Abstract: Example implementations relate to printer valve seals. In some examples, a printer valve to receive print substance from a fluid conduit and transmit the received print substance to a print cartridge can include a valve neck having a first seal member to provide a seal between the valve neck and an inlet of the print cartridge, and an actuator having a second seal member to form a seal within a valve body of the printer valve while the valve neck is detached from the inlet of the print cartridge.

Abstract: A dryer includes a heater configured to heat an object to dry the object, a plurality of collection devices configured to collect a liquid generated by liquefication of condensed vapor in the dryer, a drainage tube configured to drain the liquid from each of the plurality of collection devices, a pump configured to feed the liquid through the drainage tube, a switch configured to switch a connection between the plurality of collection devices and the switch, and a pressure sensor configured to measure a pressure between the switch and the pump.

Abstract: A print module including: a cradle having a longitudinal cavity; an elongate printhead carrier positioned in the longitudinal cavity, the printhead carrier having a first end and a second end, the printhead carrier being pivotable relative to the cradle about a pivot axis the second end; a supply assembly slidably movable relative to the cradle along an axis perpendicular to a longitudinal axis of the printhead carrier, the supply assembly having ink couplings for fluidic connection to a printhead received in the printhead carrier; and a mechanical linkage interconnecting the first end of the printhead carrier and the supply assembly. Reciprocal movement of the supply assembly moves the printhead carrier between a tilted position and a non-tilted position.

Abstract: There is provided a tank including a casing provided with first and second walls; first and second chambers; an atmosphere open port; a first communicating channel; a second communicating channel; a liquid inlet port; a first communicating port; a second communicating port; a liquid inflow port; and a liquid outflow port. Under a condition that the tank is in a posture in which the first wall constructs an upper portion of the tank and that the second wall constructs a lower portion of the tank in a vertical direction and that a maximum amount, of the liquid, storable in the tank in an usable posture of the tank, is stored in the first and second chambers, the first and second communicating ports are located at a position above a liquid surface of the maximum amount of the liquid.

Abstract: For an image forming apparatus including first and second storage chambers, an inequality expression of “R2>A×R1” is met. R1 is a sum of a passage resistance value obtained by flowing air through a first air communication portion and a passage resistance value obtained by flowing liquid through a supply portion. R2 is a passage resistance value obtained by flowing air through a second air communication portion. A is a cross-sectional area ratio obtained by dividing a first average cross-sectional area of a first space of the first storage chamber taken along a plurality of horizontal planes by a second average cross-sectional area of a second space of the second storage chamber taken along the plurality of horizontal planes. The first space contains at least a portion adjacent to the supply portion and accumulating the liquid. The second space contains at least a portion accumulating the liquid.

Abstract: Herein is disclosed an ink storage unit. The ink storage unit may comprise first and second reservoirs, each having a variable internal volume; a transfer system to transfer ink between the first and second reservoirs such that as ink is transferred from the first reservoir to the second reservoir, the internal volume of the first reservoir decreases and the internal volume of the second reservoir increases.

Abstract: A controller sets an order condition requiring that one of a latest index value and a current timing reach corresponding one of a reference index value and a reference timing. The order condition is set so that a first cartridge is delivered to a predetermined destination at a first timing. The first cartridge is expected to be out of a printing agent while a first tank is expected to still accommodate the printing agent at the first timing. The controller transmits, in response to determining that a second cartridge is expected to be out of a printing agent while a second tank is expected to still accommodate the printing agent at the first timing, an order command instructing to order the first cartridge and the second cartridge to a relevant device after the order condition is satisfied.

Abstract: A liquid ejection apparatus comprises a carriage that includes a liquid ejection head and that moves inside a predetermined moving range, a plurality of liquid containers mounted on the carriage, the plurality of liquid containers including liquid refill ports respectively, an exterior member that covers the moving range, the exterior member including an opening configured to have a liquid outlet portion of the liquid refilling container be inserted therein, a selection information receiving portion that receives an input of a selected target liquid container, among the plurality of liquid containers, in which refilling of the liquid is to be performed, and a control unit that, using selection information that the selected information receiving portion has received, moves the carriage so that the liquid refill port of the target liquid container faces the opening.

Abstract: A liquid container is configured to be fitted to the carriage of a liquid consumption device including the carriage where a head is provided and that jets, while making the carriage reciprocate, a liquid from the head so as to consume and stores the liquid to be supplied to the head. The liquid container includes: a liquid storage portion configured to store the liquid inside; an undulation reduction portion provided in the liquid storage portion and including a wall surface configured to reduce the undulation of the liquid and be directed in the direction of gravity in a fitting posture where the liquid container is fitted to the carriage; and a support portion configured to support the undulation reduction portion such that the undulation reduction portion is allowed to swing with the liquid and that the movement of the wall surface along the direction of gravity is restricted.

Abstract: An inkjet printing apparatus includes: a print head provided with an ejection opening surface; a tank; a supply flow path; a collection flow path; an intra-tank vacuum pump to reduce pressure inside the tank; and a control unit. The control unit performs a first operation and a second operation, the first operation causing the intra-tank vacuum pump to operate while a collection drive valve is closed, so as to pull out ink in a flow path which extends from the ejection opening to the supply flow path into the tank, the second operation causing the intra-tank vacuum pump to operate while a supply drive valve is closed, so as to pull out ink in a flow path which extends from the ejection opening to the collection flow path into the tank.

Abstract: The subject matter discloses a fluid cartridge comprising a container to hold a predetermined volume of fluid, and a lid for closing the container. The lid comprises a valve-recess and an inlet valve in the valve-recess to transfer a volume of a replacement fluid in the container for replacing depleted volume of fluid in the container. A rocker valve is pivoted in the valve-recess to cover the inlet valve during a regulation phase. The rocker valve is to open the inlet valve during an actuation phase to allow the replacement fluid to enter the container. A spring element is movably disposed on the rocker valve to control actuation of the rocker valve for opening and closing the inlet valve. The spring element slides across the rocker valve, from a regulation zone of the rocker valve to an actuation zone of the rocker valve, to open the inlet valve.

Abstract: A liquid circulation device includes a first liquid discharge head to discharge a liquid, a first supply channel to supply the liquid to the first liquid discharge head, a first collection channel to collect the liquid from the first liquid discharge head, a second liquid discharge head to discharge the liquid and disposed higher than the first liquid discharge head, a second supply channel to supply the liquid to the second liquid discharge head, a second collection channel to collect the liquid from the second liquid discharge head, a supply-side fluid restrictor disposed in the first supply channel to make a fluid resistance value of the first supply channel greater than a fluid resistance value of the second supply channel, and a collection-side fluid restrictor disposed in the second collection channel to make a fluid resistance value of the second collection channel greater than a fluid resistance value of the first collection channel.

Abstract: A liquid supplying device includes a tank; and a cartridge configured to be attached to the tank and having a first storage chamber configured to store liquid. The cartridge is formed with a communicating opening in communication with the first storage chamber. The tank has a second storage chamber configured to store the liquid, a liquid passage, a gas passage, a joint, an outer wall, an inner wall, an air communication portion, and a narrow-width portion. The liquid passage is in communication with the second storage chamber and has a first vertical portion. The gas passage has a second vertical portion. The first vertical portion, the second vertical portion, and the air communication portion are arranged in this order in the first direction and a direction away from the fifth end portion.

Abstract: A liquid ejection apparatus includes an ejection port ejecting a liquid, a pressure chamber storing the liquid, an element generating energy for ejecting the liquid in the pressure chamber, first and second tanks which can store the liquid, a flow passage establishing communication between the first and second tanks through the pressure chamber, a switching unit switching a flowing direction of the liquid in the flow passage between a first direction from the first tank to the second tank and a second direction being opposite to the first direction, and a pressure compensation unit. When a pressure in a downstream side flow passage portion downstream of the pressure chamber has a predetermined pressure or below, the pressure compensation unit compensates for reduction in pressure in the downstream side flow passage portion by supplying the liquid to the downstream side flow passage portion.

Abstract: An inkjet printing apparatus includes a print head ejecting ink, a tank reserving ink to be supplied to the print head; and a joint unit being capable of connecting the print head and the tank to each other. The inkjet printing apparatus further includes a detecting unit detecting a position of the joint unit, which is moved by a drive source, with respect to the print head.

Abstract: The present invention has an object to provide an ink supply tube having an excellent stress crack resistance during sliding while having a high gas barrier property. According to the present invention, an ink supply tube is provided, which includes an inner layer contacting with an ink, an intermediate layer containing at least one layer, and an outer layer, wherein the intermediate layer is a gas barrier layer formed of an ethylene-vinyl alcohol copolymer resin, and an oxygen concentration within a circular region that has a diameter of 100 m and is centered at the gas barrier layer is 2 to 9 atm %.

Abstract: A low voltage threshold adjusting method is provided and includes the following steps: detecting whether a present voltage is lower than a low voltage threshold; detecting whether a present current exceeds a preset current threshold in response to that the present voltage is lower than the low voltage threshold; detecting whether a present temperature exceeds a preset temperature in response to that the present current exceeds the preset current threshold; checking whether a current state of charge (SOC) is higher than a preset SOC in response to that the present temperature does not exceed the preset temperature; and decreasing the low voltage threshold in response to that the current SOC is higher than the preset SOC.

Abstract: A liquid supply unit includes a pressure chamber configured to store the liquid, a first supply passage allowing communication between a liquid storage container and the pressure chamber, a second supply passage allowing communication between a liquid injection head and the pressure chamber, and a valve mechanism configured to operate according to a pressure state of the pressure chamber. The valve mechanism prohibits the inflow of the liquid from the first supply passage in a first state where the pressure chamber is within the range of a supply negative pressure, allows the inflow of the liquid from the first supply passage in a second state where the pressure chamber is at a pressure lower than the supply negative pressure, and releases the pressure in the pressure chamber in a third state where the pressure chamber is at a pressure higher than the supply negative pressure by a predetermined value.

Abstract: According to an aspect of the present invention, an inkjet printing apparatus includes a print head having an ejection opening surface on which ejection openings for ejecting ink are formed, a tank storing ink to be supplied to the print head, a supply flow path for supplying the ink from the tank to the print head, a collection flow path for collecting the ink from the print head to the tank, a supply pump provided in the supply flow path to supply the ink from the tank to the print head, a tank decompression pump which decompresses the inside of the tank, and a control unit which controls to drive the supply pump and the tank decompression pump to fill the collection flow path with ink.

Abstract: A liquid discharge device includes: a tank including a second liquid chamber connectable to a cartridge having a first liquid chamber storing a liquid; a head; and a controller configured to: discharge ink from the head based on a recording instruction; receive a second signal from a liquid level sensor when a position of the liquid level in the second liquid chamber is less than a predetermined position after the ink is discharged based on the recording instruction; after receiving the second signal, determine whether the cartridge is installed in an installation case; based on determining that the cartridge is installed in the installation case after receiving the second signal from the liquid level sensor, accept a maintenance process; and based on receiving the first signal from the liquid level sensor, perform the maintenance process.

Abstract: A liquid ejection apparatus includes an ejection port ejecting a liquid, a pressure chamber storing the liquid, an element generating energy for ejecting the liquid in the pressure chamber, first and second tanks which can store the liquid, a flow passage establishing communication between the first and second tanks through the pressure chamber, a switching unit switching a flowing direction of the liquid in the flow passage between a first direction from the first tank to the second tank and a second direction being opposite to the first direction, and a pressure compensation unit. When a pressure in a downstream side flow passage portion downstream of the pressure chamber has a predetermined pressure or below, the pressure compensation unit compensates for reduction in pressure in the downstream side flow passage portion by supplying the liquid to the downstream side flow passage portion.

Abstract: When printing is performed by ejecting an ink from heads of a printer, a CPU drives a pump and performs main tank-side circulation processing that circulates the ink in a main tank, a tank-side supply flow path, a first bypass flow path and a tank-side circulation flow path. Therefore, a printer can perform the main tank-side circulation processing without waiting for the end of the printing, and it is possible to quickly replenish the sub tank with the ink that decreases during the printing.

Abstract: A printer has a recording head, a relay container from which ink is supplied to the recording head, and to which the ink is supplied from a terminal container, a pressurizing pump and a depressurizing pump for supplying the ink from the terminal container to the relay container, and a control unit. The control unit calculates an estimated consumption amount of the relay container based on the amount of the ink supplied from the relay container to the recording head, and consumed and the amount of the ink supplied from the terminal container to the relay container, and calculates the amount of the ink supplied from the terminal container to the relay container using the minimum value of tolerance of a supply amount of the depressurizing pump.

Abstract: A liquid ejection head includes a plurality of pressurizing chambers connected to a plurality of ejection holes, a plurality of first individual flow paths connected to the plurality of pressurizing chambers, a plurality of second individual flow paths and a plurality of third individual flow paths, a first common flow path is connected in common to the plurality of first and plurality of second individual flow paths, and a second common flow path is connected in common to the plurality of third individual flow paths. The first and second individual flow paths are connected to the same pressurizing chamber, the first individual flow path is connected to the first common flow path in an opening end portion, compared to the second individual flow path. The first individual flow path is located opposite to a side where the ejection hole is open outward, compared to the second individual flow path.

Abstract: According to one embodiment, a fluid circulation apparatus includes a first tank to store fluid to be supplied to a fluid ejection head, a circulation path including a first flow path portion to provide fluid from the first tank to a supply port of the fluid ejection head, and a second flow path portion to return fluid from a collection port of the fluid ejection head to the first tank, a bypass flow path to connect the supply port to the collection port outside of the fluid ejection head, and a pressure sensor configured to measure pressure of the bypass flow path.

Abstract: According to one embodiment, a fluid circulation apparatus includes a first tank to store fluid to be supplied to a fluid ejection head, a circulation path including a first flow path portion to provide fluid from the first tank to a supply port of the fluid ejection head, and a second flow path portion to return fluid from a collection port of the fluid ejection head to the first tank, a bypass flow path that connects the supply port to the collection port outside of the fluid ejection head, and a buffer tank in the bypass flow path.

Abstract: A plug member is a plug member for covering a liquid injection port for injecting liquid to a liquid container portion of a liquid ejecting apparatus. The plug member includes an elastically deformable plug body, and a holding member that has a higher rigidity than the plug body and is for holding the plug body. The plug body includes a lid part for covering the liquid injection port and a barrel part extending from the lid part to the liquid container portion. The barrel part includes an end portion forming an opening at a side opposite to the lid part, and the holding member includes an engaging portion engageable with a shaft portion for rotating the holding member and a support portion that is provided at an engaging portion side of the end portion and is for supporting the end portion.

Abstract: A liquid ejecting apparatus includes: a liquid ejecting head including a liquid chamber which communicates with a nozzle; a supply flow path having a first end connected to a liquid supply source and a second end connected to the liquid chamber; a first circulation flow path having a first end connected to the liquid chamber and a second end connected to a first connecting section in the supply flow path; a supply pump provided in the supply flow path; a first pressure regulating valve provided between the first connecting section and the liquid ejecting head in the supply flow path; a second pressure regulating valve provided in the first circulation flow path; a circulation pump provided in the first circulation flow path and configured to circulate the liquid in a downstream direction; and an opening mechanism configured to forcibly open the first pressure regulating valve.

Abstract: A degassing apparatus includes a hollow fiber disposed on a supply path for a liquid, the hollow fiber including a gas permeable film permeable to dissolved gas in the liquid. The liquid is refluxed and brought into contact with a hollow interior or exterior of the hollow fiber, and a side of the hollow fiber not in contact with the liquid is depressurized to allow the dissolved gas in the liquid to permeate the depressurized side. The degassing apparatus further includes a clogging detector that detects clogging of the hollow interior of the hollow fiber caused by a component in the liquid.

Abstract: A liquid ejection head includes a recording element substrate including an ejection orifice for ejecting liquid, a pressure chamber provided with an energy generating element for generating energy used to eject liquid, a liquid supply path for supplying liquid to the pressure chamber, and a liquid collecting path for collecting liquid from the pressure chamber. The liquid supply path, the pressure chamber, and the liquid collecting path of the recording element substrate constitute a part of a circulation path in which liquid flows in the order mentioned. The flow resistance RIn of a flow path including the liquid supply path at a supply side is greater than the flow resistance ROut of a flow path including the liquid collecting path at a collection side.

Abstract: A diaphragm pump, a pump unit and an inkjet printer are provided. A housing of the diaphragm pump includes: a circular supporting groove portion for supporting a supported portion, and a passage opening for passing the supported portion to the supporting groove portion in a direction indicated by an arrow, where a shape of an outer edge of a cross section of the supported portion orthogonal to the direction indicated by an arrow is a shape of an outer edge of a circle in which a part of the outer edge is missing. A width of the passing opening at a coupling portion of the supporting groove portion and the passing opening is greater than or equal to a minimum width of the supported portion in the direction orthogonal to the direction indicated by the arrow and smaller than a maximum width of the supported portion in the relevant direction.

Abstract: A cartridge for storing and dispensing liquid for use with an inkjet printer includes a reservoir for storage of the liquid and an outlet for dispensing the liquid. The reservoir has a reinforcing structure and maintains a predetermined separation. The reinforcing structure separates an internal space of the reservoir into a first and second chamber. The reinforcing structure provides a fluid communication path between the chambers. The reinforcing structure has first and second portions of wall that partially defining the first and second chambers. The reinforcing structure has a wall partially defining the fluid communication path. The first and second portions of the wall have an arcuate profile. The first and second chambers have respective first and second widths. The fluid communication path has a third width which is less than the first or second widths.

Abstract: An ink jet printing device for customized printing of images on a face of a sheet material includes a frame with a top surface defining a running plane for a face of the sheet material, with guides transverse to the running direction of the material, a printing unit that can move along the guides and has a printing head therein, a supply source supplying the printing head with printing ink, and a movement system driving the printing unit along the guides. The printing head faces the running plane for depositing the ink on the sheet material, and the supply source includes a secondary reservoir, mounted in the printing unit and in fluid connection with the head, and a main reservoir in fluid connection with the secondary reservoir for refilling the secondary reservoir and maintaining the level of ink above a predetermined threshold value, ensuring supply to the printing head.

Abstract: There is provided a printer including: a liquid jetting head; a receiving section; a waste-liquid storing section; a connecting channel connecting the receiving section and the waste-liquid storing section; a pump; and a controller. The controller executes: printing; recovering nozzles; discharging the liquid, which is present in at least one of the receiving section and the connecting channel, to the waste-liquid storing section, after the recovering of the nozzles. Under a condition that there is no input of the print data before the discharging of the liquid, the controller executes the discharging of the liquid continuously after the recovering of the nozzles; under a condition that there is an input of the print data before the discharging of the liquid, the controller executes the printing after the recovering of the nozzles and then executes at least a part of the discharging of the liquid after the printing.

Abstract: A liquid ejection head includes a plurality of pressurizing chambers connected to a plurality of ejection holes, a plurality of first individual flow paths connected to the plurality of pressurizing chambers, a plurality of second individual flow paths and a plurality of third individual flow paths, a first common flow path is connected in common to the plurality of first and second individual flow paths, and a second common flow path is connected in common to the plurality of third individual flow paths. The first and second individual flow paths are connected to the same pressurizing chamber, the first individual flow path is connected to the first common flow path on a side of an opening end portion, compared to the second individual flow path. The first individual flow path is located opposite to a side where the ejection hole is open outward, compared to the second individual flow path.

Abstract: An inkjet recording apparatus of the present disclosure includes a recording head, a supply unit, a supply path, and a circulation path. The supply unit supplies liquid to the recording head. The liquid passes through the supply path to be supplied from the supply unit to the recording head. The liquid passes through the circulation path to return from the recording head to the supply unit. The supply path is provided with a supply coupling, and the circulation path is provided with a circulation coupling. Such part of the supply path as is located on an upstream side with respect to the supply coupling and such part of the circulation path as is located on a downstream side with respect to the circulation coupling are connected to each other by the bypass path which is switchable between a communicating state and a cut-off state.

Abstract: An inkjet recording apparatus to which a cartridge is attachable includes: a tank including a storage chamber and an outlet port; a recording portion including a damper chamber and a recording head; an ink passage; a pump configured to suck fluid in the damper chamber; a first switch; and a controller. After attachment of the cartridge, the controller is configured to perform an initial ink introduction process to supply the ink from the cartridge to the storage chamber. The initial ink introduction process includes: a first suction process to drive the pump for a first period of time in a state where the first switch is in a first state to allow ink in the storage chamber to be sucked toward the damper chamber; and after performing the first suction process, an open process to switch the first switch to a second state.

Abstract: A liquid ejecting apparatus includes a liquid ejecting portion configured to eject a liquid, a liquid supply flow path of which a downstream end portion is attachably/detachably connected to the liquid ejecting portion and through which the liquid is supplied from a liquid accommodating portion that accommodates the liquid to the liquid ejecting portion, an opening/closing valve capable of opening and closing the liquid supply flow path, an atmosphere communication path connected to the liquid supply flow path on a downstream side of the opening/closing valve, an atmosphere release valve capable of opening and closing the atmosphere communication path, a suction mechanism capable of sucking the liquid in the liquid ejecting portion, and a control device configured to control operations of the opening/closing valve, the atmosphere release valve, and the suction mechanism.

Abstract: An inkjet printing apparatus includes a tank in which ink is contained; a print head for ejecting ink supplied from the tank to perform print operation; a supply flow path for supplying ink from the tank to the print head; a collection flow path for collecting ink from the print head to the tank; and a pump provided in the supply flow path or the collection flow path. The pump is driven, during print operation, at a first speed to circulate ink within a circulation path including the tank, the supply flow path, the print head, and the collection flow path, and the pump is driven, from a start of the ink circulation until a lapse of predetermined time period, at a second speed which is faster than the first speed.

Abstract: Provided is a liquid ejection head comprising: an ejection opening row along a first direction; a pressure chamber with print-element; a passage communicating with the pressure chamber; a supply opening row along the first direction with supply openings extending in a second direction to supply liquid to the passage; a collection opening row along the first direction with collection openings extending in the second direction to collect a liquid from the passage; a first common supply passage along the first direction to supply a liquid to the supply opening row; a first common collection passage along the first direction to collect a liquid from the collection opening row; a first supply side communication opening extending in the second direction to supply a liquid to the first common supply passage; and a first collection side communication opening extending in the second direction to collect a liquid from the first common collection passage, wherein at least one of the first supply side communication openi

Abstract: There is provided an ink jet recording apparatus capable of preventing a user from erroneously performing an opening and closing operation of a valve in the supply of ink to a recording head from an ink tank.

Abstract: A liquid supplying device includes a tank; and a cartridge configured to be attached to the tank and having a first storage chamber configured to store liquid. The cartridge is formed with a communicating opening in communication with the first storage chamber. The tank has a second storage chamber configured to store the liquid, a liquid passage, a gas passage, a joint, an outer wall, an inner wall, an air communication portion, and a narrow-width portion. The liquid passage is in communication with the second storage chamber and has a first vertical portion. The gas passage has a second vertical portion. The first vertical portion, the second vertical portion, and the air communication portion are arranged in this order in the first direction and a direction away from the fifth end portion.

Abstract: There is provided a flexible membrane mechanism that is used in a valve mechanism, the flexible membrane mechanism including: a lid member; a flexible membrane that forms a space between the lid member and the flexible membrane; and a fluid flow path that communicates with the space, in which the flexible membrane is deformed such that a valve of the valve mechanism is opened and closed and includes a protrusion portion that becomes a projection toward the lid member and becomes a recess toward the opposite side of the projection.

Abstract: A recording apparatus includes a transfer body, an application unit configured to apply, onto the transfer body, an ink containing a color material, and a transparent transferability improving liquid for improving transferability of the ink onto a recording medium, a transfer unit configured to transfer an ink image formed on the transfer body onto the recording medium by bringing the transfer body into contact with the recording medium, a detection unit configured to detect a region in which the ink remains on the transfer body after the transfer unit transfers the ink image, and a determination unit configured to determine, based on a detection result of the detection unit, an amount of the transferability improving liquid to be applied to the transfer body by the application unit.

Abstract: Ink is supplied to a print head through a pressure compensation mechanism and a common collection flow path in a case where a predetermined differential pressure or higher between a pressure in a common supply flow path of the print head and a pressure in a common collection flow path of the print head is generated. As a result, liquid refillability for the liquid ejection head is improved while retaining a liquid circulating function in the liquid ejection head so as to stabilize a liquid ejecting state in the liquid ejection head.

Abstract: A liquid jetting apparatus includes individual channel rows each formed by individual channels aligned in a first direction and including nozzles respectively, the individual channel rows being arranged in a second direction orthogonal to the first direction, first manifolds each extending in the first direction and connected to the individual channels, the first manifolds being arranged in the second direction, and at least one second manifold extending in the first direction and connected to the individual channels. First connecting ports are formed in end portions, of the first manifolds, on one side in the first direction and open on one side in a third direction orthogonal to both the first direction and the second direction. A second connecting port is formed in an end portion, of the second manifold, on the one side in the first direction and open on the one side in the third direction.

Abstract: A tank includes: a first surface which extends in a first direction, which defines a liquid storage chamber, and which has an inlet for injecting the liquid into the liquid storage chamber; and a pair of second surfaces which extend in a second direction intersecting the first surface and which define the liquid storage chamber, wherein at least a part of each of the second surfaces is composed of a film, and at least one of the pair of second surfaces has a first area which has a first length in the second direction from the first surface and which is composed of a wall having a rigidity higher than that of the film.

Abstract: A fluid reservoir (101) includes a number of electrode pairs disposed within the fluid reservoir. Each of the electrode pairs includes a number of sensing electrodes (103), and a number of electrical traces (105) wherein the sensing electrodes are coupled to a respective one of the electrical traces. The fluid reservoir also includes a common electrode (104) electrically coupled to a voltage source (106). A number of properties of a fluid (110) within the fluid reservoir are detected by applying a voltage between the sensing electrodes in an electrode pair, and a level of the fluid within the fluid reservoir is detected by applying a voltage between the electrodes and the common electrode. A multiplexer (102) may be used to selectively couple the sensing electrodes (103) to a processing device (108). The fluid reservoir may be a printing fluid container.

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

Abstract: A liquid ejecting apparatus includes a liquid ejecting head having nozzles and an opening surface through which the nozzles are opened, the liquid ejecting head being configured to eject liquid from the nozzles, a supply flow path configured to supply the liquid to the liquid ejecting head, a pressurizing mechanism that can pressurize the inside of the supply flow path, an opening/closing mechanism that can open and close the supply flow path, and a control unit that controls operations of the liquid ejecting head, the pressurizing mechanism, and the opening/closing mechanism.