| Generally it is:
Auto-toner error (K)
Is the harness between the LGC board and the EPU drawer connector open-circuited?
Is any harness inside the EPU or the auto-toner sensor harness open-circuited?
Is the auto-toner sensor connector or the connector J120 on the LGC board disconnected?
Reconnect the connector. Replace the harness.
1. Replace the auto-toner sensor.
2. Replace the LGC board.
But first check main corona (K) for breakage and if it seated right.
BR |