HP Scanjet N8460 Document Flatbed Scanner - Manual (Page 23)

To clean the feed roller, follow these steps:
1. Press the Power switch to the off position, and then disconnect the USB cable and
power cable from the scanner.
2. Open the ADF hatch.
3. Lift the green lever to raise the feed roller to the vertical position.
Maintain the automatic document feeder (ADF) 21