{HEAD ~ 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 accordance with {TAIL ~ the corrected timing} 
{ HEAD ~ 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 accordance with { TAIL ~ the corrected timing }
HEAD HEAD HEAD HEAD HEAD HEAD 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 TAIL TAIL TAIL TAIL TAIL TAIL TAIL