I'm afraid my personal experience with Sublimation inks is pretty much nill so I can't help you on this score..
A good place to try though would be:
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Steve's Forums - DyeSub printers
One thing to note though... I'm pretty sure the printer you've identified would not actually work with dyesublimation inks so you might well want to check that first. I'm also pretty sure that dyesub is not something that's actually supportable using CIS.. At least not yet.
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Printers: (Canon) MP500/830, MX700, iP4000/4200/4300/4500/5200, iX4000(A3) (Epson) C84/86, D88, CX6600, R285/800/1900 (HP) K550, K850, K5400, L7680