Epson TM-C3500 Series Technical Reference Manual page 38

Label width
Label length
Gap between labels
Left and right outer edges
Label edge R
Width of a black mark
Length of a black mark
Center of a black mark
Gaps between black marks
Paper thickness
Paper core
External diameter
Winding direction
Form of perforated line
 Do not use the paper with a hole or cutout.
 For the black mark position of the die-cut label paper, match the label edge to the black
38
25.4 to 108 mm {1 to 4.25"}
15 to 1,117.6 mm {0.59 to 44"}
3 to 6 mm {0.12 to 0.24"}
2 mm  0.5 mm {0.079  0.02"}
1.5 mm {0.059"} or less
13 mm {0.51"} or more
5 mm {0.19"} or more
8.5 mm  1 mm {0.33  0.039"}
18 to 1,123.6 mm {0.71 to 44.24"}
Plain label / Matte label:
0.129 to 0.143 mm {0.005 to 0.006"}
Glossy label:
0.184 mm {0.007"}
Plain label:
outer diameter 44.1 mm {1.74"} or more
Matte label / Glossy label:
outer diameter 56.8 mm {2.24"} or more
Maximum 101.6 mm {4"}
Printing face must be facing outside.
Plain media : 1 mm {0.039"} uncut, 5 mm {0.2"} cut
Fine media : 1 mm {0.039"} uncut, 5 mm {0.2"} cut
PET film
mark edge.
: 0.6 mm uncut, 8.4 mm cut