Image forming apparatus, image correction method, and non-transitory computer readable recording medium storing image correction program

An image correction method executed by an image forming apparatus including a recording head configured to form an image by discharging single color ink from plural nozzle sequences, the method comprising:

• a profile generating step, by the image forming apparatus, of generating a profiles based on individual images and combined images, the individual images each being images formed from one of the plural nozzle sequences and the combined images being images formed by all of the nozzle sequences, the profiles indicating discharge characteristics of each of the nozzle sequences and a positional relationship therebetween, the discharge characteristics including information on desired lines and undesired artifacts generated by the nozzle sequences;
• a table generating step of generating, by the image forming apparatus, a drive condition table by scoring, for each combination of the drive conditions, the discharge characteristics associated with corresponding nozzle sequences;
• and
• a driving condition determination step, by the image forming apparatus, of determining the drive conditions of the corresponding nozzle sequences by selecting one of the drive conditions from the drive condition table based on selection criteria.

A non-transitory computer readable recording medium storing an image correction program for causing an image forming apparatus, the image forming apparatus including a recording head configured to form an image by discharging single color ink from plural nozzle sequences, to execute:

• a profile generating step of generating a profile including discharging characteristics of corresponding nozzle sequences and information indicating a positional relationship among the plural nozzle sequences, based on individual images and combined images, the individual images each being images formed from one of the plural nozzle sequences and the combined images being images formed by all of the nozzle sequences, the profiles indicating discharge characteristics of each of the nozzle sequences and a positional relationship therebetween, the discharge characteristics including information on desired lines and undesired artifacts generated by the nozzle sequences;
• a table generating step of generating a drive condition table by scoring, for each combination of the drive conditions, the discharge characteristics associated with the corresponding nozzle sequences;
• and
• a driving condition determination step of determining the drive conditions of the corresponding nozzle sequences from the drive condition table based on selection criteria.