Simple electrostatic ink jet printing head having low cost

摘要

An electrostatic ink jet printing head comprises printing electrodes formed on the base film of a substrate. The printing electrodes has insulating coating films which coats the printing electrodes, respectively. Each of the printing electrodes has a main electrode portion formed on the base film and a protruding electrode portion which protrudes from the base film. A covering member coves the main electrode portion. The covering member has an internal surface defining, in cooperation with the main electrode portions and the base film, a ink receiving space which receives ink containing toner particulates.