Help! Canon s300 light flashing 1 time !!!

[ontophehe]

I have 2 Canon printer S300 both have flashing light alternate ( one green, one yellow ) happen same day !!!
I did try many didderent way to reset it but cannot !!!
Please help !!!

[ontophehe]

just got one from Ebay this morning, plug in...same thing happen green/yellow light flashing alternate (1/1) have to return it, lost $26 shipping (13+13 )