Input System Failure: #H1-1230. Check Tray 2 Connection; Tray Failure: #H1-1236. Check Tray Connection; Tray Failure: #H1-1237. Check Tray Connection - Samsung CLX-8640 series Service Manual

4. Troubleshooting
► Error Code
H1-1230
H1-1236
H1-1237
► Error message

Input System Failure: #H1-1230. Check Tray 2 connection.

Tray Failure: #H1-1236. Check Tray connection

Tray Failure: #H1-1237. Check Tray connection

► Symptom
The communication error between the optional tray and the main machine has occurred.
► Troubleshooting method
1) Check if the TCF unit connector is connected to the machine correctly. Reconnect it.
2) Check if the TCF connector on main board is connected correctly.
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