Heads MUST be piezo type (ie Epson) otherwise the sublimation process starts occurring in the print head and before the pressing as the heat from HP's heads is used for ink transport. Epson (and some others) use piezo heads which transport ink thru the heads using electrical charge, therefore no heat to lay down the ink.I have a 61” HP Designjet z6200 that I don’t use very much anymore and was wondering if you can or if anyone has converted one of these to a sublimation printer.