HP 3380 - Manual (Page 103)

Installing an ADF
If you are experiencing repeated jams in the automatic document feeder (ADF), you might
need to replace it. See for information about ordering a replacement ADF.
To install a replacement ADF
1. Remove the flatbed scanner lid by opening it and gently lifting straight up.
Note If you are replacing an existing ADF, you must first pull up both hinge tabs before lifting the
ADF up and out of the device.
2. On the new ADF, unfold the hinges and pull up the tab on each hinge.
3. Install the new ADF by inserting the hinges straight down into the device.
4. Push down on both tabs until they click.
ENWW Installing an ADF 91