The timing of discharge of ink from the printing head is corrected to cancel out the determined amount of variation, and printing is performed based on image data in {HEAD ~ accordance} with {TAIL ~ the corrected timing} 
with
The timing of discharge of ink from the printing head is corrected to cancel out the determined amount of variation , and printing is performed based on image data in { HEAD ~ accordance } with { TAIL ~ the corrected timing }
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 OTH OTH OTH HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL