| Symptom | Most Likely Code | First Action | |---------|----------------|---------------| | No rotation / loud grind | C6000 | U030 motor test | | Paper stops at exit | C7340 | U031-33 (eject sensor) | | Scanner unit noise | C6750 | Replace scanner drive belt | | "Call for service" only | F245 | Reload firmware | | Won't warm up | C7101 | Check fuser lamps |