HP Color LaserJet 4730 Multifunction Printer series - Manual (Page 305)

Jam in the stapler/stacker
1. Push the release lever on the top of the stapler/stacker.
2. Slide the stapler/stacker out.
3. Remove any media between the stapler/stacker and the MFP.
4. If the jam does not clear, see Other jams in the output accessory bridge .
To clear staple jams, see Staple jams .
ENWW Clearing jams 285