Abstract: An equipment monitoring system includes an unmanned vehicle, an alarm circuit remote from the unmanned vehicle, and a vehicle control circuit remote from the unmanned vehicle. The unmanned vehicle can include a communications circuit and a flight controller. The alarm circuit detects a failure condition of a building component and outputs an indication of the failure condition. The vehicle control circuit receives the indication of the failure condition from the alarm circuit; generates, based on the indication of the failure condition, an equipment verification signal that includes an identifier of the building component, a position of the building component, and a test of the building component to be executed; and transmits the equipment verification signal to the flight controller of the unmanned vehicle via the communications circuit of the unmanned vehicle to cause the unmanned vehicle to execute the test of the building component.

Abstract: In a method of manufacturing a liquid ejection head including transferring a dry film for forming a partial structure of a liquid ejection head from a support to a substrate, the dry film with the support is bonded on a processing surface of the substrate with forming a projection part in which peripheral edges of the dry film and the support protrude further outside than a peripheral edge of the processing surface; the projection part is cut at a cutting position between an outer edge of the projection part and the peripheral edge of the processing surface to form a remaining projection part, and the support is peeled from the substrate with the remaining projection part as a start position to leave the dry film on the processing surface which forms the partial structure of the liquid ejection head.

Abstract: Provided is an ink treatment solution set including: an ink composition that is water-based ink jet ink containing a coloring material; and a treatment solution that contains a coagulant, is ejected from an ink jet head, and is used for recording, in which any one of the ink composition and the treatment solution has a dynamic surface tension of greater than 32.0 mN/m and less than 36.0 mN/m at 10 ms and has a difference of equal to or greater than 6.0 mN/m and equal to or less than 10.0 mN/m between the dynamic surface tension at 10 ms and a dynamic surface tension at 1000 ms, an other one of the ink composition and the treatment solution has a dynamic surface tension of greater than 34.5 mN/m and less than 36.5 mN/m at 10 ms and has a difference of equal to or greater than 8.0 mN/m and equal to or less than 10.0 mN/m between the dynamic surface tension at 10 ms and a dynamic surface tension at 1000 ms, and the ink treatment solution set is used for recording on a poorly absorbable recording medium.

Abstract: In one example in accordance with the present disclosure, a fluid extraction system is described. The fluid extraction system includes an interface to fluidically and electrically couple a removable extraction reservoir to a printing device. A return line of the fluid extraction system is to connect the interface and a reservoir of the printing device. The fluid extraction system includes a switch to 1) responsive to attachment of the removable extraction reservoir to the printing device, open the return line to direct fluid form the reservoir to the interface and 2) responsive to removal of the removable extraction reservoir from the printing device, close the return line.

Abstract: In a method for monitoring a pump arranged in a flow path to pump a fluid, the temperature of a fluid is regulated by a tempering element during the operation of the pump. The regulation of the temperature may include detecting at least one status point which is formed from an energy supplied to the tempering element and a temperature slope of the tempering element. The status point may be determined in a hazard range by checking whether the status point is located outside of a normal status range, which means that the lifespan of the pump is limited.

Abstract: An ink jet recording method according to the present disclosure is a method for recording on a textile including ejecting a white ink composition for ink jet textile printing containing a white pigment and water with an ink jet recording apparatus, wherein the white ink composition is ejected as 9 ng or less of droplets from a nozzle, and the droplets are ejected and recorded on the textile such that a droplet ejected later has a higher flight speed than a droplet ejected earlier and the droplets coalesce before landing on the textile.

Abstract: Provided is an inkjet head including a plurality of ink dischargers, a first common ejection flow path, and a second common ejection flow path. Each of the ink dischargers includes an ink storage, a pressure changer, a nozzle, and a first individual ejection flow path and a second individual ejection flow path that communicate to the ink storage and through which ink is ejected from fee ink storage but not supplied to the nozzle. The first common ejection flow path communicates to a plurality of first individual ejection flow paths of the respective plurality of the ink dischargers, and the second common ejection flow path communicates to a plurality of second individual ejection flow paths of the respective plurality of fee ink dischargers.

Abstract: A liquid ejection head includes a supply channel structure and a heater. The supply channel structure has a supply channel configured to allow liquid to flow therefrom to ejection channels that are configured to lead liquid to nozzles aligned in a first direction. The heater is configured to heat liquid. Assuming that a side of the liquid ejection head, in which the nozzles are provided, is defined as a lower side of the liquid ejection head, the heater is disposed above the supply channel structure.

Abstract: Fluid feed paths having enhanced wettability characteristics are disclosed. An example printhead includes a nozzle to expel fluid therefrom, and a fluid feed path to fluidly couple a fluid source and the nozzle. Fluid feed path walls are composed of a first material having a first wettability characteristic and a second material having a second wettability characteristic. The second wettability characteristic differing from the first wettability characteristic. A coating is formed on at least a portion of the fluid feed path defined by the first material and the second material of the substrate. The coating to harmonize the first wettability characteristic and the second wettability characteristic.

Abstract: A curing station for curing printing ink of a direct print on containers, comprising a conveyor for conveying the containers preferably in container holders, and further comprising at least one UV light unit for curing the printing ink, characterized in that the at least one UV light unit comprises a 2D arrangement of UV LEDs for generating a UV light field for curing the printing ink.

Abstract: A member mountable to a mounting portion provided with an ink receiving tube and a plurality of electrical connecting portions, the member includes a first portion including an outwardly facing surface and provided with an inserting portion into which the ink receiving tube is capable of being inserted; a second portion opposite from the first portion; and a third portion connecting the first portion and the second portion with each other and provided with a plurality of pad electrodes electrically connectable with the electrical connecting portions. The member is mountable to the mounting portion by being inserted into the mounting portion in an inserting direction with the first portion at a leading side. The pad electrodes are electrically connectable with the electrical connecting portions by being moved in a direction different from the inserting direction.

Abstract: Blood pressure detection signal sampling and compensation methods and apparatuses, and an example blood pressure signal collection system are described. One example method described includes controlling an electrocardiogram (ECG) sampling module and a photoplethysmogram (PPG) sampling module to simultaneously sample a standard periodic signal. Sampling frequencies and sampling end times are separately obtained. A sampling start time and a sampling frequency of the ECG sampling module or the PPG module is then compensated so that a sampling frequency deviation is less than a preset frequency threshold and a sampling end time difference is less than a preset time threshold.

Abstract: An inkjet print apparatus includes a print head discharging ink onto a substrate, the print head including a first heater; a reservoir storing the ink; a first pipe supplying the ink to the reservoir; a second pipe collecting surplus ink; a mixing unit located on the first pipe and mixing the ink; a pump located on the second pipe and pressurizing and supplying the surplus ink to the reservoir; a temperature sensor located between the mixing unit and the print head and sensing a temperature of the ink; and a controller controlling a temperature of at least one of the first heater and the second heater in response to information received from the temperature sensor. The print head includes a heat insulator blocking heat emitted from the first heater between the substrate and the first heater.

Abstract: A printing apparatus includes a print head provided with a discharge port that discharges liquid and a pressure chamber filled with the liquid to be discharged from the discharge port, and configured to perform a printing operation by discharging the liquid from the discharge port based on print data, includes a circulation unit that performs circulation of the liquid in a circulation passage including the pressure chamber in a state where the printing operation is performed, and includes a control unit that controls the circulation unit to continue the circulation for a predetermined time after the printing operation is completed.

Abstract: A liquid ejection device includes: a nozzle configured to eject a liquid; an airflow introduction member configured to introduce an airflow to the liquid; a liquid feeding pump configured to adjust a pressure of the liquid; a pressure pump configured to adjust an introduction pressure of the airflow introduced by the airflow introduction member; and a processor configured to control driving of the liquid feeding pump and the pressure pump, and the processor controls a ratio of the introduction pressure of the airflow to an ejection pressure of the liquid to be 0.005 or more and 0.11 or less.

Abstract: A liquid ejection device includes a liquid ejection head which ejects a first liquid, and a liquid supply unit. The liquid ejection head includes a plurality of liquid discharge holes with individual passages and a common passage for supplying the first liquid to the individual passages. The liquid supply unit includes a pressure chamber, a first supply passage communicating with the pressure chamber, and a second supply passage that makes an upstream side of a common passage communicate with the pressure chamber, a liquid drain path that makes a downstream side of the common passage communicate with the second supply passage, and a pump mechanism. The pump mechanism supplies the first liquid to the upstream side and the downstream side of the common passage through the second supply passage and the liquid drain path, and discharges the second liquid, which is filled in advance, from the liquid discharge hole.

Abstract: An ink delivery system for at least one printing module comprising a closed-loop ink recirculation circuit and a vacuum discharge circuit, which is configured to produce a vacuum condition in the at least one printing module. A method for delivering ink to the at least one printing module is also disclosed.

Abstract: A printing apparatus includes a head unit having a support portion configured to support a plurality of heads capable of discharging a droplet in a discharge direction, and a carriage on which the head unit is removably mounted from upstream in the discharge direction, wherein the carriage has a bottom formed with an opening from which a nozzle surface of the head for discharging the droplet is exposed, the support portion is provided with at least one protruding portion protruding from a bottom surface of the support portion in the discharge direction, and the bottom is provided with an insertion hole through which the at least one protruding portion is inserted, and a biasing member biasing the support portion in an intersecting direction intersecting with the discharge direction in a state where the at least one protruding portion is inserted through the insertion hole.

Abstract: This disclosure describes integrated circuits which may be provided in logic circuitry packages and/or replaceable print apparatus components with print material reservoirs. An integrated circuit or logic circuitry package for a replaceable print apparatus component comprises an interface to communicate with a print apparatus logic circuit and at least one logic circuit.

Abstract: An example of an apparatus is provided. The apparatus includes a feeder tank to provide print fluid to a nozzle. The feeder tank is disposed below the nozzle to maintain a backpressure. The apparatus also includes a vent port to vent the feeder tank to atmosphere. The apparatus further includes an overflow chamber in fluidic communication with the feeder tank. The overflow chamber is disposed below the nozzle. In addition, the apparatus includes a return channel disposed on the overflow chamber to allow print fluid in the overflow chamber to return to the feeder tank.