Lexmark W820 Service Manual page 196

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To select one of the sensors, press Menu until the sensor you want is displayed. Press
Select for that sensor. The following is a sample screen that may be displayed:
FIN Input Path
CL
Once this screen is displayed, you can manually actuate the sensor. When the sensor is
closed,
wrong message is displayed, then the sensor may be malfunctioning.
To exit the sensor test, press Return.
3-20
Service Manual
Stk Hight Upper
Stk Hight Lower
Stk Tray Low Lmt
Stack Tray Pos
Dock Interlock
Top Cover J
Front Cover K
Punch Dust Box M
H-Tra Gate
H-Tra Cover H
H-Tra Input Path
H-Tra Exit Path
Punch Dust
Top Tray Exit
Top Tray Full
Top Tray Empty
CL
is displayed. Likewise, when the sensor is open,
4025-XXX
OP
is displayed. If the