Title:
LIQUID EJECTION DEVICE
Document Type and Number:
Japanese Patent JP2023145946
Kind Code:
A
Abstract:
To appropriately perform purge according to the number of anomalous nozzles when ejecting liquid from a plurality of nozzles forming a plurality of nozzle groups different in liquid ejecting condition for a nozzle due to the purge.SOLUTION: Color suction purge is performed by driving a suction pump while three nozzle arrays different in color of ink ejected from a nozzle are kept covered with a cap. If the respective numbers of anomalous nozzles in the nozzle arrays are Ay, Ac, Am and if at least one of a condition that the number Ay of the anomalous nozzles is equal to or greater than a threshold Hy, a condition that the number Ac of the anomalous nozzles is equal to or greater than a threshold Hc, a condition that the number Am of the anomalous nozzles is equal to or greater than a threshold Hm, and a condition that a total number Ag (=Ay + Ac + Am) of the anomalous nozzles is equal to or greater than a threshold Hg is satisfied (S105: YES), a color purge process is executed to perform the color suction purge (S106).SELECTED DRAWING: Figure 5
Inventors:
SASAKI ZENICHIRO
HORADE KENTA
HAYASHI MASAHIRO
DOTA RYUJI
TANAKA NOBUMASA
NAKASE TAKAFUMI
HORADE KENTA
HAYASHI MASAHIRO
DOTA RYUJI
TANAKA NOBUMASA
NAKASE TAKAFUMI
Application Number:
JP2022052870A
Publication Date:
October 12, 2023
Filing Date:
March 29, 2022
Export Citation:
Assignee:
BROTHER IND LTD
International Classes:
B41J2/01; B41J2/165
Attorney, Agent or Firm:
Patent Attorney Corporation ATEN