HP LaserJet Enterprise flow M830 Multifunction Printer series - Manual (Page 161)

2. Move the lower delivery guide handle to the right,
and then remove any paper.
3. Move the lower delivery guide handle to the left.
4. Grasp the green handle and pull the staple
carriage out.
5. Pull the green handle of the stapler unit toward
you and rotate it upward. Push the handle in to
lock it in the open position.
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ENWW Clear jams 151