iDP3420/3421/3423 User ’s Manual
DAILY MAINTENANCE
•Prior to starting maintenance work, be sure to turn off the main body.
•Use a dry soft cloth to wipe off stains and dust from the surfaces of the main body case. For severe
soiling, dip the cloth in water and wring it, for wiping off the soil. Never use org | anic solvents, such as |
alcohol, thinner, trichlene, benzene, ketone, or chemical dusters. |
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•If the equipment is contaminated with paper powder, use a soft brush to clean it.