5. While holding the catch lever in the released position, raise the door to a 45-degree angle. Rotate the
rear side of the door to the right (callout 1), and then slide the door to the left (callout 2) to remove it.
Figure 1-89 Remove the left door
Step 2: Unpack the replacement assembly
1. Dispose of the defective part.
NOTE: HP recommends responsible disposal of the defective part.
http://www8.hp.com/us/en/hp-information/environment/product-recycling.html
80 Chapter 1 Removal and replacement ENWW