The reel changer 26 is provided with a reel holding lever 31 turnably holding the reels 30a and 30b, and {HEAD ~ a detector} 32 for measuring the amount of {TAIL ~ the web 7 wound} around the reel 30a or 30b 
The reel changer 26 is provided with a reel holding lever 31 turnably holding the reels 30a and 30b , and { HEAD ~ a detector } 32 for measuring the amount of { TAIL ~ the web 7 wound } around the reel 30a or 30b
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH