无法在 20.04 上安装 USB 扫描仪 Brother7420

无法在 20.04 上安装 USB 扫描仪 Brother7420
  • 尝试使用文档扫描仪. 我收到有关未找到扫描仪的错误
  • 下载的驱动程序来自兄弟网站
  • dpkg -i brscan2-0.2.5-1.amd64.deb
  • 执行brsaneconfig2 -d并回复:found USB scanner (vendor=0x04f9, product=0x0180) at libusb:003:002scanimage -L回复:No scanners were identified.
  • 在类似的打印机兄弟发布一些关于如何在常问问题这意味着要修改/lib/udev/rules.d/40-libsane.rules,但该文件不再存在于 ubuntu 20.04 上,所以我不确定如何跟进。
  • 发现了缺少usb库的错误,但是还是有问题:

root@ubuntu20:/home/usuario# scanimage --test

scanimage: open of device brother2:bus2;dev1 failed: Invalid argument

答案1

缺少 libusb-0.1-4:

root@ubuntu20:~# SANE_DEBUG_DLL=3 scanimage -L
    [23:30:54.437751] [dll] load: searching backend `brother2' in `/usr/lib/x86_64-linux-gnu/sane:/usr/lib/sane:/usr/lib64/sane'
    [23:30:54.437770] [dll] load: dlopen()ing `/usr/lib64/sane/libsane-brother2.so.1'
    [23:30:54.437995] [dll] load: dlopen() failed (libusb-0.1.so.4: cannot open shared object file: No such file or directory)

因此缺少 libusb-0.1-4:apt-get install libusb-0.1-4

root@ubuntu20:~# scanimage -L
device `brother2:bus2;dev1' is a Brother MFC-7420 USB scanner

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