Patent ID: 8807714

Claim:
An ink jet recording apparatus having a print head incorporating a nozzle vibrating ink at a constant cycle, jetting out the ink, and atomizing the ink, an electrification electrode electrifying ink particles, and deflection electrodes deflecting the ink particles being electrified in a main scanning direction, the ink jet recording apparatus carrying out printing by causing the ink particle to fly to a printing workpiece relatively moving with respect to the print head in a sub scanning direction substantially orthogonal to the main scanning direction, the ink jet recording apparatus comprising: a print sensor detecting that the printing workpiece is moved to a predetermined position in an upstream side of the relative movement direction with respect to the print head; flying time calculating means for calculating flying time of the ink particle in a printing distance between the print head and the printing workpiece at the point when the printing workpiece is relatively moved to a position opposed to the print head; and electrification timing control means for controlling timing of an electrification signal supplied to the electrification electrode in accordance with the flying time and setting a printing position with respect to the printing workpiece, wherein the electrification timing setting means sets the printing position by subtracting the ink flying time from print write-starting time, which is from detection of the printing workpiece by the print sensor until printing.