如何访问 Brother 网络扫描仪

如何访问 Brother 网络扫描仪

我有两台位于不同网络中的网络/USB 一体机,分别是 Brother MFC-7840W 和 Brother MFC-9840CDW。系统上的操作系统是 Ubuntu 14.04 LTS。USBx86_64可用于打印和扫描。网络访问曾经用于打印和扫描两个设备。

现在,网络打印可以在 MFC-9840CDW 上运行,但在 MFC-7840W 上却不行,网络扫描在这两台机器上都行不通。最近有一些操作系统自动更新,我安装/卸载了几个软件程序。但我没有更改扫描仪和打印机的驱动程序,所以我不知道它突然停止工作的任何明显原因。

如何才能重新获得 Brother 一体机扫描的网络访问权限?

以下是我已采取的措施:

在终端中,我输入命令:

scanimage --list-devices

输出:

[pixma] udp_command: No data received (select): timed out  
[pixma] udp_command: No data received (select): timed out  
[pixma] udp_command: No data received (select): timed out  
[pixma] Cannot read scanner make & model: *��  
device 'brother3:net1;dev1' is a Brother MFC-9840CDW Scanner-MFC-9840CDW  
device 'brother3:net1;dev0' is a Brother MFC-7840W Scanner-MFC-7840W  

看起来设备已经连接上了。

为了测试该设备,我输入以下命令:

scanimage --test 'brother3:net1;dev0'  

输出:

[pixma] udp_command: No data received (select): timed out
[pixma] udp_command: No data received (select): timed out
[pixma] udp_command: No data received (select): timed out
[pixma] Cannot read scanner make & model: a�i$
<b>scanimage: open of device brother3:net1;dev1 failed: Invalid argument  

...为什么 MFC-7840W 设备 (兄弟3:net1;dev0) 显示?...

然后,我打开文件:/usr/local/Brother/sane/brsanenetconfig3.cfg,输出以下两行:

DEVICE=Scanner-MFC-7840W , "MFC-7840W" , 0x4f9:0x1e5 , NODENAME=BRN904CE598109B  
DEVICE=Scanner-MFC-9840CDW , "MFC-9840CDW" , 0x4f9:0x1cc , NODENAME=BRW29571E  

我认为第二行可能会导致我的问题,因此我将其注释掉:

DEVICE=Scanner-MFC-7840W , "MFC-7840W" , 0x4f9:0x1e5 , NODENAME=BRN904CE598109B  
#DEVICE=Scanner-MFC-9840CDW , "MFC-9840CDW" , 0x4f9:0x1cc , NODENAME=BRW29571E  

然后,我返回终端并重新输入命令:

scanimage --test 'brother3:net1;dev0'  

输出:

[pixma] udp_command: No data received (select): timed out  
[pixma] udp_command: No data received (select): timed out
[pixma] udp_command: No data received (select): timed out
[pixma] Cannot read scanner make & model: q*& 
scanimage: open of device brother3:net1;dev0 failed: Invalid argument  

为什么会出现“无效参数”?

然后,我输入命令:

dpkg -l | grep Brother  

输出:

ii  brmfc7840wlpr            2.0.2-1   i386   Brother  MFC-7840W  LPR       driver
ii  brother-udev-rule-type1  1.0.0-1   all    Brother  udev       rule      type     1
ii  brscan-skey              0.2.4-1   amd64  Brother  Linux      scanner   S-KEY    tool
ii  brscan3                  0.2.11-5  amd64  Brother  Scanner    Driver
ii  cupswrappermfc7840w      2.0.2-1   i386   Brother  MFC7840W   CUPS      wrapper  driver
rc  libsane-dsseries         1.0.5-1   amd64  Brother  DS-series  scanners  driver
ii  mfc9840cdwcupswrapper    1.0.3-1   i386   Brother  CUPS       Color     laser    Printer      Definitions
ii  mfc9840cdwlpr            1.0.3-1   i386   Brother  lpr        Inkjet    Printer  Definitions
ii  printer-driver-ptouch    1.3-8     amd64  printer  driver     Brother   P-touch  label        printers  

我应该做什么才能访问我的 Brother MFC-7840W 网络扫描仪?

更新 1:根据评论,我将文件libsane-brother*和复制libbrscandec*到文件夹/usr/lib/sane/usr/lib

为了测试该设备,我输入以下命令:

scanimage --test 'brother3:net1;dev0'  

输出:

scanimage: open of device brother3:net1;dev0 failed: Invalid argument  

看来我离解决方案更近了一步,但是 MFC-7840W 设备(兄弟3:net1;dev0) 仍然不起作用。

更新2:我输入命令:dpkg -L brscan3,输出以下内容,复制到仅包含/usr/lib64

/usr/lib64
/usr/lib64/libbrscandec3.so.1.0.0
/usr/lib64/sane
/usr/lib64/sane/libsane-brother3.so.1.0.7
/usr/lib64/libbrscandec3.so
/usr/lib64/libbrscandec3.so.1
/usr/lib64/sane/libsane-brother3.so.1
/usr/lib64/sane/libsane-brother3.so

答案1

文件中/lib/udev/rules.d/40-libsane.rules有以下两行(从第 42 行开始):

# Brother scanners ATTRS{idVendor}=="04f9", ENV{libsane_matched}="yes"

我读完后注释掉了第二行,Zvlwab 的第二条评论,他指出上面这一行是不需要的,并且它与 ia32-libs 冲突。

然后,我输入以下命令,确保在设备名称两边加上撇号

scanimage --test -d 'brother3:net1;dev0'

不再出现该问题Invalid argument,MFC-7840W 上的网络扫描现在可以正常工作!

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