Abstract: A liquid supplying system comprises a capillary force generating member accommodating container which stores therein a capillary force generating member for retaining liquid, and is provided with a liquid supply portion for supplying outward the liquid retained in the capillary force generating member, and an air vent through which the capillary force generating member is in fluid communication with ambience; and a liquid reservoir container which is provided with a liquid reservoir portion for storing therein the liquid to be supplied to the capillary force generating member accommodating container, and a communication path portion for supplying the liquid to the capillary force generating member accommodating container, and forms therein a virtually sealed space except for the presence of the communication path portion; wherein the capillary force generating member is provided with a layer in which the primary direction in which fiber strands therein are arranged is substantially horizontal, and this layer

Abstract: A fiber body which exhibits sufficient ink supplying characteristics for keeping up with the trend toward diversification of ink and high printing speed while ensuring an easy and simple ink injection operation and a liquid container having the same. The ink tank has a PP fiber body (crosshatched area of the figures), as a negative pressure generating member for an ink jet head which ejects liquid to perform recording, arranged almost all over the interior thereof, so as to allow the fiber body to hold a liquid to be supplied to an ink jet head. On the top of the tank casing, provided is an atmosphere communication port. And as a PP fiber body, used is an assembly of intertwined PP fibers of which surface has been subjected to surface treatment of giving hydrophilic nature thereto.

Abstract: A liquid container which can precisely detects existence/absence of residual liquid at a low cost, a cartridge including the liquid container, and a printing apparatus using the cartridge. The lengthwise direction of a triangular prism provided on the bottom of the ink tank is along a direction of print medium conveyance in the printing apparatus, such that when an ink-jet head cartridge holding the ink tank is attached to the printing apparatus for performing printing, light emitted from an optical unit of the printing apparatus is precisely captured by the prism. Further, if two ink-jet head cartridges are mounted on the printing apparatus, the first and second ink-jet head cartridges are set in positions shifted from each other by a length shorter than the length in the lengthwise direction of the prism, such that the light emitted from the optical unit reaches the prisms provided in the ink tanks of the first and second ink-jet head cartridges.

Abstract: A liquid container includes a liquid containing portion having an opening; a liquid supply portion, fixed in the liquid containing portion, for introducing the liquid from the liquid containing portion; an information memory medium accommodating portion, provided in the liquid containing portion, for holding an information memory medium storing information relating to the liquid container, wherein the information memory medium accommodating portion is adapted such that contact surface of the information memory medium held by the information memory medium accommodating portion is opposed to the liquid supply portion and that space is provided between the contact surface and a surface of the liquid containing portion.

Abstract: An ink container detachably mountable to a portion to be mounted includes a substantially prism-shaped casing having an opening, a multi-layer inner bladder deformable with discharge of liquid, the inner bladder having an outer surface which is equivalent or similar to an inner surface of the casing, the casing and the inner bladder constituting a liquid reservoir, and a discrimination member for discriminating the liquid in the liquid reservoir.

Abstract: A liquid container for an ink jet recording apparatus includes a connection opening connectable with an outside; an elastic member provided in the connection opening, the elastic member being adapted to be penetrated by a cylindrical member for fluid communication with the outside; the elastic member including a compressed region and a substantially non-compressed region in a state without the cylindrical member penetrated, disposed in this order in a direction of insertion of the cylindrical member, wherein the compressed region and the non-compressed region are capable of being compressed when they are penetrated by the cylindrical member.

Abstract: To provide a recording liquid feed path, recording liquid container, and recording liquid feed device having the same, as well surface modifying method for the recording liquid feed device to feed efficiently a recording liquid for ejection through a feed tube. If the interior of the feed tube is not rendered hydrophilic as shown in FIG. 3A, air which has passed through a wall of the feed tube forms a bubble, which bubble adheres to an inner surface of the feed tube and obstructs a flow of the recording liquid. But if the inner surface of the feed tube is rendered hydrophilic to form a hydrophilic surface as shown in FIG. 3B, the recording liquid is conducted along the hydrophilic surface at the inner surface portion of the feed tube with the bubble adhered thereto, so that the adhesion area of the bubble to the feed tube inner surface is reduced and the bubble floats from the inner surface.

Abstract: A liquid container which can precisely detects existence/absence of residual liquid at a low cost, a cartridge including the liquid container, and a printing apparatus using the cartridge. The lengthwise direction of a triangular prism provided on the bottom of the ink tank is along a direction of print medium conveyance in the printing apparatus, such that when an ink-jet head cartridge holding the ink tank is attached to the printing apparatus for performing printing, light emitted from an optical unit of the printing apparatus is precisely captured by the prism. Further, if two ink-jet head cartridges are mounted on the printing apparatus, the first and second ink-jet head cartridges are set in positions shifted from each other by a length shorter than the length in the lengthwise direction of the prism, such that the light emitted from the optical unit reaches the prisms provided in the ink tanks of the first and second ink-jet head cartridges.

Abstract: The invention is to connect a liquid container, having a fluid connecting portion and an information memory medium, to the main body of a recording apparatus without generating stress in both connecting portions. An information memory medium is fixed on the internal wall of a connection aperture of an information memory medium holder, which is contained in a space defined by an information memory medium holder containing portion and a bottom cover. The space is of a size capable of containing the information memory medium holder without contact thereto, and the information memory medium holder can change its position and direction in the space.

Abstract: An ink tank producing a stable negative pressure regardless of material used is provided. In the ink tank, inner and outer walls include a bonding region having a bonding force distribution. With this arrangement, since the inner wall separates from the outer wall as ink in the ink tank is being guided out, the area of a non-bonding region increases.

Abstract: A liquid accommodating container includes an inner layer constituting a liquid accommodating portion for accommodating liquid therein; an outer layer having an inner shape substantially equivalent to an outer shape of the inner layer, the outer layer being provided with an air vent for fluid communication between a space between the inner layer and the outer layer with an ambience; a liquid supply portion for supplying the liquid out of the liquid accommodating portion, wherein with supply of the liquid through the liquid supply portion, the inner layer peels off the outer layer, wherein the inner layer and the outer layer are contacted, in a first region, with each other with such a force that the inner layer is peelable from the outer layer by change of an inner pressure, and the inner layer and the outer layer are contacted, in a second region, with each other with a force which is larger than that in the first region, by which the inner layer peels off the outer layer in the second region after the inner

Abstract: A liquid supply system includes a liquid supply container provided with a liquid supply portion for supplying liquid to outside; and a detector which detects presence or absence of the liquid in the liquid supply container, using an electrostatic capacity between the liquid in the liquid supply container and the electrode. The electrode is disposed to be parallel with and spaced from a bottom surface of the liquid supply container, and the bottom surface is inclined relative to a horizontal plane from one end to another end of the liquid supply container, and has a connecting portion at a lower side end.

Abstract: An ink tank producing a stable negative pressure regardless of material used is provided. In the ink tank, inner and outer walls include a bonding region having a bonding force distribution. With this arrangement, since the inner wall separates from the outer wall as ink in the ink tank is being guided out, the area of a non-bonding region increases.

Abstract: A liquid container which is in detachably connectable to a supply tube which is in fluid communication with a liquid ejection recording head, the liquid container including a liquid accommodating portion for accommodating liquid to be supplied to the liquid ejection recording head and a supply port for permitting supply of the liquid to the recording head from the liquid accommodating portion by connection of the liquid container to the liquid ejection recording head, the liquid container includes a capillary force generating member for generating a capillary force to absorb the recording liquid deposited on the surface of the supply tube and in the supply port into a space, other than the liquid accommodating portion, in the liquid container; wherein a capillary force A generated in an absorption region for absorbing the recording liquid remaining in the supply port adjacent the supply port of the capillary force generating member and a capillary force B in a storing region for storing the recording liquid a

Abstract: A liquid container for ink jet recording includes in combination a liquid containing portion having an opening; and a connecting unit having a connecting portion for introducing liquid from an inside of the liquid containing portion.

Abstract: A liquid supplying system comprises a capillary force generating member accommodating container which stores therein a capillary force generating member for retaining liquid, and is provided with a liquid supply portion for supplying outward the liquid retained in the capillary force generating member, and an air vent through which the capillary force generating member is in fluid communication with ambience; and a liquid reservoir container which is provided with a liquid reservoir portion for storing therein the liquid to be supplied to the capillary force generating member accommodating container, and a communication path portion for supplying the liquid to the capillary force generating member accommodating container, and forms therein a virtually sealed space except for the presence of the communication path portion; wherein the capillary force generating member is provided with a layer in which the primary direction in which fiber strands therein are arranged is substantially horizontal, and this layer

Abstract: A liquid container includes a liquid containing portion having an opening; a liquid supply portion, fixed in the liquid containing portion, for introducing the liquid from the liquid containing portion; an information memory medium accommodating portion, provided in the liquid containing portion, for holding an information memory medium storing information relating to the liquid container, wherein the information memory medium accommodating portion is adapted such that contact surface of the information memory medium held by the information memory medium accommodating portion is opposed to the liquid supply portion and that space is provided between the contact surface and a surface of the liquid containing portion.

Abstract: A liquid supplying system comprises a capillary force generating member accommodating container which stores therein a capillary force generating member for retaining liquid, and is provided with a liquid supply portion for supplying outward the liquid retained in the capillary force generating member, and an air vent through which the capillary force generating member is in fluid communication with ambience; and a liquid reservoir container which is provided with a liquid reservoir portion for storing therein the liquid to be supplied to the capillary force generating member accommodating container, and a communication path portion for supplying the liquid to the capillary force generating member accommodating container, and forms therein a virtually sealed space except for the presence of the communication path portion; wherein the capillary force generating member is provided with a layer in which the primary direction in which fiber strands therein are arranged is substantially horizontal, and this layer