A mobile terminal, comprising: a wireless communication unit configured to perform wireless communication with a 3D printer configured to print solid objects; a touch screen including a display; one or a plurality of cameras, and a controller configured to: cause the display to display an image including at least a part of a plurality of modules, the plurality of modules being formed to represent respective portions of a target object according to preset criteria, wherein the image corresponds to a photo that has captured the target obj ect; detect an error region of the target object contained in the image, wherein the error region is formed in a region connected to a plurality of modules and corresponds to a case where the image is out of focus or one region of the relevant solid object is hidden by another object, cause the display to display a select window for receiving a control command for the correction of the error region, cause the display to display an alternative image for replacing the error region, wherein the alternative image corresponds to images to be combined with the remaining region of the image in place of an image including the error region, cause the display to display a corrected image in which the remaining region of the image is combined with the alternative image; and transmit, via the wireless communication unit, a control signal to the 3D printer, wherein the control signal includes data relating to a selected module of the plurality of modules to enable the 3D printer to print the selected module as a solid object that forms a portion of the target object a wireless communication unit configured to perform wireless communication with a 3D printer configured to print solid objects; a touch screen including a display; one or a plurality of cameras, and a controller configured to: cause the display to display an image including at least a part of a plurality of modules, the plurality of modules being formed to represent respective portions of a target object according to preset criteria, wherein the image corresponds to a photo that has captured the target obj ect; detect an error region of the target object contained in the image, wherein the error region is formed in a region connected to a plurality of modules and corresponds to a case where the image is out of focus or one region of the relevant solid object is hidden by another object, cause the display to display a select window for receiving a control command for the correction of the error region, cause the display to display an alternative image for replacing the error region, wherein the alternative image corresponds to images to be combined with the remaining region of the image in place of an image including the error region, cause the display to display a corrected image in which the remaining region of the image is combined with the alternative image; and transmit, via the wireless communication unit, a control signal to the 3D printer, wherein the control signal includes data relating to a selected module of the plurality of modules to enable the 3D printer to print the selected module as a solid object that forms a portion of the target object cause the display to display an image including at least a part of a plurality of modules, the plurality of modules being formed to represent respective portions of a target object according to preset criteria, wherein the image corresponds to a photo that has captured the target obj ect; detect an error region of the target object contained in the image, wherein the error region is formed in a region connected to a plurality of modules and corresponds to a case where the image is out of focus or one region of the relevant solid object is hidden by another object, cause the display to display a select window for receiving a control command for the correction of the error region, cause the display to display an alternative image for replacing the error region, wherein the alternative image corresponds to images to be combined with the remaining region of the image in place of an image including the error region, cause the display to display a corrected image in which the remaining region of the image is combined with the alternative image; and transmit, via the wireless communication unit, a control signal to the 3D printer, wherein the control signal includes data relating to a selected module of the plurality of modules to enable the 3D printer to print the selected module as a solid object that forms a portion of the target object