User`s guide

Paper Specifications B-5
OG L
Moisture
Moisture affects both paper curl and print quality. Excessive moisture can cause the
following things:
■ Wavy edges
■ Tight edges
■ Paper curl
■ Faded printing
An increase in humidity can cause paper to develop wavy edges. This occurs because
the edges absorb moisture while the rest of the ream remains unaffected. This can cause
paper skewing and inability to pick paper. Wave is measured as shown below. Do not
use paper with a wave of more than 2 mm.
Figure B-2. Moisture (1)
If there is a decrease in humidity the edges can lose moisture. This causes them to
contract resulting in tight edges. Tight edges are measured as shown below. Do not use
paper with tight edges of more than 2 mm.
Figure B-3. Moisture (2)
Less than 2 mm
Less than 2 mm
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