The parallelism adjusting means configured for rotationally moving at least one of {HEAD ~ the first print head} and the third print head relative to the second print head so as to adjust parallelism between the first nozzle line, {TAIL ~ the second nozzle line}, and the third nozzle line 
The parallelism adjusting means configured for rotationally moving at least one of { HEAD ~ the first print head } and the third print head relative to the second print head so as to adjust parallelism between the first nozzle line , { TAIL ~ the second nozzle line } , and the third nozzle line
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD 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 TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH