随着我国现代化教育的不断发展，高等院校的计算机多媒体教学得到了广泛的应用，作为多媒体教学中的重要设备之一的投影仪，其工作状态将直接影响到计算机多媒体教学的效果，故而做好投影仪的维护与保养工作尤为重要，然而大多数多媒体设备的管理者对多媒体投影仪定时进行维护保养的重要性认识不够，由此引发了许多计算机多媒体教学中的投影仪故障，多媒体投影仪在使用一段时间后必须要进行清尘保养，这样可有效提高投影仪的清晰度，降低投影仪故障率，延长投影仪的使用寿命，因而技术维护人员应掌握投影仪的维护与保养方法，以便更好地服务于学校的计算机多媒体教学。%With the continuous development of China's modern education, institutions of higher learning in the computer multimedia teaching has been widely used, as one of the important equipment in multimedia teaching, working state of the projector will directly affect the effect of computer multimedia teaching, thus make the projector maintenance and the related maintenance work are particularly important. Yet during most multimedia equipment management, the understanding of importance of multimedia projector timing maintenance is not enough, which caused a lot of projector failure in computer multimedia teaching. Multimedia projector in use after a period of time must be for cleaning and maintenance, which can effectively improve the resolution of the projector, reduce projector failure rate, prolong the service life of the projector. So it is required that maintenance personnel should grasp the projector maintenance method, in order to better serve the school computer multimedia teaching.
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