HP 300X - JetDirect Print Server Administrator's Manual page 44

The line printer daemon on the HP Jetdirect print server treats
data in the text queue as unformatted text or ASCII, and adds a
carriage return to each line before sending it to the printer. (Note
that the actual observed behavior is that a PCL line termination
command (value of 2) is issued at the beginning of the job.) The line
printer daemon treats data in the raw queue as formatted files in
PCL, PostScript, or HP-GL/2 languages and sends the data without
change to the printer. Data in the auto queue will be automatically
processed as text or raw, as appropriate. If the queue name is not
one of the above, the HP Jetdirect print server assumes it to be
raw1.
Step 3. Printing a Test File
Print a test file using the LPD commands. For instructions, see the
information provided for your system.
44 Configuring for LPD Printing
ENWW