A recording head or the like having a voltage generating circuit which does not depend on a voltage fluctuation of a heater driving power source (first power source) is provided. The recording head has: a plurality of heaters connected to a power line VH as a heater driving power source; a power transistor...http://www.google.de/patents/US7300124?utm_source=gb-gplus-sharePatent US7300124 - Recording head and recording apparatus using the same
