1.15.3. MAINTENANCE1.15.3.1. CLEANING THE DOCUMENT FEEDER UNITIf misfeeding occurs frequently or if dirty patterns or bands appear on a transmitted document or on the original of a copieddocument, clean the document feeder.1. Disconnect the power cord and the telephone line cord.2. Open the front cover by pulling up the center part.3. Clean the document feed rollers and rubber flap with a clothmoistened with isopropyl rubbing alcohol, and let all parts drythoroughly.4. Clean the glass with a soft dry cloth.5. Close the front cover securely.6. Connect the power cord and the telephone line cord.Caution:· Do not use paper products, such as paper towelsor tissues, to clean the inside of the unit.1.15.3.2. CLEANING THE THERMAL HEAD AND BLACK BARIf dirty patterns or black or white bands appear on a copied or received document, clean the thermal head.1. Disconnect the power cord and the telephone line cord.2. Open the front cover by pulling up the center part.3. Open the back cover by pushing the back cover open button.4. Clean the thermal head with a cloth moistened with isopropylrubbing alcohol, and let it dry thoroughly.5. Close the back cover securely by pushing down on the dottedarea at both ends. Close the front cover securely.6. Connect the power cord and the telephone line cord.Caution:· To prevent a malfunction due to static electricity,do not use a dry cloth and do not touch the thermalhead directly with your fingers.1.15.3.3. CLEANING THE PICKUP ROLLERRefer to 4.10. HOW TO REMOVE THE PICKUP ROLLER.(P.117)24KX-FP81BX / KX-FP81CX / KX-FP82CX