https://h30471.www3.hp.com/t5/da-yin-ji-shi-yong-xiang-guan-wen-ti/M281/m-p/1239880#M274992 <P>关机断电，拔掉电源线和外接设备，静止至少30秒，然后接电开机试下。</P> <P>&nbsp;</P> <P>如果问题依旧，联系服务中心检测</P> <P>&nbsp;</P> <P>服务中心查询</P> <P><A href="https://support.hp.com/cn-zh/document/c04570895" target="_blank">https://support.hp.com/cn-zh/document/c04570895</A>&nbsp;</P> Sat, 24 Jun 2023 12:29:33 GMT 坏坏的笑 2023-06-24T12:29:33Z https://h30471.www3.hp.com/t5/da-yin-ji-shi-yong-xiang-guan-wen-ti/M281/m-p/1239826#M274986 <P>不能打印，报错50.4定影器故障该怎么解决啊</P> Sat, 24 Jun 2023 04:21:40 GMT https://h30471.www3.hp.com/t5/da-yin-ji-shi-yong-xiang-guan-wen-ti/M281/m-p/1239826#M274986 杰克888 2023-06-24T04:21:40Z https://h30471.www3.hp.com/t5/da-yin-ji-shi-yong-xiang-guan-wen-ti/M281/m-p/1239880#M274992 <P>关机断电，拔掉电源线和外接设备，静止至少30秒，然后接电开机试下。</P> <P>&nbsp;</P> <P>如果问题依旧，联系服务中心检测</P> <P>&nbsp;</P> <P>服务中心查询</P> <P><A href="https://support.hp.com/cn-zh/document/c04570895" target="_blank">https://support.hp.com/cn-zh/document/c04570895</A>&nbsp;</P> Sat, 24 Jun 2023 12:29:33 GMT https://h30471.www3.hp.com/t5/da-yin-ji-shi-yong-xiang-guan-wen-ti/M281/m-p/1239880#M274992 坏坏的笑 2023-06-24T12:29:33Z