MFC-B7720DN 常见问题解答与故障排除 MFC-B7720DN 不是您的产品? 搜索结果排序: 更新日期 热门程度 1 结果 1. 2018-11-27 After the selected tray is out of paper, the Brother Machine prints by different paper size and paper types from another tray. 中文 产品设置 常见问题解答与故障排除