Email:info@discountcopiers.co.uk
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| ANALOGUE PHOTOCOPIER SYSTEM |
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The analogue system is the original type of process used in the photocopier industry, and consisted of a set of mirrors, a focusing lens and a scanning lamp. A document that is placed on the copy board is then scanned by the scanning lamp, the image is reflected by the mirrors through the focusing lens and then reflected again onto a rotating photosensitive drum . The result of the drums exposure to the reflected light is an electrostatic image of the document that is later developed into a printed copy. This system requires that the light be of a consistent and specific value in order to produce a good copy. Monitoring and adjustment is achieved through a basic system called AE (automatic exposure) on most copiers, with some of the high-end machines employing a more sophisticated system called potential control. The main draw back for analogue is keeping the optics (mirrors and lens) clean, as this has a profound effect on copy quality. cleaning and adjustment for the optics is a continual job that needs to be performed at regular intervals by a trained engineer.
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| DIAGRAM OF AN ANALOGUE COPIER SYSTEM |
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