Liquid discharging device, liquid discharging method, and computer program product

A liquid discharging method to be executed by a liquid discharging device that discharges a liquid onto a recording medium for image formation and comprises a plurality of head modules each including an array of nozzles that discharge a liquid of at least one color, the head modules being connected in a direction of the nozzle array from one of the head modules, the one supported by a guide extending in a main-scanning direction, the method comprising:

• acquiring image data based on which the image is formed;
• and
• allocating, to dots of the image data, a row of droplets of the liquid discharged from one of the head modules closest to the guide in a sub-scanning direction, such that the liquid droplets discharged from the head module closest to the guide are equal to or higher in ratio than the liquid droplets discharged from each of the head modules other than the head module closest to the guide.

A computer program product comprising a non-transitory computer readable medium including programmed instructions, wherein the instructions, when are executed by a computer, mounted on a liquid discharging device that discharges a liquid onto a recording medium for image formation and comprises a plurality of head modules each including an array of nozzles that discharge a liquid of at least one color, the head modules being connected in a direction of the nozzle array from one of the head modules, cause the computer to execute:

• acquiring image data based on which the image is formed;
• and
• allocating, to dots of the image data, a row of droplets of the liquid discharged from one of the head modules closest to the guide in a sub-scanning direction, such that the liquid droplets discharged from the head module closest to the guide are equal to or higher in ratio than the liquid droplets discharged from each of the head modules other than the head module closest to the guide.