Lexmark X644E Service Manual - Page 204

7002-xxx FRU 3 ADF CCD module glass (models X644e/X646e) 4 Lower exit guide assembly (models X644e/X646e) Action Check for any signs of contamination on the ADF CCD module glass. Use a clean, soft lint-free cloth with isopropyl alcohol (if available) to clean the glass if any contamination is found. Note: The ADF module glass can be accessed by removing the flatbed white cushion from the ADF and lower the exit guide assembly. If the problem persists go to step 4. Check the lower exit guide backside assembly for any signs of damage to the back ADF white cushion or hardware. Models X644e/X646e 5 ADF frontside bracket assembly strip 6 ADF CCD module assembly If the back ADF white cushion cannot be cleaned properly, is damaged, or is missing, replace the lower exit guide assembly. See "Lower exit guide assembly removal" on page 4-47. If no problem is found with the lower exit guide assembly, go to step 5. Check the ADF frontside bracket assembly for any signs of damage to the front flatbed white strip. If damaged, replace the complete ADF assembly. See "ADF complete assembly removal" on page 4-15. If no problem is found, check the front flatbed white strip for any signs of dirt, debris, or contamination. If any problem is found, clean the strip with a clean, soft, lint-free cloth with isopropyl alcohol (if available). If this does not fix the problem, or no problem is found, go to step 6. Replace the ADF CCD module assembly. See "ADF CCD module assembly removal (models X644e/X646e)" on page 4-14. 2-166 Service Manual