the condensed solvent to the ink reservoir. A valve is in fluid communication with the condenser fluid outlet and the fluid reservoir. The valve is operable to open and close to control flow of condensed fluid from the condenser to the fluid reservoir.

Abstract: A printing system is provided having a printhead, a media drive mechanism for driving media to the printhead for printing, and a media cartridge for supplying the media. The cartridge has a rotatable core for a roll of media and a media delivery arrangement having an opening in the cartridge. The media delivery arrangement is arranged to enable a roller of the print media drive mechanism to contact a wound portion of the roll of media so as to feed an unwound portion of the media from the roll to the printhead on demand operation of the roller on the wound portion.

Abstract: A printing-fluid container includes a reservoir having a leading surface with an outer perimeter. Redundant interface elements are recessed from the leading surface interior the outer perimeter.

Abstract: A liquid ejection apparatus having a liquid ejection head and a switching device is provided. The switching device includes a first supply passage through which first liquid flows, a second supply passage through which second liquid different from the first liquid flows, a head supply passage, a first ON-OFF valve that selectively opens and closes the first supply passage, a second ON-OFF valve that selectively opens and closes the second supply passage, a rotary cam, and an actuator. The head supply passage extends from a joining point between a downstream end of the first supply passage and a downstream end of the second supply passage to the liquid ejection head. The actuator is driven by the cam in such a manner that the first ON-OFF valve and the second ON-OFF valve are selectively opened and closed. The actuator operates the first and second ON-OFF valves in such a manner that one of the first and second ON-OFF valves becomes open and the other becomes closed.

Abstract: A fluid ejection device ejecting a fluid, the fluid ejection device includes: a fluid ejection unit; a main chassis case; a fluid-containing pack; a container case; and a plurality of holders. The fluid ejection unit ejects a fluid onto an ejection target. The main chassis case houses the fluid ejection unit. The fluid-containing pack contains a fluid for ejection. The container case houses the fluid-containing pack. The plurality of holders is disposed inside the container case. Each of a plurality of holders includes an incline panel that inclines toward the inside base plane, and the fluid-containing pack rests on the incline panel.

Abstract: An ink cartridge includes an ink chamber configured to store ink. The ink chamber is defined by at least one wall, and an air layer is formed in the ink chamber between a surface of the ink and a portion of the wall. The ink cartridge also includes a pump for selectively supplying air to the air layer and to draw air from the air layer. An ink supply system includes a first ink tank including an ink chamber defined by at least one wall, and an air layer is formed in the ink chamber between a surface of the ink and a portion of the wall. The ink supply system also includes a pump for selectively supplying air to the air layer and to draw air from the air layer, and a second ink tank in fluid communication with the first ink tank.

Abstract: Various embodiments related to curable printing fluids are disclosed. One example embodiment provides a curable printing fluid composition for a thermal fluid ejection device, the composition comprising a curable liquid-phase monomer, a substantially nonaqueous volatile driver fluid capable of being vaporized by a thermal fluid ejection printhead, an initiator, a phosphate ester resistor protectant, and a colorant comprising a dye.

Abstract: The present invention provides an ink jet printing apparatus capable of improving reliability of an electrical connecting portion between a carriage side and head cartridge side. When an ink tank is mounted on a head cartridge, a hook of a set lever is obstructed to be operated in a lock releasing direction by a restricting surface of the ink tank. This prevents the head cartridge from being removed from the carriage, and maintains an electrical connecting condition between the carriage and the head cartridge. Therefore, for removing the head cartridge, it is necessary to remove the ink tank.

Abstract: An ink container usable for recording heads different in flow rate without being affected by a pigment particle concentration of ink held in an ink supply portion is provided. In correspondence with a size of a filter of a recording head used, ink non-conducting areas are provided to a press-contact member, whereby movement of settled ink remaining in the press-contact member is blocked. As a result, common use of the ink container with respect to the recording heads different in flow rate is realized.

Abstract: A printing device includes a supply of colorant and a mechanism. The mechanism is receptive to removable insertion of a first print cartridge and a second print cartridge. One of the first print cartridge and the second print cartridge can be inserted into the mechanism at any given time. The first print cartridge at least ultimately uses the supply of colorant of the printing device to form the images on the media. The second print cartridge has a self-contained supply of colorant that is exclusively used in lieu of the supply of colorant of the printing device to form the images on the media.

Abstract: An ink refill cartridge is provided for refilling an ink ejection printhead cartridge. The refill cartridge includes a receptacle configured to receive a collapsible ink container storing ink. The receptacle is further configured to engage with an ink refill port of the printhead cartridge. A handle assembly can be slidably mounted relative to the receptacle so that, when the handle assembly and receptacle are compressed between the printhead cartridge and a hand, the handle assembly can slide along the receptacle and collapse the ink container to cause the stored ink to be supplied through the ink refill port. In one embodiment, the receptacle defines one or more protrusions configured to engage with complementary recesses of the handle assembly so that the handle assembly will not slide along the receptacle until a threshold compression force has been applied by the hand.

Abstract: A remaining amount of liquid contained in each of a plurality of cartridges is detected. When a small remaining amount is detected, information relating to the cartridge with the small remaining amount is transmitted. A substitute cartridge is determined based on the transmitted information, and liquid ejection data for the substitute cartridge is generated. An expected consumption amount of liquid contained in the substitute cartridge is calculated based on the liquid ejection data. A difference between the remaining amounts of liquid in the cartridge with the small remaining amount and in the substitute cartridge is calculated based on the expected consumption amount and information relating to the remaining amount of liquid. It is determined whether the calculated difference is equal to or lower than a predetermined value.

Abstract: An ink cartridge attachment/detachment device that loads an ink cartridge into a main body of a recording apparatus by sliding the ink cartridge into includes an ejection lever and an urging force adjustment device. The ejection lever contacts the ink cartridge and urges the ink cartridge using an urging force of an urging device in an ejecting direction in which the ink cartridge is ejected when the ink cartridge is loaded or when the ink cartridge is ejected. The urging force adjustment device changes a ratio of a force with which the urging device urges the ejection lever in a pivotal direction in which the ejection lever is pivoted to a force with which the urging device urges the ejection lever in a radial direction about a pivotal fulcrum of the ejection lever.

Abstract: An improved fluid supply tank for a micro-fluid ejection head and method for improving operation of a micro-fluid ejection device. The fluid supply tank has a body portion for holding a fluid to be ejected. The body portion includes a fluid exit port on an exit end thereof and a cover on an opposing end thereof. An internal vent conduit is disposed in the tank between the exit end and the cover for air removal adjacent to the exit port.

Abstract: A refill unit for an ink reservoir that has an inlet valve for receiving refill ink and an outlet valve for fluid communication with an inkjet printhead. The refill unit has a docking assembly for docking with the ink reservoir, an ink bag for storing ink, a valve actuator configured to close the outlet valve of the ink reservoir and subsequently open the inlet valve upon docking the docking assembly with the ink reservoir, an ink delivery outlet assembly for establishing fluid communication between the ink bag and the ink reservoir upon docking the docking assembly with the ink reservoir and, constrictor actuators for increasing pressure in the ink bag upon docking the docking assembly with the ink reservoir, and reducing pressure in the ink reservoir upon disengagement of the docking assembly and the ink reservoir.

Abstract: An ink refill unit is provided for refilling a printer ink cartridge unit. The ink refill unit includes a base assembly that has ink refilling components and outlets for engaging a docking member connected to the ink storage compartments. Each outlet corresponds to a respective type of ink with only one of the outlets working. The ink refilling components include a syringe assembly coupled in fluid communication with the working outlet. A lid assembly covers the ink refilling components.

Abstract: An ink jet printer is provided with an ink jet head, an elastically deformable sub-ink tank, an actuator, an ink quantity detection device, controller, and a main ink tank which communicates with the sub-ink tank. The actuator performs a predetermined action, such that the actuator applies a pushing force to the sub-ink tank and then releases the pushing force. The ink quantity detection device detects whether an ink quantity within the sub-ink tank is less than a first value. The controller controls the actuator to perform the predetermined action in a first case where the ink quantity within the sub-ink tank is less than the first value. The controller controls the actuator such that the actuator performs the predetermined action in a second case where the ink quantity within the sub-ink tank is more than the first value and a predetermined condition is satisfied.

Abstract: There are provided a printing apparatus and printing method capable of collecting unwanted ink mist and achieving high-quality printing by fine ink droplets. According to the method, the charges of a printing medium are removed prior to printing, and an ink mist collecting unit having an electrode of a positive polarity is employed. Floating ink mist is collected such that ink mist generated from discharged ink droplets and negatively charged is moved toward the ink mist collecting unit by the electrostatic force.

Abstract: A method of priming a printhead. The method includes the steps of: (i) providing a printhead having a plurality of nozzles for ejection of ink, an ink inlet and an ink outlet; (ii) providing an ink chamber having an outlet port connected to the ink inlet via an upstream ink line, the ink chamber having an inlet port controlled by a valve; (iii) priming the printhead by pumping ink from the ink chamber, through the printhead and into a downstream ink line connected to the ink outlet; and (iv) opening the valve if a level of ink in the chamber falls below a predetermined first level and replenishing with ink from an ink reservoir when the valve is open.

Abstract: An inkjet printer including (1) a printhead for ejecting ink onto a sheet, (2) a plurality of main tanks, each holding ink and having a height dimension that is relatively small compared with its other dimensions, (3) a plurality of sub-tanks which supply ink to the printhead, and are configured to connect to the plurality of main tanks respectively so that ink can be supplied from the main tanks to the sub-tanks and (4) a mounting member into which the main tanks are detachably mounted, the main tanks being stacked on each other in a vertical direction when the main tanks are mounted in the mounting member. Wherein the main tanks are stacked on each other such that their height dimensions are arranged to substantially coincide with the vertical direction.

Abstract: There is provided an ink pack, which is provided with a film bag that has a sealed chamber therein and is formed of a flexible film member having a form of a bag, and a tap that has an ink flow channel therein and is welded to one edge of the flexible film member. In this structure, a film welding part, in which opposed inner surfaces of the flexible film member are welded to each other, is formed at least along the one edge of the flexible film member. A tap welding part, in which a side of the tap is welded to opposed inner surfaces of the flexible film member, is formed in the one edge of the flexible film member. Further, a welding width of a side of the film welding part adjacent to the tap welding part is larger than a welding width of a side of the tap welding part adjacent to the film welding part.

Abstract: An ink-jet head of the present invention includes a discharge valve that includes a valve chamber and an opening/closing mechanism. The valve chamber has an ink supply port through which ink is supplied from outside, an outside discharge port through which ink is discharged to outside, and a reservoir discharge port through which ink is discharged to an ink reservoir. The opening/closing mechanism is able to selectively take either one of a state where a passage is formed between the ink supply port and the outside discharge port while access between the ink supply port and the reservoir discharge port is blocked and a state where a passage is formed between the ink supply port and the reservoir discharge port while access between the ink supply port and the outside discharge port is blocked.

Abstract: An ink jet print head comprises a print head matrix having nozzles for drop? formation and release opening onto a print side surface of said matrix and individual local micro-reservoirs, each associated with the local nozzles. The reservoirs open onto an ink supply surface of the matrix and are supplied with ink by capillary action from wiping or spraying of ink regularly refreshed onto the ink supply surface. The design allows for a print head that substantially covers the area of the print media and thus permits stationary printing. Printing is rapid and the ink supply arrangement allows for reliable ink supply at atmospheric pressure.

Abstract: A print ink transport mechanism includes a first ink pipe for transporting a first colored ink, and a second ink pipe for transporting a second colored ink, a rotary module including a first protruding component with a first cavity disposed in a position corresponding to the first ink pipe, and a drive means connected to the rotary module for driving the rotary module. When the drive means drives the rotary module to rotate to a first position, the first protruding component presses the second ink pipe, and the first ink pipe passes through the cavity on the first protruding component, so that the second ink pipe is unable to transport the second colored ink and the first ink pipe is able to transport the first colored ink.

Abstract: A remaining amount detecting step is performed by a first controller, in which a remaining amount of a liquid contained is detected for each of a plurality of cartridges containing the liquid to be ejected from nozzles. An information transmitting step is performed by the first controller, in which when the remaining amount of the liquid in at least one of the cartridges is detected to be equal to or lower than a predetermined amount, information relating to a cartridge with a small remaining amount is transmitted, the cartridge with the small remaining amount corresponding to the at least one of the cartridges.

Abstract: An internal filter includes a lower substrate and an upper substrate. Fluid passages are formed by etching grooves into the surface(s) of the upper and/or lower substrates, and/or in one or more intermediate layers. The filter pores extending between the fluid passages are formed by etching second grooves that fluidly connect the fluid passages. Two or more sets of the one or two intermediate layers can be implemented to provide additional filter passages and/or pores. Each set can be connected to a separate fluid source and/or a separate microfluidic device. In another internal filter, the inlet and outlet passages and the filter pores are formed on the same upper or lower substrate. The inlet and outlet passages are partially formed in a first step. In a second step, the inlet and outlet passages are completed at the same time that the filter pores are formed.

Abstract: A protection device for an ink cartridge storage unit having an ink inducing member is provided with a supporting beam, a funnel member having a narrow conical end and a wide conical end, the narrow conical end being connected to a distal end of the supporting beam, and an elastic cap arranged inside the funnel member. The elastic cap seals the ink inducing member in an engaged state. In the course of removing the protection device from the ink cartridge storage unit, the protection device can be lifted in the upper direction. The upper rim of the wide conical end makes contact with the rear surface of the ink cartridge storage unit in due course. As the protection device is lifted further, the part of the elastic cap is constricted, and the upper rim of the wide conical end functions as the fulcrum for the leverage.

Abstract: An ink cartridge includes a case which includes a first case member. The first case member includes a first wall, and the first wall includes an air intake portion extending from the first wall in a predetermined direction. The case also includes a second case member which is connected to the first case member, and the first case member and the second case member define an ink chamber therein. The second case member includes a second wall which is opposite to the first wall, and a support member connected to an interior surface of the second wall. The ink cartridge also includes a movable member which is connected to the support member.

Abstract: An inkjet printhead assembly includes an elongate ink feed structure defining a plurality of longitudinally extending ink supply passages and a plurality of spaced apart sets of ink outlets in fluid communication with respective ink supply passages. A plurality of printhead modules are releasably attached to the ink feed structure. Each printhead module is in fluid communication with a respective set of ink outlets, and each printhead module includes an elongate printhead chip configured to eject ink supplied from the ink feed structure. Each printhead chip is obliquely angled with respect to a longitudinal axis of the ink feed structure. A capping arrangement configured to cap nozzles on each printhead chip.

Abstract: A liquid container of the invention has a container body including a storage space and a liquid feed port and a liquid injection port which are installed on the container body. The liquid feed port is structured so as to interconnect the storage space and the liquid ejecting head with each other, when the liquid container is mounted on a liquid ejecting unit. The liquid injection port is structured so as to interconnect the storage space of the container body and a liquid tank of a stationary unit with each other, when the liquid ejecting unit is united with the stationary unit. The invention provides a liquid container effective in realization of a liquid ejecting apparatus which can meet two needs for executing a large amount of printing and transporting when necessary.

Abstract: The present invention comprises at least a reservoir tank which stores an ink supplied from an ink supply section, and an ink chamber which distributes and supplies the ink supplied from the reservoir tank to each recording head in a recording head group, wherein the reservoir tank maintains a predetermined negative pressure state with respect to the ink in a plurality of ink nozzles of each recording head through the ink chamber, and the ink chamber supplies the ink with an uniformed pressure loss in ink supply paths to each recording head in the recording head group.

Abstract: A printhead assembly is disclosed. The printhead assembly comprises a printhead formed from a silicon substrate, and a support member. The support member comprises a core element defining a plurality of ink reservoirs and a multilayer shell. Each ink reservoir is in fluid communication with the printhead. The multilayer shell is formed around at least part of the core element, and has an effective coefficient of thermal expansion which is comparable to that of silicon.

Abstract: A remaining-liquid-amount apparatus for displaying an amount of conductive liquid (ink) remaining in a container includes electrode units which are arranged along a direction in which the liquid level falls when the amount of liquid in the container decreases and which conduct current when the electrode units are in contact with the liquid, a voltage source (pulse generator) which applies a voltage to the electrode units, a liquid detector (DFFs) which detects the presence/absence of the liquid at positions of the electrode units on the basis of whether or not the electrode units conduct current when the voltage is applied by the voltage source, and a remaining-liquid-amount display unit (LEDs) which displays, in steps, the amount of liquid remaining in the container on the basis of the detection result of the presence/absence of the liquid at positions of the electrode units obtained by the liquid detector.

Abstract: An ink jet recording apparatus comprising a color ink container having a capacity V1 accommodating therein a solvent polymerizable in the presence of an acid and a colorant, a reaction liquid container having a capacity V2 (V2<V1) accommodating therein a reaction liquid comprising a solvent, and a photo-acid generating agent capable of generating an acid when irradiated with light, a stirring container mixing the color ink and the reaction liquid at a mixing ratio of S1:S2 (the color ink:the reaction liquid) to prepare a recording ink, a color ink supply means feeding the color ink to the stirring container, a reaction liquid supply means feeding the reaction liquid to the stirring container, an ink jet recording head ejecting the recording ink to a recording medium, and a supply tube feeding the recording ink to the recording head.

Abstract: An applying amount to an applying medium is controlled in a liquid applying apparatus. Specifically, before driving a pump, a circulation speed decision processing (S3) is carried out. According to this decided speed, a speed of the circulation flow generated in a liquid holding space is controlled in a pump operating process (S4). This controls a pressure in the liquid holding space. As a result, a state of flow of the applying liquid at a contact member of a liquid holding member in contact with the applying roller is changed, and an amount of the applying liquid adhering to an applying roller and going out of the contact portion is controlled. This can control the amount of the applying liquid to be applied to the applying medium.

Abstract: An ink-jet printer, including an ink-jet recording head having an ink inlet into which an ink inflows; an ink tank which stores the ink and which has an ink outlet from which the ink outflows and additionally has an air inlet into which an air inflows; a first connector having an ink supply passage which communicates, at one end thereof, with the ink outlet of the ink tank and communicates, at an other end thereof, with the ink inlet of the ink-jet recording head; an air-pressure regulating device which has an air outlet from which the air outflows and additionally has a second connector having an air supply passage which communicates, at one end thereof, with the air outlet and communicates, at an other end thereof, with the air inlet of the ink tank; an amount obtaining portion which obtains at least one of (a) an amount of the ink present in the ink tank and (b) an amount of the air present in the ink tank; and an operation control portion which controls, based on the amount obtained by the amount obtainin

Abstract: A sealing structure includes a first and a second passage-forming member, and an elastic member interposed between the surfaces and including: a plate-like body which has an inlet-side and an outlet-side surface and through which through-holes are perpendicularly formed, a first protruding portion protruding from one of the inlet-side and outlet-side surfaces in an axial direction of the through-holes to contact the first passage-forming member and a second protruding portion axially protruding from the other surfaces toward the second passage-forming member. The inner circumferential surface of one of the first protruding portion and those of the corresponding second protruding portion and through-hole are continuous to form a smooth surface.

Abstract: Embodiments provide an ink reservoir system. The ink reservoir system includes a housing configured to hold ink and comprising a first opening and a second opening. The ink reservoir system further includes a fluid connector that traverses the first opening and communicates ink from inside the housing to a refilling system. The ink reservoir system further includes an interconnection region comprising a needle, where the needle traverses the second opening and is configured to mate with a septum cap on an ink bottle. When the ink bottle is placed within the second opening the needle punctures the septum of the septum cap and allows the ink to flow from the bottle into the interior of the housing.

Abstract: A liquid droplet ejection apparatus includes an ejection head having an ejection surface with an ejection outlet for ejecting a droplet of a functional liquid, a first container connected to the ejection head via a flow path to form a first space for containing the functional liquid that is to be supplied to the ejection head, a second container for containing the first container to form a second space between the first and the second containers, a pressure regulator for adjusting a pressure of the second space, and a temperature regulator for adjusting a temperature of the functional liquid of the first container, at least a part of the first container being made of a film deformed in accordance with an operation of the pressure regulator.

Abstract: In ink supply to a print head including: a common liquid chamber having an ink flow-in port into which the ink flows, and an ink flow-out port for returning the ink; discrete liquid chambers for each supplying the ink to a ejection port from the common liquid chamber; and gas-liquid separation members for each making only gas flow out from the discrete liquid chamber, wherein the pressure adjustment adjusts pressure relations of the pumps so that a relationship between a circulation pressurization pump, a circulation suction pump, and an air suction pump are provided.