Abstract: A liquid container for supplying a liquid to a liquid ejection apparatus comprises: a liquid chamber provided to store the liquid; an air chamber connected with the liquid chamber to introduce the outside air into the liquid chamber with consumption of the liquid in the liquid chamber; an open-air hole provided to introduce the outside air into the air chamber; and a liquid inlet provided to fill the liquid into the liquid chamber, wherein the liquid inlet is located at a lower position than the open-air hole, in a filling attitude of the liquid container in which the liquid is filled into the liquid chamber.

Abstract: A liquid container includes a liquid chamber and a flexible member. The liquid chamber is configured to contain the liquid. The flexible member is subject to deformation with a decrease in internal pressure of the liquid chamber. The liquid container includes a negative pressure generator configured to maintain negative pressure in the liquid chamber by applying pressure to the flexible member. The liquid container includes a liquid outlet configured to feed the liquid out of the liquid chamber. The liquid container includes an air inlet configured to introduce air into the liquid chamber when the internal pressure of the liquid chamber is lowered to or below a preset level. The liquid container includes a detection-associated member for detection of the remaining volume of the liquid in the liquid chamber. The detection-associated member can be located inside the liquid chamber on a wall of the container body.

Abstract: A method of manufacturing a liquid container includes (a) a process of preparing a liquid container, (b) a process of storing liquid in a liquid storage chamber by injecting the liquid from the liquid storage chamber or an upstream side of the liquid storage chamber in a channel from an atmosphere opening port to a supply port based on a flow direction of a fluid from the atmosphere opening port to the supply port.

Abstract: A liquid container for supplying a liquid to a liquid ejection apparatus comprises: a liquid chamber provided to store the liquid; an air chamber connected with the liquid chamber to introduce the outside air into the liquid chamber with consumption of the liquid in the liquid chamber; an open-air hole provided to introduce the outside air into the air chamber; and a liquid inlet provided to fill the liquid into the liquid chamber, wherein the liquid inlet is located at a lower position than the open-air hole, in a filling attitude of the liquid container in which the liquid is filled into the liquid chamber.

Abstract: A second sealing film F2 is thermally bonded onto a leading end portion R1 of an ink lead-out member 32b of an ink pack and an annular projecting portion R2 provided on an ink casing 31. Thereby, a gap D produced between the ink lead-out member 32b and the ink casing 31 can be closed from outside the ink casing 31. Accordingly, the airtightness of a space S in the ink casing 31 is kept, thus making it possible to raise the pressure in the space S and generate such a force as to crush the ink pack.

Abstract: A method of manufacturing a liquid container. The liquid container includes a container portion, a supply opening through which the liquid inside the container portion is supplied outside of the liquid container, and a detection member for detecting an amount of the liquid in the container portion. The container portion is partitioned into a first, second, third, and fourth chambers, which are downstream from each other in this order with respect to flow of the liquid from the container portion toward the supply opening. The fourth container chamber is inside the third container chamber, but partitioned from the third container chamber by a first sheet member. The detection member is inside the fourth container chamber. The method includes forming an injection opening in communication with the container portion at the fourth container chamber or downstream from the fourth container chamber and injecting liquid into the injection opening.

Abstract: A method for manufacturing a liquid container, the liquid container including: a case having a containing section for containing liquid; a supply port for supplying the liquid from the containing section to the outside thereof; and a detection member for detecting an amount of the liquid in the containing section, wherein the containing section is divided into a first containing chamber, a second containing chamber, a third containing chamber and a fourth containing chamber in a flow of the liquid from the containing section to the supply port, the method comprising: forming an injection port on an upstream part of the flow from the fourth containing chamber, the injection port being communicated with the inside of the containing section; and injecting the liquid from the injection port.

Abstract: A liquid storage container which is mounted on a carriage of a liquid ejecting apparatus ejecting a liquid while reciprocating the carriage on which an ejecting head is provided and supplies the liquid to the ejecting head includes a liquid storage chamber configured to store the liquid therein, a stirring member has a stirring surface and provided in the liquid storage chamber in a state capable of being swung by the reciprocation of the carriage, a support member that supports the stirring member, and a first buffer member is provided between the support member and the stirring member.

Abstract: There is provided an ink cartridge which is formed from an ink-filled ink pack and a hermetic outer shell case for housing the ink pack and which supplies ink to a recording head by means of application of air pressure to a space between the outer shell case and the ink pack. The outer shell case is formed by coupling an upper case and a lower case together. The ink-filled ink pack is housed in the lower case, and the upper case is laid on the lower case from above. The upper and lower cases are hermetically sealed by vibratory welding or heat welding, thus constituting the ink cartridge.

Abstract: A tube support member that puts a tube connected to an ink jet head and an ink tank in a bent state is provided. Accordingly, when a pulling force acts between the bent support member and the tube, a component force acting as contact force occurs at the surface that makes contact with the tube, and a high degree of friction is generated in response to this component force. The tube is thus strongly supported in a state in which the tube does not shift with the dimensions of the tube changing. Meanwhile, when the pulling force is released, the component force is also eliminated, and the tube is freed; the dimensions of the tube return to normal, and the tension is eliminated.

Abstract: There is provided an ink cartridge which is formed from an ink-filled ink pack and a hermetic outer shell case for housing the ink pack and which supplies ink to a recording head by means of application of air pressure to a space between the outer shell case and the ink pack. The outer shell case is formed by coupling an upper case and a lower case together. The ink-filled ink pack is housed in the lower case, and the upper case is laid on the lower case from above. The upper and lower cases are hermetically sealed by vibratory welding or heat welding, thus constituting the ink cartridge.

Abstract: A method of refilling ink in an ink cartridge includes refilling the ink in the ink cartridge from a position at which a translucent part is provided in the ink cartridge, with the translucent part being used to optically detect an amount of the ink held in the ink cartridge.

Abstract: A method of manufacturing a liquid container includes (a) a process of preparing a liquid container, (b) a process of storing liquid in a liquid storage chamber by injecting the liquid from the liquid storage chamber or an upstream side of the liquid storage chamber in a channel from an atmosphere opening port to a supply port based on a flow direction of a fluid from the atmosphere opening port to the supply port.

Abstract: An object is to provide a technology capable of decreasing the possibility that bubbles may reach a first member. A method of manufacturing a liquid container includes (a) a process of preparing a liquid container, (b) a process of storing liquid in a first storage chamber by injecting the liquid from the downstream side of the first storage chamber based on a flow direction of a fluid from an atmosphere opening port to a supply port.

Abstract: Ejection of ink is prohibited when a count value of an amount of ink supplied from an ink tank to an ejection head reaches a value limit. An image is displayed to prompt an operator of the printing apparatus to confirm the amount of ink in the ink tank. When the ink remains, the count value of the amount of ink is returned only by a given amount by the selection of the operator. Thus, since the ink in the ink tank is sufficiently consumed and then the ink can be supplemented, all of the ink in an ink bottle can be supplemented. As a consequence, it is possible to prevent the ink remaining in the ink bottle from deteriorating and prevent the remaining ink from being supplemented.

Abstract: A circuit board of an ink cartridge is provided with a plurality of terminals, with the contact portions of the plurality of terminals forming a plurality of lines. The contact portions of two terminals used for detecting installation are positioned in a first line, and the contact portion of a power terminal is positioned between the two terminals. The first line may be positioned to a leading side when the ink cartridge is moved in a prescribed direction to effect installation in a printer. Alternatively, the first line may be the line closest to an opening of an ink delivery port. Alternatively, the first line may be the line closest to an ink delivery needle.

Abstract: A circuit board of an ink cartridge is provided with a plurality of terminals, with the contact portions of the plurality of terminals forming a plurality of lines. The contact portions of two terminals used for detecting installation are positioned in a first line, and the contact portion of a power terminal is positioned between the two terminals. The first line may be positioned to a leading side when the ink cartridge is moved in a prescribed direction to effect installation in a printer. Alternatively, the first line may be the line closest to an opening of an ink delivery port. Alternatively, the first line may be the line closest to an ink delivery needle.

Abstract: There is provided a container unit located outside of a liquid ejection apparatus and configured to supply a liquid to the liquid ejection apparatus via a connection path. The container unit includes: a liquid container configured to contain the liquid, the liquid container having a liquid fill port for pouring the liquid into the liquid container; and a bottom cover member attached to the liquid container and configured to form a bottom face that comes into contact with a mounting surface of the container unit in a liquid supply attitude of the liquid container, in which the liquid is supplied to the liquid ejection apparatus. The bottom cover member has a liquid retainer provided on an opposed face to retain the liquid flow into the opposed face, the opposed face being provided on an opposite side to the bottom face and being opposed to the liquid container.