https://h30471.www3.hp.com/t5/da-yin-ji-shi-yong-xiang-guan-wen-ti/hui-pu-da-yin-ji-sheng-ji-gu-jian-he-qu-dong-hou-da-yin-shuang-mian-xu-shou-dong-fang-zhi/m-p/1370388#M313601 <P>您好</P> <P>请重新下载并安装：</P> <P><A href="https://ftp.hp.com/pub/softlib/software13/COL89536/lj-223854-2/Full_Webpack-48.6.4638-LJM404-M405_U_Full_Webpack.exe" target="_blank">https://ftp.hp.com/pub/softlib/software13/COL89536/lj-223854-2/Full_Webpack-48.6.4638-LJM404-M405_U_Full_Webpack.exe</A></P> <P>然后将新安装打印机设置为默认打印机。</P> <P>右击打印机图标--打印机属性--设备设置--可安装选项--双面单元改为已安装。</P> <P>然后再重新测试双面打印，谢谢。</P> Tue, 02 Dec 2025 13:48:11 GMT 双鱼座鲨鱼 2025-12-02T13:48:11Z https://h30471.www3.hp.com/t5/da-yin-ji-shi-yong-xiang-guan-wen-ti/hui-pu-da-yin-ji-sheng-ji-gu-jian-he-qu-dong-hou-da-yin-shuang-mian-xu-shou-dong-fang-zhi/m-p/1370376#M313599 <P>惠普打印机，升级固件和驱动后，打印双面，需手动放纸(不能自动调头，双面打印)。</P><P><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="0.jpg" style="width: 800px;"><img src="https://h30471.www3.hp.com/t5/image/serverpage/image-id/129349i145C9647510CFF7D/image-size/large?v=v2&amp;px=999" role="button" title="0.jpg" alt="0.jpg" /></span><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="1.jpg" style="width: 800px;"><img src="https://h30471.www3.hp.com/t5/image/serverpage/image-id/129351iF340929F033BED48/image-size/large?v=v2&amp;px=999" role="button" title="1.jpg" alt="1.jpg" /></span><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="3.jpg" style="width: 369px;"><img src="https://h30471.www3.hp.com/t5/image/serverpage/image-id/129350i5C4D599888060468/image-size/large?v=v2&amp;px=999" role="button" title="3.jpg" alt="3.jpg" /></span></P> Tue, 02 Dec 2025 09:49:44 GMT https://h30471.www3.hp.com/t5/da-yin-ji-shi-yong-xiang-guan-wen-ti/hui-pu-da-yin-ji-sheng-ji-gu-jian-he-qu-dong-hou-da-yin-shuang-mian-xu-shou-dong-fang-zhi/m-p/1370376#M313599 天涯为客 2025-12-02T09:49:44Z https://h30471.www3.hp.com/t5/da-yin-ji-shi-yong-xiang-guan-wen-ti/hui-pu-da-yin-ji-sheng-ji-gu-jian-he-qu-dong-hou-da-yin-shuang-mian-xu-shou-dong-fang-zhi/m-p/1370388#M313601 <P>您好</P> <P>请重新下载并安装：</P> <P><A href="https://ftp.hp.com/pub/softlib/software13/COL89536/lj-223854-2/Full_Webpack-48.6.4638-LJM404-M405_U_Full_Webpack.exe" target="_blank">https://ftp.hp.com/pub/softlib/software13/COL89536/lj-223854-2/Full_Webpack-48.6.4638-LJM404-M405_U_Full_Webpack.exe</A></P> <P>然后将新安装打印机设置为默认打印机。</P> <P>右击打印机图标--打印机属性--设备设置--可安装选项--双面单元改为已安装。</P> <P>然后再重新测试双面打印，谢谢。</P> Tue, 02 Dec 2025 13:48:11 GMT https://h30471.www3.hp.com/t5/da-yin-ji-shi-yong-xiang-guan-wen-ti/hui-pu-da-yin-ji-sheng-ji-gu-jian-he-qu-dong-hou-da-yin-shuang-mian-xu-shou-dong-fang-zhi/m-p/1370388#M313601 双鱼座鲨鱼 2025-12-02T13:48:11Z