Therefore, produced printing data allows the density to be controlled to change continuously and gradually, and quality degradation caused by {HEAD ~ density variations} attributable to {TAIL ~ the printing head} can be less perceptible 
attributable to
Therefore , produced printing data allows the density to be controlled to change continuously and gradually , and quality degradation caused by { HEAD ~ density variations } attributable to { TAIL ~ the printing head } can be less perceptible
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 TAIL OTH OTH OTH OTH