Abstract: Provided is a twist-cut unsealing mechanism in which an operator can surely sense the fact that twist-cutting of a seal member has completed in assembling of spout and cap of such a type that a container is unsealed by twisting and cutting a seal member for the liquid passage of a spout by means of a cap.

Abstract: A pouring member includes an unsealing cap and at least two rotation prevention sections extending vertically and downwardly from an end surface of an open end side of the unsealing cap and is arranged such that the at least two rotation prevention sections are apart from one another by an angle which is larger than a rotation angle required for twisting off the sealing part, and symmetrically with respect to the central axis of the unsealing cap. A recess is formed such that the recess opens to a front end side of the rotation prevention section, and an engagement projection engages the recess in a direction substantially parallel with a direction in which the rotation prevention sections are extended vertically and downwardly, and is formed at a specific position of the flange part of the pouring member.

Abstract: Provided is a twist-cut unsealing mechanism in which an operator can surely sense the fact that twist-cutting of a seal member has completed in assembling of spout and cap of such a type that a container is unsealed by twisting and cutting a seal member for the liquid passage of a spout by means of a cap.

Abstract: Two or more rotation prevention sections 3d are extended vertically and downwardly and symmetrically with respect to the central axis from the end surface on the open end side of an unsealing cap 3, and, at substantially the center of the width direction of each rotation prevention section 3d, a recess 3e is formed such that it opens to the front end side of the rotation prevention section, and an engagement projection 2b which is engaged with said recess 3e in a direction almost parallel with the direction in which said rotation prevention sections 3d are extended vertically and downwardly is formed at a specific position of a flange part 2c provided in a boundary between a base part 23 and a pouring cylindrical part 22 of said pouring member main body 2, whereby unnecessary rotation of the unsealing cap 3 can be prevented and a user can easily judge whether unsealing has been completed.

Abstract: A sealing member 13 is heat-sealed to the upper end surface of the mouth portion 12 of a container, and a lid 15 which is provided with a top panel 15a that covers the mouth portion 12 of the container, and which has an inner peripheral projection 15e that is positioned in the vicinity of a place inner than the inner periphery of the mouth portion 12 of the container on the inside surface of the top panel 15a is fitted to the mouth portion 12 to make it easy to peel (open and peel) the sealing member 13 while high sealing property is ensured, and to prevent the seal member 13 from peeling at the inner periphery of the mouth portion 15 of the container which peeling is caused by a rise in the internal pressure in the container.

Abstract: A negative pressure generated inside a liquid-ejecting head can circulate liquid between the liquid-ejecting head and a liquid tank, prevent the liquid from leaking out of nozzles while the liquid is circulating, and remove bubbles contained in the liquid. A head cartridge includes a printhead ejecting ink from ink-ejecting nozzles formed in a nozzle plate of the printhead, an ink-supplying conduit supplying the ink from an ink tank to an ink chamber in the printhead, an ink-refluxing conduit refluxing the ink from the printhead to the ink tank, and a liquid-delivering pump disposed on the ink-refluxing conduit and circulating the ink between the printhead and the ink tank. The liquid-delivering pump is driven to generate a negative pressure inside the printhead to circulate the ink between the printhead and the ink tank.

Abstract: A line head includes a nozzle plate, a frame-shaped outer frame, a plurality of head chips, and a head support member arranged within the outer frame. The linear expansion coefficients of the nozzle plate and the head support member are larger than that of the outer frame. The nozzle plate is joined onto the outer frame and a tensile stress is produced in the nozzle plate by the outer frame. The head support member is joined and fitted with the outer frame. When the head support member thermally expands relative to the outer frame, a compression stress is produced in the head support member while a strain of the head support member is restricted by the outer frame.

Abstract: A print head for a line printer in which errors between print head chips and another component are reduced and ink leakage is prevented, and in which heat generated in print head chips is efficiently dissipated without making the structure of the print head complex or increasing the size of the print head. A plurality of print head chips (11) are arranged along an ink path (20) and are disposed on both sides of the ink path in a zigzag pattern. Dummy chips (21) which do not eject ink are disposed at regions between the print head chips (11) arranged along the ink path (20). In addition, an ink-path member (23) is provided, at least a part of the ink-path member (23) which includes portions adhered to the print head chips (11) being composed of a material having a high thermal conductivity, so that the ink-path member (23) also serves as heat-dissipating means which dissipates heat generated in the print head chips (11).

Abstract: A print head for a line printer in which errors between print head chips and another component are reduced and ink leakage is prevented, and in which heat generated in print head chips is efficiently dissipated without making the structure of the print head complex or increasing the size of the print head. A plurality of print head chips (11) are arranged along an ink path (20) and are disposed on both sides of the ink path in a zigzag pattern. Dummy chips (21) which do not eject ink are disposed at regions between the print head chips (11) arranged along the ink path (20). In addition, an ink-path member (23) is provided, at least a part of the ink-path member (23) which includes portions adhered to the print head chips (11) being composed of a material having a high thermal conductivity, so that the ink-path member (23) also serves as heat-dissipating means which dissipates heat generated in the print head chips (11).

Abstract: A print head for a line printer in which errors between print head chips and another component are reduced and ink leakage is prevented, and in which heat generated in print head chips is efficiently dissipated without making the structure of the print head complex or increasing the size of the print head. A plurality of print head chips (11) are arranged along an ink path (20) and are disposed on both sides of the ink path in a zigzag pattern. Dummy chips (21) which do not eject ink are disposed at regions between the print head chips (11) arranged along the ink path (20). In addition, an ink-path member (23) is provided, at least a part of the ink-path member (23) which includes portions adhered to the print head chips (11) being composed of a material having a high thermal conductivity, so that the ink-path member (23) also serves as heat-dissipating means which dissipates heat generated in the print head chips (11).

Abstract: A line head includes a nozzle plate, a frame-shaped outer frame, a plurality of head chips, and a head support member arranged within the outer frame. The linear expansion coefficients of the nozzle plate and the head support member are larger than that of the outer frame. The nozzle plate is joined onto the outer frame and a tensile stress is produced in the nozzle plate by the outer frame. The head support member is joined and fitted with the outer frame. When the head support member thermally expands relative to the outer frame, a compression stress is produced in the head support member while a strain of the head support member is restricted by the outer frame.

Abstract: A negative pressure generated inside a liquid-ejecting head can circulate liquid between the liquid-ejecting head and a liquid tank, prevent the liquid from leaking out of nozzles while the liquid is circulating, and remove bubbles contained in the liquid. A head cartridge includes a printhead ejecting ink from ink-ejecting nozzles formed in a nozzle plate of the printhead, an ink-supplying conduit supplying the ink from an ink tank to an ink chamber in the printhead, an ink-refluxing conduit refluxing the ink from the printhead to the ink tank, and a liquid-delivering pump disposed on the ink-refluxing conduit and circulating the ink between the printhead and the ink tank. The liquid-delivering pump is driven to generate a negative pressure inside the printhead to circulate the ink between the printhead and the ink tank.

Abstract: Disclosed herein is a printer having a printer body and a consumable related to printing means, such as an ink cartridge and an ink ribbon, wherein the consumable can be very easily replaced and the electrical connection between the consumable and the printer body can be easily effected. In a printer (1) having a printer body (6) and an ink cartridge (consumable related to printing means) (19) replaceably mounted in the printer body, an ink cartridge tray (consumable tray) (8) for detachably storing the ink cartridge is movably provided in the printer body. A connector (37) provided on the ink cartridge is connected to a connector (38) provided in the printer body when the ink cartridge tray is inserted into the printer body.

Abstract: A print head for a line printer in which errors between print head chips and another component are reduced and ink leakage is prevented, and in which heat generated in print head chips is efficiently dissipated without making the structure of the print head complex or increasing the size of the print head. A plurality of print head chips (11) are arranged along an ink path (20) and are disposed on both sides of the ink path in a zigzag pattern. Dummy chips (21) which do not eject ink are disposed at regions between the print head chips (11) arranged along the ink path (20). In addition, an ink-path member (23) is provided, at least a part of the ink-path member (23) which includes portions adhered to the print head chips (11) being composed of a material having a high thermal conductivity, so that the ink-path member (23) also serves as heat-dissipating means which dissipates heat generated in the print head chips (11).

Abstract: Disclosed herein is a printer having a printer body and a consumable related to printing means, such as an ink cartridge and an ink ribbon, wherein the consumable can be very easily replaced and the electrical connection between the consumable and the printer body can be easily effected. In a printer (1) having a printer body (6) and an ink cartridge (consumable related to printing means) (19) replaceably mounted in the printer body, an ink cartridge tray (consumable tray) (8) for detachably storing the ink cartridge is movably provided in the printer body. A connector (37) provided on the ink cartridge is connected to a connector (38) provided in the printer body when the ink cartridge tray is inserted into the printer body.