A starting section of the printing material , {HEAD ~ which section} projects by {TAIL ~ a suitable length}, is automatically clamped between the thermal print head and the feed roller when the drawer closes 
projects by
A starting section of the printing material , { HEAD ~ which section } projects by { TAIL ~ a suitable length } , is automatically clamped between the thermal print head and the feed roller when the drawer closes
OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH