A liquid jetting apparatus includes a casing, a tank formed with a liquid storage chamber which stores liquid, an inlet which allows the liquid to be poured into the liquid storage chamber, and a liquid outflow channel which allows the liquid to flow out from the liquid storage chamber, a conveying mechanism which conveys a recording medium along a conveying path extending in a front-rear direction, a carriage which moves in a left-right direction, and a head mounted on the carriage and having a nozzle which jets the liquid onto the recording medium conveyed by the conveying mechanism. The tank, the conveying path, and the carriage are arranged inside the casing, the tank is arranged outside the conveying path in the left-right direction, and at least a part of the tank is arranged inside both ends of a movement area of the carriage in the left-right direction.

In an example, replaceable print apparatus component authentication apparatus comprises a memory and circuitry. An electrical characteristic of the circuitry may be variable in response to a stimulus, and the memory may store data indicative of an expected variation in the electrical characteristic in response to the stimulus which is associated with a variation in capacitance.

A printing apparatus includes: an apparatus body held by a user and provided with a printing unit configured to perform printing in a case of being moved in a first direction; a first guide unit configured to guide the movement in the first direction; a second guide unit rotatably held with respect to a structure fixed to the apparatus body and configured to guide movement in a second direction intersecting with the first direction; and a drive unit configured to be connected with the second guide unit and to rotate the second guide unit so that the structure moves to the second direction relative to the second guide unit by driving of the drive unit.

Provided is a sealing member to be used as a valve in a pressure adjustment mechanism. The sealing member includes a base member having high strength, and has high reliability. The sealing member includes an elastic member (valve portion) having an annular abutment portion (valve distal end portion) formed as an annular protrusion and the base member (lever portion). When a held portion having a tubular shape extending from the annular abutment portion is held in an annular groove formed in the base member, the elastic member is fixed to the base member. A holding length over which an annular groove holds the held portion along a depth direction of the base member is set longer than a width of the annular groove.

A liquid cartridge configured to be inserted in a frontward direction to a printer includes: a housing; a liquid supply portion; a circuit board; a plate; and a detection portion. The circuit board includes an electrode group facing upward in an upright posture of the liquid cartridge. The electrode group includes a first electrode, a second electrode, and a third electrode for grounding. The first to third electrodes are arrayed in a lateral direction crossing the frontward direction and a gravitational direction such that the third electrode is positioned between the first and second electrodes. In the upright posture of the liquid cartridge, the plate and the detection portion are respectively positioned upward and rearward relative to the circuit board. Each of the third electrode and an upper portion of the plate is positioned a datum plane extending in the frontward direction and in the gravitational direction.

Examples of metal traces are described herein. In some examples, a print cartridge includes metal traces. Some examples of a print cartridge may include a joint. In some examples, the joint may be a laser-welded joint. In some examples of the print cartridge, the print cartridge may also include metal traces situated in the laser-welded joint.

There is provided an ink replenishment container for replenishing ink into an ink tank via an ink inlet flow path member having a plurality of flow paths, the ink replenishment container including a container main body, an ink outlet forming portion, and an outlet valve unit. The outlet valve unit includes a valve housing mounted to provide a gap with an inner peripheral surface of a tubular portion in the tubular portion, a sealing member, and a valve body movable between a valve close state in contact with the sealing member and a valve open state separated from the sealing member. The valve body has a partition contact portion capable of contacting a partition of the ink inlet flow path member. The valve housing has a through-hole that communicates with the gap, and the through-hole communicates with the ink inlet flow path member in the valve open state.

A liquid ejection apparatus includes: a storage chamber which is connectable to a cartridge storing liquid and stores liquid supplied from the cartridge; a movable member provided in the storage chamber and including a float and a detection target portion, the float being lower in specific gravity than the liquid stored in the storage chamber; and a detection unit which detects movement of the movable member by detecting the detection target portion. The detection target portion is movable from a first position to a third position through a second position. The detection unit is arranged to detect the detection target portion in a case where the detection target portion is present at the second position.

An ink tank having an ink tank body, a first electrode member, and a second electrode member, is provided. The ink tank body includes an ink inlet, an ink reservoir chamber, an ink supplying section, a first restrictive side wall, a second restrictive side wall, a leaked-ink flow path, a first surface, a second surface, a connecting surface connecting the first surface and the second surface, and a restrictive section. The leaked-ink flow path is formed at least of a part of the first surface, a part of the connecting surface, a part of the second surface, the first restrictive side wall, and the second restrictive side wall. The restrictive section is arranged on the second surface between the first restrictive side wall and the second restrictive side wall. At least a part of the restrictive section is located between the connecting surface and the first electrode member.

An ink tank for an ink delivery system includes: a housing having an ink inlet port and an ink outlet port; an air vent communicating with a headspace of the ink tank; a filter positioned in the housing for filtering ink supplied from the ink tank via the ink outlet port; and a baffle plate positioned in the housing between the ink inlet port and the filter. The baffle plate is configured for directing air bubbles entering the ink tank via the ink inlet port towards the headspace of the ink tank. A baffle opening is positioned towards a base of the ink tank, thereby allowing ink to flow from the ink inlet port towards the ink outlet port via the baffle opening.