Hitachi Industrial Equipment Systems Co., Ltd.

An Kyu

Takashi Kawano

Manabu Kato

Tsuneaki Takagishi

To realize high-quality printing with less printing distortion by reducing an influence of a Coulomb force that acts between ink particles which are ejected in an inkjet recording device. The inkjet recording device is configured to charge ink particles ejected from a nozzle, deflect the charged ink particles, and print a character in a shape of an object to be printed. In the inkjet recording device, dots of each column of the character to be printed are divided into a plurality of blocks in a column direction. In addition, charging voltage data in which the order of the ink particles corresponding to the dots is switched in the divided block unit is stored, and a predetermined charging voltage is applied to the charging electrode on the basis of the charging voltage data.

Inkjet recording device and control method for inkjet recording device

An object of the present invention is to provide an inkjet recording device capable of adjusting a clearance between prints formed by two nozzles (), and capable of printing a print content at a high speed. In order to achieve the object, there is provided an inkjet recording device which has two sub-print heads including nozzles (), charging electrodes (), deflection electrodes (), and gutters (), in which the two nozzles are disposed in a deflection direction of ink particles, and which performs printing on a printed object () while moving the printed object () relative to the ink particles in a direction substantially perpendicular to the deflection direction of the ink particles, the inkjet recording device having a function for reducing a clearance between print results (), printed by the two nozzles (), by controlling a voltage applied to the charging electrodes () and a voltage applied to the deflection electrode ().

Inkjet recording device

When printing on the same printing object with multiple print nozzles in the past, consideration was not given to cases in which the time relationships of the set times and times-to-be-printed become mismatched between the respective print items of the print nozzles. To solve this problem, an inkjet printer that prints on a conveyed printing object and has multiple print nozzles, multiple auxiliary control units for controlling the printing performed by the multiple print nozzles, and a common main control unit connected to the multiple auxiliary control units via communication unit is provided. The main control unit extracts the time relationship of the set times and the time relationship of the times-to-be-printed between the items to be printed by the respective print nozzles of the multiple print nozzles and revises the print data so as to preserve the time relationship of the set times.

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Tokyo, Japan

An Kyu