Printing Device and Control Method of a Printing Device

摘要

A printing device that and a control method of the printing device enable supplying power to a connected external device without affecting operation of the printing device. A thermal printer 1 has a USB connector 15 that connects to a smart device 2; a power supply circuit 14; a print mechanism 17 that operates using power supplied from the power supply circuit 14; a communicator 16 that communicates with the smart device 2; and a controller 11 that receives a command to start or stop operation of the print mechanism 17 from the smart device 2 through the communicator 16, and controls the power supply to the smart device 2 from the power supply circuit 14 according to the timing when operation of the print mechanism 17 starts and stops.

主权项

1. A printing device configured to communicate with an external device and supply power to the external device, the printing device comprising:
a power supply; an operator configured to operate using power supplied from the power supply; a communicator configured to receive a first command from the external device, the first command instructing operation of the operator; a connector configured to connect and supply power to the external device; and a controller configured to process the first command received by the communicator, and control the power supply to change an amount of power supplied to the external device,
the controller changing the amount of power supplied to the external device before processing the first command when the first command is received by the communicator.