In {HEAD ~ the present embodiment}, {TAIL ~ a bubble jet type print head unit} 10 is used, but the piezo jet type print head unit may also be used 
In { HEAD ~ the present embodiment } , { TAIL ~ a bubble jet type print head unit } 10 is used , but the piezo jet type print head unit may also be used
OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH