Acer S2W 3300U Service Manual - Page 51

(2) Remove the bracket motor three screws in Fig.7-12. Figure7-12 7.6. About Resolution The resolution is the most important performance of the scanner, and it is under the influence of many factors. Taking the attention to these factors and you can get the maximum resolution and performance. These factors are described in the following: (1) Lamp When the lamp is out of order the intensity of light will reduce and the CCD can't receive enough light to output voltage signal.