For stabilizing the liquid discharge from the head such as in the ink jet recording the invention provides a liquid discharging head comprising a discharge liquid path communicating with a discharge opening for discharging a discharge liquid and adapted to flow the discharge liquid, a bubble generating...http://www.google.ca/patents/US6217157?utm_source=gb-gplus-sharePatent US6217157 - Liquid discharging head and liquid discharging apparatus
