we have a FO-2081 F2-70 Error then goes to AO-30 error. Originally started with the AO-30 Error and we went in and corrected the Destination and was good for two months. The error came back and sharp desk said to replace the Eprom which we did. Once we replaced it would start out with the f2-70 then half a minute later goes into the AO-30. We tried a new cartridge with no change. the 22-13 reads the crum type as 1 but the FO machine should be a 3. both the old and new toner cartridge read the same. Almost ready to drag it behind the service truck letting the pieces fall all over the road.