Samsung ML-451 Series Service Manual page 199

► Error Code
M1–5112
► Error message
Paper is empty in tray 1. Load paper.
► Symptom
Paper is empty in Tray1. The status LED is red.
► Troubleshooting method
1) Check if the paper is loaded in tray1. Load the paper.
2) Check if the empty sensor and empty actuator are assembled correctly.
3) If the empty sensor or empty actuator is defective, replace it.
4) If the problem persists, replace it.
► Error Code
M1–5612
► Error message
Paper is empty in MP tray. Load paper.
► Symptom
Paper is empty in MP Tray. The status LED is red.
► Troubleshooting method
1) Check if the paper is loaded in MP tray. Load the paper.
2) Check if the MP empty sensor and MP empty actuator are assembled correctly.
3) If the MP empty sensor or MP empty actuator is defective, replace it.
4) If the problem persists, replace it.
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4. Alignment and Troubleshooting
4-98