Patent ID: 7654515

Claim:
An image forming device, comprising: a device main body; a first cassette in which a print medium is housed, the first cassette housed in the device main body; a second cassette in which a print medium is housed, the second cassette housed in the device main body, wherein the second cassette linearly slides through an entire range between a first position and a second position with respect to the device main body, a third position being located between the first position and the second position, the second cassette linearly slides from the first position to the second position via the third position, and the second cassette linearly slides from the second position to the first position via the third position; a transportation device that transports the print medium housed in the first cassette when the first cassette is positioned at a predetermined position with respect to the device main body and the second cassette is positioned at the first position, wherein the transportation device transports the print medium housed in the second cassette when the second cassette is positioned at the second position, and the transportation device prohibits transporting the print medium housed in the first cassette and the print medium housed in the second cassette when the second cassette is positioned at the third position; and a printing device that prints an image on the print medium transported by the transportation device.