Description: Toner motor error
The toner motor does not revolve, or the current protection circuit is activated.
Causes: • Overcurrent in the toner motor circuitry due to an excessive torque • Toner motor locked • Defective gate array U2 • Defective toner motor driver transistor or overcurrent detector.
Code: F0
Description: Controller system lock error
Main controller can not communicate with control panel [shown approx. 30 seconds since OS fails to continue operating.]
Causes: Connection error between main controller board and engine controller board, engine board and CON1 board, or CON1 board and front panel board.
Code: F1
Description: Main controller ROM checksum error
Checksum is failed with the system ROM
Causes:
Code: F2
Description: RAM read/write error
Checksum is failed with the RAM on the main controller board.