TP-LINK MFP and Storage Server

TP-LINK MFP and Storage Server

I have a TP-LINK MFP and Storage Server TL-PS310U. I would like to use it
to connect a printer to the local network.
I do not have Windows here (I have Linux Mint 13 on both computers), so I
can not install the software of the producer. I thought it could be used
also without the software. Maybe I am wrong here.
The device is connected to the router. I can see the IP address of the
device (192.168.1.100). I can ping it. I can open the web management of
the device (http://192.168.1.100/).
I have plugged a USB flash drive in the device. I can see the name of the
flash drive in the web management page as connected.
But I have no idea how I could access the files on flash drive. I have
tried to connect via Samba (smb://192.168.1.100/) or FTP
(ftp://192.168.1.100/) but it does not work.
It is possible to connect up to four USB devices to the device. So I guess
there should be separate IP address assigned to each of the USB devices.
It seems that I am missing the IP address assigned by the print server to
the USB flash drive.
Do you have any idea how I could access the flash drive (or printer) via
this device?