Epson 4000 - Manual (Page 90)

Follow these steps to install a drive in the upper drive bay:
1. Remove the faceplate from the bay by pushing it forward, as
shown below.
Keep the faceplate in a safe place in case you remove a drive
later (or you are installing a drive that you don’t need to
access).
2. Remove any brackets or mounting frames from the drive.
See page 5-3 for instructions.
5-14 Installing and Removing Drives