HP PCL/PJL reference - Printer Job Language Technical Reference Manual

EN Status Readback Commands 7-7

If a printer language-specific variable is not available because that

printer language is not installed or is invalid, or if a port-specific

variable is not available because that port is not supported, the

command will return an appropriate error code if USTATUS

DEVICE=VERBOSE is enabled.

Note The LPARM : personality option must be used when requesting

printer language-specific information.

The IPARM : port option must be used when requesting port-specific

information.

Example: Using INQUIRE to Request Feature Settings

This example requests the current print environment settings for RET,

PAGEPROTECT, RESOLUTION, PERSONALITY, and TIMEOUT.

The printer response for this example is listed below.

@PJL COMMENT ***Inquiring About <CR><LF>

@PJL COMMENT Environment Settings*** <CR><LF>

@PJL ECHO 02:18:23.9 05-30-92 <CR><LF>

@PJL INQUIRE RET <CR><LF>

@PJL INQUIRE PAGEPROTECT <CR><LF>

@PJL INQUIRE RESOLUTION <CR><LF>

@PJL INQUIRE PERSONALITY <CR><LF>

@PJL INQUIRE TIMEOUT <CR><LF>

<ESC>%-12345X

For the HP LaserJet 4 printer, a sample printer response for this

example is as follows. Other PJL printers may respond differently.