Digital BW, The Print

I've acquired a used Epson 860 that had been printing with Lysonic 
inks. The black is totally clogged, and the color partially. I have 
unclogged Epson printers in the past using the old Windex trick, but 
don't know if this method can be used to unclog Lyson inks. I'm 
hesitant to try this without knowing if it will work or completely 
screw up the printer, and I don't know what solvent is used in the 
Lysonics. Would appreciate any guidance anyone can give me on getting 
this printer working again. Thanks.

Donald