HP LaserJet Pro 400 Service Manual - Page 225
Clean the scanner glass strip and platen
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Clean the scanner glass strip and platen Over time, specks of debris might collect on the scanner glass and white plastic backing, which can affect performance. Use the following procedure to clean the scanner glass and white plastic backing. 1. Use the power switch to turn off the product, and then unplug the power cable from the electrical socket. 2. Open the scanner lid. 3. Clean the scanner glass and the white plastic backing with a soft cloth or sponge that has been moistened with nonabrasive glass cleaner. CAUTION: Do not use abrasives, acetone, benzene, ammonia, ethyl alcohol, or carbon tetrachloride on any part of the product; these can damage the product. Do not place liquids directly on the glass or platen. They might seep and damage the product. 4. Dry the glass and white plastic backing with a chamois or a cellulose sponge to prevent spotting. 5. Connect the product, and then use the power switch to turn on the product. ENWW Clean the product 199
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