OS X 10.1 now uses the 'o' command option in control files of a print job. The version of lpd in NeXTSTEP and other UNIX systems probably doesn't understand this 'new' option. I found a simple solution for that problem. You can batch the LPRIOMHelper. The file is located here:
/System/Library/Printers/IOMs/LPRIOM.plugin/Contents/MacOS/LPRIOMHelper
Use a hex editor to replace 0x6F with 0x6C ('o' -> 'l') at position 0x1A03 (6659 Dez). You need root permissions to do that. And check for the right file attributes after editing the file:
-rwsr-xr-x 1 root wheel 18984 Oct 21 20:31 LPRIOMHelperThe UNIX commands to set the owner and file attributes for LPRIOMHelper are:
chown root.wheel LPRIOMHelper
chmod a+x LPRIOMHelper
chmod u+s LPRIOMHelper

