If scanned images contain streaks, or if the scanned documents become dirty, the sensor glass or rollers inside the scanner may be dirty. Clean them periodically.

1. Open the document eject tray.
   
    
2. Raise the OPEN lever, and open the upper unit.
   
   
    
3. Used compress air to remove dust and paper particles from the inside of the scanner.
    
4. Wipe any dirt off the scanning glass.
   Wipe any dirt off the scanning glass with a cloth that has been dampened with water and thoroughly wrung out, and then wipe the glass dry with a clean, dry and soft cloth.
   
   
   
   Do not spray water or neutral detergent directly on the scanner. Precision mechanisms, such as the light source, may get wet, and cause a malfunction.
   
   
   Scratches on the sensor glass may cause marks on the images, as well as feeding errors.
    
5. Clean the rollers.
   Clean the rollers while turning them. Wipe the rollers with a cloth that has been dampened with water and thoroughly wrung out, and then use a clean, dry and soft cloth to wipe away any moisture.
   
    
6. Remove the retard and feed roller.
   
   
   Remove the retard roller and feed roller from the scanner to clean them, and be sure to reattach them to the scanner when cleaning is finished.
    
7. Wipe the removed rollers with a cloth that has been dampened with water and thoroughly wrung out.
   
    
8. Reattach the retard roller and feeding roller.
    
9. Close the upper unit by gently pushing it up on the left and right sides. Push until it clicks into place to make sure that it is completely closed.
   
    
10. Close the document feed tray.