https://h30471.www3.hp.com/t5/da-yin-ji-shi-yong-xiang-guan-wen-ti/hui-fu-hui-pu-hp-7740da-yin-ji-da-yin-chu-xian-bai-xian/m-p/1367653#M312561 <P>您好</P> <P>如果校准和清洁无效，建议联系当地维修中心协助处理。</P> <P>这是维修中心查询链接：<A href="https://support.hp.com/cn-zh/document/ish_10961443-11496959-16" target="_blank">https://support.hp.com/cn-zh/document/ish_10961443-11496959-16</A><BR />给您带来不带，敬请谅解。</P> Thu, 06 Nov 2025 05:27:45 GMT 双鱼座鲨鱼 2025-11-06T05:27:45Z https://h30471.www3.hp.com/t5/da-yin-ji-shi-yong-xiang-guan-wen-ti/hui-fu-hui-pu-hp-7740da-yin-ji-da-yin-chu-xian-bai-xian/m-p/1367639#M312555 <P>两台打印机出现同样的问题，打印有白道，码盘清理了（检测码盘传感器换了）打印头在别的机器上就正常，也用别的喷头测试了，问题依旧，光栅小车也换了，问题依旧</P> Thu, 06 Nov 2025 03:56:48 GMT https://h30471.www3.hp.com/t5/da-yin-ji-shi-yong-xiang-guan-wen-ti/hui-fu-hui-pu-hp-7740da-yin-ji-da-yin-chu-xian-bai-xian/m-p/1367639#M312555 小人物先生 2025-11-06T03:56:48Z https://h30471.www3.hp.com/t5/da-yin-ji-shi-yong-xiang-guan-wen-ti/hui-fu-hui-pu-hp-7740da-yin-ji-da-yin-chu-xian-bai-xian/m-p/1367640#M312556 <P>您好</P> <P>请不要重复提问，谢谢。</P> <P><A href="https://h30471.www3.hp.com/t5/da-yin-ji-shi-yong-xiang-guan-wen-ti/hui-pu-hp-7740da-yin-ji-da-yin-chu-xian-bai-xian-ru-he-xiao-zhun-huan-xing/td-p/843681" target="_blank">https://h30471.www3.hp.com/t5/da-yin-ji-shi-yong-xiang-guan-wen-ti/hui-pu-hp-7740da-yin-ji-da-yin-chu-xian-bai-xian-ru-he-xiao-zhun-huan-xing/td-p/843681</A></P> <P>&nbsp;</P> Thu, 06 Nov 2025 03:58:26 GMT https://h30471.www3.hp.com/t5/da-yin-ji-shi-yong-xiang-guan-wen-ti/hui-fu-hui-pu-hp-7740da-yin-ji-da-yin-chu-xian-bai-xian/m-p/1367640#M312556 双鱼座鲨鱼 2025-11-06T03:58:26Z https://h30471.www3.hp.com/t5/da-yin-ji-shi-yong-xiang-guan-wen-ti/hui-fu-hui-pu-hp-7740da-yin-ji-da-yin-chu-xian-bai-xian/m-p/1367642#M312558 <P>我看到了哪个2017年的帖子，但是最后他好像也没解决，校准是最早开始就校准了 ，打印测试页看不到任何问题，只有打印图片才能看到</P> Thu, 06 Nov 2025 04:00:35 GMT https://h30471.www3.hp.com/t5/da-yin-ji-shi-yong-xiang-guan-wen-ti/hui-fu-hui-pu-hp-7740da-yin-ji-da-yin-chu-xian-bai-xian/m-p/1367642#M312558 小人物先生 2025-11-06T04:00:35Z https://h30471.www3.hp.com/t5/da-yin-ji-shi-yong-xiang-guan-wen-ti/hui-fu-hui-pu-hp-7740da-yin-ji-da-yin-chu-xian-bai-xian/m-p/1367653#M312561 <P>您好</P> <P>如果校准和清洁无效，建议联系当地维修中心协助处理。</P> <P>这是维修中心查询链接：<A href="https://support.hp.com/cn-zh/document/ish_10961443-11496959-16" target="_blank">https://support.hp.com/cn-zh/document/ish_10961443-11496959-16</A><BR />给您带来不带，敬请谅解。</P> Thu, 06 Nov 2025 05:27:45 GMT https://h30471.www3.hp.com/t5/da-yin-ji-shi-yong-xiang-guan-wen-ti/hui-fu-hui-pu-hp-7740da-yin-ji-da-yin-chu-xian-bai-xian/m-p/1367653#M312561 双鱼座鲨鱼 2025-11-06T05:27:45Z