HP 5400C HP Scanjet 4400C/5400C Series Scanner Mac - (English) User Manual - Page 111
Cleaning and maintaining, Cleaning the scanner glass
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Back to TOC Cleaning and maintaining Periodically, the scanner and accessories might need to be cleaned or to have maintenance, especially if you are seeing marks or smudges on scanned images. Cleaning the scanner glass You might need to clean the scanner glass if the ink on items you are scanning can be smudged with your hand or items have excessive amounts of dust or dirt on them. You might also need to clean the scanner glass if there are smudges or other marks on scanned images. Troubleshooting and maintaining 111 1 Disconnect the power cable from the scanner. 2 Open the scanner lid. 3 Clean the glass using a soft, lint-free cloth sprayed with a mild glass cleaner. CAUTION Only use glass cleaner. Avoid abrasives, acetone, benzene, and carbon tetrachloride, all of which can damage the scanner glass. Avoid isopropyl alcohol because it can leave streaks on the glass. 4 Dry the scanner glass with a dry, soft, lint-free cloth. 5 When finished, reconnect the power cable to the scanner. Fingerprints or smudges on the underside of the glass do not affect the appearance of scanned images because this area of the glass is outside the focal point of the scanner.