I have an Epson 3800 running Cone Color inks. A while ago I started getting this error msg (see post title) for the maintenance cartridge.
I have tried taking out and replacing the same cartridge a number of times, as well as turning the printer off and on again multiple times. I double-checked the chip with the taped-off pin and it seemed to be in order. After a while I decided to just buy a new OEM maintenance cart. to replace the one that has been giving me problems, but to no avail!
Do you have any suggestions?