Printronix l7032 Verweishandbuch
242
Chapter
3
Bar Codes
Start/Stop Codes
The start/stop code is a unique character identifying the leading and trailing
end of the bar code. The start/stop code is automatically produced with each
bar code, and permits bidirectional bar code scanning.
end of the bar code. The start/stop code is automatically produced with each
bar code, and permits bidirectional bar code scanning.
Data Field
The MSI bar code symbol uses a series of wide and narrow bars and spaces
to represent numeric characters. The structure is 1-module-wide narrow
elements and 2-module-wide wide elements; elements can be a bar or a
space. Each character is composed of 4 data bits, with each bit made up of a
bar and a space totalling 3 modules.
to represent numeric characters. The structure is 1-module-wide narrow
elements and 2-module-wide wide elements; elements can be a bar or a
space. Each character is composed of 4 data bits, with each bit made up of a
bar and a space totalling 3 modules.
Readable Data
The optional readable data field provides a readable interpretation of the bar
code data. Bar code data is printed below the horizontal bar code symbol, and
to the left of a vertical bar code symbol. The lower guard band is provided
when the readable data field is selected.
code data. Bar code data is printed below the horizontal bar code symbol, and
to the left of a vertical bar code symbol. The lower guard band is provided
when the readable data field is selected.
Check Digit
The check digit provides the means of verifying accurate scanning. For MSI
Types G, H, I, and X, a specific check digit, Modulo-10 or Modulo-11 (or both),
is automatically calculated and appended in the bar code symbol. MSI Type F
does not use a check digit.
Types G, H, I, and X, a specific check digit, Modulo-10 or Modulo-11 (or both),
is automatically calculated and appended in the bar code symbol. MSI Type F
does not use a check digit.
MSI Command Format
NOTE: See page 164 for the IBARC, command format and definitions.
Default Ratio:
(cc)
dir p type data (cc)G
Variable Ratio:
(cc)
dir p [9] [:] type [ratio] data (cc)G
(cc)
Represents the Special Function Control Code
(SFCC). Enter the specific SFCC for your VGL
configuration.
(SFCC). Enter the specific SFCC for your VGL
configuration.
dir
Represents the direction of the bar code. Enter B
for horizontal bar codes; enter C for vertical bar
codes.
for horizontal bar codes; enter C for vertical bar
codes.
p
Prints the optional readable data field. The
readable data field is printed below a horizontal bar
code or on the left-hand side of a vertical bar code.
readable data field is printed below a horizontal bar
code or on the left-hand side of a vertical bar code.
Replace
p in the bar code command with one of the
codes listed below to print the readable data field in
the corresponding font with the specified guard
band gap.
the corresponding font with the specified guard
band gap.