Instalei os drivers do Brothers Linux em seu site e a função da impressora parece funcionar, mas a função do scanner não. Executando Simple Scan Eu recebo o erro: Não é possível conectar ao scanner. Minha impressora / scanner está conectada via USB. Ubuntu MATE 14.10 64 bit.
Tenho notado que posso rodar o scanner usando o sudo, então estou supondo que tenho um problema de permissão.
A pergunta aqui é como permitir que um usuário normal execute meu scanner sem privilégios elevados.
Eu coloquei algumas saídas da minha solução de problemas abaixo.
lusb mostra:
Bus 002 Device 003: ID 05e3:0716 Genesys Logic, Inc. USB 2.0 Multislot Card Reader/Writer
Bus 002 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 006 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 005 Device 003: ID 06a3:0728 Saitek PLC
Bus 005 Device 002: ID 1532:0034 Razer USA, Ltd
Bus 005 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 002: ID 1058:0704 Western Digital Technologies, Inc. Passport External HDD
Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 001 Device 003: ID 04f9:0282 Brother Industries, Ltd
Bus 001 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
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.
could not fetch string descriptor: Pipe error
could not fetch string descriptor: Pipe error
found USB scanner (vendor=0x04f9 [Brother], product=0x0282 [MFC-J625DW]) at libusb:001:003
# 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.
dpkg -l | grep Brother
ii brscan-skey 0.2.4-1 amd64 Brother Linux scanner S-KEY tool
ii brscan4 0.4.2-1 amd64 Brother Scanner Driver
ii mfcj625dwcupswrapper 3.0.0-1 i386 Brother CUPS Inkjet Printer Definitions
ii mfcj625dwlpr 3.0.1-1 i386 Brother lpr Inkjet Printer Definitions
ii printer-driver-brlaser 3-3 amd64 printer driver for (some) Brother laser printers
ii printer-driver-ptouch 1.3-8 amd64 printer driver Brother P-touch label printers
Portanto, não posso testar isso como nenhum acesso ao scanner USB, mas vi um grupo em /etc/groups chamado scanner
você pode tentar adicionar um usuário a este grupo e fazer o logout e voltar como usuário e teste?
sudo usermod -a -G scanner usernamehere