HP 3520 HP Deskjet 3500 Series printer - (English) User Guide - Page 48
manually cleaning print cartridges, gathering cleaning supplies, preparing to clean - power supply
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manually cleaning print cartridges If the printer is used in a dusty environment, a small amount of debris may accumulate inside the case. This debris can include dust, hair, carpet, or clothing fibers. When debris gets on the print cartridges and cradle, it can cause ink streaks and smudges on printed pages. Ink streaking is easily corrected by manually cleaning the cartridges and cradle. gathering cleaning supplies You will need the following items to clean the print cartridges and cradle. q Distilled water q Cotton swabs or other soft, lint-free material that will not stick to the cartridges Be careful not to get ink on your hands or clothing as you clean. preparing to clean 1. Press the Power button to turn on the printer, then raise the printer cover. The cradle moves to the center of the printer. 2. Disconnect the power cord from the back of the printer. 3. Remove the print cartridges and place them on a piece of paper with the nozzle plate facing up. Caution! Do not leave the print cartridges outside the printer for more than 30 minutes.