ADF scanning lamp Note The scanning lamp and the shading filter are a matched set and must be replaced together. 1 Remove the ADF optical unit. See page 125. 2 Carefully release two clips on the side of the ADF optical unit filter and slide the filter off (callout 1). 1 Figure 104. ADF scanning lamp (1 of 5) 3 Remove two flat-head screws (callout 2). Note Do not touch the glass or the white calibration strip. 4 Grasp the ends of the guide (callout 3), lift it up to disengage the lock tabs, and remove the guide. 3 3 2 2 Figure 105. ADF scanning lamp (2 of 5) 130 Chapter 6 Removal and replacement C8523-90921