Substrate for ink-jet head, having an optical element ink-jet head, and ink-jet apparatus

摘要

There is disclosed an ink-jet head for performing recording by discharging an ink, including a discharge port for discharging the ink, and an ink channel which communicates with the discharge port and is provided with a discharge energy generating element for discharging the ink. An optical element is arranged at a position, corresponding to the ink channel, of the ink-jet head. There are also disclosed an ink-jet apparatus using the ink-jet head and a substrate for the ink-jet head.