Patent ID: 6120120
Filing Date: 2000-09-19
Classification: B41J

Abstract:
An ink jet apparatus for a printer, comprising:an ink jet head having a nozzle and an ink channel formed therein, the nozzle and the channel communicating with each other, the head also having an actuator for changing the volume of the channel to eject ink from the channel through the nozzle;a drive unit for driving the actuator;a control unit for generating a print data for every print cycle and controlling the drive unit with the data; anda stop pulse data generator for carrying out a logical operation of the print data for each print cycle Tm and the print data for the next print cycle Tm+1 to generate a stop pulse data if the data for the cycle Tm is a data for execution of printing and if the data for the cycle Tm+1 is a data for no execution of printing;the drive unit driving the actuator based on the stop pulse data so as to damp pressure wave vibration generated in the channel after the execution of printing in accordance with the print data for the print cycle Tm.