Samsung ProXpress M453x series Service Manual page 157

► Error Code
H1-1422
► Error message
Tray 4 cassette is pulled out. Insert it properly.
► Symptom
Tray 4 is pulled out or the cassette detection sensor connector is not connected or broken.
► Troubleshooting method
1) Remove and insert tray4 correctly.
2) If the problem persists, remove tray4 again.
3) Check if the cassette detection sensor cable is connected correctly. Unplug and reconnect it.
4) If the connection is OK, replace the cassette detection sensor(JC34-00001A).
5) If the problem persists, replace the SCF board(JC92-02754A).
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4. Troubleshooting
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