Abstract: A tank includes a storage chamber, a bottom wall, a top wall, a peripheral wall connecting the bottom and top walls to each other, and an outlet in communication with the storage chamber. The bottom wall extends in a lateral direction crossing an up-down direction and has an inner surface including: a flat part extending in the lateral direction and defining a bottom of the storage chamber; and a protruding part protruding downward from the flat part and defining an extra space in communication with the storage chamber. The outlet is positioned in the extra space. Either the bottom wall or the top wall is integrally molded with the peripheral wall to constitute an integrally-molded wall structure having an aperture, and the other one of the bottom wall and the top wall is liquid-tightly connected to the integrally-molded wall structure while covering the aperture to define the storage chamber.

Abstract: There is provided a liquid supplying apparatus including: a liquid container including an internal space, and a tank having a storing chamber. The liquid container has: an upper surface, a nozzle, and a circular wall projecting upward from the upper surface. The tank has: a body; a projecting wall defining a tank recessed part, and a communicating tube positioned in the tank recessed part and having first and second channels which communicate the storing chamber with outside. The circular wall is inserted into the tank recessed part, and the communicating tube is inserted into the opening of the nozzle so as to allow the liquid to flow out from the internal space to the storing chamber. In a case that the liquid container is connected to the tank, the circular wall is positioned inside the projecting wall.

Abstract: A tank includes a first storage chamber, a second storage chamber, a first communication part to which a first liquid bottle is connectable, and a second communication part to which a second liquid bottle is connectable. The first storage chamber is defined by a first surface and a second surface facing the first surface in a first direction. The second storage chamber is defined by a third surface and a fourth surface facing the third surface in the first direction. The first and second storage chambers are juxtaposed in the first direction. In the first direction, a center of the first communication part in the first direction is offset from a center of the first storage chamber in the first direction. In the first direction, a center of the second communication part in the first direction is offset from a center of the second storage chamber in the first direction.

Abstract: A printing liquid container includes first and second members having a supply port and a valve, respectively. The members rotate with respect to each other between first and second states. The valve closes and opens the supply port in the first and second states, respectively. The first and second members have first and second fitting portions, respectively. The fitting portions fit to a fitted portion of a tank in the first state. The second fitting portion allows rotation of the second member with respect to the fitted portion when the first fitting portion are fitted to the fitting portion. The first member does not rotate together with the second member due to fitting between the fitted portion and the first fitting portion. The second member cannot be removed from the fitted portion due to fitting of the second fitting portion to the fitted portion in the second state.

Abstract: An ink container includes a front wall, a rear wall, a first sidewall, and a second sidewall. The front wall faces frontward in an attachment direction of the ink container. The rear wall is spaced apart from the front wall in a rearward direction opposite the attachment direction. The first sidewall is positioned between the front wall and the rear wall. The second sidewall is positioned between the front wall and the rear wall, and spaced apart from the first sidewall. The front wall, the rear wall, the first sidewall and the second sidewall define a main body that includes a chamber configured to store ink.

Abstract: An ink container is provided. The ink container includes a main body. The main body includes a first key portion and a second key portion. The first key portion is positioned on a first outer surface of the main body. The second key portion is positioned on a second outer surface.

Abstract: An ink container includes a chamber, an ink supply portion, an electrical interface, and a first key portion. The ink supply portion is configured to supply ink from the chamber. The supply port defines a front end of the ink supply portion. The supply port is oriented in an attachment direction. The electrical interface has a contact surface facing upward in an up-down direction. The contact surface of the electrical interface is positioned above the supply port in the up-down direction. The first key portion is positioned forward of the supply port in the attachment direction, above the supply port in the up-down direction, and below the contact surface of the electrical interface in the up-down direction.

Abstract: An ink container is insertable into an attachment unit that includes a contact group having a plurality of contacts aligned in a left-right direction. The ink container includes a main body that includes a chamber configured to store ink; a supply portion that extends forward from the chamber in a front-rear direction and is configured to supply the ink stored in the chamber to an outside of the main body; and an electrical interface positioned apart from the supply portion upwardly in an up-down direction orthogonal to the left-right direction and front-rear direction. The electrical interface includes an electrode group that has a plurality of electrodes aligned in the left-right direction. The electrode group is electrically connected to the contact group in a state where the ink container is inserted in the attachment unit.

Abstract: An ink container includes a main body and a supply port. The main body includes a chamber configured to store ink. The supply port faces in a first direction. The main body further includes: a front surface positioned in the first direction from the supply port; a left surface that extends from the front surface in a second direction opposite to the first direction; a right surface that extends from the front surface in the second direction; and a first groove that extends from the front surface in the second direction, the first groove being positioned above the supply port in an up-down direction.

Abstract: An ink container includes a main body, a lower surface, and a guide wall. The main body includes a chamber configured to store ink. The main body has first and second sidewalls spaced apart from one another to define a first width. The supply port faces frontward in an attachment direction of the ink container and is configured to supply ink from the chamber. The lower surface is positioned above the supply port in an up-down direction, and forward of the supply port in the attachment direction of the ink container.

Abstract: A liquid cartridge includes a housing, a first support member, and a first valve mechanism. The housing includes a first tubular portion extending in a first direction. The first support member has a tubular shape and accommodated in the first tubular portion. The first valve mechanism is at least partially accommodated in the first support member.

Abstract: A liquid container is insertable into an attachment unit in a first direction. The liquid container includes a main body that includes a chamber and a protrusion. The chamber is configured to store liquid configured to store liquid. The protrusion has a contact surface that faces a second direction opposite to the first direction.

Abstract: An ink container is insertable into an attachment unit. The ink container includes a main body that includes a chamber configured to store ink therein, a supply portion that extends forward from the chamber and is configured to supply the ink in the chamber to an outside of the main body; and an electrical interface that is positioned upward of the supply portion and apart from the supply portion and has an electrode.

Abstract: An ink container includes a chamber, a supply port, an electrical interface, and a protrusion. The chamber is configured to store ink. The supply port faces frontward in an insertion direction. The electrical interface includes a contact surface that faces upward in an up-down direction orthogonal to the insertion direction. The protrusion is positioned upward in the up-down direction and frontward in the insertion direction of the supply port.

Abstract: A liquid cartridge includes a housing that has a cylindrical portion and a first valve mechanism at least partially accommodated in the cylindrical portion. The housing is blow molded with air blown from an air nozzle. At least a part of an inner surface of the cylindrical portion is a transfer surface to which an outer peripheral surface of a mold is transferred.

Abstract: An ink container is attachable to an attachment portion. The ink container includes a first member and a second member. The first member includes a chamber configured to store ink and a supply portion having a supply opening that opens forward in a front-rear direction. The second member is positioned forward of the first member.

Abstract: A tank includes: a liquid storage chamber configured to receive liquid from a liquid container connectable to the tank; a first sensor; and a second sensor. The liquid storage chamber defines therein a first detecting position and a second detecting position spaced apart from each other in a horizontal direction. The liquid storage chamber has: a liquid inlet port positioned above the first detecting position and the second detecting position; and a liquid outlet port positioned below the first detecting position and the second detecting position. The first sensor outputs a first signal when detecting the liquid at the first detecting position and outputs a second signal when not detecting the liquid at the first detecting position. The second sensor outputs a third signal when detecting the liquid at the second detecting position and outputs a fourth signal when not detecting the liquid at the second detecting position.

Abstract: An image forming device includes an image forming unit, a notification device, and a controller. The image forming unit is configured to print an image on a sheet with colorant accommodated in a cartridge mounted on the image forming device. The notification device is configured to notify of information. The controller is configured to perform, at a prescribed time, a recycling potential determination process to determine whether the cartridge can be recycled. The controller is configured to perform, when the recycling potential determination process determines that the cartridge can be recycled, a guiding process to control the notification device to notify of a guiding message showing a guidance on recycling the cartridge.

Abstract: A liquid cartridge includes: a cartridge case defining therein a liquid storage chamber; a liquid supply portion; a circuit board; a plate member; and a residual-amount detecting portion. The residual-amount detecting portion is configured to change a state of incident light according to an amount of the liquid stored in the liquid storage chamber, and includes an optical access portion on which light traveling in a left-right direction is incident. The plate member is pivotally movable between: a first posture where a portion of the plate member is positioned upward relative to the optical access portion; and a second posture where the plate member is positioned downward relative to the optical access portion. The plate member in the first posture and the residual-amount detecting portion define a light transmissive region therebetween in the front-rear direction. The light transmissive region has a light transmittance greater than that of the plate member.

Abstract: A controller of an image forming device is configured to perform: an elapsed time acquisition process; an evaluation value acquisition process; and an outputting process. The elapsed time acquisition process acquires a length of elapsed time in each of a first time period and a second time period. The evaluation value acquisition process acquires a first evaluation value for the first time period and a second evaluation value for the second time period. Each of the first and second evaluation values specifies a degree of change in a quality of colorant in a cartridge during a corresponding one of the first and second time periods and is based on the length of elapsed time acquired in the elapsed time acquisition process and an ambient environment of the cartridge affecting the quality of the colorant. The outputting process outputs an output value reflecting both the first and second evaluation values.