Epson TM-C3400BK Technical Reference Manual page 36

Die-cut Label
When removing all the fringes
Paper width
Edge R
Label width
Edge cutoff
Paper type
Form
Backing paper width
Label width
Label length
Gap between labels
Edge cutoff on left/right side
Edge cutoff width
Label edge R
Paper thickness
Roll paper core
External diameter
Winding direction
Do not use the paper with a hole or cutout.
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When removing right and left fringes only
Edge R
Edge cutoff
width
Edge cutoff
Edge cutoff (edge)
Plain Media Label
Roll paper
30 to 112 mm {1.18 to 4.41"}
25.4 to 108 mm {1.0 to 4.25"}
When removing 25.4 to 1117.6 mm {1.0 to 44.0"}
all the fringes
When removing 15 to 1117.6 mm {0.59 to 44.0"}
right and left
fringes only
3 to 6 mm {0.12 to 0.24"}
2  0.5 mm {0.079  0.02"}
1.5 mm {0.059"} or more
2 mm {0.079"} or less
0.128 mm {0.005"}
Outside diameter: 44.1 mm {1.74"}
Maximum 101.6 mm {4.0"}
Printing face must be facing outside.
(Black Mark Die-cut Label)
Paper width
Label
Label width
Edge cutoff (edge)
Backing paper
Label area
Label chaff
Edge cutoff width