OKI OkiPage 10i All About this machine Error Code: All codes - 10 20 30 4 40 5 50 52 53 6 60 7 70 71 72 73 74 77 8 80 81 9 90 91 A B C F0 F1 F2 F3 F4 F5 F6 F7 Code: 73 Display: Description: A failure occurred with the fuser (thermistor error). Error Code Service Mode, Troubleshooting Parts Catalog Compatibility Downloads Files Home Email: Password: Sign In New Register Forgot Password? Send message to us