Konica Minolta magicolor 4750EN-4750DN - Manual (Page 159)

Replacing Consumables 7-6
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 turn cartridges upside down; the toner inside the cartridges may
become caked or unequally distributed.
„ Away from salty air and corrosive gases such as aerosols.