Patent ID: 11934719
Assignee: CANON KABUSHIKI KAISHA
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G  B  H | IPC B  G

Claim 15:
16. A printing system comprising:
a printing apparatus that has, as power modes, (i) a first power mode in which the printing apparatus is supplied with power from a battery, (ii) a second power mode in which the printing apparatus is supplied with power from both the battery and an external power supply, and (iii) a third power mode in which the printing apparatus is supplied with power from the external power supply and not from the battery, and performs printing in any of the first power mode, the second power mode, and the third power mode;
a display unit; and
a control unit that, in a case where an amount of power supplied from the external power supply is equal to or greater than a predetermined value, controls the printing apparatus to perform printing in the third power mode and causes the display unit to indicate that the number of sheets that the printing apparatus can print is infinite.