MFC-J2720 常見問題&故障排除 MFC-J2720 不是您的產品嗎? 依…排序 更新日期 使用率 3 結果 1. 16/11/2016 My machine does regular cleaning cycles in the night. How can I correct this? 2. 29/01/2015 Improve poor print quality. 3. 29/05/2013 Clean the Scanner to improve the copy or fax quality. 中文 清理 常見問題&故障排除