- 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:003:002
但scanimage -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