Lexmark Optra W810 Service Manual page 212

4023-001
Sensor LED Output Adjustment
•
1st tray full detecting sensor LED PWB-E
•
Elevator tray empty sensor LED PWB-E
1. Turn VR (1, 4, and 7) on PWB-A fully clockwise (0 ohms).
Elevator tray empty sensor LED PWB-E
1st tray full detecting sensor LED PWB-E
2. Block the sensor with a sheet of paper.
3. Measure the voltage on the print jack on PWB-A.
Elevator tray empty sensor LED PWB-E
1st tray full detecting sensor LED PWB-E
4. Turn VR counterclockwise until the voltage reads 4.3V or more.
5. Remove the sheet of paper and check that the voltage is 0.8V
or less.
4-8
Service Manual
:VR4
:VR7
:PJ16A-11B
:PJ16A-7B