A printing data producing device that produces printing data for use in a printing device including a printing head having a plurality of printing elements arranged in {HEAD ~ a line} to form {TAIL ~ an image} on a medium, the device comprising: 
to form
A printing data producing device that produces printing data for use in a printing device including a printing head having a plurality of printing elements arranged in { HEAD ~ a line } to form { TAIL ~ an image } on a medium , the device comprising :
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH