https://h30471.www3.hp.com/t5/da-yin-ji-shi-yong-xiang-guan-wen-ti/HP-LaserJet-200-color-M251yu-dian-nao-lian-jie-wen-ti/m-p/742520#M184127 <P>进入设备管理器，看下usb的电源管理，是不是设置不对，你这个现象有点像开机后，端口没打开的问题。被修改或者人为关闭了</P> Wed, 27 May 2015 09:14:31 GMT elvis 2015-05-27T09:14:31Z https://h30471.www3.hp.com/t5/da-yin-ji-shi-yong-xiang-guan-wen-ti/HP-LaserJet-200-color-M251yu-dian-nao-lian-jie-wen-ti/m-p/742517#M184126 <P>您好，我在打印机使用过程中遇到以下情况，请帮忙解决一下，谢谢：</P><P>1.打印机型号：HP LaserJet 200 color M251</P><P>2.驱动安装操作：打印机已按驱动安装要求，先安装好.net3.5，正确安装驱动后可正常使用</P><P>3.故障现像：电脑断电关机后，重新开机，发现不能打印，查看“打印机和传真机”发现打印机状态为“脱机”</P><P>4.暂时处理方法：点击“我的电脑”内HP的虚拟光驱安装驱动到检测打印机连接这一步，打印机才能连接成功，此时可关闭打印机安装窗口方可正常使用。</P> Wed, 27 May 2015 08:00:05 GMT https://h30471.www3.hp.com/t5/da-yin-ji-shi-yong-xiang-guan-wen-ti/HP-LaserJet-200-color-M251yu-dian-nao-lian-jie-wen-ti/m-p/742517#M184126 顺德头盔男 2015-05-27T08:00:05Z https://h30471.www3.hp.com/t5/da-yin-ji-shi-yong-xiang-guan-wen-ti/HP-LaserJet-200-color-M251yu-dian-nao-lian-jie-wen-ti/m-p/742520#M184127 <P>进入设备管理器，看下usb的电源管理，是不是设置不对，你这个现象有点像开机后，端口没打开的问题。被修改或者人为关闭了</P> Wed, 27 May 2015 09:14:31 GMT https://h30471.www3.hp.com/t5/da-yin-ji-shi-yong-xiang-guan-wen-ti/HP-LaserJet-200-color-M251yu-dian-nao-lian-jie-wen-ti/m-p/742520#M184127 elvis 2015-05-27T09:14:31Z https://h30471.www3.hp.com/t5/da-yin-ji-shi-yong-xiang-guan-wen-ti/HP-LaserJet-200-color-M251yu-dian-nao-lian-jie-wen-ti/m-p/742522#M184128 <P>您好，感谢你的回复，可以说一下具体操作吗？</P> Wed, 27 May 2015 09:19:44 GMT https://h30471.www3.hp.com/t5/da-yin-ji-shi-yong-xiang-guan-wen-ti/HP-LaserJet-200-color-M251yu-dian-nao-lian-jie-wen-ti/m-p/742522#M184128 顺德头盔男 2015-05-27T09:19:44Z https://h30471.www3.hp.com/t5/da-yin-ji-shi-yong-xiang-guan-wen-ti/HP-LaserJet-200-color-M251yu-dian-nao-lian-jie-wen-ti/m-p/742537#M184138 <P>打印的端口是否有更换?</P> Wed, 27 May 2015 14:08:33 GMT https://h30471.www3.hp.com/t5/da-yin-ji-shi-yong-xiang-guan-wen-ti/HP-LaserJet-200-color-M251yu-dian-nao-lian-jie-wen-ti/m-p/742537#M184138 Lindj 2015-05-27T14:08:33Z https://h30471.www3.hp.com/t5/da-yin-ji-shi-yong-xiang-guan-wen-ti/HP-LaserJet-200-color-M251yu-dian-nao-lian-jie-wen-ti/m-p/742601#M184151 <P>USB端口更新是指换一个接口还是做其它操作呢？</P><P>&nbsp;</P> Thu, 28 May 2015 01:21:46 GMT https://h30471.www3.hp.com/t5/da-yin-ji-shi-yong-xiang-guan-wen-ti/HP-LaserJet-200-color-M251yu-dian-nao-lian-jie-wen-ti/m-p/742601#M184151 顺德头盔男 2015-05-28T01:21:46Z https://h30471.www3.hp.com/t5/da-yin-ji-shi-yong-xiang-guan-wen-ti/HP-LaserJet-200-color-M251yu-dian-nao-lian-jie-wen-ti/m-p/742652#M184161 <P>在打印机属性中的端口</P> Thu, 28 May 2015 15:54:38 GMT https://h30471.www3.hp.com/t5/da-yin-ji-shi-yong-xiang-guan-wen-ti/HP-LaserJet-200-color-M251yu-dian-nao-lian-jie-wen-ti/m-p/742652#M184161 Lindj 2015-05-28T15:54:38Z