Recording apparatus, method of controlling recording apparatus and computer readable recording medium

A method of controlling a recording apparatus which includes:

• a liquid ejection head including a plurality of ejection ports for ejecting droplets toward a recording medium, and an image data storage which stores image data showing positions of a plurality of image dots which make up an image to be produced on the recording medium by the droplets ejected from the liquid ejection head, the method comprising:
• controlling the liquid ejection head according to the image data stored in the image data storage so that plurality of image dots are formed on the recording medium by droplets ejected from the ejection ports;
• and
• controlling the liquid ejection head so that flushing dots are produced on the recording medium by droplets auxiliary ejected from the ejection ports not contributing to production of the image dots before recording on the recording medium is completed, so that the flushing dots are formed so as not to be adjacent to each other, and so that one or less of the flushing dot is formed in respective lines belonging to at least one of a set of two lines extending in a first direction and a second direction orthogonal to the first direction and a set of two lines extending in third and fourth directions that are orthogonal to each other and respectively cross with the first and second directions at the same angle.

A computer readable recording medium storing a program which causes a recording apparatus, which includes:

• a liquid ejection head including a plurality of ejection ports for ejecting droplets toward a recording medium, and an image data storage which stores image data showing positions of a plurality of image dots which make up an image to be produced on the recording medium by the droplets ejected from the liquid ejection head, to perform:
• controlling the liquid ejection head according to the image data stored in the image data storage so that plurality of image dots are formed on the recording medium by droplets ejected from the ejection ports;
• and
• controlling the liquid ejection head so that flushing dots are produced on the recording medium by droplets auxiliary ejected from the ejection ports not contributing to production of the image dots before recording on the recording medium is completed, so that the flushing dots are formed so as not to be adjacent to each other, and so that one or less of the flushing dot is formed in respective lines belonging to at least one of a set of two lines extending in a first direction and a second direction orthogonal to the first direction and a set of two lines extending in third and fourth directions that are orthogonal to each other and respectively cross with the first and second directions at the same angle.