Patent ID: 6019456
Filing Date: 2000-02-01
Classification: B41J

Abstract:
A liquid jet recorder comprising:nozzles for jetting a liquid, heating resistors being provided in a one-to-one correspondence with said nozzles for receiving electric energy,generating heat energy to jet a liquid, and jetting a liquid from said nozzles,a protective film for protecting said heating resistors, andcontrol means for controlling the electric energy given to said heating resistors,wherein said control means executes multi-pulse drive consisting of prepulses not jetting a liquid to said heating resistors and main pulses jetting a liquid to said heating resistors, sets each main pulse to a width narrower than a main pulse width at normal recording time and wider than a main pulse width starting film boiling in a region on said protective film including heating regions of said heating resistors, and causes said nozzles to jet a liquid for removing deposit adhering onto said protective film.