Epson TM-C3400BK Technical Reference Manual page 39

Black Mark Die-cut Label
Center of black marks
Center of paper width
Perforation position
2 mm or more 
( W h e n u s i n g fa n -
fold paper)
When removing all the fringes
Paper width
Edge R
Label width
Edge cutoff
<Back side>
Black mark width
When removing right and left fringes only
Edge R
Edge cutoff
width
Edge cutoff
Edge cutoff (edge)
<Printing side>
Center of paper
width
(Black Mark Die-cut Label)
Paper width
Label
Label width
Edge cutoff (edge)
Chapter 1 Product Overview
Paper feeding
direction
Backing paper
Label area
Backing paper
Label area
Label chaff
Edge cutoff width
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