What is the safe operating temperature and humidity range for the MF1538C?

The guaranteed range for operation is a temperature of 10.0 to 30.0 degrees Celsius and humidity of 20 to 80%. Avoid installing the machine near faucets, water boilers, humidifiers, or refrigerators. The machine should not be installed near a source of fire or in an area subject to dust or ammonium gas. (Page 7)

From the official Canon imageCLASS MF1538C Multifunction Laser Printer manual, page 7

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