Ну трам-тарарам... Книжицу почитать - не приходило в голову?
2330: Fuser pressure release motor over-current error: The over-current detection signal of the motor is detected continuously twenty times.
Causes:
1. Defective connector cable or poor contact in the connector ("Fuser pressure release motor to relay-L PWB" (YC11) and "Relay-L PWB to engine PWB"(YC2)).
2. Defective drive transmission system of the fuser pressure release motor.
3. Defective fuser pressure release motor.
4. Defective PWB.
Может, начать не с 3 и 4, а с 1 и 2?
Ты уверен, что на нем (на нагрузке) нету клина?