(8) NW-7
NW-7 bar code can represent numeric characters 0 to 9 and special characters
such as - , $ , : , / , . , + with one of character from A to D as Start or Stop code
in NW-7.
1) Width of character in each mode
Width of each bar code character varies since number of narrow bars and wide
bars are different in each character.
Normal character
(number of narrow element : 5 , number of wide element : 2)
0 to 9 , $ , -
Wide character
(number of narrow element : 4 , number of wide element : 3)
: , / , . , + , A to D
Length of each bar code character includes a space between characters.
a) Horizontal direction print
Item
Mode 1 Mode 2 Mode 3 Mode 4 Mode 5 Mode 6 Mode 7 Mode 8 Mode 9
Width of narrow
elements
Width of wide
element
Ratio
Space between
characters
Length of
(Normal)(mm)
each character
(Wide)(mm)
b) Vertical direction print
Item
Mode 1 Mode 2 Mode 3 Mode 4 Mode 5 Mode 6 Mode 7 Mode 8 Mode 9
Length of
(Normal)(mm)
each character
(Wide)(mm)
2 dots 3 dots 4 dots 2 dots 3 dots 4 dots 2 dots 3 dots 4 dots
6 dots 9 dots 12 dots 5 dots 8 dots 10 dots 4 dots 6 dots 8 dots
1 : 3
1 : 3
1 : 3
2 dots 3 dots 4 dots 2 dots 3 dots 4 dots 2 dots 3 dots 4 dots
3
4.5
6
3.5
5.25
7
3.5
5
6.5
4
5.75
7.5
1 : 2.5 1 : 2.7 1 : 2.5
2.75
4.25
5.5
3.125
5.125
6.25
3.25
4.75
6
3.625
5.625
6.75
– 84 –
1 : 2
1 : 2
1 : 2
2.5
3.75
5
2.75
4.125
5.5
3
4.25
5.5
3.25
4.625
6