An apparatus and method configured to eject an electrically charged liquid. The apparatus and method include a liquid-ejecting apparatus including a reservoir for storing a liquid, an electrically conductive faceplate for ejecting the liquid, a plurality of channels connecting the reservoir to the electrically conductive faceplate, and a voltage source to change and maintain an electric potential difference between the liquid and the electrically conductive faceplate during ejection from the electrically conductive faceplate.

The present disclosure relates to the field of display technology, and provides an inkjet assembly, an inkjet printing apparatus and an inkjet printing method. The inkjet assembly includes at least one jet printing member having a first surface on which an inkjet port is formed. The inkjet assembly further includes a deflection member configured to provide a deflection force to a fluid emitted from the inkjet port and a control member configured to control operation of the deflection member.

A method is provided for cleaning a print head, wherein the print head includes a cavity for the circulation of jets and at least one first spraying nozzle for projecting at least one cleaning fluid towards at least one inner portion of the cavity. The method includes the step of projecting, using the first spraying nozzle, several pulses of cleaning fluid towards the inside of the cavity.

A method is provided for cleaning a print head, wherein the print head includes a cavity for the circulation of jets and at least one first spraying nozzle for projecting at least one cleaning fluid towards at least one inner portion of the cavity. The method includes the step of projecting, using the first spraying nozzle, several pulses of cleaning fluid towards the inside of the cavity.

An ink jet recording apparatus includes a charging electrode that charges ink particles ejected from a nozzle, a deflecting electrode that deflects the ink particles charged by the charging electrode, an operating unit that inputs and sets printing conditions for performing the printing, and a control unit, and the control unit receives a moving distance in a direction in which a printing target is conveyed from the operating unit, calculates the number of non-printing particles on the basis of the moving distance, and performs control for changing to a dot pattern in which the number of non-printing particles are inserted.

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.

The print head cover (83) of an electrostatic deflection inkjet printer is made of a material having an electrical surface resistivity of no more than 10.sup.12 ohms per square or an electrical volume resistivity of no more than 10.sup.9 ohm metres and is electrically connected to an earth line (93, 97). This prevents build-up of electric charge on the cover (83). The resistance from the surface of the cover (83) to a place where a cover earth line (93) joins a signal earth line (97) or enters the umbilical (7) is at least 16000 times the resistance from that place to earth. This prevents an electrostatic discharge to the cover (83) disrupting the electronic circuits. The high resistance earth connection for the cover (83) avoids the need for an earthing wire braid in the umbilical (7). The cover (83) may be moulded from an antistatic or static dissipative material.

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.

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.

To realize high-quality printing with less printing distortion by reducing an influence of a Coulomb force that acts between ink particles which are ejected in an inkjet recording device. The inkjet recording device is configured to charge ink particles ejected from a nozzle, deflect the charged ink particles, and print a character in a shape of an object to be printed. In the inkjet recording device, dots of each column of the character to be printed are divided into a plurality of blocks in a column direction. In addition, charging voltage data in which the order of the ink particles corresponding to the dots is switched in the divided block unit is stored, and a predetermined charging voltage is applied to the charging electrode on the basis of the charging voltage data.