I have an Epson and always use compatibles which work fine. Though I did read somewhere online quite a while ago that Epson were clamping down on this with their latest software updates, which would block the use of compatibles. I can't remember where I read this, but the advice given was to NOT install any software updates on the printer, so after that every time I got an 'Epson Printer Software Update' flash up on the screen, I just hit the cancel button.
Newer machines (mine is probably about 4 years old now) almost certainly have this later software installed, which will be why you have problems with compatibles.
I will naturally be wary of replacing my printer with an Epson when it finally kicks the bucket 