Determining Printer Status - Brady TLS PC Link Programmer's Manual

Determining Printer Status

There are two methods to determine the printer status:
!
Feedback Characters
!
Immediate Command to Request Status
If feedback characters are used, a response is given after each System Level or
Label Formatting Command is completed. If an error occurs on a command, it is
known immediately by the response. When a print command is sent, a print
complete character is sent by the printer when the print is done. If an error
occurred during the print such as being out of labels, the feedback character
contains this error.
If feedback characters are not used, the status can be determined by requesting it
with an Immediate Command. After a print command is sent, the printer can be
queried with a Send ASCII Status String Command. This command will tell if
the printer is busy printing or if an error has occurred. If using this method, it is
important to have immediate commands enabled. They must be enabled before a
print command is sent, or they will not be enabled until after the print job is
complete.
TLS PC Link
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Programmer's Guide
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