Printing device and printing method

摘要

A printing device for printing on a supplied paper, said printing device being provided therein with ink ejecting elements for ejecting ink from ink flow paths having nozzles on its front end and formed in ink jet head, and with a controlling means for electrically controlling said ink ejecting elements, said printing device being characterized in that said controlling means is constructed such that electric controlling conditions with respect to said ink ejecting elements are varied according to types of ink used. By such a construction, it becomes possible to drive ejecting elements in an excellent driving conditions adapted to type of ink used, thereby to deliver ink onto paper in a stable manner for carrying out a good quality of printing.