HP LaserJet Enterprise M5039 HP LaserJet M5039xs MFP - User Guide - Page 170
Clean the device, Clean the exterior, Clean the scanner glass
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Clean the device During the printing process, paper, toner, and dust particles can accumulate inside the product. Over time, this buildup can cause print-quality problems, such as toner specks or smearing (see Solve printquality problems on page 201). This product has a cleaning mode that can correct and prevent these types of problems. Clean the exterior Use a soft, damp, lint-free cloth to wipe dust, smudges, and stains off of the exterior of the device. Clean the scanner glass Dirty glass, from fingerprints, smudges, hair, and so on, slows down performance and affects the accuracy of special features such as fit-to-page and copy. NOTE: If streaks or other defects appear only on copies produced using the automatic document feeder (ADF), clean the scanner strip (step 3). It is not necessary to clean the scanner glass. 1. Open the scanner lid. 2. Clean the glass by using a damp, lint-free cloth. CAUTION: Do not use abrasives, acetone, benzene, ammonia, ethyl alcohol, or carbon tetrachloride on any part of the device; these can damage the device. Do not place liquids directly on the glass. They might seep under it and damage the device. 3. Clean the scanner strip by using a damp, lint-free cloth. 156 Chapter 10 Manage and maintain the device ENWW