Sharp BP-70C45 Color Advanced and Essentials BP Series Operating Manual - Page 72

BEFORE USING THE MACHINE►MAINTENANCE CLEANING THE LASER UNIT When the laser unit inside the machine becomes dirty, line patterns (colored lines) may form in the printed image. Identifying lines (colored lines) caused by a dirty laser unit • Colored lines always appear in the same place. (The lines are never black.) • Colored lines appear in parallel with the direction of paper feeding. • Colored lines appear not only on output from a copier but also on prints from a computer. (The same lines appear on both copies and print jobs.) If conditions similar to the above occur, clean the laser unit as explained below. Open the front cover. 1 Open while pressing the convex parts on both sides. Remove the toner collection container. 2 Spread newspaper or something similar in advance where you will place the toner collection container. Press the release buttons on the sides of the toner collection container, push the toner collection container down until the toner collection container stops, and then slowly lift it up to remove it. • Do not touch the internal cords or connectors. • The toner recovery container should be placed in an upright position, not collapsed. Take out the cleaning tool for the laser 3 unit. (2) The cleaning tool is attached to the front cover. (1) (1) Pull the right-hand side of the cleaning tool to detach it from the hook. (2) Put it over the hook to place it on the back side. (3) Turn the cleaning tool around the boss to (3) detach it from the left hand hook. 1-69