| 摘要 |
A printing head designed to have a long life, particularly to be able to maintain a long duration life of a heater portion and improved qualities of printed images with improved stability and to achieve high-speed printing, a printing apparatus using the printing head and a method for driving the printing head are provided. On a substrate of the printing head are formed a printing liquid supply chamber, liquid channels communicating with the supply chamber, liquid channel wall members forming the channels, nozzles for ejecting a liquid, heaters provided as thermal energy transducing elements in the channels, and an electric wiring for energizing the heaters. Each channel has a wing-like sectional configuration in the vicinity of the corresponding heater. <IMAGE> |
