1-6
Handling Paper
Thickness
The paper used with the machine should be neither extremely thick nor
extremely thin. If you are having problems with paper jams, multiple
feeds, and faint printing, the paper you are using may be too thin. If you
are having problems with paper jams and blurred printing the paper may
be too thick. The correct thickness is 0.086 to 0.110 mm (3.4 to 4.3 mils).
Moisture Content
Moisture content is defined as the percent ratio of moisture to the dry
mass of the paper. Moisture can affect the paper’s appearance, feed
ability, curl, electrostatic properties, and toner fusing characteristics.
The moisture content of the 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 jams and alignment anomalies. The
moisture content of the paper should be 4 to 6 %.
To ensure correct moisture content, it is important to store the paper in a
controlled environment. Some tips on moisture control are:
• Store paper in a cool, dry location.
• Keep the paper in its wrapping as long as possible. Re-wrap 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.
• After removing paper from storage, let it stand in the same room as
the machine for 48 hours before use.
• Avoid leaving paper where it is exposed to heat, sunlight, or damp.
Paper Grain
When paper is manufactured, it is cut into sheets with the grain running
parallel to the length (long grain) or parallel to the width (short grain).
Short grain paper can cause feeding problems in the machine. All paper
used in the machine should be long grain.
Other Paper Properties
Porosity
: Indicates the density of paper fiber.
Stiffness
: Limp paper may buckle in the machine, resulting in paper
jams.
Curl
: Most paper naturally tends to curl one way if left unpacked.
Electrostatic discharge
: During the printing process the paper is
electrostatically charged to attract the toner. The paper must be able to
release this charge so that printed sheets do not cling together in the
Output Tray
.
Note
When using coated paper, be aware that the sheets will
stick together in a very humid environment.
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Страница 2: ...Advanced Operation Guide P C3060DN ...
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