公开(公告)号：US20190232664A1

公开(公告)日：2019-08-01

申请号：US16260187

申请日：2019-01-29

Applicant: SEIKO EPSON CORPORATION

Inventor： Hiroya FUKUTA ,  Takeshi YOSHIDA

IPC: B41J2/165

CPC classification number: B41J2/16523 ,  B41J2/16532 ,  B41J2/16538 ,  B41J2/16552 ,  B41J2/1721 ,  B41J2/2117 ,  B41J2002/16573 ,  B41J2002/16594

Abstract: A printer includes a head including a plurality of ink ejecting units for ejecting different types of inks from nozzles, a waste liquid flow path that is a flow path of ink sucked from the nozzles, a suction unit that performs an ink suction operation of sucking the ink from the nozzles of the ink ejecting units via the waste liquid flow path, and a cleaning operation of sucking the cleaning liquid from nozzles via the waste liquid flow path, and a control unit that controls the suction unit so as to vary a suction amount of the cleaning liquid depending on the type of the ink sucked by the ink suction operation when the cleaning operation is performed.

公开(公告)号：US20190232663A1

公开(公告)日：2019-08-01

申请号：US16260218

申请日：2019-01-29

Applicant: SEIKO EPSON CORPORATION

Inventor： Hiroya FUKUTA ,  Takeshi YOSHIDA

IPC: B41J2/165

Abstract: A printer includes a head including an ink ejecting unit for ejecting ink from a nozzle, a waste liquid flow path that is a flow path of ink sucked from the nozzle, a suction unit that performs an ink suction operation of sucking the ink from the nozzle via the waste liquid flow path, and a cleaning operation of sucking cleaning liquid from the nozzle via the waste liquid flow path, and a control unit that controls the suction unit so as to vary a suction amount of the cleaning liquid depending on an elapsed time from when the ink suction operation is performed, when the cleaning operation is performed.

公开(公告)号：US20190263137A1

公开(公告)日：2019-08-29

申请号：US16283899

申请日：2019-02-25

Applicant: SEIKO EPSON CORPORATION

Inventor： Hiroya FUKUTA ,  Takeshi YOSHIDA

IPC: B41J2/18 ,  B41J2/175

Abstract: A printer device includes: an ink circulation flow path in which ink is circulated; a discharge head that discharges the ink supplied from the ink circulation flow path; a circulation pump and a circulation motor that circulate the ink in the ink circulation flow path; a circulation filter provided in the ink circulation flow path; and control unit that determines a blocked state of the circulation filter and performs drive control of the circulation motor in accordance with a determination result, and the control unit drives the circulation motor in a first mode until it is determined that the circulation filter is in a blocked state, and after it is determined that the circulation filter is in a blocked state, the control unit drives the circulation motor in a second mode that provides a smaller circulation rate than the first mode.