PASS is used for binary print files and/or files that are processed through any IBM printer driver, to produce PCL or PostScript files.
TEXT is used for print files that contain unformatted text with carriage returns, or unformatted text with carriage returns and line feeds.
Here is a list of some IBM printers that may have this requirement:
NOTE: When you use the Add Standard TCP/IP Printer Port wizard in Windows 2000, it configures the IBM port to use LPR and the LPD queue name as PASS. If the device cannot be contacted during configuration, you must select IBM Network Printer from the Standard Device Types list.