The aliquation-wheel failure is the aliquation round wall passages, the aliquation of paper dust, dirt, clean in order to use the aliquation-wheel suction is too small to fit the size it.

• 呼气轮生效是呼气轮壁的小孔闭塞，把呼气轮上的纸灰、污物冲洗肮脏即可搁置，呼气轮吸风太小可不合调不小它的不斥力。