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.

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.

In one example, a group of printing fluid cartridges in which each cartridge includes: a reservoir; a printing fluid outlet from the reservoir; multiple electrical contacts arranged next to one another across the cartridge with an interface along the cartridge between each pair of adjacent electrical contacts; and multiple guideways next to the electrical contacts lengthwise and configured to align the cartridge to a receiver when the cartridge is installed in the receiver. Each of the guideways spans exactly one of the interfaces widthwise and is configured to simultaneously align the electrical contacts to corresponding electrical contacts on a receiver and to discriminate the cartridge from other printing fluid cartridges to prevent the cartridge from being inserted incorrectly into a receiver.

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.

A liquid cartridge is configured to be inserted into a liquid consuming apparatus in a first direction along a horizontal direction against an urging force directed in a second direction opposite the first direction, and thereby to be mounted to the liquid consuming apparatus. The liquid cartridge is configured to pivot about a pivot center in the liquid consuming apparatus. The liquid cartridge includes a rear face, and the rear face includes a first portion and a second portion positioned further in an upward direction than the first portion. The first portion includes a portion positioned further in a downward direction than the pivot center, and the first portion is positioned further in the first direction than the second portion.

The present invention provides a method for controlling light emission of an ink cartridge, a control unit, a circuit board, an ink cartridge and an imaging device, to decrease misjudgment rate of the imaging device. The control method includes: receiving and identifying a light emitting control instruction from the imaging device main body; starting a light-on delay timing when identifying the light emitting control instruction is a light-on instruction; controlling the light emitting unit of the ink cartridge to stop emitting light when identifying the light emitting control instruction is a light-off instruction; controlling the light emitting unit to emit light when detecting a timing value of the light-on delay timing reaches a delay threshold value. The present invention avoids misjudgment problem of unable to pass position detection due to light amount inconsistent caused by manufacturing errors of the light emitting unit, when setting a light-on delay timing.

A terminal for making a hydraulic, electrical, or optical connection in an ink jet printing machine. The terminal extends along an axis XX′, and its external surface includes: a cylindrical portion, including a contact end and having a first diameter (d1), this end being provided with hydraulic or electrical or optical connection structure. The external surface also includes a collar, having a diameter (d2) higher than the first diameter (d1), and a throat, the bottom of which has a cross-section, in a plane perpendicular to the axis XX′, having at least one arc of circle portion having a third diameter (d3) lower than that of the collar, at least one planar part, and a part of this cross-section having a width lower than the third diameter. The throat continues with a connection device, for connecting to at least one hydraulic conduit or one electrical cable or one optical fiber.

A cartridge includes a cartridge side terminal electrically coupled to a device side terminal, a liquid supply portion that is coupled to a liquid introduction portion and that makes a liquid flow to the liquid introduction portion, a terminal positioning portion that performs positioning by receiving a device side terminal positioning portion to regulate movement of the cartridge side terminal with respect to the device side terminal, and a supply portion positioning portion that performs positioning by receiving a device side supply portion positioning portion to regulate movement of the liquid supply portion with respect to the liquid introduction portion. A first direction is a direction intersecting a second direction, the first direction being a direction in which the terminal positioning portion extends, the second direction being a direction in which the supply portion positioning portion extends.