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During winter or humid periods when there can be sudden changes in temperature and humidity, the paper in the paper trays can absorb moisture. This may cause image quality to deteriorate.
To prevent this, the machine has two built-in anti-humidity heaters.
There are two switches for the anti-humidity heaters on the internal cover which is revealed when the Tray 1 is pulled out. Turn these switches on if the humidity level becomes high and image quality is affected. Turn the switches off at other times.
The left switch is for the paper tray heater and the right switch is for the transfer unit heater.
