CLI 270/271 refillables from Precision Colors and less than a year old. The printer is a TS9020. The problems started a few months ago with the Magenta cartridge not being recognized after refilling. Despite getting an error message when inserting the Magenta cartridge I could turn the printer off and back on and it would print, and the Magenta cartridge was shown as being refilled. Fast forward a few more months. The BK and PGBK were running low and I refilled them. They weren't recognized as being refilled - that is, they didn't reset. No problem, I waited until I got the message that the ink cartridges may have run out and tried removing and reinserting the two black cartridges. Again they didn't reset. The printer continues to print but the two black cartridges are shown as being empty. I tried removing all of the cartridges so that the offending Magenta wasn't in place and started by reinserting the two black cartridges. They still didn't reset. I put all of the cartridges back. The last cartridge to go in is the Magenta and then it throws an error code. I see there's a reset method to clear the 6502 error code, but this printer doesn't have a resume button to push so I can't use the methods listed on line. Resetting might be unnecessary because as I mentioned, the printer continues to print. It just isn't recognizing the two blacks as being refilled, and on insertion of the Magenta cartridge it throws an error message. Is there a fix other than replacing the cartridges?