连接到网络打印机时，如果您看到消息Windows 无法连接到打印机，操作失败，错误为 0x00000bcb(Windows cannot connect to the printer, Operation failed with error 0x00000bcb)；以下是解决此问题的一些建议。无论您为联网计算机使用的打印机类型如何，都可能出现此错误消息。
网络打印机(Network Printer)错误 0x00000bcb – 无法连接到打印机
要修复网络打印机错误 0x00000bcb，请遵循以下建议：
- 运行打印机疑难解答
- 重新启动打印后台处理程序
- 检查打印机驱动程序
- 添加本地打印机
- 更改 LAN Manager(Change LAN Manager)身份验证级别
要了解有关这些步骤的更多信息，请继续阅读。
1]运行打印机疑难解答
Windows 10 附带了许多内置的疑难解答程序来解决此类常见问题。如果您不知道，您可以 从Windows 设置(Windows Settings)面板中查找并 运行 Windows 10 中的疑难解答程序。因此(Therefore)，按 Win+I 打开Windows 设置(Windows Settings)并转到 Update & Security > Troubleshoot > Additional troubleshooters。
在这里您可以找到 打印机疑难解答(Printer troubleshooter)。选择它并单击 运行疑难解答(Run the troubleshooter) 按钮。
然后，它会根据问题的原因显示各种选项。按照屏幕上的说明解决问题。
但是，如果运行打印机(Printer)疑难解答程序不能解决您的网络打印机问题，您还可以执行其他操作。
2]重新启动打印后台处理程序
Print Spooler是一项后台服务，需要运行以建立打印机和计算机之间的连接。如前所述，有时它可能会由于内部冲突而停止运行，从而导致问题。如果出现这种情况，重新启动Print Spooler服务将解决问题。
为此，请在任务栏(Taskbar)搜索框中搜索“服务”，然后单击单个结果以在您的计算机上打开服务。之后，搜索 Print Spooler 服务并双击它。
如果服务(Service)状态显示为 Running，请单击 Stop 按钮并通过单击 Start 按钮重新启动它。
但是，如果它已经被禁用，单击“ 开始(Start)” 按钮就可以完成这项工作。接下来，单击 确定 (OK )按钮，重新启动计算机，然后检查问题是否仍然存在。
3]检查打印机驱动程序
每个制造商都提供驱动程序来建立您的系统和打印机之间的连接——无论您将其用作离线打印机还是网络打印机。如果您有全新的Windows 10安装，则应安装打印机提供的驱动程序。如果找不到驱动程序介质，可以从打印机制造商的官方网站下载。(download it from the official website)
4]添加本地打印机
当您的系统未自动检测到打印机时，在本地添加打印机可能会解决问题。为此，您可以使用“ 设备和打印机(Devices and Printers) ”面板的帮助，其中存储了所有连接设备的信息。要打开此窗口，请打开控制面板(Control Panel)并单击 设备和打印机(Devices and Printers) 选项。如果您找不到此选项，请确保将 视图 (View )设置为 大图标(Large icons)。
打开“ 设备和打印机(Devices and Printers)” 窗口后，单击 顶部菜单栏中可见的“添加打印机”选项。(Add a printer)
它会打开一个窗口并搜索可用的打印机。不要等待完成，而是单击 未列出我想要的打印机 (The printer that I want isn’t listed )选项。
接下来，选择 使用手动设置添加本地打印机或网络打印机(Add a local printer or network printer with manual settings) 选项，然后单击 下一步 (Next )按钮。
现在，选择 Create a new port 选项 > 选择 Local Port，然后单击 Next 按钮。输入您的端口名称，然后单击“ 确定 (OK )”按钮。接下来，它会要求您安装打印机驱动程序。执行此操作，然后单击“ 下一步” (Next )按钮。
完成后，您将可以毫无问题地使用打印机。
相关(Related)：网络打印机错误0x00000002,0x0000007a, 0x00004005, 0x00000057, 0x00000006。
5]更改LAN Manager(Change LAN Manager)身份验证级别
有两种方法可以更改Windows 10计算机上的 LAN Manager 身份验证级别(change the LAN Manager authentication level)- 使用本地组策略编辑器(Local Group Policy Editor)和注册表编辑器(Registry Editor)。如果您使用的是Windows 10家庭版(Home Edition)，则必须遵循REGEDIT方法，因为GPEDIT在您的 PC 上不可用。
使用本地组策略编辑器：
首先，按 Win+R，键入gpedit.msc，然后按 Enter 按钮打开本地组策略编辑器(Local Group Policy Editor)。然后，导航到以下路径-
Computer Configuration > Windows Settings > Security Settings > Local Policies > Security Options
在这里您可以找到一个名为 Network security: LAN Manager authentication level的策略。双击它并选择 发送 LM 和 NTLM - 如果协商 选项，则使用 NTLMv2 会话安全。(Send LM & NTLM – use NTLMv2 session security if negotiated)
单击 确定 (OK )按钮，重新启动计算机，然后检查它是否解决了问题。
使用注册表编辑器：
按 Win+R，键入regedit，按 Enter 按钮，选择 Yes 按钮以在您的计算机上打开注册表编辑器。(Registry Editor)之后，导航到以下路径-
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Lsa
右键单击 Lsa > New > DWORD (32-bit) Value，并将其命名为 LmCompatibilityLevel。
双击它以将值(Value)数据设置为 1。
单击 确定 (OK )按钮以保存更改。之后，关闭注册表编辑器(Registry Editor)，然后重新启动计算机。
就这样！希望(Hope)这些解决方案可以帮助您修复 Windows 10 上的网络打印机错误 0x00000bcb。
相关：(Related: )Windows 无法连接到打印机，错误 0x0000052e。(Windows cannot connect to the printer, Error 0x0000052e.)
Fix Network Printer error 0x00000bcb - Cannot connect to printer
While connecting to a network printer, if you see message Windows cannot connect to the printer, Operation failed with error 0x00000bcb; here are some suggestions to troubleshoot this issue. This error message may appear irrespective of the type of printer you have for your networked computers.
Network Printer error 0x00000bcb – Cannot connect to printer
To fix network printer error 0x00000bcb, follow these suggestions:
- Run Printer troubleshooter
- Restart Print Spooler
- Check Printer drivers
- Add a local printer
- Change LAN Manager authentication level
To know more about these steps, keep reading.
1] Run Printer troubleshooter
Windows 10 comes with numerous in-built troubleshooters to fix common problems like this one. You can find and run troubleshooters in Windows 10 from the Windows Settings panel in case you do not know. Therefore, press Win+I to open the Windows Settings and go to Update & Security > Troubleshoot > Additional troubleshooters.
Here you can find the Printer troubleshooter. Select it and click on the Run the troubleshooter button.
Then, it shows various options according to the cause of your problem. Follow the on-screen instructions to fix the issue.
However, if running the Printer troubleshooter doesn’t solve your network printer issue, there is something more you can follow.
2] Restart Print Spooler
Print Spooler is a background service, which needs to be running to establish the connection between your printer and computer. There could be times when it might stop running due to internal conflicts, causing the issue, as mentioned earlier. If that situation arises, restarting the Print Spooler service would fix the problem.
To do that, search for “services” in the Taskbar search box, and click on the individual result to open Services on your computer. Following that, search for Print Spooler service and double-click on it.
If the Service status is showing as Running, click the Stop button and restart it by clicking the Start button.
However, if it is already disabled, clicking the Start button would do the job. Next, click the OK button, restart your computer, and check if the problem still remains or not.
3] Check printer drivers
Every manufacturer provides drivers to build the connection between your system and the printer – whether you use it as an offline or network printer. If you have fresh Windows 10 installation, you should install the drivers as given with the printer. In case you cannot find the driver media, you can download it from the official website of your printer manufacturer.
4] Add a local printer
Adding your printer locally might fix the issue when your system is not detecting it automatically. To do so, you can take the Devices and Printers panel’s help, which stores all the connected devices’ information. To open this window, open Control Panel and click on the Devices and Printers option. In case you cannot find this option, make sure the View is set as Large icons.
Once the Devices and Printers window is opened, click the Add a printer option visible in the top menu bar.
It opens up a window and searches for available printers. Don’t wait for the completion and instead click on The printer that I want isn’t listed option.
Next, choose the Add a local printer or network printer with manual settings option and click the Next button.
Now, choose the Create a new port option > select Local Port, and click the Next button. Enter your port name and click the OK button. Next, it asks you to install the printer drivers. Do it, and click the Next button.
Once done, you will be able to use your printer without any problem.
Related: Network Printer errors 0x00000002,0x0000007a, 0x00004005, 0x00000057, 0x00000006.
5] Change LAN Manager authentication level
There are two ways to change the LAN Manager authentication level on a Windows 10 computer – using the Local Group Policy Editor and the Registry Editor. If you are using Windows 10 Home Edition, you must follow the REGEDIT method, as GPEDIT is not available on your PC.
Using Local Group Policy Editor:
At first, press Win+R, type gpedit.msc, and hit the Enter button to open the Local Group Policy Editor. Then, navigate to the following path-
Computer Configuration > Windows Settings > Security Settings > Local Policies > Security Options
Here you can find a policy called Network security: LAN Manager authentication level. Double-click on it and select Send LM & NTLM – use NTLMv2 session security if negotiated option.
Click the OK button, restart your computer, and check if it solves the issue or not.
Using Registry Editor:
Press Win+R, type regedit, press the Enter button, select the Yes button to open Registry Editor on your computer. After that, navigate to the following path-
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Lsa
Right-click on Lsa > New > DWORD (32-bit) Value, and name it as LmCompatibilityLevel.
Double-click on it to set the Value data as 1.
Click the OK button to save the change. After that, close the Registry Editor, and restart your computer.
That’s all! Hope these solutions helped you to fix network printer error 0x00000bcb on Windows 10.
Related: Windows cannot connect to the printer, Error 0x0000052e.
