Moisture Content - Kyocera FS-7028M Instructions Manual

Thickness
The paper used with the printer should be neither extremely thick nor extremely
thin. If you are having problems with multiple feeds and paper jams, the paper may
be too thin. The paper may also be too thick if you are having problems with paper
jams. The proper thickness is 0.086 to 0.110 mm (3.4 to 4.3 mils).

Moisture Content

Moisture content is defined as the percentage ratio of moisture to the dry mass of
the paper. Moisture can affect the paper's appearance, feedability, curl, electrostatic
properties, and toner fusing characteristics.
The moisture content of paper varies with the relative humidity in the room. When
the relative humidity is high and the paper absorbs moisture, the paper edges
expand, becoming wavy in appearance. When the relative humidity is low and the
paper loses moisture, the edges shrink and tighten, and print contrast may suffer.
Wavy or tight edges can cause misfeeding and alignment anomalies. The moisture
content of the paper should be 4% to 6%.
To ensure the proper moisture content, it is important to store the paper in a
controlled environment. Some tips on moisture control are:
• Store paper in a dry, well-ventilated location.
• Keep the paper flat and in its wrapping as long as possible. Rewrap paper that is
not in use.
• Store paper in its original carton. Place a pallet etc. under the carton to separate
it from the floor. Keep paper away from boarded or concrete floors during rainy
weather.
• Avoid leaving paper where it is exposed to heat, sunlight, or damp.
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