Information code reading device

1 . An information code reading device comprising:

a processor and a memory,

wherein the processor executes a program stored in the memory to:

perform reading processing by using electric power supplied from an external power supply through a cable;

wirelessly transmit a reading result to a predetermined external device;

determine whether power supply through the cable is shut off;

perform a predetermined notification using electric power supplied from a power storage circuit element in response to determination that the power supply is shut off, wherein

the reading processing is processing for optically reading an information code, and

the information code reading device comprises the power storage circuit element;

restrict a predetermined function of the information code reading device other than the predetermined notification and store function restriction information into the memory in response to determination that the power supply is shut off; and

restrict the predetermined function in a case where the function restriction information is stored in the memory at power-on of the information code reading device.

2 . The information code reading device according to claim 1 , wherein

the cable includes a power line for power supply and a signal line for transmitting a signal for detecting a state of connection with the external power supply, and

the processor executes a program stored in the memory to determine that the power supply is shut off in response to an interruption of the signal through the signal line.

3 . The information code reading device according to claim 1 , wherein

the memory stores a decoding key for reading the encrypted information code, and

the decoding key stored in the memory is deleted in response to determination that the power supply is shut off.

4 . The information code reading device according to claim 1 , wherein

the predetermined function is a function of wireless communication with another external device different from the predetermined external device to which the reading result is wirelessly transmitted before the power supply is shut off.

5 . The information code reading device according to claim 4 , wherein

the processor executes a program stored in the memory to cancel the restriction of the predetermined function in response to a restriction cancellation instruction received wirelessly from the predetermined external device.

6 . The information code reading device according to claim 1 , wherein

the predetermined function is at least one of a function of applying illumination light to an information code, a function of causing a light emitter to emit light, and a sound output function other than sound output function that the predetermined notification includes.

7 . The information code reading device according to claim 1 , wherein

the processor executes a program stored in the memory to cancel the restriction of the predetermined function in response to a restriction cancellation instruction.

8 . The information code reading device according to claim 7 , wherein

the restriction cancellation instruction is acquired by reading an information code in which information indicating the restriction cancellation instruction is recorded.

9 . The information code reading device according to claim 7 , wherein

the information code reading device includes an operation interface operated to start the reading processing, and

the restriction cancellation instruction is acquired by a predetermined operation on the operation interface.

10 . The information code reading device according to claim 1 , wherein

the processor executes a program stored in the memory to stop the predetermined notification in response to a notification stop instruction.

11 . The information code reading device according to claim 10 , wherein

the notification stop instruction is acquired by reading an information code in which information indicating the notification stop instruction is recorded.

12 . The information code reading device according to claim 1 , wherein

the processor executes a program stored in the memory to perform the predetermined notification by using electric power supplied from the power storage circuit element at any one of a first timing when the power supply is determined to have been shut off and a second timing when a predetermined time has elapsed from the first timing.

13 . The information code reading device according to claim 12 , wherein

the processor executes a program stored in the memory to:

in a case where no instruction has been given to delay the notification timing, perform the predetermined notification at the first timing by using electric power supplied from the power storage circuit element; and

in a case where an instruction has been given to delay the notification timing, perform the predetermined notification at the second timing by using electric power supplied from the power storage circuit element.

14 . The information code reading device according to claim 1 , wherein

the predetermined notification is an alarm sound that becomes louder in a stepwise manner.

15 . The information code reading device according to claim 1 , wherein

the predetermined notification includes wireless transmission to the predetermined external device.

16 . The information code reading device according to claim 1 , wherein

the processor executes a program stored in the memory to:

receive an instruction for power supply stop processing from the external power supply in response to stop of the power supply; and

perform the predetermined notification in response to the power supply shut-off without the instruction for power supply stop processing received.