有用科技小编2026/07/01
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阅读11分钟手机或其他电脑提示"Windows 无法连接到打印机"、报错码 0x0000011b 或 0x00000bc4，多数是 Print Spooler 后台服务停止、打印队列任务卡死，或 2021 年后 Windows 安全更新触发的认证策略冲突，打印机硬件本身大多没有问题，不必急着送修或重装系统。
按以下 5 步由易到难逐项排查：启动 Print Spooler 并设为自动、清空 PRINTERS 目录卡死任务、注册表修复 0x0000011b、核对共享端防火墙配置、用「软领打印机驱动修复大师」一键智能检测修复。以下方法在 Windows 10/11 实测可用，修好即停，不必全部执行。
适用系统：Windows 10/11；最后更新：2026-06-22。
打印机共享连不上是什么情况
添加网络共享打印机时，系统弹出"Windows 无法连接到打印机""本地打印后台处理程序服务没有运行"，或连接过程直接弹出错误码 0x0000011b、0x00000bc4，这些属于同一类问题。原因可以归为几个方向：
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先判断报错码与系统版本——0x0000011b 几乎总是 2021 年后安全补丁所致，0x00000bc4 多指共享服务端 Spooler 异常或共享设置缺失。按这两个方向定位，能省去盲目重装驱动的时间。
方法一 检查并启动 Print Spooler 服务
打印机连接失败最常见的直接原因是 Print Spooler 后台服务停止运行。在 Windows 10/11 中，该服务停止后所有本地和网络打印功能都会中断，重新启动并设为"自动"可以解决"本地打印后台处理程序服务没有运行"类报错。
操作步骤
- 按
Win + R，输入services.msc，回车打开服务管理器。 - 在列表中找到"Print Spooler"，右键选择"属性"。
- 将"启动类型"改为"自动"，点"应用"。
- 点"启动"按钮，状态变为"正在运行"后点"确定"。
- 也可以在命令提示符（管理员）中运行
sc config spooler start=auto，再执行net start spooler。
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方法二 清理 PRINTERS 目录中的卡死任务
打印队列里存在卡死任务时，即使 Spooler 服务已在运行，新的连接请求也会被堵住。清空 C:\Windows\System32\spool\PRINTERS 目录下的所有文件，可以强制释放队列，适用于 Spooler 已启动但连接仍然失败的情况。
操作步骤
- 在命令提示符（管理员）中执行
net stop spooler，停止 Spooler 服务。 - 打开路径
C:\Windows\System32\spool\PRINTERS，删除其中所有文件（子文件夹保留不删）。 - 执行
net start spooler，重新启动服务。 - 再次尝试添加或连接共享打印机。
方法三 注册表修复 0x0000011b 认证错误
2021 年 10 月后，微软安全补丁 KB5005565 提升了打印机 RPC 认证级别，导致旧式打印机共享连接出现 0x0000011b 错误。在注册表中关闭强制加密即可恢复连接，适用于 Windows 10 21H1 及以上版本。
操作步骤
- 按
Win + R，输入regedit，回车打开注册表编辑器。 - 导航到
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Print。 - 在右侧空白处右键，选择"新建 > DWORD（32 位）值"，名称填
RpcAuthnLevelPrivacyEnabled。 - 双击该值，将数据改为
0，点"确定"。 - 重启电脑后重新连接打印机。
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方法四 核对共享端防火墙与网络配置
客户端能否连上共享打印机，取决于服务端（接打印机的那台电脑）配置是否正确。防火墙未放行、打印机未共享、SMB 协议被禁或来宾访问被限制，都会让客户端反复弹错，但问题根源在服务端，而非客户端驱动。
操作步骤
- 在服务端打开"设备和打印机"，右键目标打印机选"打印机属性"，进入"共享"标签页，勾选"共享这台打印机"并填写共享名。
- 确认服务端 Print Spooler 处于运行状态（参考方法一）。
- 打开"Windows Defender 防火墙"→"允许应用或功能通过防火墙"，勾选"文件和打印机共享"（专用和公用均勾）。
- 在客户端按
Win + R，输入\\服务端IP地址\打印机共享名（如\\192.168.1.100\HP_Laser）直接尝试连接。 - 若仍失败，检查两台电脑是否在同一局域网段，"高级共享设置"中的网络发现是否已打开。
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方法五 用「软领打印机驱动修复大师」一键智能检测修复
上述操作需要逐项手动排查，如果不确定是哪一层出了问题，「软领打印机驱动修复大师」的智能打印修复功能可以自动扫描打印机设置、队列状态、共享配置与注册表异常，把问题项一一列出，点"一键修复"批量处理，涵盖 SMB 协议异常、共享错误码 0x00000bc4、注册表错误等。打印机共享功能可以检测局域网共享环境，帮你把本机打印机共享给其他设备，也可以从客户端一侧连接已有的共享打印机，两端都能覆盖。
软领是知名国产软件品牌，20 年技术沉淀，服务千万用户，从官网 wyouhua.com 直接下载，安装无捆绑勾选项。如果遇到复杂情况，软件界面有客服按钮，点一下就能联系到真人客服，还有专业工程师远程协助解决问题。
常见问题
手机为什么无法连接到打印机，一直提示连接失败？
手机通过 Wi-Fi 打印需要打印机支持 Wi-Fi Direct、AirPrint 或云打印协议；若打印机只是 Windows 局域网共享打印机，手机通常无法直接连接，需要安装品牌专属 App（如佳能 PRINT、爱普生 iPrint）或借助支持 AirPrint 的路由器转发。
Windows 无法连接到打印机，错误码 0x0000011b 怎么解决？
该错误由 2021 年后的 Windows 安全补丁触发，在注册表 HKLM\SYSTEM\CurrentControlSet\Control\Print 下新建 DWORD 值 RpcAuthnLevelPrivacyEnabled 并设为 0，重启后即可恢复共享连接（参考方法三）。
Windows 无法连接到打印机，已删除指定的打印机怎么解决？
这通常意味着服务端的共享打印机已被删除或共享名已更改。在客户端删除旧的打印机记录，重新用 \\服务端IP\新共享名 添加即可；若持续失败，检查服务端 Spooler 服务是否正常运行。
打印机共享连不上，提示"本地打印后台处理程序服务没有运行"怎么办？
按 Win + R 输入 services.msc 打开服务管理器，找到"Print Spooler"，右键启动，并将启动类型改为"自动"，避免重启后再次停止（参考方法一）。
两台电脑同一网络，共享打印机还是连不上，怎么排查？
重点检查服务端防火墙是否已放行"文件和打印机共享"，"高级共享设置"中网络发现是否已打开。跨 VLAN 或不同路由器网段、来宾账户被禁用、SMB 1.0 被系统关闭也是常见隐患，需在服务端逐一确认。
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