Samsung CLX-8540ND Service Manual page 309

● Code : 21-003
● Symptom :
Tray1 cassette is inserted in machine but error message is displayed.
● Possible Cause:
1. The connector of the Tray1 Home Position Sensor is not connected properly.
2. Tray1 Home Position Sensor is defective.
● Troubleshooting method :
1. Check if the Harness is defective.
Check if the connector is connected properly.
2. Check the following.
-. Check if the Tray1 Home Position Sensor is assembled properly.
-. Check if the Tray1 Home Position Sensor harness is connected properly.
-. Enter the EDC mode. Execute the Tray1 Home Position Sensor test.
(EDC Mode Test Routines
check Stop)
Troubleshooting
● Error message : Tray 1 cassette is pulled out. Insert it properly
Copier Engine/DADF Test Routine 102-000
4-147
Start Operation