Abstract: A liquid replenishing system includes a liquid tank and a liquid storage bottle for storing liquid to be replenished to the liquid tank. The liquid tank includes a tank body, a cylindrical adapter, and a needle penetrating into the tank body inside the cylindrical adapter. One end of the needle is located outside the tank body and another end of the needle is located inside the tank body. The liquid storage bottle includes a bottle body, a nozzle having an ejection port for ejecting a liquid stored in the bottle body, and includes a slit valve provided at the ejection port. In a case where the nozzle of the liquid storage bottle and the cylindrical adapter of the liquid tank are fitted to each other, one end of the needle is inserted into the slit valve so that the liquid storage bottle is secured to the liquid tank.

Abstract: A liquid ejection apparatus includes a liquid container for containing liquid which has a refilling port for refilling the liquid container with liquid, a contained liquid information memory unit for storing information on the liquid contained in the liquid container, a refilling liquid information memory unit for storing information on the liquid to be supplied for refilling the liquid container, a liquid ejection head for ejecting the liquid supplied from the liquid container and a control unit for controlling operation of the liquid ejection apparatus according to the information stored in the contained liquid information memory unit and the information stored in the refilling liquid information memory unit.

Abstract: An inkjet printing apparatus includes a discharge head that discharges ink, and a housing that contains the discharge head, wherein the housing contains a first ink storage member and a second ink storage member that each store ink, and the ink is supplied from each of the first ink storage member and the second ink storage member to the discharge head, wherein the first ink storage member is an ink cartridge not having an ink refilling port for enabling ink refilling by opening a stopper member, and detachable from the inkjet printing apparatus, and wherein the second ink storage member has the ink refilling port.

Abstract: A liquid replenishing system includes a liquid tank and a liquid storage bottle for storing liquid to be replenished to the liquid tank. The liquid tank includes a tank body, a cylindrical adapter, and a needle penetrating into the tank body inside the cylindrical adapter. One end of the needle is located outside the tank body and another end of the needle is located inside the tank body. The liquid storage bottle includes a bottle body, a nozzle having an ejection port for ejecting a liquid stored in the bottle body, and includes a slit valve provided at the ejection port. In a case where the nozzle of the liquid storage bottle and the cylindrical adapter of the liquid tank are fitted to each other, one end of the needle is inserted into the slit valve so that the liquid storage bottle is secured to the liquid tank.

Abstract: An image recording apparatus includes a liquid chamber that stores liquid, a first electrode pin and a second electrode pin to be inserted into the liquid chamber, applying unit for applying voltage across the first electrode pin and the second electrode pin, with the first electrode pin as an anode side and the second electrode pin as a cathode side, and detecting unit for detecting electric current flowing, and detection operation of detecting amount of liquid in the liquid chamber by the detecting unit detecting the electric current when the applying unit applies voltage. Prior to the detection operation, an oxidization aging operation is performed, in which the applying unit applies voltage across the first electrode pin and the second electrode pin. An amount of an oxide layer formed on at least a portion of the first electrode pin exposed inside the liquid chamber is greater than the second.

Abstract: An image recording apparatus includes a liquid chamber, a first electrode pin and a second electrode pin which are inserted into the liquid chamber, application unit for applying a voltage between the first electrode pin and the second electrode pin, and detection unit for detecting a current which flows between the first electrode pin and the second electrode pin, the image recording apparatus has: a first period in which the application unit applies the voltage between the first electrode pin and the second electrode pin, with the first electrode pin as an anode side and the second electrode pin as a cathode side, and the detection unit detects the current; and a second period in which the application unit applies the voltage between the first electrode pin and the second electrode pin, with the first electrode pin as the cathode side and the second electrode pin as the anode side.

Abstract: A liquid ejection apparatus includes: a liquid ejection unit; a liquid storage container including a replenishment port through which to replenish the liquid storage container with a liquid and an opening-closing member which closes and opens the replenishment port; and a notification unit configured to notify a user of information to be recognized by the user; and a control unit configured to control the notification unit. In a case where the time elapsed since the previous liquid ejection by the liquid ejection unit is a predetermined time or longer, the control unit causes the notification unit to notify the user of information on replenishment of the liquid storage container with a liquid.

Abstract: A liquid injection head improving electric reliability includes: a substrate including: energy generating elements configured to apply energy for ejection to a liquid, and a substrate upper surface on which terminals respectively connected to electric wirings are provided, an ejection port forming member having: an ejection port forming surface in which the ejection ports for ejecting a liquid are formed, and a back surface on a side opposite to the ejection port forming surface, which is arranged so as to opposite to the substrate upper surface, and a sealant configured to cover connecting portions between the electric wirings and the terminals.

Abstract: A liquid replenishing system includes a liquid tank and a liquid storage bottle for storing liquid to be replenished to the liquid tank. The liquid tank includes a tank body, a cylindrical adapter, and a needle penetrating into the tank body inside the cylindrical adapter. One end of the needle is located outside the tank body and another end of the needle is located inside the tank body. The liquid storage bottle includes a bottle body, a nozzle having an ejection port for ejecting a liquid stored in the bottle body, and includes a slit valve provided at the ejection port. In a case where the nozzle of the liquid storage bottle and the cylindrical adapter of the liquid tank are fitted to each other, one end of the needle is inserted into the slit valve so that the liquid storage bottle is secured to the liquid tank.

Abstract: A liquid ejection apparatus includes a liquid container for containing liquid which has a refilling port for refilling the liquid container with liquid, a contained liquid information memory unit for storing information on the liquid contained in the liquid container, a refilling liquid information memory unit for storing information on the liquid to be supplied for refilling the liquid container, a liquid ejection head for ejecting the liquid supplied from the liquid container and a control unit for controlling operation of the liquid ejection apparatus according to the information stored in the contained liquid information memory unit and the information stored in the refilling liquid information memory unit.

Abstract: An inkjet printing apparatus includes a discharge head that discharges ink, and a housing that contains the discharge head, wherein the housing contains a first ink storage member and a second ink storage member that each store ink, and the ink is supplied from each of the first ink storage member and the second ink storage member to the discharge head, wherein the first ink storage member is an ink cartridge not having an ink refilling port for enabling ink refilling by opening a stopper member, and detachable from the inkjet printing apparatus, and wherein the second ink storage member has the ink refilling port.

Abstract: An inkjet printer includes an inkjet head configured to discharge ink and an ink tank including a plurality of ink storage portions in which the ink is stored to supply the ink to the inkjet head via a connected tube, and replenishing ports via which the plurality of ink storage portions is replenished with ink, wherein the ink tank has an outer wall facing an outer side of the ink tank and having a thickness greater than a thickness of a partition wall arranged between the plurality of ink storage portions.

Abstract: A liquid ejection apparatus includes: a liquid ejection unit; a liquid storage container including a replenishment port through which to replenish the liquid storage container with a liquid and an opening-closing member which closes and opens the replenishment port; and a notification unit configured to notify a user of information to be recognized by the user; and a control unit configured to control the notification unit. In a case where the time elapsed since the previous liquid ejection by the liquid ejection unit is a predetermined time or longer, the control unit causes the notification unit to notify the user of information on replenishment of the liquid storage container with a liquid.

Abstract: A liquid injection head improving electric reliability includes: a substrate including: energy generating elements configured to apply energy for ejection to a liquid, and a substrate upper surface on which terminals respectively connected to electric wirings are provided, an ejection port forming member having: an ejection port forming surface in which the ejection ports for ejecting a liquid are formed, and a back surface on a side opposite to the ejection port forming surface, which is arranged so as to opposite to the substrate upper surface, and a sealant configured to cover connecting portions between the electric wirings and the terminals.

Abstract: A configuration of a liquid ejecting head enables a stable, continuous ink supply with the off-carriage method, even if a force operates in the direction of joint needle insertion and removal. To this end, a joint opening that accepts insertion of a joint needle on a printing apparatus side is placed at a position closer to a joint face between an ejecting head and a sub tank unit than a positioning opening that engages with a positioning member on the printing apparatus side. Consequently, even if external force is produced due to coupling, the force exerted on the joint face that is a weak portion of an inkjet head may be minimized.

Abstract: A liquid ejection head includes an energy generating element configured to generate energy used for ejection of a liquid, a print element board including an electroconductive anti-cavitation film provided to cover the energy generating element, and a connection board electrically connected to the anti-cavitation film and including a connection pad electrically connectable from outside.

Abstract: A liquid discharge head includes a recording element substrate including a recording element, an electronic substrate disposed outside the recording element substrate, an electric element mounted on the electronic substrate, a housing that supports the recording element substrate and the electronic substrate and is made of a first resin material, and a cover member that surrounds and shields the electric element and is made of a second resin material, wherein the second resin material has higher heat resistance than the first resin material.

Abstract: A liquid discharge head includes a discharge unit that discharges a liquid as a result of electric energy being supplied to the discharge unit, a first wiring member that is joined to the discharge unit and that includes a plurality of first joining terminals each capable of transmitting the electric energy to the discharge unit, and a second wiring member that is electrically joined to the first wiring member and that includes a plurality of second joining terminals. At least three of the plurality of first joining terminals are inspection terminals that are short-circuited, and the second joining terminals are connected to contact terminals to each of which an external signal can be input.

Abstract: A printing element substrate includes a plurality of printing elements, a first transistor forming an electrical pathway common to the plurality of printing elements, and a plurality of second transistors for driving the plurality of printing elements independently of each other. An electrical pathway is formed between a first power node and a second power node in the order of the first transistor, one of the plurality of printing elements, and one of the plurality of second transistors. The electrical pathway connecting each of the plurality of printing elements and the first transistor includes a plurality of electrical paths.

Abstract: A liquid ejecting head and a liquid ejecting apparatus that can suppress the influence of noise on a control signal includes a plurality of terminals for being electrically connected with a contact point provided in a liquid ejecting apparatus, and a liquid ejecting element substrate having a liquid ejecting element formed for ejecting liquid in response to a control signal transmitted from the liquid ejecting apparatus. The plurality of terminals includes signal terminals and ground terminals for control, for controlling the liquid ejecting element, and the signal terminals and the ground terminals for control are arranged at positions closer to the liquid ejecting element substrate than other terminals.