Lexmark J110 Reference Manual page 271

To determine which status message keys your printer supports, see Table C-7 on
page C-25.
Table 4-16: Status Message Keys and Value Descriptions
Key Value Description
job 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.
status Printer activity at the time the message is sent:
Idle
Busy
Waiting
Initializing
Not ready
source Source of the job the server is executing:
Serial
Parallel
Network
USB
LocalTalk
Infrared
Internal
This field is omitted if the server is idle.
4-104
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
PostScript
displays.