5525B/31/32 Line Matrix Printer Code V Programmer's Reference Manual

MSI
181
If the : parameter is specified, the ratios are
represented in printer dots instead of IGP dots
(60 x 72 dpi).
type Represents the bar code type. As shown in Table
34, MSI Types F, G, H, I, and X are available. Enter
the type code corresponding to the MSI bar code
type desired.
ratio Optional parameter (used in conjunction with 9
above) representing the ratios for variable ratio bar
codes. Default ratios are overridden by the variable
ratio feature. The ratio data must be hexadecimal
numbers from 0 through 9 or A through F. The
Code V automatically checks the input for validity. If
an invalid character is found in the ratio, an error
message is generated.
MSI bar codes use four-digit ratios. The ratios are
interpreted from left to right, measuring the size of
each bar or space, in dot width, in the following
pattern:
narrow bar : narrow space : wide bar : wide
space.
For example, enter 2244 in the ratio
parameter for:
2 dot-wide narrow bar
2 dot-wide narrow space
4 dot-wide wide bar
4 dot-wide wide space
The Code V automatically checks ratio data for validity only within the
allowable hexadecimal range. The Code V does not verify that ratio data
creates acceptable wide/narrow element relationships for bar code
readability. For example, the Code V accepts wide/narrow ratio values of 2
and 5, respectively; however, a narrow element larger than the wide element
produces an unreadable bar code. When designing unique ratio data,
carefully plot wide and narrow ratios to conform to readable bar codes.
Table 34. MSI Bar Codes
Standard
Type Code
IBARC, Type
Code
# of Data
Characters
Check Digits
Default Bar/
Space
Ratios*
F MSI 1-13 None 1:1:2:2
G MSI10 1-13 Mod 10 1:1:2:2
H MSI1010 1-13 Mod 10, Mod 10 1:1:2:2
I MSI1110 1-13 Mod 11, Mod 10 1:1:2:2
X MSI11 1-13 Mod 11 1:1:2:2
*Ratios represent dot width of the bar/space elements as follows:
Narrow Bar : Narrow Space : Wide Bar : Wide Space .