VL3622/VL4222/VL5022 1-19Introduction 11.6 Operation precautionsTo ensure the optimum performance of this machine, observe the precautions described below.Power sourceThe power source requirements are as follows.- Voltage fluctuation: Maximum ± 10% (at 220 to 240 V)- Frequency fluctuation: Maximum ± 3 Hz (at 50-60 Hz)– Use a power source with as little voltage or frequency fluctuations as possible.Operating environmentThe environmental requirements for correct operation of the machine are as follows.- Temperature: 10°C to 30°C with fluctuations of no more than 10°C within an hour- Humidity: 10% to 80% with fluctuations of no more than 10% within an hourStorage of copiesTo store copies, follow the recommendation listed below.- Copies that are to be kept for a long time should be kept where they are not exposed to light in orderto prevent them from fading.- Adhesive that contains solvent (e.g., spray glue) may dissolve the toner on copies.
