Brother DCP-195C 扫描仪突然无法被识别

Brother DCP-195C 扫描仪突然无法被识别

在过去几周的某个时候,更新似乎导致我的 Brother DCP-195C 在 Ubuntu 14.04 LTS 下无法使用。USB 连接已建立,打印机可以正常工作,但扫描仪程序要么根本找不到扫描仪(例如 sane),要么虽然找到了扫描仪但无法访问扫描仪(例如 scanimage):

user@host:~$ lsusb | grep Brother
Bus 002 Device 008: ID 04f9:0222 Brother Industries, Ltd 
user@host:~$ dpkg -l | grep Brother
ii  brscan3             0.2.11-4  i386   Brother Scanner Driver
ii  dcp195ccupswrapper  1.1.3-1   i386   Brother CUPS Inkjet Printer Definitions
ii  dcp195clpr          1.1.3-1   i386   Brother lpr Inkjet Printer Definitions
user@host:~$ scanimage -L
device `brother3:bus1;dev1' is a Brother DCP-195C USB scanner
user@host:~$ scanimage -v -p
scanimage: open of device brother3:bus1;dev1 failed: Invalid argument
user@host:~$ sudo scanimage -v -p
[sudo] password for user: 
scanimage: rounded value of br-x from 215.9 to 215.88
scanimage: rounded value of br-y from 355.6 to 355.567
scanimage: output is not a file, exiting
user@host:~$ sudo sane-find-scanner
[...]
  # No USB scanners found. If you expected something different, make sure that
  # you have loaded a kernel driver for your USB host controller and have setup
  # the USB system correctly. See man sane-usb for details.
[...]

该系统在几周前确实可以运行,因此可能是对 sane 或类似系统的更新存在问题:

user@host:~$ dpkg -l | grep sane
ii  libsane:i386    1.0.23-3ubuntu3.1   i386  API library for scanners
ii  libsane-common  1.0.23-3ubuntu3.1   i386  API library for scanners -- documentation and support files
ii  libsane-hpaio   3.14.3-0ubuntu3.2   i386  HP SANE backend for multi-function peripherals
ii  sane-utils      1.0.23-3ubuntu3.1   i386  API library for scanners -- utilities
user@host:~$ uname -a
Linux host 3.13.0-37-generic #64-Ubuntu SMP Mon Sep 22 21:30:01 UTC 2014 i686 i686 i686 GNU/Linux

到目前为止,我尝试在清除旧驱动程序并从 Brother Linux 支持页面下载最新版本后重新安装所有驱动程序,但没有成功。此外,这不是权限问题 - 如果以提升的权限运行,上述输出是相同的。

有什么想法或类似的行为吗?


更新:输出scanimage -T正确通过,扫描头甚至开始移动 - 总体问题仍然没有变化。我也尝试过重新启动。

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