MFC-6490CW 常見問題&故障排除 MFC-6490CW 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