I purchased one new Cone Cyan cartridge during June as I dropped a Cone Cyan cartridge from a Cone set and it developed a sidewall leak. I refilled the new Cone Cyan properly and upon insert it threw a "not recognized cartridge" error. Removed and reseated the C cart and it recognized it, no error, tried to print a nozzle check and it threw the error again. Powered down the printer, powered up, all carts were good, tried to print a nozzle check, or a normal print and it threw the error. Pulled all 9 Cone carts, reinserted and still errors. Put in an OEM Cyan cartridge and everything worked fine. Tried the new Cyan cart again, still an error. I then replaced the chip from the new Cyan cartridge with the chip from the old Cyan cartridge and everything worked fine and normal, recognized, no errors, printed. The chip has the correct number on it for Cyan, but comparing the old and new chips, it looks as though the new chip is a different design according to the circuit board trace.