A printer connected to an external host device and a peripheral device, the printer comprising: a power generation circuit configured to supply a preset drive voltage required for an operation of the peripheral device to the peripheral; a drive circuit configured to operate the peripheral device with the drive voltage in response to input of a drive signal; a control circuit configured to output the drive signal to the drive circuit to operate the drive circuit only in a preset drive period during which the drive circuit operates; and a communication circuit connected to the control circuit and configured to receive data input from the external host device.