Patent ID: 7465003

Claim:
A liquid discharge apparatus comprising discharge control means including: a liquid chamber for storing liquid; first and second pressure generating elements provided at the liquid chamber, and serving to eject liquid stored within the liquid chamber; discharge holes for discharging the liquid; and a discharge control means for controlling energy delivered to each one of the respective pressure generating elements in each of a first mode and a second mode, the first mode delivering energy to each one of the respective pressure generating elements at a substantially same timing in order to eject ink at a substantially perpendicular direction from an output surface of the discharge hole, and the second mode delivering substantially a same energy to each one of the respective pressure generating elements at different timings such that a second energy pulse delivered to the second pressure generating element is shifted a minimum of 7.5% and a maximum of 20% from a reference first energy pulse delivered to the first pressure generating element such that ink is discharged from the discharge hole at an angle offset from the perpendicular.