MFC-290C 常見問題&故障排除 MFC-290C 不是您的產品嗎? 依…排序 更新日期 使用率 2 結果 1. 24.05.2011 Why are the faxes I send always received with a black vertical line down the page? 2. 24.04.2009 When I print, the pages are smudged with ink. What should I do? 中文 傳真 常見問題&故障排除