公开(公告)号：US20220134781A1

公开(公告)日：2022-05-05

申请号：US17519774

申请日：2021-11-05

Applicant: SEIKO EPSON CORPORATION

Inventor： Takehiro KOBAYASHI ,  Hitoshi ISHINO ,  Rikuo YAMADA

IPC: B41J11/42 ,  B41J2/32

Abstract: A printing device includes: a printing unit printing on a recording paper; a feeder unit that has a roller rotating in a first direction about a shaft and feeding the recording paper, and a motor rotating the shaft; a detection unit detecting a rotation of the shaft in the first direction and a rotation thereof in a second direction opposite to the first direction; and a control unit controlling the feeder unit, based on the rotation of the shaft detected by the detection unit. The control unit causes the motor of the feeder unit to rotate the shaft in the first direction and then stop the shaft, and subsequently causes the motor to rotate the shaft in the first direction before the printing unit prints, based on the rotation of the shaft in the second direction detected by the detection unit.

公开(公告)号：US20220153043A1

公开(公告)日：2022-05-19

申请号：US17529628

申请日：2021-11-18

Applicant: SEIKO EPSON CORPORATION

Inventor： Hitoshi ISHINO ,  Takehiro KOBAYASHI ,  Masanori YUMOTO

IPC: B41J13/10 ,  B41J29/393

Abstract: A printing device includes: a printing unit printing on a recording paper; a feeder unit having a roller that rotates about a shaft and feeds the recording paper and a motor that rotates the shaft; a detection unit detecting the rotation of the shaft; and a control unit controlling the printing unit. The control unit calculates an electrifying time during which the printing unit is electrified and a non-electrifying time during which the printing unit is not electrified following the electrifying time, based on a detection signal from the detection unit. When the calculated non-electrifying time is less than a predetermined time, the control unit corrects the non-electrifying time in such a way that the non-electrifying time becomes equal to or longer than the predetermined time, and causes the printing unit to print.