Commented out the USB config entry. This can block other USB scanners from

being recognized.

backend/epson.conf

@@ -10,6 +10,7 @@ scsi EPSON
 #pio 0x378
 #pio 0x3BC
 #
-# USB scanner
+# USB scanner - only enable this if you have an EPSON scanner. It could
-# /dev/usb/scanner0
+#               otherwise block your non-EPSON scanner from being 
-usb /dev/usbscanner0
+#               recognized.
+#usb /dev/usbscanner0