Resolving Communication Issues
Resolving Communication Issues

Resolving Communication Issues

This section identifies problems with communications, the possible causes, and the recommended solutions.
Possible Cause
Recommended Solution
Label Job Sent, Data Transfers, But Labels Don't Print
A label format was sent to the printer but was not recognized.
Data was transferred to the printer but the printer does not print.
The prefix and delimiter characters set in the printer do not match the characters in the label format.
Verify the ZPL programming prefix (
) and delimiter (
) characters. (See ZPL Printer Configuration Format.)
Incorrect data is being sent to the printer.
Check the label format. (See the ZPL Programming Guide for details on printer programming.)