Epson's T0806 (C13T080640) Light Magenta ink cartridges
are compatible with the following printers:

Epson Stylus Photo
P50,
PX650, PX660,
PX700W, PX710W, PX720WD,
PX800FW, PX810FW, PX820FWD, PX830FWD,
R265, R285,
R360,
RX560, RX585,
RX685.