Epson TM-C7500 Series Technical Reference Manual page 180

Media type
Media source
Backing paper width
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
Black mark position
Gaps between black marks
Paper thickness
Paper core
External diameter
Winding direction
 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
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Plain label/ Matte label/ Synthetic label/ Glossy label
Roll paper
50 mm to 112 mm {1.97 to 4.41"}
46 to 108 mm {1.81 to 4.25"}
25.4 to 600 mm {1 to 23.62"}
3 to 6 mm {0.12 to 0.24"}
2  0.5 mm {0.08  0.020"}
1.5 mm {0.06"} or less
28 mm {1.10"} or more from paper edge
5 mm {0.20"} or more
Right edge of back of paper, when feed edge is at top
28.4 to 606 mm {1.12 to 23.86"}
Plain label/ Matte label:
0.129 to 0.236 mm {0.006 to 0.009"} (reference values)
Glossy label:
0.167 to 0.182 mm {0.007 to 0.007"} (reference values)
Internal diameter: 76.2  0.5 mm {3  0.020"}
External diameter: 82.2 mm {3.24"} or more
Maximum 203.2 mm {8"}
Printing face must be facing outside.
mark edge.