https://h30471.www3.hp.com/t5/da-yin-ji-shi-yong-xiang-guan-wen-ti/HP-OfficeJet-Pro-7740wu-fa-cai-da/m-p/1201117#M265801 <P>颜色也非常怪，打印exl文档有色块的地方会非常深，总体是黑白</P> Wed, 23 Nov 2022 06:38:32 GMT 社区制造机 2022-11-23T06:38:32Z https://h30471.www3.hp.com/t5/da-yin-ji-shi-yong-xiang-guan-wen-ti/HP-OfficeJet-Pro-7740wu-fa-cai-da/m-p/1201117#M265801 <P>颜色也非常怪，打印exl文档有色块的地方会非常深，总体是黑白</P> Wed, 23 Nov 2022 06:38:32 GMT https://h30471.www3.hp.com/t5/da-yin-ji-shi-yong-xiang-guan-wen-ti/HP-OfficeJet-Pro-7740wu-fa-cai-da/m-p/1201117#M265801 社区制造机 2022-11-23T06:38:32Z https://h30471.www3.hp.com/t5/da-yin-ji-shi-yong-xiang-guan-wen-ti/HP-OfficeJet-Pro-7740wu-fa-cai-da/m-p/1201133#M265805 <P>您好</P><P>优先确认墨水量是否都充足,充足的情况下做清洁,然后打印出来的质量报告查看是否有缺色的情况.</P><P>如果多次清洁,依旧会有缺色,或者是效果差,确认墨盒,如果是非hp墨盒,建议优先更换墨盒来测试.</P><P>若更换墨盒后依旧是同样的效果,建议联系维修中心检测维修打印头.</P> Wed, 23 Nov 2022 08:08:03 GMT https://h30471.www3.hp.com/t5/da-yin-ji-shi-yong-xiang-guan-wen-ti/HP-OfficeJet-Pro-7740wu-fa-cai-da/m-p/1201133#M265805 小鱼哥哥 2022-11-23T08:08:03Z