Patent ID: 11904609
Assignee: TOSHIBA TEC KABUSHIKI KAISHA
Field: Textile and paper machines (Mechanical engineering)
Classification: CPC B | IPC B

Claim 15:
16. An inkjet printer for printing using a solvent-based glass ink, comprising:
an inkjet head including:
a pressure chamber in which the ink is to be stored,
a nozzle plate including a nozzle which connects to the pressure chamber,
an actuator configured to change a volume of the pressure chamber, and
a drive circuit configured to, before printing is performed:
output, to the actuator for a first time period, a first signal for changing the volume of the pressure chamber such that the ink forms a meniscus in the nozzle without being ejected from the nozzle,
after outputting the first signal, output, to the actuator for a second time period, a second signal for changing the volume of the pressure chamber such that the ink inside the pressure chamber is ejected from the nozzle, wherein the second time period is a time period required for the ink that has formed the meniscus to be ejected from the nozzle, and
after outputting the second signal, output, to the actuator for a third time period, a third signal for changing the volume of the pressure chamber to the extent that the ink is not ejected from the nozzle; and

a processor configured to control the inkjet head to print an image on a sheet through the printing after the first, second, and third signals are output, wherein
a length of each of the first and third time periods is determined based on a half of a characteristic vibration period of the ink and a particular coefficient.