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Pin feed holes that touch horizontal perforations may damage the paper.
Pin feed holes must not overlap horizontal perforations.
Hanging hole chad
stick to the printing area, resulting
not use such forms.
Perforations
Perforations
shown in Table 2.7.
Tie/Cut ratio 1
2,
Tie dimension 1, 2, 3, 4,
and 5
Cur
dimension
Use weak or medium perforations shown in Table 2.7.
horizontal perforation should be 2 mm (0.0787") or less.
dimensions of horizontal perforations exceed 2 mm, the portion sticking
out (h in Figure 2.13) at the cutting edge becomes large! and feed error or
forms damage may occur.
If separation at the perforations (fold) between each part is too great,
the forms may be damaged or ink stain may result.
fold (H in Figure 2.13) must be 2 mm or less with the bottom layer kept
flat by force.
Figure 2.13 shows the protrusion and separation of the outer layer at the
perforation
Figure 2.13 Protrusion and separation of the outlzr
2 - 14
will likely cause problems with the printer.
must
be
straight.
Table
2.7
Dimension of horizontal
perforations
strong
about
3, 4, and 5
2.0 ml (0.0787")
2 , 3 , 4 ,
1.2 mm (0.472")
of
multiple-part
Expended CIOSS-
sectional view of
A-A'
at the perforation of multiple-part ~forms
in
printing
The perforations should be of the size
Perforation
dimensions
Medium
Weak
3.0 rmn (0.1181")
1.2 m (0.0472")
forms.
Chad may
cutoff
characters.
Strong 1 Medium
co
The dimensions of
If the
The raised part at the
layer
Do
I
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