In a board that includes a plurality of contact portions that are arranged to contact corresponding apparatus-side terminals when the board is mounted in a printing apparatus, some contact portions are disposed in a first region, and the remaining contact portions are disposed in a second region. The some contact portions include a first contact portion, a second contact portion, a third contact portion, and a fourth contact portion. The remaining contact portions include a fifth contact portion. The some contact portions are arranged in a first pattern in the first region and the remaining contact portions are arranged in a second pattern in the second region, and the first pattern is asymmetrical to the second pattern with respect to a first virtual line.

A cap for a printhead device including a main body that includes a side wall, a top wall, and a bottom wall, the top wall and the bottom wall in a facing relation to one another so that a printhead device is held between the top and bottom walls, a vent seal disposed within an opening in the top wall, a nozzle plate seal disposed within an opening in the bottom wall, and a nozzle plate seal retainer that holds the nozzle plate seal within the opening in the bottom wall.

A member includes a plurality of pad electrodes and a casing, wherein the plurality of pad electrodes are mounted on the casing and are rotatable relative to the casing on the casing.

A printing fluid cartridge includes a front face oriented toward a first direction, a printing fluid supply portion positioned at the front face, a rear face positioned opposite the front face and oriented toward a second direction opposite the first direction, at least one electrical interface positioned between the front face and the rear face, and an engagement surface facing in the second direction. The at least one electrical interface is offset from the printing supply portion with respect to a third direction perpendicular to the first direction and the second direction. The at least one electrical interface is positioned closer to the front face than the engagement surface is, and the at least one electrical interface and the engagement surface intersect a plane which is parallel with the first direction, the second direction, and the third direction.

A ROM unit mounted to a bottle has a plurality of terminal plates on the front end surface of the ROM unit. The ROM unit is movable in a direction orthogonal to a bottle axis Ax, and can be positioned at a retreat position where an interference with a contamination preventing eaves is avoided, and a contact position projected more front than the retreat position. The terminal plates can be electrically contacted with reservoir terminals when positioning at the contact position.

An ink bottle comprises a container main body configured to contain ink that is to be supplied to an ink tank, an ink outlet forming portion provided on an end of the container main body and configured to include an ink outlet that causes the ink to be flowed out from the container main body, and a valve provided in the ink outlet forming portion and configured to seal the ink outlet in an openable and closable manner. The ink outlet is formed in an end face of the ink outlet forming portion. The end face is arranged to face an opposite side of the ink outlet forming portion that is opposite to a container main body side thereof. A first recess is formed in an outer side portion of the ink outlet on the end face to be recessed toward the container main body side.

To provide an ink cartridge capable of accomplishing satisfactory electrical connection relative to a printer main assembly. An ink cartridge 1 detachably mountable to a cartridge mounting portion 33 provided with an ink receiving tube 52 and a plurality of electrical connecting portions 55, the ink cartridge 1 including a tube inserting portion 8 into which the receiving tube 52 is insertable, a substrate 3 provided on a front side 2c in a position above the tube inserting portion 8, a plurality of electrical contacts 4 electrically connectable with the plurality of electrical connecting portions 55, the electrical contacts 4 being arranged on the substrate 3 in a direction crossing with a direction from a bottom surface 2b toward an upper surface 2a

There is provided a technology which can improve the mounting posture of a liquid ejection apparatus when mounted to a liquid container. The liquid container is flexible and includes a storage portion configured to store the liquid and a connection member. The connection member is provided with a liquid outlet which is inserted with a liquid introduction portion, a container-side electrical connector which makes electrical contact with an apparatus-side electrical connection unit while receive at least +Z direction force from the apparatus-side electrical connection unit, a first receiver configured to receive a first positioning portion, a second receiver configured to receive a second positioning portion, and a recess which houses a protrusion of the case. The recess and the container-side electrical connector are formed at positions which at least partially overlap each other when viewed from a Z direction in a mounting state. In the mounting state, the width of the liquid container in the Z directions is larger than the width in the Y directions and the width in the X directions.

Replaceable print material supply cartridges for printers are disclosed herein. An example replaceable print material supply cartridge includes logic circuitry that is to determine a position of the replaceable print material supply cartridge by initiating a first voltage on a data contact during a time period, monitoring a timer without reference to a clock signal at a clock contact from a serial data bus, and maintaining a first voltage on the data contact for a duration of time. After expiration of the duration, the logic circuitry is to cause the data contact to assume a second voltage, different than the first voltage, and the logic circuitry is to read data from the memory and cause transmission of a data signal via the serial data bus interface.

A logic circuitry package for a replaceable print apparatus component includes an interface to communicate with a print apparatus logic circuit, and at least one logic circuit to transmit, via the interface, a sensor ID parameter and a limit parameter, the sensor ID parameter indicating a first sensor ID. The logic circuit is to receive, via the interface, a first request corresponding to the first sensor ID with the component connected to the apparatus and the apparatus not pneumatically actuating the component. The logic circuit is to transmit, via the interface, a first digital value in response to the first request. The logic circuit is to receive, via the interface, a second request corresponding to the first sensor ID with the component connected to the apparatus and the apparatus pneumatically actuating the component. The logic circuit is to transmit, via the interface, a second digital value in response to the second request. A difference between the first digital value and the second digital value is greater than the limit parameter.