HP (Hewlett-Packard) CF081A#BGJ Benutzerhandbuch

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Tray 2 cassette lifter sensor 
1.
Remove Tray 2.
2.
In the Tray 2 cavity, insert a piece of paper in the Tray 2 cassette lifter sensor.
Figure 3-23
  Test the Tray 2 cassette lifter sensor
3.
Check the control-panel display for sensor response.
4.
If no response, replace the lifter-drive assembly.
ENWW
Tools for troubleshooting
275