Density Sensor Error - Lexmark C920 Service Manual

5056-XXX

994 - Density Sensor Error

Step Questions/actions
1 Is the front door fully closed?
2 Is the density sensor actuator stuck in place?
3 Are connectors CN406 and CN407 on the sensor
board connected properly?
4
Is connector CN15 on the printer controller board
connected properly?
5 Did replacing the density sensor fix the problem?
2-26
Service Manual
Yes No
Go to step 2. Close the front
door.
Release the Go to step 3.
density sensor
actuator.
Go to step 4. Plug the
connector in
securely.
Replace the Plug the
density sensor. connector in
Go to step 5. securely.
Problem solved. Replace the
printer controller
board.