In addition to cleaning the glass strips with a non-flammable glass cleaner, run your fingertip over the glass to see if you can feel anything on it. If you feel dirt or debris, clean the glass again concentrating on that area. You may need to repeat the cleaning process three or four times. To test, scan a document after each cleaning attempt. | | | | | | When there is a spot of dirt or correction fluid on the glass strip the scanned sample shows a vertical line. | | After the glass strip is cleaned the vertical line is gone. | |
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