Справочник для Printronix l7032
216
Chapter
3
Bar Codes
ratio
Optional parameter (used in conjunction with 9 or :
above) representing the ratios for variable ratio bar
codes. Default ratios are overridden by the variable
ratio feature. However, unique variable ratios for
EAN 8 bar codes easily generate large, out-of-spec
bar codes. Ratio data must be hexadecimal
numbers from 0 through 9 or A through F; VGL
automatically checks the input for validity. If an
invalid character is found in the ratio, an error
message is generated.
above) representing the ratios for variable ratio bar
codes. Default ratios are overridden by the variable
ratio feature. However, unique variable ratios for
EAN 8 bar codes easily generate large, out-of-spec
bar codes. Ratio data must be hexadecimal
numbers from 0 through 9 or A through F; VGL
automatically checks the input for validity. If an
invalid character is found in the ratio, an error
message is generated.
EAN 8 bar codes use eight-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:
are interpreted from left to right, measuring the size
of each bar or space, in dot width, in the following
pattern:
1 module wide bar : 1 module wide space :
2 module wide bar : 2 module wide space : 3
module wide bar : 3 module wide space : 4 module
wide bar : 4 module wide space.
module wide bar : 3 module wide space : 4 module
wide bar : 4 module wide space.
NOTE: VGL automatically checks ratio data for validity only within the
allowable hexadecimal range. VGL does not verify that ratio data
creates acceptable bar/space element relationships for bar code
readability. When designing unique ratio data, carefully plot bar/
space ratios to conform to readable bar codes.
creates acceptable bar/space element relationships for bar code
readability. When designing unique ratio data, carefully plot bar/
space ratios to conform to readable bar codes.
data
The bar code data. Standard EAN 8 bar codes
encode exactly 7 digits. The first four data
characters are in the left half of the data field, and
the last 3 characters are in the right half of the data
field. (A check digit is automatically computed and
printed at the end of the right data field). If the 2- or
5-digit add-on data field is used, include this data at
the end of the data field.
encode exactly 7 digits. The first four data
characters are in the left half of the data field, and
the last 3 characters are in the right half of the data
field. (A check digit is automatically computed and
printed at the end of the right data field). If the 2- or
5-digit add-on data field is used, include this data at
the end of the data field.
The characters available for the data field are 0
through 9 (hex 30 through 39, respectively).
through 9 (hex 30 through 39, respectively).
(cc)G
Terminates the bar code command. Enter the
SFCC for your VGL configuration followed by any
valid command character or G, the universal
sequence terminator.
SFCC for your VGL configuration followed by any
valid command character or G, the universal
sequence terminator.