An ink supplying device includes: an attachment unit to which a cartridge for storing ink to be supplied to an inkjet head of a printing apparatus is attached and in which an internal flow path is formed for the ink stored in the cartridge to flow; an external tube that is connected to the internal flow path of the attachment unit and circulates the ink; and a base portion that supports the attachment unit and a part of the external tube. The attachment unit is supported by the base portion so as to be rotatable in a direction around a predetermined central axis. The external tube is disposed in a curved state from a connecting portion connected to the internal flow path to a supported portion supported by the base portion and is provided such that the curved state changes in accordance with the rotation of the attachment unit.

Technology suppressing installation of a cartridge for supplying fluid and recovering waste fluid in a wrong orientation to a fluid ejection device is provided. The cartridge has a box-shaped case. The cartridge includes a fluid pack that stores a fluid and that is disposed in the case and a waste fluid retainer that is disposed beside the fluid pack inside the case. The waste fluid retainer is configured to hold waste fluid introduced to the case from the fluid ejection device. At least one corner of a side of the case on the side on which the fluid pack is disposed is beveled.

A print liquid supply sub-assembly, the print liquid supply sub-assembly to connect to a printer to provide a print liquid to the printer may include a print liquid output to connect to a print liquid input of the printer; a first fluidic channel upstream of the print liquid output comprising a first fluidic valve to prevent the print liquid from entering a supply container upstream of the first fluidic valve; and a second fluidic channel upstream of the print liquid output fluidically coupled to the first fluidic channel comprising a second fluidic valve to selectively prevent the fluid from passing out of the supply container downstream from the second fluidic valve.

A fluid supply component for a replaceable fluid supply may include a channel fluidically coupled to a pliable fluid supply bag; a ball housed within the channel; and a gasket to prevent movement of the ball into the fluid supply bag; wherein the valve prevents fluid from entering the fluid supply bag while the fluid supply bag imparts a negative fluidic pressure.

A printable liquid supply cartridge includes a housing enclosing an internal volume. The housing has a front end to connect to a printer and first and second sides extending from the front end to a rear end. The front end has a printable liquid outlet closer to the bottom than to the top and has a gas inlet above the printable liquid outlet, each of the printable liquid outlet and the gas inlet to facilitate insertion of a respective fluid pen therein. There is a recess in the front end above the gas inlet, the recess being delimited by a first wall having an internal side and an external side that is part of the first side. An I2C data interface including at least three electrical connection pads are exposed on the internal side of the first wall facing towards the recess, the connection pads arranged in a top to bottom direction.

An ink cartridge in which gel ink that is to be supplied to an ink tank of an inkjet recording apparatus is reserved, includes an ink pack and an outer box. The ink pack includes an ink container formed of a soft film material in which the ink is contained and an ink lead-out section which guides the ink inside the ink container outside. The outer box houses the ink pack and has an ink lead-out opening through which the ink lead-out section is exposed outside. The outer box has a pressure applying opening formed therein through which the ink container is exposed and a pressure is capable to be applied to the ink container or has a first perforation line along which the outer box is to be broken to form the pressure applying opening is formed thereon.

An ink container that is attachable to and detachable from an ink supply apparatus that supplies ink, which is an example of a liquid, to a liquid injection apparatus, the ink container including: an ink container part that houses ink; a base member that is located at an end of the ink container part and that projects further outside than the ink container part; an ink outlet part that is provided on the base member so as to project from the base member in a V axis direction intersecting a direction in which the base member projects from the ink container part, and that is in communication with an inside of the ink container part via the base member; and a handle part that is provided on the opposite side to the ink outlet part side of the base member and that projects from the base member in a direction opposite to a direction in which the ink outlet part projects from the base member.

A logic circuitry package for a replaceable print apparatus component comprises an interface to communicate with a print apparatus logic circuit, and at least one logic circuit. The logic circuit may be configured to identify, from a command stream received from the print apparatus, parameters including a class parameter, and/or identify, from the command stream, a read request, and output, via the interface, a count value in response to a read request, the count value based on identified received parameters.

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.

A liquid ejecting apparatus includes a liquid ejecting head that ejects a liquid, a liquid supply system that supplies a liquid to the liquid ejecting head, and a support member provided with a guide portion that supports and guides at least a part of the liquid supply system. Removable joint portions are provided at both ends of the liquid supply system including the part, and a plurality of types of liquid supply systems can be mounted on the support member.