HP 8550mfp Service Manual - Page 32

Storing media Follow these guidelines when stacking and storing media:
Leave media in the wrapper until you are ready to use it.
Rewrap partially used packages of media before storing.
Stack cartons upright and squarely on top of each other.
Store envelopes in a protective box to avoid damaging the envelope edges.
Keep stored media away from temperature and humidity extremes.
Do not store cartons or reams directly on the floor where they will absorb humidity. Instead, place cartons on a pallet or on shelves.
Do not store individual reams in any manner that causes them to curl or warp along the edges.
Do not stack more than six cartons on top of each other.
Do not place anything on top of media (except for stacking cartons of media), regardless of whether the media is packaged or unpackaged. When storing printed documents:
Do not store printed documents in vinyl folders.
Do not expose printed documents to petroleum-based solvents. 30 Chapter 1 - Product information EN