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。