Canon ImageCLASS MF4270, Basic Operation Manual

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1-11
Before Using the Machine
Maintaining the Toner Cartridge
Keep the toner cartridge away from computer screens, disk drives, and floppy disks. The
magnet inside the toner cartridge may harm these items.
Avoid locations subject to high temperature, high humidity, or rapid changes in
temperature.
Do not expose the toner cartridge to direct sunlight or bright light for more than five
minutes.
Store the toner cartridge in its protective bag. Do not open the bag until you are ready to
install the toner cartridge in the machine.
Save the toner cartridge’s protective bag in case you need to repack and transport the
toner cartridge at a later date.
Do not store the toner cartridge in a salty atmosphere or where there are corrosive gases
such as from aerosol sprays.
Do not remove the toner cartridge from the machine unnecessarily.
Do not open the drum protective shutter on the toner cartridge. Print quality may
deteriorate if the drum surface is exposed to light or is damaged.
Always hold the toner cartridge by its handle to avoid touching the drum protective
shutter.
Do not stand the toner cartridge on end, and do not turn it upside down. If toner
becomes caked in the toner cartridge, it may become impossible to free it even by
shaking the toner cartridge.
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