"PRINTER printername"
Sets the name of the target printer.
Name of the printer should be the same as it appears in "My Computer / Printers" folder.
Note. The maximum length of a printername is 127 characters.
Example
send "FILE c:\\Print.txt PRINTER \\Server\HP iii Si\n" to PRINTER_LA
If you don't specify PRINTER command then ESL will try to use your default printer. If there is no default printer ESL will pop-up the printer selection dialog box, as if the "LISTPRINTERS" command had been used.
If the specified printer does not exist ESL will also display printer selection dialog box.