HP LaserJet Print to Mail Accessories - Manual (Page 16)

14 2 Setup EN
Installing the output bin
The output bin must be installed and seated correctly before the
accessory will operate.
1 Locate two notches on each side, just inside the opening at the
rear of the accessory.
2 Also locate two tabs on each side of the output bin.
3 Insert the output bin into the opening, first sliding the tabs all the
way into the notches, and then lowering the output bin down into
place.
Figure 9. Installing the output bin
Adjusting the output bin
The output bin has two settings:

Retracted, the output bin works well for letter-sized media.

Extended, the output bin works well for legal-sized media.
Simply slide the bottom of the output bin to the retracted or extended
position.
The bottom of the output bin can be removed to allow folded media to
fall into a separate container. For information about using a separate
container, see “Large mailings” in Chapter 3—Using the accessory.