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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
will likely cause problems with the printer.
Chad may
stick to the printing area,
resulting in printing cutoff characters. Do
not use such forms.
(4)
Perforations
Perforations must be straight. The perforations should be of the size
shown in Table 2.7.
Table 2.7 Perforation dimensions
Dimension of horizontal
perforations
strong
Medium Weak
Strong
1
Medium
Tie/Cut ratio 1
abollr
1:2
about
1:l
/
2,
3, 4, and
5
about 1:3
about
1:2
Tie dimension 1, 2, 3, 4,
and
5
Cur
dimension
1,
2, 3, 4,
1.2 mm (0.472")
to 1.2
m
(0.0472")
co
and
5
2.0 ml (0.0787")
3.0
rmn
(0.1181")
I
Use weak or medium perforations shown in Table 2.7. The dimensions of
horizontal perforation should be 2 mm (0.0787") or less.
If the
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.
The raised part at the
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 of multiple-part forms.
Expended
CIOSS-
sectional view of
A-A'
Figure 2.13 Protrusion and separation of the
outlzr
layer
at the perforation of multiple-part
~forms
2
-
14 B02P-1500-OOOlA...O5