do not recognize the scanner

[beppe]

Simple-Scan do not detect the scanner on my Epson-Stylus-Office BX300F
Printer is OK!
Ubuntu 11.10 x64

ProblemType: Bug
DistroRelease: Ubuntu 11.10
Package: simple-scan 3.2.1-0ubuntu1~oneiric1
ProcVersionSignature: Ubuntu 3.0.0-17.30-generic 3.0.22
Uname: Linux 3.0.0-17-generic x86_64
NonfreeKernelModules: nvidia
ApportVersion: 1.23-0ubuntu4
Architecture: amd64
Date: Wed Apr 18 15:01:58 2012
DriverPackageVersions:
 libsane 1.0.22-2ubuntu2
 libsane-extras N/A
 hplip 3.11.7-1ubuntu3.1
 hpoj N/A
InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Release amd64 (20111012)
MachineType: System manufacturer System Product Name
ProcEnviron:
 PATH=(custom, no user)
 LANG=it_IT.UTF-8
 SHELL=/bin/bash
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.0.0-17-generic root=UUID=02d37200-e8bf-47bd-ab8e-5a44a963385c ro quiet splash vt.handoff=7
SimpleScanLog:

SourcePackage: simple-scan
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 08/12/2011
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: 1103
dmi.board.asset.tag: To be filled by O.E.M.
dmi.board.name: P8H67
dmi.board.vendor: ASUSTeK Computer INC.
dmi.board.version: Rev X.0x
dmi.chassis.asset.tag: Asset-1234567890
dmi.chassis.type: 3
dmi.chassis.vendor: Chassis Manufacture
dmi.chassis.version: Chassis Version
dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr1103:bd08/12/2011:svnSystemmanufacturer:pnSystemProductName:pvrSystemVersion:rvnASUSTeKComputerINC.:rnP8H67:rvrRevX.0x:cvnChassisManufacture:ct3:cvrChassisVersion:
dmi.product.name: System Product Name
dmi.product.version: System Version
dmi.sys.vendor: System manufacturer