Patent ID: 8679574

Claim:
A freely movable printing system comprising: an input unit configured to input data regarding content that is to be printed; a storage unit configured to store the data; a printing unit configured to print the content corresponding to the data on a work side; a driving unit configured to freely move at least a part of the freely movable printing system comprising the printing unit in a work site comprising the work side; at least one recognition unit located at the work site; a sensing unit configured to sense the at least one recognition unit; a location signal generation unit that is electrically connected to the sensing unit and configured to generate a location signal based on information regarding the at least one recognition unit sensed by the sensing unit; and a control unit that is connected to the input unit, the storage unit, the printing unit, the driving unit, and the location signal generation unit, configured to compare the location signal received from the location signal generation unit with the data, calculate a current location of the at least a part of the freely movable printing system comprising the printing unit, operate the driving unit and the printing unit, and print the content corresponding to the data on the work side.