HP 7400C Series - Manual (Page 98)

98 Troubleshooting usage and maintaining Back to TOC
Replacing the ADF Window
If the ADF window becomes scratched or uncleanable, you might need
to replace it. Order the ADF window from Hewlett-Packard.
To remove the ADF window
1 Disconnect the ADF cable from its port on the scanner.
2 Lift the ADF off of the scanner. Lift firmly using your fingers to
separate the rear bracket from the scanner.
3 Lift the input tray of the ADF to expose the ADF window.
4 Using a small coin, push each of the four Z-shaped hooks until the
tab snaps out of position. Push the long, pointed tab on the end of
the window.