A supply item has toner for use in an imaging device. A chip has memory storing quanta indicating allowed usage of the supply item over its lifetime and a multiplier correlating the quanta to toner mass. The imaging device requires quanta to conduct imaging operations and loads the quanta and multiplier by way of a certificate stored in the memory. The imaging device retrieves quanta from the chip over time and both devices keep tally. Initialization between the supply item and imaging device includes providing encrypted and unencrypted instances of firmware versions and certificates from the supply item that the imaging device can compare for security. Alternatively, the supply item defines a fuser assembly, imaging unit, intermediate transfer member, or other component installed for use in the imaging device.

An ink contains water, an organic solvent, a polyurethane resin, and a cyclic ester including a structure represented by Chemical formula I, wherein the proportion of the cyclic ester having a crystal having a particle diameter of 1 μm or greater is less than 4 ppm of the total of the ink after the ink is allowed to stand at a temperature range of from 20 to 30 degrees C. for 30 days. ##STR00001##

Provided is an aqueous ink that has excellent ejection stability and that can be used to record an image with excellent abrasion resistance and an ink cartridge and an ink jet recording method that use the aqueous ink. The aqueous ink is an aqueous ink for ink jet containing a pigment, an organic solvent and a resin particle formed of a polyester resin or a urethane resin. The organic solvent includes a carbonate compound and the like. The ink cartridge includes an ink container configured to contain the aqueous ink and the ink jet recording method records an image on a recording medium by ejecting the aqueous ink from an ink jet recording head.

A recording apparatus includes a tank including a chamber configured to store liquid to be supplied to a recording head that ejects the liquid and a filling port from which the liquid is injected into the chamber, and an injection auxiliary member configured to assist injecting of the liquid into the chamber from the filling port, the injection auxiliary member including a first and a second flow channels each defined by a first or a second upper end portion that opens toward outside of the tank and a first or a second lower end portion that opens toward inside of the tank, wherein the second flow channel has an expansion portion arranged in a middle portion between the second upper end portion and the second lower end portion and configured to form a step to expand a cross-sectional area.

A wireless power transmission system includes a plurality of power transmitting antennas, a plurality of power receiving antennas, and a combiner configured to combine power transmitted to the power receiving antennas. At least one of a group of the plurality of power transmitting antennas and a group of the plurality of power receiving antennas is translated in a first direction relative to the other. During the translation, at least one of the power receiving antennas and at least one of the power transmitting antennas are coupled by one of an electric field and a magnetic field.

A mounting unit includes a mounting portion to which a liquid container that accommodates a liquid is mounted, in which the mounting portion has a liquid introduction portion that is inserted into the liquid container that is mounted to the mounting portion, and a first receiving portion that is provided below the liquid introduction portion, the first receiving portion has a first recess portion and a second recess portion, the liquid introduction portion extends in a direction opposite to a mounting direction that is a direction in which the liquid container moves when the liquid container is mounted to the mounting portion, and the second recess portion is provided at a position closer to a tip of the liquid introduction portion than the first recess portion is in the mounting direction.

A liquid storage container includes a container main body that is capable of storing a liquid and at least a portion of which includes a translucent outer wall; a support member that is integrally formed with the container main body; and a rotation member that is rotatably supported by the support member. The rotation member includes a float that rotates due to fluctuations in a liquid level of the liquid, and a display member that rotates in conjunction with the float and is capable of displaying a position of the float to an outside through the translucent outer wall.

In one embodiment a sub-assembly of components is provided to assemble a print liquid supply container, the set including a reservoir and a support structure to form a print liquid supply container, the container having a first, second and third dimensions, the support structure to at least partially surround and support the reservoir and to provide stiffness to the container, at least in a folded and mounted condition, the reservoir including a bag to hold the print liquid, being at least partially flexible to collapse for print liquid to be withdrawn from the reservoir, the bag being configured to inhibit fluid exchange, and a neck that is relatively narrow with respect to the bag in a filled state, with an opening to output print liquid from the bag.

The use of a magnetic particle based “PUF” (Physically Unclonable Function) disk, when read by magnetic sensor(s), as a positional encoder is described. It is often necessary to include a linear or rotary encoder within a device for tracking motor movements, or to enable a closed-loop control algorithm on the motor system. These randomly dispersed magnetic particle disks can be used as a positional encoder, where the speed of movement and the direction of movement may be monitored.

An ink contains water, a pigment, and a polymer having a structure unit represented by the following Chemical structure 1, ##STR00001## where R.sub.1 represents an organic group having at least carbon and oxygen.