Download drivers from Brother website both for printer and scanner and my model is DCP-L2540DW http://support.brother.com/g/b/downloadtop.aspx?c=sg&lang=en&prod=dcpl2540dw_us_as Choose Linux and deb to download. After downloading its very likely the file is found in Download file . Open terminal and type
thomas@thomas-H81MHV3 ~ $ cd Downloads thomas@thomas-H81MHV3 ~/Downloads $ sudo dpkg -i dcpl2540dwlpr-3.2.0-1.i386.deb [sudo] password for thomas: (Type in your own password ) thomas@thomas-H81MHV3 ~/Downloads $ scanimage -L device `brother4:bus2;dev4' is a Brother DCP-L2540DW USB scanner thomas@thomas-H81MHV3 ~/Downloads $ sudo dpkg -i brscan4-0.4.3-3.amd64.deb thomas@thomas-H81MHV3 ~/Downloads $ scanimage -L device `brother4:bus2;dev4' is a Brother DCP-L2540DW USB scanner thomas@thomas-H81MHV3 ~/Downloads $ scanimage --test scanimage: open of device brother4:bus2;dev4 failed: Invalid argument thomas@thomas-H81MHV3 ~ $ lsusb Bus 002 Device 002: ID 8087:8000 Intel Corp. Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 001 Device 002: ID 8087:8008 Intel Corp. Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 004 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub Bus 003 Device 005: ID 0b05:1786 ASUSTek Computer, Inc. USB-N10 802.11n Network Adapter [Realtek RTL8188SU] Bus 003 Device 004: ID 04f9:0328 Brother Industries, Ltd Bus 003 Device 009: ID 046d:c31c Logitech, Inc. Keyboard K120 Bus 003 Device 008: ID 04d9:1135 Holtek Semiconductor, Inc. Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub (The bus is 003 and Device is 004 for my brother printer you need to change to yours accordingly) thomas@thomas-H81MHV3 ~ $ sudo chmod a+w /dev/bus/usb/003/004 [sudo] password for thomas: thomas@thomas-H81MHV3 ~ $ scanimage -L device `brother4:bus2;dev4' is a Brother DCP-L2540DW USB scanner -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to sane-backends in Ubuntu. https://bugs.launchpad.net/bugs/913938 Title: Detected scanner fails to open device, "Invalid Argument" Status in sane-backends package in Ubuntu: Confirmed Bug description: Hello, I've installed the latest drivers from the Brother support website for my Brother DCP-165C. Printing works fine, but I can't get scanning working... I have followed all instructions provided by the Brother support website (udev rules, etc). I'm running Ubuntu Server 11.10. No matter whether I'm running scanimage (or xsane) as sudo or not, I'm getting the same error message: "scanimage: open of device brother3:bus2;dev1 failed: Invalid argument" You can find a strace attached (ran with sudo). Some more outputs: scanimage -L device `brother3:bus2;dev1' is a Brother DCP-165C USB scanner sane-find-scanner # sane-find-scanner will now attempt to detect your scanner. If the # result is different from what you expected, first make sure your # scanner is powered up and properly connected to your computer. # No SCSI scanners found. If you expected something different, make sure that # you have loaded a kernel SCSI driver for your SCSI adapter. found USB scanner (vendor=0x04f9, product=0x0204) at libusb:007:002 found USB scanner (vendor=0x0bda, product=0x8187) at libusb:002:003 # Your USB scanner was (probably) detected. It may or may not be supported by # SANE. Try scanimage -L and read the backend's manpage. # Not checking for parallel port scanners. # Most Scanners connected to the parallel port or other proprietary ports # can't be detected by this program. # You may want to run this program as root to find all devices. Once you # found the scanner devices, be sure to adjust access permissions as # necessary. sudo sane-find-scanner # note: there is a minor difference to the output of the command ran without sudo... [sudo] password for tom: # sane-find-scanner will now attempt to detect your scanner. If the # result is different from what you expected, first make sure your # scanner is powered up and properly connected to your computer. # No SCSI scanners found. If you expected something different, make sure that # you have loaded a kernel SCSI driver for your SCSI adapter. found USB scanner (vendor=0x04f9 [Brother], product=0x0204 [DCP-165C]) at libusb:007:002 found USB scanner (vendor=0x0bda, product=0x8187 [RTL8187B_WLAN_Adapter]) at libusb:002:003 # Your USB scanner was (probably) detected. It may or may not be supported by # SANE. Try scanimage -L and read the backend's manpage. # Not checking for parallel port scanners. # Most Scanners connected to the parallel port or other proprietary ports # can't be detected by this program brscan-skey -l DCP-165C : brother3:bus2;dev1 : USB Active Thanks for your help and have a great day Tom To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/sane-backends/+bug/913938/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp

