Patent ID: 8447655

Claim:
An electronic cash register which transmits a data file to a server by using a file transfer protocol and receives a data file from the server by using the file transfer protocol, the electronic cash register comprising: a storage unit configured to store sales data; a receiver configured to receive the data file and a command for getting the sales data from the server by using the file transfer protocol; a memory configured to store mode information which is transmitted from the server and indicates an inspection mode or a sales adjustment mode; a reading module configured to read the sales data from the storage unit in accordance with whether the mode information stored in the memory indicates an inspection mode or a sales adjustment mode, the sales data being read in a file format based on a name of the data file transmitted from the server by using the file transfer protocol, when the receiver receives the command for getting the sales data; and a transmitter configured to transmit the sales data read by the reading module to the server; wherein the reading module is configured to delete the sales data from the storage unit in order to carry out sales adjustment after reading the sales data when the mode information stored in the memory indicates the sales adjustment mode; and wherein the electronic cash register further comprises a determining module configured to determine whether an operator is a responsible person authorized for sales adjustment, and wherein the reading module is configured to delete the sales data when the determining module determines that the operator is the responsible person.