Answering my own question, the HP B8550 seems to be an RGB printer. I downloaded previously made profiles for my printer from here: http://www.johannesdejong.com/Default.aspx?tabid=361&EntryID=15 I then typed the following: ./targen -v -d4 -f508 -c ~/path-to/PS B8500-Advanced Photo (Best).icc HP-B8500-508-patches which produces: ==> targen: Error - ICC profile doesn't match device! Whoops! The ICC profile that I was using to pre-condition my testing didn't work (I'm using Canon Matte paper for my print, hence why I'm profiling the printer when there are already profiles for selected paper types). So I guess it isn't a CMYK printer. Trying ./targen -v -d2 -f508 -c ~/path-to/PS B8500-Advanced Photo (Best).icc HP-B8500-508-patches works and produces the following the .ti1 file, so I guess the B8550 is an "RGB" printer. I then go ahead and do ./printtarg -v -iCM -T -h -p 330.2x482.6 HP-B8550-508-patches to make a print-sheet for 13 x 19 inch Canon Matte paper.