Just wanted to make people aware that if their Mac or PC says there's a printer update available for their Epson, and they're using compatible cartridges, then DONT INSTALL IT.
I've had an Epson D92 printer and I've been using compatible cartridges for the past 2 years and it's worked fine. On Friday my Mac told me that it wanted to install a printer update and I let it do it. Since then my compatible cartridges don't work and the printer keeps asking me to replace them.
Windows users may be offered a similar update via Windows Update. As far as I can tell this is due to the printer update, and there's no going back as it updates the printer itself.
I've emailed Consumable City who I get my compatible cartridges from to see if they know anything about this, and will post an update here when I find out more.
It could well be caused by something else, but I'd advise you not to take the risk until there's more info about it.