Konica Minolta Magicolor 4650DN User Manual page 144

For optimum print quality and performance, use only the corre-
sponded TYPE genuine KONICA MINOLTA toner cartridges.
Keep toner cartridges:
In their packaging until you're ready to install them.
In a cool, dry location away from sunlight (due to heat).
The maximum storage temperature is 35°C (95°F) and the maximum
storage humidity is 85% (noncondensing). If the toner cartridge is moved
from a cold place to a warm, humid place, condensation may occur,
degrading print quality. Allow the toner to adapt to the environment for
about one hour before use.
Level during handling and storage.
Do not hold, stand or store cartridges on their ends or turn them upside
down; the toner inside the cartridges may become caked or unequally
distributed.
Away from salty air and corrosive gases such as aerosols.
130 Replacing Consumables