MFC-6490CW 常见问题解答与故障排除 MFC-6490CW 不是您的产品? 搜索结果排序: 更新日期 热门程度 3 结果 1. 2014-12-15 One or more of my colors are not printing (blank). What can I do? 2. 2011-05-24 Why are the faxes I send always received with a black vertical line down the page? 3. 2009-04-24 When I print, the pages are smudged with ink. What should I do? 中文 传真 常见问题解答与故障排除