最近我用的施乐4470总是定影定不好，打印一些表格类的文件经常出现黑线，打印照片黑色定不上不知道是怎么回事，求各位大神指点一下。[IMG]file:///C:/Users/Administrator/Desktop/%E5%BE%AE%E4%BF%A1%E5%9B%BE%E7%89%87_20190223101433.jpg[/IMG]
[IMG]file:///C:/Users/Administrator/Desktop/%E5%BE%AE%E4%BF%A1%E5%9B%BE%E7%89%87_20190223101442.jpg[/IMG]