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not too dry or humid. Remember that paper is hygroscopic; it absorbs and loses moisture rapidly.
cold causes it to condense on the sheets. Heating systems and air conditioners remove most of the
humidity from a room. As paper is opened and used, it loses moisture, causing streaks and
smudging. Humid weather or water coolers can cause the humidity to increase in a room. As paper
is opened and used it absorbs any excess moisture, causing light print and dropouts. Also, as paper
loses and gains moisture it can become distorted. This can cause paper jams.
Paper stored for long periods may experience heat and moisture extremes, which can cause
damage. Planning is important to prevent damage to large supplies of paper.
of paper have more potential for environment damage, especially if they are not wrapped with a
moisture-proof barrier.
required condition is 20 to 24 °C (68 to 75 °F), with a relative humidity of 45 % to 55 %. 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
to be used during the day’s operation to prevent unwanted moisture changes.