HP PageWide Enterprise Color 556

2. Before proceeding, take note of the tabs and bosses on the rear cover.
Figure 1-228 Find the tabs and bosses on the rear cover
3. Release the boss at the left-upper corner of the rear cover, and then release the remaining bosses along
the top of the cover (from left to right).
Figure 1-229 Release the top edge of the cover
ENWW Removal and replacement procedures 171