A printing apparatus includes a master board and a feeding part. The master board includes first and second planes different from each other, a patterned reservoir formed on the first plane, and an injection hole connected to the patterned reservoir by extending from the second plane through an inside of the master board. The feeding part feeds the ink into the patterned reservoir through the injection hole. The ink is supplied to the patterned reservoir through the injection hole. The feeding part feeds a predetermined amount of ink into the patterned reservoir through the injection hole so that the ink is prevented from overflowing out of the patterned reservoir. Thus, an additional process to remove ink overflowing out of the patterned reservoir is not necessary.