How To Clean Projection System

How to clean projection system and make projector workd well--by http://www.vvme.com <br /><br />When the projector is used for long time,dust will accumulate inside it, leading to projection spot, vague projection and so on. <br /><br />After opening the case, we can use cold air from blower or dust collector to get rid of the dust accumulated inside the projector. <br /><br />The main components that need cleaning: Fresnel lens,condensing lens and camera lens.