Log-in control apparatus, control method of log-in control apparatus, and information terminal

An information terminal which is attached to a carrier for carrying a commodity to be purchased and inputs information of the commodity to be purchased for registration of the commodity to be purchased, the information terminal comprising:

• a sensor which is attached to the carrier and detects whether or not the commodity is placed on the carrier, and then outputs a detection result accordingly;
• a touch panel which accepts an operation for log-in to the information terminal to input information for log-in;
• a memory which stores a program to control the operation for log-in to the information terminal;
• and
• a processor which executes the program to:
• detect whether or not the operation for log-in has been received by the touch panel,
• when it is detected that the operation for log-in has been received by the touch panel, determine, based on the detection result of the sensor, whether or not the commodity has been placed on the carrier,
• display, when the operation for log-in is detected, guidance on the touch panel indicating that the operation for log-in is ineffective if the commodity is determined to have been placed on the carrier,
• after displaying the guidance, detect whether or not the operation for log-in has been received by the touch panel again,
• perform, when the operation for log-in is detected, approval processing of the information for log-in if the commodity is not determined to have been placed on the carrier,
• display a registration image for registering the commodity on the touch panel if the information for log-in is approved as a result of the approval processing,
• when an instruction for accounting for the registered commodity is received by the touch panel, select either a face-to-face register or a self register as a register for accounting for the registered commodity, and
• display, on the touch panel, a guidance image for the face-to-face register or a guidance image for the self register based on the selection result of the register.