Samsung SL-X7600GX Service Manual page 397

► Error Code
H1-2351 / H1–2352
► Error message
Paper is low in Tray 3. Load paper.
Paper is empty in Tray 3. Load paper.
► Symptom
Paper in the HCF tray is less than 10% of specification. / The photo sensor is defective.
► Troubleshooting method
1) Remove HCF tray. Load the paper in HCF tray.
2) If paper is loaded but error message has not disappeared, check the following.
a) Remove the HCF pick up unit.
b) Check if the photo sensor in the HCF pick up unit is contaminated. If so, clean it.
c) If the photo sensor(0604-001393) is defective, replace it.
d) If the actuator(JC66-04399A) is defective, replace it.
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4. Troubleshooting
4-146