Oki ML621 ML620, ML621 Users' Guide - English - Page 75
Cleaning the Printer, Printer Exterior
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. When the paper jams are cleared, replace the ribbon cartridge, close the access cover and turn the printer back on. Cleaning the Printer To keep your printer in good operating condition, you are advised to clean it regularly. WARNING! Turn the printer OFF and disconnect the power cable from the printer before cleaning. Printer Exterior CAUTION! Keep the access cover closed to avoid the possibility of detergent entering the printer. You should clean the printer housing every six months (or after about 300 hours of operation). Moisten a piece of cotton cloth with diluted neutral detergent and carefully wipe the printer exterior. CAUTION! Never use strong solvents or strong detergents on the cabinet-they could damage the housing. ML620/ML621 User's Guide 75