Turn off the microscope lamp, and HOLD the plug while removing it from the outlet. DO NOT PULL ITOUT BY THE CORD. 2. Rotate the nosepiece until the scanning objective (4X) lens is in place over the stage. 3. Using the course adjustment knob, lower the stage to the lowest possible height. 4. NEVER leave your microscope with a slide on its stage. If you were using a prepared slide, wipe off any fingerprints or oil that is on the slide with lens paper before you return it to its storage cabinet. Dispose of your stained slides in the appropriate container for used slides. 5. Wrap the power cord around the microscope as shown by your instructor. 6. Clean the microscope assigned to you. Use lens paper and lens cleaner to clean the mechanical stage, all of the objective lenses, the ocular lenses, and the condenser lens. Make it a habit to clean your oil immersion lens last so that you do not accidentally transfer any oil from the 100X objective to the other objective lenses. A. Fold your lens paper up to make a postage-stamp-size square and dab it against the end of the lens repeatedly. Fold the paper over to expose a fresh portion and repeat the dabbing. B. If there is a significant amount of oil still trapped in the lens or if there is oil in/on any of the other objective lenses, apply a lens cleaning solution to the lens paper and wipe again. Dry the lens with 95% ethanol since this will dry easily. 7. Cover the microscope, and return the microscope to its storage cabinet.