HP LaserJet Pro 300 Service Manual - Page 186
Clean the product, Clean the pickup and separation rollers, Clean the paper path - air print
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Clean the product Clean the pickup and separation rollers 1. Turn off the product, unplug the power cord from the product, and then remove the rollers. 2. Dab a lint-free cloth in isopropyl alcohol, and then scrub the roller. WARNING! Alcohol is flammable. Keep the alcohol and cloth away from an open flame. Before you close the product and plug in the power cord, allow the alcohol to dry completely. NOTE: In certain areas of California (USA), air pollution control regulations restrict the use of liquidisopropyl alcohol (IPA) as a cleaning agent. In those areas of California, please disregard theprevious recommendations and use a dry, lint free cloth, moistened with water, to clean thepickup roller. 3. Use a dry, lint free cloth, to wipe the rollers and remove loose dirt. Clean the paper path 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. This product has a cleaning mode that can correct and prevent these problems. 1. At the control panel, press the OK button to open the menus. 2. Open the following menus: ● Service ● Cleaning Page 3. Load plain paper in Tray 1, and then press the OK button to start the cleaning process. Wait until the process is complete. Discard the page that prints. NOTE: For models that do not have an automatic duplexer, the product prints the first side and then prompts you to remove the page from the output bin and reload it in Tray 1, keeping the same orientation. 162 Chapter 2 Solve problems ENWW