Epson WorkForce Pro WF-6090 Printer with PCL/PostScript - Manual (Page 78)

You see a window like this:
3. Make sure Acquire from Printer is selected, then click Get .
The optional paper sources are listed in the Current Printer Information section.
4. Click OK .
The optional paper cassettes are now enabled.
Parent topic: Installing the Optional Paper Cassette Units
Related tasks
Synchronizing Printer Settings - Epson Universal Print Driver - Windows
Enabling the Optional Paper Cassettes - PostScript Printer Software - Windows
Enabling the Optional Paper Cassettes - OS X
You need to enable the optional paper cassette units before you can use them with the printer software.
78