公开(公告)号：US20210268807A1

公开(公告)日：2021-09-02

申请号：US17180116

申请日：2021-02-19

Applicant: Seiko Instruments Inc.

Inventor： Yuichi YOSHIGI ,  Daisuke YOSHIDA ,  Yohei ISHIDOYA ,  Hiroaki KONDO

IPC: B41J2/355

Abstract: A thermal head control device includes: a printing rate calculation range determination unit configured to determine, as a printing rate calculation range, a range from a left-end energization dot to a right-end energization dot among energization dots present in printing data corresponding to heating elements to be controlled among a plurality of heating elements included in a thermal head; a printing rate calculation unit configured to calculate a printing rate of the printing rate calculation range determined by the printing rate calculation range determination unit; an energizing time calculation unit configured to calculate an energizing time for which a current is caused to flow through the heating elements based on the printing rate calculated by the printing rate calculation unit; and an output unit configured to output a control signal for driving the heating elements to be controlled of the thermal head, based on the calculated energizing time.

公开(公告)号：US20220222018A1

公开(公告)日：2022-07-14

申请号：US17571212

申请日：2022-01-07

Applicant: Seiko Instruments Inc.

Inventor： Yuichi YOSHIGI

IPC: G06F3/12

Abstract: A printing system includes: a conveyance controller configured to control a conveyor, the conveyor being configured to convey paper having a printing surface in which label portions are formed at predetermined intervals; a sensor configured to irradiate light on the paper conveyed by the conveyor to detect reflected light of the irradiated light; a detector configured to detect an output of the sensor; a moving average calculator configured to calculate moving averages of voltage values based on the output of the sensor detected by the detector; and a determiner configured to determine that a portion between an adjacent pair of the label portions has been detected based on the moving averages of the voltage values calculated by the moving average calculator, and the output of the sensor.