传感器主要用于检查纸张的宽度，传感器位置在墨车左下里（电脑自动关机）面（皮带轮方向为里（电脑自动关机）面），用手指使用餐巾纸深入到打印机墨车左面起擦，将墨水粘干净。

　　同时，打印机左面有一海绵，取下清洗干净再放进去．或者干脆就不再放进去，这样的处理方法原则上就不用拆卸打印机了。

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自己处理小问题！图解清洁喷墨打印机传感器