FLUID JETTING APPARATUS AND INK DROPLET JETTING METHOD

摘要

PROBLEM TO BE SOLVED: To adjust the amount of ink droplets with a high resolution without the need of a large number of driving wave forms or sacrificing the printing speed. SOLUTION: A pressure room 32 is interlocked with an orifice 14 fluidly, and a transducer 32 is bonded with the pressure room. A driver 40 supplies to the transducer driving wave forms having at least a first portion and a second portion for generating different ink droplet amounts. A control signal including an effecting component with the effecting component permitting either of the first portion or the second portion of the driving wave forms so as to operate the transducer for jetting fluid droplets from the orifice.