Patent ID: 7637581
Filing Date: 2009-12-29
Classification: B41J,C09D

Abstract:
1. An ink jet recording method comprising applying a drive signal to a heat generating resistor provided in an ink jet head substrate, the heat generating resistor being coated with a protecting film, thereby generating thermal energy which is applied to the ink through the protecting film to create a bubble by film boiling of the ink, thereby generating pressure causing ink ejection, said method comprising the steps of: selecting a value relating to a pulse width of a driving signal to be applied to said heat generating resistor, from values which are stored in an information storing portion provided in said recording head on the basis of data obtained by a temperature sensor provided on said substrate, such that the maximum reaching temperature of a contact surface of the protecting film relative to the ink does not exceed 560° C.; and ejecting the ink by driving said heat generating resistor on the basis of the value selected in said selecting step.