METHOD FOR DRIVING PIEZOELECTRIC ELEMENT IN CONTINUOUS INK-JET PRINTER, AND CONTINUOUS INK-JET PRINTER

摘要

PROBLEM TO BE SOLVED: To provide a technique for controlling a break point of various piezoelectric elements to a required position with a low drive voltage in a continuous ink-jet printer. ;SOLUTION: A frequency variable device 4 outputs a control signal Fa for controlling a frequency of a voltage to be generated at a drive voltage generation device 2 to the drive voltage generation device 2 on the basis of the control of a CPU 1, and a control signal Fb for controlling a frequency of a charging voltage at a charging voltage generation circuit 3 to the charging voltage generation circuit 3 on the basis of the control of the CPU 1.;COPYRIGHT: (C)1999,JPO