Homebrew PCBs

Has anyone successfully used a HP 5P printer to do toner transfers?    
I'm using paper from Pulsar with a laminator that they sell (bought 
from Digi_Key).  The tone never sticks properly.  Pulsar tech support 
suggests I increase the Toner density to max.  The 5P manual states 
that the default density setting is 3 of a 1 to 5 scale.  I've gone 
through all the menu options in the printer menu but I can't seam to 
find any density settings other than econo_mode which I have set to 
off.  I'm using the driver supplied with XP currently but, I also 
looked at the old 2001 driver HP now has available on there site.  I 
have a new HP brand cartridge install so that is not an issue. Pulsar 
support also suggested that I check the temperature of the laminator to 
ensure it is around 270 to 290 C using a temperature probe.  The 
trouble there is that the only probe I can fine is at least .125" 
around.

If anyone can help I will truly be grateful.
Brian