An ink jet recording head comprises a plurality of ink discharge ports for discharging ink, a plurality of ink paths each communicating with one of the discharge ports and a thermal energy generating device provided in each ink path for generating thermal energy to be applied to the ink. The discharge...http://www.google.com.au/patents/US5175567?utm_source=gb-gplus-sharePatent US5175567 - Recording apparatus and recording head having an improved discharge post arrangement
