HP Color LaserJet 5500 Technical Reference Manual page 148

Example: Using
Unsolicited Page
7-40 Status Readback Commands
The following example enables unsolicited page status. The
sample HP LaserJet 4 printer response indicates the status
messages that the printer sends when processing a four-page
Status
job.
<ESC>%-12345X@PJL <CR><LF>
@PJL USTATUS PAGE = ON <CR><LF>
@PJL JOB <CR><LF>
@PJL ENTER LANGUAGE = PCL <CR><LF>
<ESC>E . . . Four-page PCL Job . . . <ESC>E
~<ESC>%-12345X@PJL <CR><LF>
@PJL EOJ <CR><LF>
<ESC>%-12345X
A sample HP LaserJet 4 printer response for unsolicited
page status is shown here. Other PJL printer responses
may vary.
@PJL USTATUS PAGE<CR><LF>
1<CR><LF>
<FF>
@PJL USTATUS PAGE<CR><LF>
2<CR><LF>
<FF>
@PJL USTATUS PAGE<CR><LF>
3<CR><LF>
<FF>
@PJL USTATUS PAGE<CR><LF>
4<CR><LF>
<FF>