Patent ID: 7648215

Claim:
An ink-jet printing apparatus, comprising: a plurality of ink-jet heads having a plurality of nozzles to eject ink; an ink-jet head mount in which the plurality of ink-jet heads are installed such that one of the plurality of ink-jet heads is fixed to the ink-jet head mount as a reference ink-jet head, and relative positions of remaining ink-jet heads are adjustable with respect to the reference ink-jet head; and a frame in which the ink-jet head mount is installed, wherein the ink-jet head mount comprises: a first ink-jet head installer, a second ink-jet head installer, and a third ink-jet head installer in which the first, second, and third ink-jet heads are respectively installed; a first position adjustor to move the first ink-jet head installer in a lengthwise direction thereof; a second position adjustor and a third position adjustor to move both ends of the first ink-jet head installer in a widthwise direction of the first ink-jet head installer; a fourth position adjustor to move the third ink-jet head installer in a lengthwise direction thereof; and a fifth position adjustor and a sixth position adjustor to move both ends of the third ink-jet head installer in a widthwise direction of the third ink-jet head installer.