Patent ID: 11934718
Assignee: SEIKO EPSON CORPORATION
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 0:
1. A printing apparatus comprising:
a printing section;
a first external communication interface;
a second external communication interface; and
a control section, wherein
the first external communication interface is a first USB port,
the second external communication interface is a second USB port, and
the control section is configured to
set a first state where the printing apparatus operates as a USB device when an external device coupled to the first USB port is a USB host,
set a second state where the printing apparatus operates as a USB host when an external device coupled to the second USB port is a USB device,
set a third state of supplying a first power amount of energy to an external device coupled to one of the first and second USB ports,
set a fourth state of supplying a second power amount of energy, which is greater than the first power amount, to the external device coupled to the one of the first and second USB ports,
perform a first setting for giving priority to one of the first and second states over the other one of the first and second states when the printing section is not performing printing, and
perform a second setting for giving priority to one of the third and fourth states over the other one of the third and fourth states when the printing section is not performing printing.