在使用PR-8600过程中，经常机器会报三个类似的错误，名字都是机器错误，但具体内容不一样，如下：
1、E415D：mechanical error.
During the plate loading,double plate loading is detected.
2、E415E：mechanical error.
The loaded plate is floating from the drum is detected during drum spining.
3、E5131：mechanical error.
Plate position is not appropriate when alignment is performed.
请问该怎么解决啊？？严重影响了生产，也就严重影响了客户心情，这会导致好评下降的！！