HP Color LaserJet 4700 Printer series - Manual (Page 237)

Clearing jams in the paper path
1. Remove any exposed jammed sheets.
2. Grasp the stapler/stacker unit by its handles and lift it off the body of the printer.
CAUTION The stapler/stacker unit weighs 9 kg (19.8 lb). For greater safety, you might
wish to remove the stapler/stacker while standing at the rear of the printer.
ENWW Clearing jams 221