An Offset Press Operator is responsible for producing a high volume of quality offset printing accurately to specifications on deadline; operates and maintains high volume presses; operates a camera to produce megalith printing plates; produces and strips negatives to make metal printing plates; does related work as ... offset printing, in commercial printing, widely used printing technique in which the inked image on a printing plate is printed on a rubber cylinder and then transferred (i.e., offset) to paper or other material.