Patent ID: 9469100
Filing Date: 2016-10-18
CPC Classification: B41J,H04N

Claim Text:
1. A printing control device comprising: a nozzle information obtainment unit that obtains the position of a discharge-failing nozzle which fails to discharge ink in a printing head which includes a plurality of nozzles discharging ink on a printing medium; a data generation unit that generates printing data in which a dot position which is the position of a dot constituting an image printed on the printing medium is associated with an amount of ink to be discharged to the dot position; and a data correction unit that specifies a second position which is adjacent to a first position where ink is to be discharged by the discharge-failing nozzle in the printing data on the basis of the position of the discharge-failing nozzle obtained and corrects the printing data so that the amount of ink discharged at the second position in the corrected printing data is increased; and a storage unit in which a relationship between the size of a plurality of dots and amount of ink to be discharged in association with each size of the plurality of dots are stored, wherein the data correction unit associates multiple times of discharging ink with the second position when the amount of ink discharged to the second position is greater than the amount of ink corresponding to a largest size of a dot among the size of the plurality of dots stored in the storage unit; wherein a first amount, a second amount that is greater than the first amount, and a third amount that is greater than the second amount are stored in the storage unit as the amount of ink discharged, and the data correction unit corrects the printing data so that the first amount is associated with the second position when the amount of ink associated with the second position in the printing data generated is none, the second amount is associated with the second position when the amount of ink associated with the second position in the printing data generated is the first amount, the third amount is associated with the second position when the amount of ink associated with the second position in the printing data generated is the second amount, and a fourth amount consist of two times of discharge of ink that is greater than the third amount are associated with the second position when the amount of ink associated with the second position in the printing data generated is the third amount.