HP Color LaserJet CM6030CM6040 Multifunction Printer series - Manual (Page 267)

3. Push the upper delivery guide to the right, and remove any jammed paper.
1
2
4. Push the lower delivery guide to the right, and remove any jammed paper.
1
2
5. The positioning knob is the smaller, green dial on the right. Turn the positioning knob
counterclockwise.
6. The jam-release knob is the larger, green dial on the left. Push in the jam-release knob, and then
turn it clockwise to move any jammed paper into the output bin.
ENWW Jams 251