Abstract: A joint section of a fill device is coupled to a supply opening of an ink cartridge, and a pressing force section presses an inside plug of the ink cartridge into the supply opening, to press down the inside plug against a biasing unit and release an opening to connect an ink fill section with an ink container. A first pump is operated and fills ink to the inside of the ink container. After the filling, the joint section separates from the supply opening, and the inside plug seals the supply opening by the biasing unit. Ink is filled with no spilling, into the ink container having an ink supply section with valve, and the ink cartridge can be manufactured with good efficiency.

Abstract: An ink cartridge includes: an ink container formed of a thermoplastic film material filled with predetermined ink; an outer package as an outer box in which the ink container is inserted; and an engagement part provided at one longitudinal end part of the ink container and engaging with a cartridge attaching mechanism of a printer. Inside an ink supply section provided at a longitudinal one end of the ink container, an inner plug is provided which closes or opens an opening of a supply opening, and a covering member protecting a shaft part of the inner plug is provided while constantly covering the shaft part regardless of sliding upon attachment and detachment of an ink cartridge.

Abstract: An ink cartridge contains an outer package, an ink container within the outer package, and sheet bodies attached to an outer surface of the outer package, and is attachable to and detachable from a printing device. Small pieces are formed by cuts in the outer package. The small pieces include breakable sections, and the bendable sections. Sheet bodies cover a portion of the small pieces. Pressing on a small piece with a finger breaks the breakable section, and bends the bendable section to press them inside the outer package. A portion of the sheet body then shifts upwards so that the sheet body can be grasped with fingers and peeled away from the outer package. Disassembly and sorting of used cartridges in this way becomes easier.

Abstract: A joint section of a fill device is coupled to a supply opening of an ink cartridge, and a pressing force section presses an inside plug of the ink cartridge into the supply opening, to press down the inside plug against a biasing unit and release an opening to connect an ink fill section with an ink container. A first pump is operated and fills ink to the inside of the ink container. After the filling, the joint section separates from the supply opening, and the inside plug seals the supply opening by the biasing unit. Ink is filled with no spilling, into the ink container having an ink supply section with valve, and the ink cartridge can be manufactured with good efficiency.

Abstract: An ink cartridge contains an outer package, an ink container within the outer package, and sheet bodies attached to an outer surface of the outer package, and is attachable to and detachable from a printing device. Small pieces are formed by cuts in the outer package. The small pieces include breakable sections, and the bendable sections. Sheet bodies cover a portion of the small pieces. Pressing on a small piece with a finger breaks the breakable section, and bends the bendable section to press them inside the outer package. A portion of the sheet body then shifts upwards so that the sheet body can be grasped with fingers and peeled away from the outer package. Disassembly and sorting of used cartridges in this way becomes easier.

Abstract: An ink cartridge includes: an ink container formed of a thermoplastic film material filled with predetermined ink; an outer package as an outer box in which the ink container is inserted; and an engagement part provided at one longitudinal end part of the ink container and engaging with a cartridge attaching mechanism of a printer. Inside an ink supply section provided at a longitudinal one end of the ink container, an inner plug is provided which closes or opens an opening of a supply opening, and a covering member protecting a shaft part of the inner plug is provided while constantly covering the shaft part regardless of sliding upon attachment and detachment of an ink cartridge.

Abstract: A first chamber has a plurality of first ventilation holes of a same size arranged on extended lines of a plurality of head arrays respectively. A second chamber faces the first chamber across the plurality of head arrays and has a plurality of second ventilation holes of a same size facing the plurality of first ventilation holes. Cross-sectional areas of an internal air flow passage in the first chamber at positions of the first ventilation holes decrease with an increase in a distance of the first ventilation holes from a first end of the first chamber. Cross-sectional areas of an internal air flow passage in the second chamber at positions of the second ventilation holes decrease with an increase in a distance of the second ventilation holes from a second end of the second chamber on the same side of the first end.

Abstract: A first chamber has a plurality of first ventilation holes of a same size arranged on extended lines of a plurality of head arrays respectively. A second chamber faces the first chamber across the plurality of head arrays and has a plurality of second ventilation holes of a same size facing the plurality of first ventilation holes. Cross-sectional areas of an internal air flow passage in the first chamber at positions of the first ventilation holes decrease with an increase in a distance of the first ventilation holes from a first end of the first chamber. Cross-sectional areas of an internal air flow passage in the second chamber at positions of the second ventilation holes decrease with an increase in a distance of the second ventilation holes from a second end of the second chamber on the same side of the first end.

Abstract: A first sheet transfer guide plate includes a first divided sheet guide plate and a second divided sheet guide plate separable from each other. The first divided sheet guide plate is capable of being drawn out or pushed in relative to the second sheet transfer guide plate in a sheet width direction. The first divided sheet guide plate and the second divided sheet guide plate are separable from each other by a draw-out operation or a push-in operation of the first divided sheet guide plate. The first divided sheet guide plate is configured to release nipping of a sheet by paired sheet transfer rollers corresponding to the first divided sheet guide plate, along with the draw-out operation or the push-in operation of the first divided sheet guide plate.

Abstract: A first sheet transfer guide plate includes a first divided sheet guide plate and a second divided sheet guide plate separable from each other. The first divided sheet guide plate is capable of being drawn out or pushed in relative to the second sheet transfer guide plate in a sheet width direction. The first divided sheet guide plate and the second divided sheet guide plate are separable from each other by a draw-out operation or a push-in operation of the first divided sheet guide plate. The first divided sheet guide plate is configured to release nipping of a sheet by paired sheet transfer rollers corresponding to the first divided sheet guide plate, along with the draw-out operation or the push-in operation of the first divided sheet guide plate.