Patent ID: 8027054

Claim:
An image forming device comprising: a printing unit to print an image on a print medium; a scanning unit including a scanner to scan a document to generate scanned document data; an internal storage unit a universal serial bus (USB) input/output port removably connectable to a USB memory unit; and a control unit coupled to the USB input/output port to detect an attachment state of the USB memory unit with respect to the USB input/output port, wherein the control unit is coupled to the scanning unit and operable to control storing of the scanned document data generated by the scanning unit according to the detected attachment state of the USB memory unit such that when it is determined that the USB memory unit is attached to the USB input/output port, the control unit is operable to store the scanned document data generated by the scanning unit in the USB memory unit, wherein the control unit is coupled to the printing unit and operable to control printing of the scanned document data stored in the USB memory unit such that when the USB memory unit is detached and then attached again to the USB input/output port, the control unit is operable to read the scanned document data stored in the USB memory unit and directly print the scanned document data stored in the USB memory unit via the printing unit without receiving printing instructions from a host computer, wherein the control unit stores the scanned document data in the internal storage unit when the USB memory unit is not attached to the USB input/output port, and wherein the scanned document data stored in the USB memory unit is in a scanned document data format.