If using the remote interface: Select Library in the left menu. From the Mailslot drop-down , select Open and then click OK.
If using the local touch panel: On the Home screen, tap Mailslot. Tap Open Mailslot. If you do not see an Open Mailslot button, the mailslot is incorrectly assigned.
Pull the standard mailslot out from the upper-right corner of the Base Module.
If using the expanded mailslot, slide out the right magazine in the Base Module, supporting the weight with one hand. Be careful to hold it so that tape cartridges do not fall out of the slots
Add and/or remove cartridges, following the guidelines for handling tape cartridges.