https://h30471.www3.hp.com/t5/da-yin-ji-shi-yong-xiang-guan-wen-ti/HP-DeskJet-Ink-Advantage-Ultra-4720-4729-ru-he-hui-fu-chu-chang-she-zhi/m-p/1155317#M256841 <P>您好<BR />按住电源和无线键，打印机开机，3-5秒后，松手。</P><P>然后重新测试，谢谢</P> Wed, 06 Apr 2022 03:12:03 GMT 双鱼座鲨鱼 2022-04-06T03:12:03Z https://h30471.www3.hp.com/t5/da-yin-ji-shi-yong-xiang-guan-wen-ti/HP-DeskJet-Ink-Advantage-Ultra-4720-4729-ru-he-hui-fu-chu-chang-she-zhi/m-p/1155018#M256789 <P>忘记web服务登录密码，在打开墨盒仓，同时按住电源和无线网络键3 S以后，再进入，要求输入admin用户和密码，输入用户名:admin 密码:空后，还是无法登陆Web服务，报链接锁定。</P> Mon, 04 Apr 2022 03:49:15 GMT https://h30471.www3.hp.com/t5/da-yin-ji-shi-yong-xiang-guan-wen-ti/HP-DeskJet-Ink-Advantage-Ultra-4720-4729-ru-he-hui-fu-chu-chang-she-zhi/m-p/1155018#M256789 乔巴 2022-04-04T03:49:15Z https://h30471.www3.hp.com/t5/da-yin-ji-shi-yong-xiang-guan-wen-ti/HP-DeskJet-Ink-Advantage-Ultra-4720-4729-ru-he-hui-fu-chu-chang-she-zhi/m-p/1155317#M256841 <P>您好<BR />按住电源和无线键，打印机开机，3-5秒后，松手。</P><P>然后重新测试，谢谢</P> Wed, 06 Apr 2022 03:12:03 GMT https://h30471.www3.hp.com/t5/da-yin-ji-shi-yong-xiang-guan-wen-ti/HP-DeskJet-Ink-Advantage-Ultra-4720-4729-ru-he-hui-fu-chu-chang-she-zhi/m-p/1155317#M256841 双鱼座鲨鱼 2022-04-06T03:12:03Z