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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
I'll never ask if I didn't check user manual, service manual, parts list, BSI/TNI/TAD... web, existing threads.
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