https://h30471.www3.hp.com/t5/da-yin-ji-shi-yong-xiang-guan-wen-ti/7720da-yinA4zheng-chang-da-yinA3tu-chu-xian-ju-chi-yan-se-hui-du/m-p/1278275#M285773 <P><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="11.PNG" style="width: 611px;"><img src="https://h30471.www3.hp.com/t5/image/serverpage/image-id/103178iA0680D3FF29C1B2C/image-size/large?v=v2&amp;px=999" role="button" title="11.PNG" alt="11.PNG" /></span></P> Fri, 01 Mar 2024 02:41:20 GMT 强盼盼 2024-03-01T02:41:20Z https://h30471.www3.hp.com/t5/da-yin-ji-shi-yong-xiang-guan-wen-ti/7720da-yinA4zheng-chang-da-yinA3tu-chu-xian-ju-chi-yan-se-hui-du/m-p/1278264#M285769 <P>打印机打印A4正常，但是打印A3的时候就会出现颜色灰度（几乎是黑白），图形和文字出现锯齿状，换个文件打印也是一样的。但是通过其他电脑打印又显示正常。</P> Fri, 01 Mar 2024 02:01:07 GMT https://h30471.www3.hp.com/t5/da-yin-ji-shi-yong-xiang-guan-wen-ti/7720da-yinA4zheng-chang-da-yinA3tu-chu-xian-ju-chi-yan-se-hui-du/m-p/1278264#M285769 强盼盼 2024-03-01T02:01:07Z https://h30471.www3.hp.com/t5/da-yin-ji-shi-yong-xiang-guan-wen-ti/7720da-yinA4zheng-chang-da-yinA3tu-chu-xian-ju-chi-yan-se-hui-du/m-p/1278267#M285771 <P>您好</P><P>请在电脑上打开控制面板--设备和打印机--找到打印机图标（7720）</P><P>右击它--打印机属性--端口。</P><P>再找到前面带√号的端口，发图片给我，以便确认问题，谢谢。</P> Fri, 01 Mar 2024 02:29:17 GMT https://h30471.www3.hp.com/t5/da-yin-ji-shi-yong-xiang-guan-wen-ti/7720da-yinA4zheng-chang-da-yinA3tu-chu-xian-ju-chi-yan-se-hui-du/m-p/1278267#M285771 双鱼座鲨鱼 2024-03-01T02:29:17Z https://h30471.www3.hp.com/t5/da-yin-ji-shi-yong-xiang-guan-wen-ti/7720da-yinA4zheng-chang-da-yinA3tu-chu-xian-ju-chi-yan-se-hui-du/m-p/1278275#M285773 <P><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="11.PNG" style="width: 611px;"><img src="https://h30471.www3.hp.com/t5/image/serverpage/image-id/103178iA0680D3FF29C1B2C/image-size/large?v=v2&amp;px=999" role="button" title="11.PNG" alt="11.PNG" /></span></P> Fri, 01 Mar 2024 02:41:20 GMT https://h30471.www3.hp.com/t5/da-yin-ji-shi-yong-xiang-guan-wen-ti/7720da-yinA4zheng-chang-da-yinA3tu-chu-xian-ju-chi-yan-se-hui-du/m-p/1278275#M285773 强盼盼 2024-03-01T02:41:20Z https://h30471.www3.hp.com/t5/da-yin-ji-shi-yong-xiang-guan-wen-ti/7720da-yinA4zheng-chang-da-yinA3tu-chu-xian-ju-chi-yan-se-hui-du/m-p/1278866#M285930 <P>您好</P><P>感谢配合</P><P>感谢点击：添加端口--standard tcp/ip--输入打印机ip地址，下一步，下一步，直到完成。</P><P><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="_0-1709540347259.png" style="width: 400px;"><img src="https://h30471.www3.hp.com/t5/image/serverpage/image-id/103334iA57187797035AE6D/image-size/medium?v=v2&amp;px=400" role="button" title="_0-1709540347259.png" alt="_0-1709540347259.png" /></span></P><P>然后重新测试打印效果。</P><P>如果问题依旧，建议手动添加7740驱动后，重新测试打印。</P><P>驱动下载连接：</P><P><A href="https://ftp.hp.com/pub/softlib/software13/printers/OJ7740/Basic_Webpack_x64-40.16.1234-OJ7740_Basicx64_Webpack.exe" target="_blank">https://ftp.hp.com/pub/softlib/software13/printers/OJ7740/Basic_Webpack_x64-40.16.1234-OJ7740_Basicx64_Webpack.exe</A></P><P>谢谢</P><P>&nbsp;</P> Mon, 04 Mar 2024 08:22:43 GMT https://h30471.www3.hp.com/t5/da-yin-ji-shi-yong-xiang-guan-wen-ti/7720da-yinA4zheng-chang-da-yinA3tu-chu-xian-ju-chi-yan-se-hui-du/m-p/1278866#M285930 双鱼座鲨鱼 2024-03-04T08:22:43Z https://h30471.www3.hp.com/t5/da-yin-ji-shi-yong-xiang-guan-wen-ti/7720da-yinA4zheng-chang-da-yinA3tu-chu-xian-ju-chi-yan-se-hui-du/m-p/1290780#M289753 <P>7720打印A4正常，打印A3图出现无彩色</P> Thu, 16 May 2024 08:46:47 GMT https://h30471.www3.hp.com/t5/da-yin-ji-shi-yong-xiang-guan-wen-ti/7720da-yinA4zheng-chang-da-yinA3tu-chu-xian-ju-chi-yan-se-hui-du/m-p/1290780#M289753 liu771860 2024-05-16T08:46:47Z https://h30471.www3.hp.com/t5/da-yin-ji-shi-yong-xiang-guan-wen-ti/7720da-yinA4zheng-chang-da-yinA3tu-chu-xian-ju-chi-yan-se-hui-du/m-p/1290950#M289798 <P>您好</P><P>请先确认打印预览是否正常。</P><P>方便的话，可以发图片给我，以便确认问题，谢谢。</P> Fri, 17 May 2024 09:44:06 GMT https://h30471.www3.hp.com/t5/da-yin-ji-shi-yong-xiang-guan-wen-ti/7720da-yinA4zheng-chang-da-yinA3tu-chu-xian-ju-chi-yan-se-hui-du/m-p/1290950#M289798 双鱼座鲨鱼 2024-05-17T09:44:06Z https://h30471.www3.hp.com/t5/da-yin-ji-shi-yong-xiang-guan-wen-ti/7720da-yinA4zheng-chang-da-yinA3tu-chu-xian-ju-chi-yan-se-hui-du/m-p/1359608#M310210 <P><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="A3图纸1.jpg" style="width: 800px;"><img src="https://h30471.www3.hp.com/t5/image/serverpage/image-id/126158iE3F4979CDD7283D9/image-size/large?v=v2&amp;px=999" role="button" title="A3图纸1.jpg" alt="A3图纸1.jpg" /></span></P><P>&nbsp;</P><P>按照你的操作没有解决问题</P> Tue, 09 Sep 2025 00:29:48 GMT https://h30471.www3.hp.com/t5/da-yin-ji-shi-yong-xiang-guan-wen-ti/7720da-yinA4zheng-chang-da-yinA3tu-chu-xian-ju-chi-yan-se-hui-du/m-p/1359608#M310210 Manito 2025-09-09T00:29:48Z https://h30471.www3.hp.com/t5/da-yin-ji-shi-yong-xiang-guan-wen-ti/7720da-yinA4zheng-chang-da-yinA3tu-chu-xian-ju-chi-yan-se-hui-du/m-p/1359623#M310214 <P>您好</P> <P>1 请下载并解压7730完整版驱动<BR />2 在电脑上打开 设备和打印机-添加打印机-我需要的打印机未被列出-手动添加-选择正确的端口-下一步-从磁盘安装-浏览-找到解压好的文件夹（选择任意一个*.inf文件）安装即可。</P> <P><A href="https://ftp.hp.com/pub/softlib/software13/printers/OJPRO7730/Full_Webpack-44.11.2778-OJ7730_Full_Webpack.exe" target="_blank">https://ftp.hp.com/pub/softlib/software13/printers/OJPRO7730/Full_Webpack-44.11.2778-OJ7730_Full_Webpack.exe</A></P> <P>然后用7730驱动测试打印效果，谢谢。</P> Tue, 09 Sep 2025 01:29:06 GMT https://h30471.www3.hp.com/t5/da-yin-ji-shi-yong-xiang-guan-wen-ti/7720da-yinA4zheng-chang-da-yinA3tu-chu-xian-ju-chi-yan-se-hui-du/m-p/1359623#M310214 双鱼座鲨鱼 2025-09-09T01:29:06Z https://h30471.www3.hp.com/t5/da-yin-ji-shi-yong-xiang-guan-wen-ti/7720da-yinA4zheng-chang-da-yinA3tu-chu-xian-ju-chi-yan-se-hui-du/m-p/1359685#M310235 <P>驱动再哪里下载？</P> Tue, 09 Sep 2025 06:22:43 GMT https://h30471.www3.hp.com/t5/da-yin-ji-shi-yong-xiang-guan-wen-ti/7720da-yinA4zheng-chang-da-yinA3tu-chu-xian-ju-chi-yan-se-hui-du/m-p/1359685#M310235 Manito 2025-09-09T06:22:43Z https://h30471.www3.hp.com/t5/da-yin-ji-shi-yong-xiang-guan-wen-ti/7720da-yinA4zheng-chang-da-yinA3tu-chu-xian-ju-chi-yan-se-hui-du/m-p/1359687#M310236 <P><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="驱动.jpg" style="width: 800px;"><img src="https://h30471.www3.hp.com/t5/image/serverpage/image-id/126179iAC83313A20CDA9F7/image-size/large?v=v2&amp;px=999" role="button" title="驱动.jpg" alt="驱动.jpg" /></span></P><P>下载哪个</P> Tue, 09 Sep 2025 06:28:05 GMT https://h30471.www3.hp.com/t5/da-yin-ji-shi-yong-xiang-guan-wen-ti/7720da-yinA4zheng-chang-da-yinA3tu-chu-xian-ju-chi-yan-se-hui-du/m-p/1359687#M310236 Manito 2025-09-09T06:28:05Z https://h30471.www3.hp.com/t5/da-yin-ji-shi-yong-xiang-guan-wen-ti/7720da-yinA4zheng-chang-da-yinA3tu-chu-xian-ju-chi-yan-se-hui-du/m-p/1359695#M310237 <P><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="_0-1757404236572.png" style="width: 800px;"><img src="https://h30471.www3.hp.com/t5/image/serverpage/image-id/126182i222B5389CD8D4689/image-size/large?v=v2&amp;px=999" role="button" title="_0-1757404236572.png" alt="_0-1757404236572.png" /></span></P> <P>&nbsp;</P> Tue, 09 Sep 2025 07:50:47 GMT https://h30471.www3.hp.com/t5/da-yin-ji-shi-yong-xiang-guan-wen-ti/7720da-yinA4zheng-chang-da-yinA3tu-chu-xian-ju-chi-yan-se-hui-du/m-p/1359695#M310237 双鱼座鲨鱼 2025-09-09T07:50:47Z