Abstract: An inkjet recording device includes a main body unit, a print head unit, and a head mounting unit. The main body unit includes an ink container. The print head unit includes a nozzle connected to the ink container. The head mounting unit is configured to allow the print head unit to be mounted on the head mounting unit. The head mounting unit includes a head detection unit that detects whether or not the print head unit is mounted, using a magnetic force.

Abstract: An object of the present invention is to reduce the amount of solvent vapor floating around when a print head is cleaned in an inkjet recording device. In addition, an object is to reduce ink stains on a periphery of the print head. An inkjet recording device includes a main body portion and a print head. The main body portion includes an ink container that contains ink, and a solvent container that contains a solvent. The print head includes a nozzle connected to the ink container to discharge the pressurized and supplied ink, a charging electrode that charges ink particles discharged from the nozzle, a deflection electrode that deflects the ink particles charged by the charging electrode, and a gutter that collects the ink. In addition, a head mounting unit for cleaning the print head is provided. The head mounting unit is connected to a solvent vapor suction path for suctioning solvent vapor generated therearound.

Abstract: An inkjet recording device having a print head cleaning function of preventing a cleaning liquid from spilling around the inkjet recording device and storing the cleaning liquid used for cleaning in a highly airtight container. The inkjet recording device includes a main body including an ink container accommodating an ink used to perform printing on a print target, and a cleaning liquid container that accommodates a cleaning liquid; a print head including a nozzle that is connected to the ink container to discharge the ink which is pressurized and supplied, a charging electrode that charges ink particles, a deflection electrode that deflects the ink particles charged by the charging electrode, and a gutter that recovers the ink particles which are not used for the printing; and a head cleaning unit including a cleaning nozzle that discharges the cleaning liquid, and an insertion port into which the print head is insertable.

Abstract: A trophoblast stem cell-like cell having potential to differentiate into a placenta-constituting cell which is induced from a trophoblast cell derived from a placenta of or after the second trimester of pregnancy and which contains a SALL4 gene functionally linked to a first exogenous inducible promoter. Also, a method for producing a trophoblast stem cell-like cell having potential to differentiate into a placenta-constituting cell.

Abstract: The present invention provides an inkjet recording device capable of automatically cleaning the head tip and a cleaning method for inkjet recording apparatus. An inkjet recording apparatus has a printhead that receives a supply of ink and prints, a main unit that supplies said ink to said printhead, and a cleaning unit that has a cleaning tank into which said entire printhead is inserted and injects a cleaning solution from a cleaning nozzle to said printhead for cleaning. The cleaning unit has a cleaning nozzle that sprays cleaning liquid into the cleaning tank and a cleaning base section that has a housing section that accommodates the tip of the printhead and allows said cleaning liquid to flow into the housing section. The cleaning liquid is allowed to flow into the housing section to clean the tip of the printhead.

Abstract: An ink jet recording apparatus includes an ink container in which ink to be used to perform printing on a print target is stored, a nozzle which is connected to the ink container and from which pressurized and supplied ink is jetted, charging electrodes that charge ink particles jetted from the nozzle with electricity, deflecting electrodes that polarize the ink particles charged with electricity by the charging electrodes, a gutter that recovers ink not used for printing, a solvent container in which a solvent is stored, and a liquid nozzle which is connected to the solvent container and from which a pressurized and supplied solvent is jetted. The liquid nozzle includes a liquid flow passage portion that extends from the nozzle in a direction of the gutter, and a liquid jet hole that is formed at an angle allowing the pressurized and supplied solvent to hit the nozzle through the liquid flow passage portion.

Abstract: An inkjet recording device and a method for controlling an inkjet recording device are provided. A heating device that heats the ink to be supplied to a nozzle immediately ahead of the nozzle, a thermometer that detects a temperature of the ink inside the heating device or after heating, a viscometer that detects a viscosity of the ink in a main ink container are provided. The heating device is driven using a detection value of the thermometer to control the temperature of the ink such that the viscosity reaches an ink viscosity which enables normal printing, and when the viscosity of the ink is out of a range which enables printing, the solvent or the replenishment ink is supplied to the main ink container using a detection value of the viscometer such that the viscosity reaches the range which enables normal printing.

Abstract: A cell derived from a pluripotent stem cell and that is capable of differentiating into a placenta-forming cell, and that is negative for BRDT, and positive for TP63. A method for producing a cell capable of differentiating into a placenta-forming cell, the method including the steps of: (a) culturing a pluripotent stem cell of a mammal with a medium containing bone morphogenetic protein 4; and (b) culturing the cell after the step (a) with a medium containing a growth factor and a ROCK inhibitor.

Abstract: Provided is an inkjet recording device capable of facilitating cleaning of a print head, and easily recovering a solvent (cleaning liquid) that is used for cleaning. An inkjet recording device includes a print head that receives a supply of ink to perform printing; and a main body that includes an ink container to contain the ink and a solvent container to contain a solvent, and that supplies the ink in the ink container to the print head. Further, the inkjet recording device includes a cleaning tank, a cleaning nozzle, and a recovery container. Then, the print head is set inside the cleaning tank, the solvent is sprayed from the cleaning nozzle to clean the print head, and the solvent after cleaning is recovered by the recovery container.

Abstract: An inkjet recording device and a method for controlling an inkjet recording device are provided. A heating device that heats the ink to be supplied to a nozzle immediately ahead of the nozzle, a thermometer that detects a temperature of the ink inside the heating device or after heating, a viscometer that detects a viscosity of the ink in a main ink container are provided. The heating device is driven using a detection value of the thermometer to control the temperature of the ink such that the viscosity reaches an ink viscosity which enables normal printing, and when the viscosity of the ink is out of a range which enables printing, the solvent or the replenishment ink is supplied to the main ink container using a detection value of the viscometer such that the viscosity reaches the range which enables normal printing.

Abstract: An object of the present invention is to provide an inkjet recording device having a print head cleaning function of preventing a cleaning liquid from spilling around the inkjet recording device and storing the cleaning liquid used for cleaning in a highly airtight container.

Abstract: An ink jet recording apparatus includes an ink container in which ink to be used to perform printing on a print target is stored, a nozzle which is connected to the ink container and from which pressurized and supplied ink is jetted, charging electrodes that charge ink particles jetted from the nozzle with electricity, deflecting electrodes that polarize the ink particles charged with electricity by the charging electrodes, a gutter that recovers ink not used for printing, a solvent container in which a solvent is stored, and a liquid nozzle which is connected to the solvent container and from which a pressurized and supplied solvent is jetted. The liquid nozzle includes a liquid flow passage portion that extends from the nozzle in a direction of the gutter, and a liquid jet hole that is formed at an angle allowing the pressurized and supplied solvent to hit the nozzle through the liquid flow passage portion.

Abstract: An ink jet recording apparatus includes an ink container in which ink to be used to perform printing on a print target is stored, a nozzle which is connected to the ink container and from which pressurized and supplied ink is jetted, charging electrodes that charge ink particles jetted from the nozzle with electricity, deflecting electrodes that polarize the ink particles charged with electricity by the charging electrodes, a gutter that recovers ink not used for printing, a solvent container in which a solvent is stored, and a liquid nozzle which is connected to the solvent container and from which a pressurized and supplied solvent is jetted. The liquid nozzle includes a liquid flow passage portion that extends from the nozzle in a direction of the gutter, and a liquid jet hole that is formed at an angle allowing the pressurized and supplied solvent to hit the nozzle through the liquid flow passage portion.

Abstract: Provided is an inkjet recording device, including a print head that includes a head base including: a nozzle from which ink is ejected; charging electrodes that charge the ink ejected from the nozzle; deflection electrodes that deflect the ink charged by the charging electrodes; and a gutter that collects ink not used in printing, and a head cover included in the head base, wherein the head base has a first horizontal uneven side portion, an oblique uneven side portion, and a second horizontal uneven side portion.

Abstract: A makeup fluid is added to an ink liquid of an inkjet printer to reduce the viscosity of the ink liquid, the makeup fluid including a fluorescent color material in a solvent. An inkjet printer apparatus employing a makeup fluid is provided with a makeup fluid tank to which a light-emitting element and a light-receiving element are attached, and detects the presence or absence of the makeup fluid by irradiating ultraviolet light from the light-emitting element, causing visible light to be emitted from the fluorescent color material in the makeup fluid, and detecting the visible light with the light-receiving element.

Abstract: An inkjet recording apparatus, which can enhance the reliability of the phase search result to detect the optimal timing when the ink particles are electrically charged by the electrification electrode and secure the stable printing quality, is provided.

Abstract: The purpose of the present invention is to provide an inkjet recording device that is capable of minimizing contamination, by floating ink, of the inside and outside of a print head without increasing the volatilization volume of a solvent. In order to attain the purpose, provided is an inkjet recording device having: a nozzle which applies print onto a printing medium by discharging ink; and a print head which houses therein a deflection electrode for deflecting the discharged ink by means of an electrostatic force, the inkjet recording device being provided with an ink suction unit which sucks in floating ink by means of the electrostatic force.

Abstract: An ink jet recording apparatus includes an ink container in which ink to be used to perform printing on a print target is stored, a nozzle which is connected to the ink container and from which pressurized and supplied ink is jetted, charging electrodes that charge ink particles jetted from the nozzle with electricity, deflecting electrodes that polarize the ink particles charged with electricity by the charging electrodes, a gutter that recovers ink not used for printing, a solvent container in which a solvent is stored, and a liquid nozzle which is connected to the solvent container and from which a pressurized and supplied solvent is jetted. The liquid nozzle includes a liquid flow passage portion that extends from the nozzle in a direction of the gutter, and a liquid jet hole that is formed at an angle allowing the pressurized and supplied solvent to hit the nozzle through the liquid flow passage portion.

Abstract: The purpose of the present invention is to provide an inkjet recording device that is capable of minimizing contamination, by floating ink, of the inside and outside of a print head without increasing the volatilization volume of a solvent. In order to attain the purpose, provided is an inkjet recording device having: a nozzle which applies print onto a printing medium by discharging ink; and a print head which houses therein a deflection electrode for deflecting the discharged ink by means of an electrostatic force, the inkjet recording device being provided with an ink suction unit which sucks in floating ink by means of the electrostatic force.

Abstract: An inkjet recording apparatus, which can enhance the reliability of the phase search result to detect the optimal timing when the ink particles are electrically charged by the electrification electrode and secure the stable printing quality, is provided.