22Cleaning the Unit∫ Outside of the scanner≥ Clean the unit at least once a month.1 Turn the power off.2 Clean the cover with a soft cloth.≥ The document insertion and exit slots getdirty easily. Make sure to clean them.3 Remove dirt and dust from the fanexhaust vent with a brush.∫ Inside the scanner≥ Clean the unit at least once a week or when 20,000 sheets have been scanned, whichever comes first.≥ Clean the rollers, sensors and double feed detectors if paper jamming or double feeding occurs frequently.(Refer to pages 23–26.)≥ Clean the image sensor covers when black or white lines appear on the scanned images. (Refer to page 26.)≥ If the documents you are scanning are dirty, then the scanner parts will become dirty as well.To maintain proper scanning, clean the scanner parts frequently.≥ The image sensor covers may be very hot after scanning a lot of documents continuously.Never touch the image sensor covers or surroundings directly.∫ Roller cleaning paperOpen the bag on the dotted line and take outthe roller cleaning paper.≥ If the bag is left open for a long period of time,the alcohol will evaporate.Please use the roller cleaning paperimmediately after opening the bag.§ The roller cleaning paper (Model No. KV-SS03) is available from the dealer where youpurchased your scanner.For supplies and accessories: Call 1-800-346-4768 (U. S. A. only) or your dealer.± : off positionPower switchDotted line