A user inserts one or more consumable enclosures into one or more corresponding slots of a printing device. The user engages a locking mechanism of the printing device into a corresponding feature of each consumable enclosure. The printing device detects user engagement of the locking mechanism. In response to the user performing a consumable enclosure-related action, the printing device substantially impedes user access to the locking mechanism and the consumable enclosures until the user has entered an unlock code.