Samsung CLX-9201 Service Manual page 333

► Error Code
M1-3122
► Error message
Tray 1 cassette is pulled out. Insert it properly.
► Symptom
Tray 1 is pulled out or the auto size sensor connector is not connected or broken.
► Troubleshooting method
1) Remove and insert Tray1 correctly.
2) If Tray1 is not locked or pulled out without holding the locking lever, remove Tray1.
3) Check if foreign substance or paper is inside the space between Tray1,2. If so, please remove it.
4) If the problem persists, check that the auto size sensor is connected properly.
(Refer to 3.3.20. Auto Size sensor)
5) If the problem persists, replace the main board(JC92–02452A).
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4. Troubleshooting
4-150