Canon Laser Shot LBP-1120 User Manual page 145

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Do not open the drum's protective shutter on the cartridge.
4
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Do not touch the drum's protective shutter. Avoid holding the cartridge in such a way that
your hand is touching the drum's protective shutter.
•
Do not leave or place the cartridge where it is exposed to direct sunlight.
•
Keep the toner cartridge away from your computer screen, disk drives, and floppy
disks—the magnets in the toner cartridge can erase valuable data.
•
Never attempt to disassemble a toner cartridge.
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Condensation may form on a toner cartridge if it is subjected to extreme changes in
temperature and/or humidity, adversely affecting print quality. If you move the cartridge to
a location that is warmer or has higher humidity, let it sit out of the box for about an hour.
This allows it to slowly adjust to the new temperature, preventing condensation from
forming.
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Before you install the cartridge, check the expiration date printed on the box. Old toner
cartridges can cause poor print quality. Always use a cartridge before its expiration date.
•
Never store the toner cartridge in salty air or where there are corrosive gases (e.g. from
aerosol sprays).
4-12 Replacing the Toner Cartridge