Sintomi
针对 USB 连接时睡眠问题的故障排除 按照下面的步骤进行操作:
打开“开始”菜单。
选择或搜索“运行”。
打开“运行”。
键入 compmgmt.msc,然后选择“确定”。
选择“设备管理器”。
单击以展开“通用串行总线控制器”部分。
右键单击顶部列出的“通用 USB 集线器”。
单击“属性”。
单击“电源管理”选项卡。
取消选中“允许计算机关闭此设备以节约电源”选项旁边的复选框。
对所有“通用 USB 集线器”和“USB 根集线器”设备重复步骤 7-10。
如果这未解决问题,请与戴尔技术支持 联系
针对网络连接时睡眠问题的故障排除
通过网络连接的打印机所出现的睡眠问题是由打印机丢失其 DHCP 租约所致。当打印机进入睡眠状态时,它将停止与网络的通信。这将导致 DHCP 服务器释放打印机使用的 IP。在该打印机被唤醒之前,它将无法续订其 DHCP 租约(由于打印机不再能够与网络进行通信,因此必须手动执行此操作)。
要解决此问题,请在 DHCP 服务器或路由器上设置打印机的 DHCP 保留。为此,需要将打印机设置为 DHCP 模式以进行地址分配。在打印机通过 DHCP 获取 IP 后,请访问任何设备管理 DHCP 地址分配以创建租约。如果为其打印机使用静态 IP,您可以在租约就位后将静态 IP 重置为与 DHCP 保留相同的地址(但这不是必需的)。
如果这未解决问题,请与戴尔技术支持 联系。
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