HP 2820 - Manual (Page 219)

Storing supplies
Follow these guidelines for storing print cartridges and the imaging drum:
● Do not remove the print cartridge or imaging drum from its package until you are ready
to use it.
CAUTION To prevent damage, do not expose the print cartridge or imaging drum to light for more than
a few minutes.
● See Environmental specifications for operating and storage temperature ranges.
● Store the supply in a horizontal position.
● Store the supply in a dark, dry location away from heat and magnetic sources.
ENWW Storing supplies 203