https://h30471.www3.hp.com/t5/da-yin-ji-shi-yong-xiang-guan-wen-ti/wo-deHP-OfficeJet-Pro-7740-series-da-yin-ji-geng-xin-le-gu-jian-hou-mo-he-bu-neng-yong-le/m-p/1301014#M292995 <P>您好</P><P>建议使用原装墨盒。</P><P>如果需要旧版本固件，建议联系当地维修中心。</P><P>给您带来不便，敬请谅解。</P> Mon, 22 Jul 2024 01:37:10 GMT 双鱼座鲨鱼 2024-07-22T01:37:10Z https://h30471.www3.hp.com/t5/da-yin-ji-shi-yong-xiang-guan-wen-ti/wo-deHP-OfficeJet-Pro-7740-series-da-yin-ji-geng-xin-le-gu-jian-hou-mo-he-bu-neng-yong-le/m-p/1300923#M292981 <P>现在显示非hp芯片。之前都是能用的，联网自动更新后不能用了。有没有办法退回到出厂版本的固件，这个打印机经常用的，很急，谢谢了</P> Sun, 21 Jul 2024 06:55:07 GMT https://h30471.www3.hp.com/t5/da-yin-ji-shi-yong-xiang-guan-wen-ti/wo-deHP-OfficeJet-Pro-7740-series-da-yin-ji-geng-xin-le-gu-jian-hou-mo-he-bu-neng-yong-le/m-p/1300923#M292981 Neo147 2024-07-21T06:55:07Z https://h30471.www3.hp.com/t5/da-yin-ji-shi-yong-xiang-guan-wen-ti/wo-deHP-OfficeJet-Pro-7740-series-da-yin-ji-geng-xin-le-gu-jian-hou-mo-he-bu-neng-yong-le/m-p/1301014#M292995 <P>您好</P><P>建议使用原装墨盒。</P><P>如果需要旧版本固件，建议联系当地维修中心。</P><P>给您带来不便，敬请谅解。</P> Mon, 22 Jul 2024 01:37:10 GMT https://h30471.www3.hp.com/t5/da-yin-ji-shi-yong-xiang-guan-wen-ti/wo-deHP-OfficeJet-Pro-7740-series-da-yin-ji-geng-xin-le-gu-jian-hou-mo-he-bu-neng-yong-le/m-p/1301014#M292995 双鱼座鲨鱼 2024-07-22T01:37:10Z https://h30471.www3.hp.com/t5/da-yin-ji-shi-yong-xiang-guan-wen-ti/wo-deHP-OfficeJet-Pro-7740-series-da-yin-ji-geng-xin-le-gu-jian-hou-mo-he-bu-neng-yong-le/m-p/1307965#M294860 <P>您好</P><P>请问您的打印机遇到什么问题了？</P><P>&nbsp;</P> Fri, 06 Sep 2024 08:27:47 GMT https://h30471.www3.hp.com/t5/da-yin-ji-shi-yong-xiang-guan-wen-ti/wo-deHP-OfficeJet-Pro-7740-series-da-yin-ji-geng-xin-le-gu-jian-hou-mo-he-bu-neng-yong-le/m-p/1307965#M294860 双鱼座鲨鱼 2024-09-06T08:27:47Z