Lexmark C530DN Technical Reference - Page 289

4-94 PostScript Status Messages Your printer responds to a Ctrl+T (x'14') status query on an interface by sending a one-line status message back to the host computer over the same interface. If the status query is received between print jobs and the printer is idle with no error conditions, an idle response is returned to the host computer. Status messages are bracketed by the characters %%[ and ]%%, so the computer software can extract them from other data generated by the current print job. They follow a standard syntax, consisting of one or more key-value pairs, separated by semicolons. For example: %%[ job: Project Report; status: busy; source: Parallel ]%% The following table lists the possible keys and value descriptions. To determine which status message keys your printer supports, see Table C-7 on page C-26. Table 4-12: Status Message Keys and Value Descriptions Key job status source Value Description The name of the print job, as stored in the JobName entry in statusdict. This field is omitted if the current print job has no defined JobName. Printer activity at the time the message is sent: Idle Busy Waiting Initializing Not ready No job in progress Executing a PostScript emulation program and/or printing pages I/O wait in mid-job During startup Printer menus display or Not Ready displays. Source of the job the server is executing: Serial Parallel Network USB LocalTalk Infrared Internal This field is omitted if the server is idle.