Seiko Epson Corporation

Takuto Mori

Toru Matsuyama

Katsuo Takeuchi

A printing apparatus includes a printing section performing printing, and a USB-Type-C interface configured to perform switching to a first state in which a printing operation is executed or a second state in which the power is supplied to the external device. The USB-Type-C interface includes a state identification terminal held at a first potential indicating that the USB-Type-C interface is coupled in the first state or a second potential indicating that the USB-Type-C interface is coupled in the second state. The state identification terminal is periodically switched between the first potential and the second potential during a unit time when the external device is not coupled to the USB-Type-C interface, and in the unit time, a time at which the state identification terminal is held at the second potential is longer than a time at which the state identification terminal is held at the first potential.

Printing apparatus

A printing apparatus includes: a printing section including a plurality of printing elements that performs printing on a medium; a power supply circuit supplying power to the printing section; a control circuit controlling the printing section and the power supply circuit; and a USB-Type-C interface configured to couple an external device and including a data transmission/reception terminal, a power input/output terminal, and a state identification terminal. When the state identification terminal detects that the external device that receives the power via the power input/output terminal is coupled, and the printing section performs printing, an amount of power supplied to the external device is large in a case in which a drive rate of the plurality of printing elements is low as compared with a case in which the drive rate of the plurality of printing elements is high.

Growing community of inventors

Nagano, Japan

Takuto Mori