Status; Job Markers - Printronix SL4M Reference Manual

Status

Status
When certain events occur, the printer can send status messages to the client
as responses to the client's request or as unsolicited notification. For
example, if a fault occurs, messages are sent to inform the client about the
fault condition. By default, the printer does not send unsolicited messages.
The management client can however, select the unsolicited messages to be
sent by the printer. This helps reduce the amount of traffic on the
management interface.

Job Markers

Printing can cause automatic replies due to the data that is being printed,
such as RFID tag data. Markers can be placed in the print stream to indicate
the start and end of a job. Print data can be queued so that the markers are
processed simultaneously with the print data. When a marker is processed, it
sends an automatic reply. This guarantees that a management client listening
to the management data stream reads the replies in the order they were
processed on the print data stream.
The maximum job number is 65535 (Decimal), for printers released before
Oct 2006, and 4294967295 for printers released later.
The host can print the following command to indicate the start of a print job.
Any number can be used as the job number to identify the job. This example
uses 1234.
!PTX_SETUP
PRINTJOB-START;1234
PTX_END
When the command is eventually processed, a Job Status Message is sent
with a jobStart type attribute.
The end of a job can also be indicated with a Job End marker:
!PTX_SETUP
PRINTJOB-END;1234
PTX_END
When this command is eventually processed, a Job Status Message is sent
with a jobEnd type attribute.
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