HP LaserJet 9000 Printer series - Manual (Page 58)

5 Printing 58
Printing envelopes
To change the fuser levers
1 Move the output device from the product to gain access to the left door.
2 Open the left door.
WARNING!
Avoid touching the adjacent fusing area as shown in step 2. It can be HOT.
3 Locate and lift up the two blue “T” shaped levers.
4 Return the fuser levers to the down position after printing an envelope.
5 Close the left door.
1
4
2
5