Page 139 - ZPL II Programming Guide
P. 139
ZPL Commands 119
^CV
^CV
Code Validation
Description The ^CV command acts as a switch to turn the code validation function on and
off. When this command is turned on, all bar code data is checked for these error conditions:
• character not in character set
• check-digit incorrect
• data field too long (too many characters)
• data field too short (too few characters)
• parameter string contains incorrect data or missing parameter
When invalid data is detected, an error message and code is printed in reverse image in place
of the bar code. The message reads INVALID - X where X is one of these error codes:
C = character not in character set
E = check-digit incorrect
L = data field too long
S = data field too short
P = parameter string contains incorrect data
(occurs only on select bar codes)
Once turned on, the ^CV command remains active from format to format until turned off by
another ^CV command or the printer is turned off. The command is not permanently saved.
Format ^CVa
This table identifies the parameters for this format:
Parameters Details
a = code validation Accepted Values:
N = no
Y = yes
Default Value: N
9/15/06 ZPL II Programming Guide 45541L-004 Rev. A
