Inkjet recording device

Abstract

Abstract PURPOSE:To reduce the data quantity in a correction value, by alternately outputting the image data corresponding to dots, which are on positive and negative sides and equal in a distance from a nozzle jet axis, with reference to the nozzle jet axis. CONSTITUTION:The ink injected from a nozzle 1 is cut into ink droplets and either one of positive and negative charges is applied to the ink droplets in the cutting timing by charge electrodes 2. However, at the time of non-printing, the ink droplets are not charged. The charged ink droplets are deflected by deflection electrodes 3, 4 and fly along a locus (a) or (b) according to the charge polarity thereof to reach a recording surface 6 while non-charged ink droplets straightly advance along a locus (c) without being deflected to be recovered by a gutter 5. Herein, the charge quantities of positively and negatively charged droplets are controlled so as to become equal in the absolute value thereof and, in this case, a correction value is applied to an image signal of course but the polarity of the correction value at that time is alternately charged over by a reversal circuit. By this method, the interaction between flying charged droplets is reduced to make it possible to reduce printing strain and the data quantity for correcting said strain can be reduced to 1/2 of a conventional data quantity.

Inventors

• 👤 Yuusuke Takeda
• 👤 有介 武田
• 👤 Takanao Koike
• 👤 孝尚 小池

Bibliographic Details