{TAIL ~ Resolution} is switchable between {HEAD ~ 600 dpi} and 300 dpi in the first embodiment, and between 600 dpi and 400 dpi in the second embodiment 
{ TAIL ~ Resolution } is switchable between { HEAD ~ 600 dpi } and 300 dpi in the first embodiment , and between 600 dpi and 400 dpi in the second embodiment
TAIL TAIL TAIL TAIL TAIL OTH OTH OTH 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