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Job Request
A Job Request returns status information about the most recently
processed print job. You can send a job request after an ENQ or
batch. You can send two levels of Job Requests:
◆
Numeric Error Codes Only (0, 1, or 2)
◆
Verbose (3 or 4)
Syntax
{J,#}
Field Type Valid Options Description
Identifier J
Job Status Request
request#
0
1
2
3
4
Returns ASCII coded strings or
numeric error codes
Returns error number
Returns number of labels printed in batch
Example {J,3}
The job response may not be immediate. If the printer has an
error (out of supplies, ribbon problem, etc.), is in pause mode, or
has insufficient memory, correct the problem and then resend the
job request. If the problem is not corrected, no response is
returned. If a formatting error has occurred, the job request will
return the status. The printer must first interpret the format and
batch data before returning the response.
To clear an error, press the FEED button. An ENQ can also clear
errors numbered less than 500. Once the error is corrected, a job
request can be sent. The printer cannot accept another job
request until the error is resolved.
7-8 Status Polling