A thermal drop-on-demand ink jet print head in which conductor electrodes are formed on opposed surfaces of a print head substrate and extend to the edge of the substrate. An array of heater elements is formed on the edge of the substrate in electrical contact with the conductor electrodes. A nozzle...http://www.google.com.au/patents/US5059989?utm_source=gb-gplus-sharePatent US5059989 - Thermal edge jet drop-on-demand ink jet print head
