Abstract: A liquid ejection recording head which receives liquid from one or more liquid containers mounted on a carriage, the liquid container having a press-contact member of fibrous material at a liquid outlet, the liquid ejection recording head includes a tubular member for receiving ink from the liquid container, the tubular member being provided with an upstream edge with respect to a direction of flow of the liquid therethrough; a filter provided in the tubular member and having an outer surface press-contactable to the press-contact member, the outer surface being a substantially flat surface and being outward beyond the upstream edge of the tubular member.

Abstract: An ink jet recording head including a discharge port for discharging ink, a liquid flow path that communicates with the discharge port and having a heat energy generating element for generating a heat energy to be utilized for discharging the ink, a common liquid chamber disposed for supplying the ink into the liquid flow path as the ink is discharged and located after the liquid flow path and an ink supply port for supplying the ink into the common liquid chamber, in which the common liquid chamber has a curved surface convex inward of the liquid chamber in a region adjacent to the ink supply port.

Abstract: A liquid ejection recording head which receives liquid from one or more liquid containers mounted on a carriage, the liquid container having a press-contact member of fibrous material at a liquid outlet, the liquid ejection recording head includes a tubular member for receiving ink from the liquid container, the tubular member being provided with an upstream edge with respect to a direction of flow of the liquid therethrough; a filter provided in the tubular member and having an outer surface press-contactable to the press-contact member, the outer surface being a substantially flat surface and being outward beyond the upstream edge of the tubular member.

Abstract: A storage container for sealingly carrying an ink jet recording head cartridge having an ink jet recording head having the discharge orifices for discharging the ink and a mounting portion for mounting an ink tank replaceably. The ink jet recording head cartridge comprises a storage tank, mounted on the mounting portion, having a negative pressure producing member accommodating chamber having a negative pressure producing member for producing the negative pressure, with an atmosphere communicating portion for communicating to the outside, and a sealed chamber having a communicating portion for communicating to the negative pressure producing member accommodating chamber and forming a sealed space from the outside, except for the communicating portion, with a sealing member for sealing the discharge orifices.

Abstract: An ink-jet recording apparatus that reduces degradation phenomena in a recording dignity, such as a staggered flying trajectory of an ink droplet caused by poor adhesion between an ink path and a substrate. The ink-jet apparatus includes, a first contacting surface, which enables the ink paths to contact a substrate. The first contacting surface is positioned at an incline relative to a second contacting surface. When a trenched top board is mounted on the substrate, which is fixed on a base plate, only a protrudent ridge, which is formed on an ejector N side of the contacting surface, contacts the substrate. When a pressurizing force is applied from an elastic member through a pressurizing member onto a portion to be pressurized, the contacting surface contacts uniformly with the substrate due to a deformation of the trenched top board.