Dell 2355 Mono Laser User Manual page 317

Unopened paper in sealed reams can remain stable for several months before use. Opened
packages of paper have more potential for environment damage, especially if they are not
wrapped with a moisture-proof barrier.
The paper storage environment should be properly maintained to ensure optimum
performance. The required condition is 20° C to 24° C (68° F to 75° F), with a relative
humidity of 4 percent to 55percent. The following guidelines should be considered when
evaluating the paper's storage environment:
• Paper should be stored at or near room temperature.
• The air should not be too dry or too humid.
• The best way to store an opened ream of paper is to rewrap it tightly in its moisture-proof
wrapping. If the printer environment is subject to extremes, unwrap only the amount of
paper to be used during the day's operation to prevent unwanted moisture changes.
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