HP Color LaserJet 5500 Technical Reference Manual page 120

Example: Using
DINQUIRE to
Request Feature
Settings
7-12 Status Readback Commands
This example requests the default settings for resolution
and personality. The printer returns values of 600 and
AUTO.
<ESC>%-12345X@PJL <CR><LF>
@PJL COMMENT Inquiring Default Settings
~<CR><LF>
@PJL ECHO 08:10:33.7 04-17-93 <CR><LF>
@PJL DINQUIRE RESOLUTION <CR><LF>
@PJL DINQUIRE PERSONALITY <CR><LF>
<ESC>%-12345X
For the HP LaserJet 4 printer, a sample response for this
example is as follows. Responses from other PJL printers
may vary.
@PJL ECHO 08:10:33.7 04-17-93<CR><LF>
<FF>
@PJL DINQUIRE RESOLUTION<CR><LF>
600<CR><LF>
<FF>
@PJL DINQUIRE PERSONALITY<CR><LF>
AUTO<CR><LF>
<FF>