Printer printing control codes

Solaris 10:

Having some trouble with a new printer printing control codes. This is an HP MFP M632.

Tried a few ppd files and without a ppd file using commands similar to the follow:

lpadmin -p L4102A -v /dev/null -m netstandard -n /usr/lib/lp/model/ppd/system/foomatic/HP/HP-LaserJet_5MP-Postscript.ppd.gz -o protocol=bsd -o dest=10.223.32.83 -o banner=never -I postscript

Anyone have any ideas?

Have you tried adding a PJL wrapper to the print file to set the printer to Postscript mode?