Kyocera ECOSYS M4125idn

4. The cover open message appears after closing the front cover

Step	Check description	Assumed cause	Measures
1	Reattaching the front cover	The front cover does not turn the front cover sensor on due to the fitting failure.	Reattach the front cover.
2	Checking the connection	The connector is not connected properly, or the wire is faulty.	Clean the terminal of the following wire connectors and reconnect the connectors. If there is no continuity, replace the wire. • Front cover switch - Low-voltage PWB
3	Replacing the front cover switch	The front cover switch is faulty.	Replace the front cover switch.

5. The cover open message remains after closing the front cover

Step	Check description	Assumed cause	Measures
1	Checking the right cover switch	The covers are not fitted.	The right cover switch does not turn on when closing the right cover. If turning on when directly pressing it, check the cover. If the cover does not match, reattach it.
2	Checking the connection	The connector is not connected properly, or the wire is faulty.	Clean the terminal of the following wire connectors and reconnect the connectors. If there is no continuity, replace the wire. • Right cover switch - Engine PWB
3	Replacing the right cover switch	The right cover switch is faulty.	Replace the right cover switch.

6. The add paper message appears while the paper is loaded on the MP tray

Step	Check description	Assumed cause	Measures
1	Checking the connection	The connector is not connected properly, or the wire is faulty.	Clean the terminal of the following wire connectors and reconnect the connectors. If there is no continuity, replace the wire. • MP paper sensor - Relay connector • Relay connector - Engine PWB
2	Replacing the actuator	The actuator is deformed.	Replace the actuator for the MP paper sensor.
3	Checking the MP paper sensor	The MP paper sensor is not properly attached or it is faulty.	Reattach the MP paper sensor, and replace it if it is not fixed.
4	Replacing the Engine PWB	The Engine PWB is faulty.	Replace the Engine PWB.

7. When DP is used, [Remove the original from document processor] is wrongly displayed

Step	Check description	Assumed cause	Measures
1	Checking the connection	The DP original sensor wire is faulty	Check the DP original sensor wire. If it is constantly on due to short-circuit, replace the wire. • DP original sensor - DP PWB
2	Checking the actuator	The actuator is deformed.	Replace the actuator for the DP original sensor
3	Checking the DP original sensor	The DP original sensor is not attached properly or faulty.	Reattach the DP original sensor. If not repaired, replace it.
4	Replacing the DP PWB	The DP PWB is faulty.	Replace the DP PWB.