Patent ID: 7144007

Claim:
An apparatus recognizing a size of media, said apparatus comprising: a media aligning guide being mounted on a cassette and being movable to a plurality of different positions to align media loaded in the cassette, the cassette being detachably mounted in a main body; a signal generating unit being interlocked with said media aligning guide, said signal generating unit generating a signal code in response to a current position of said media aligning guide, said signal generating unit including a panel movable with respect to a wall of the cassette, the panel having a plurality of signal apertures of the panel arranged in a predetermined pattern; a switching unit being mounted on the main body, said switching unit switching in response to the generated signal code when the cassette is mounted in the main body; and a control unit outputting a size signal in response to said switching of said switching unit, said size signal corresponding to a size of the media loaded into the cassette.