Ink jet printheads; printers and parts thereof for domestic, business and commercial applications; printers and parts thereof for advertising, billboards, signs, signage, banners, posters, displays and graphics; ink jet devices, namely, printheads and micropumps, to be used for printing on packaging and printing during the manufacturing process of electronic equipment, computers, computer monitors, computer displays, televisions, handheld devices; ink jet devices, namely, printheads and micropumps, for printing involving conductive substances and electroluminescent substances; [ control devices, namely, printer, micropumps and printhead accessories, namely, controllers for operating, controlling, supporting, regulating, supplying, testing, evaluating and networking printing systems, printing processes, image data and image display; hardware and software for operating, controlling, supporting, regulating, supplying, testing, evaluating and networking printing systems, printing processes, image data and image display ]