Eu instalo o driver de impressora para este dispositivo no site oficial da Canon. Tudo está bem e posso imprimir documentos. Mas com a situação do scanner é ruim. Eu vejo na página do projeto SANE que a Canon MF231 é totalmente suportada, mas o sistema não vê qualquer dispositivo de scanner de USB.
Quando eu verifico lsusb , recebo:
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 004: ID 1c4f:0026 SiGma Micro Keyboard
Bus 003 Device 003: ID 093a:2510 Pixart Imaging, Inc. Optical Mouse
Bus 003 Device 002: ID 04a9:27d1 Canon, Inc.
Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Quando eu digito o comando scanimage -L :
No scanners were identified. If you were expecting something
different,
check that the scanner is plugged in, turned on and detected by the
sane-find-scanner tool (if appropriate). Please read the documentation
which came with this software (README, FAQ, manpages).
Quando eu digito: sudo 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=0x04a9 [Language Error], product=0x27d1
[Language Error]) at libusb:003:002
# 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.
E finalmente este é o relatório of apt list libsane-dev -a :
libsane-dev/xenial 1.0.27+git20171029-xenial0 amd64 [can be updated:
1.0.25+git20150528-1ubuntu2.16.04.1]
libsane-dev/xenial-updates,now 1.0.25+git20150528-1ubuntu2.16.04.1
amd64 [installed, can be updated: 1.0.27+git20171029-xenial0]
libsane-dev/xenial 1.0.25+git20150528-1ubuntu2 amd64
Eu li muitos problemas na internet, mas eles são muito antigos (desde 2007-2011). SANE é totalmente suportado MF231 scan, então porque o Ubuntu 16.04 (.03 LTS) não vê scanner deste dispositivo?
Nota: Antes de fazer tal instalação. Mas no Ubuntu 17.04. Depois, há o mesmo problema, mas o usuário sugeriu que não há pacote suficiente: libsane-dev . Eu instalo, mas sem efeito.
Obrigado.