Kyocera KM-6030 6030/8030 Operation Guide (Advanced Edition) Rev-3 - Page 192

Smoothness, Basis Weight, Thickness, Moisture Content, Appendix - copier toner

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Appendix Smoothness The paper surface should be smooth, but it must be uncoated. With paper that is too smooth and slippery, several sheets may accidentally be supplied at once, causing jams. Basis Weight In countries that use the metric system, basis weight is the weight in grams of one sheet of paper one square meter in area. In the United States, basis weight is the weight in pounds of one ream (500 sheets) of paper cut to the standard size (or trade size) for a specific grade of paper. Paper that is too heavy or too light may be supplied incorrectly or cause paper jams, which may cause excessive wear to the copier. Mixed paper weight (i.e., thickness) may cause several sheets to be supplied at once accidentally and may also cause blurring or other copying problems if the toner fails to adhere correctly. The recommended basis weight is between 60 and 160 g/m² (16 and 42 lb/ream) for the cassettes and between 45 and 200 g/m² (12 and 53 lb/ream) for the MP tray. Thickness Avoid using paper that is too thick or thin. Signs that paper may be too thin include frequent problems with paper jams or with several sheets being supplied at once. Paper jams may also indicate that the paper is too thick. The proper thickness is between 0.086 and 0.110 mm. Moisture Content Paper moisture content is the ratio of moisture to dryness expressed as a percentage. Moisture affects how the paper is supplied, the electrostatic chargeability of the paper, and how the toner adheres. Paper moisture content varies depending on the relative humidity in the room. High relative humidity causes paper to become damp, making the edges expand so it appears wavy. Low relative humidity causes paper to lose moisture, making the edges tighten and weakening copy contrast. Wavy or tight edges may cause the paper to slip when it is supplied. Try to keep the moisture content between 4 to 6 %. To maintain the right level of moisture content, bear in mind the following considerations. • Store paper in a cool, well-ventilated place. • Store paper flat and unopened in the package. Once the package is opened, reseal it if the paper is not to be used for a while. • Store paper sealed in the original package and box. Put a pallet under the carton to keep it raised above the floor. Especially during rainy seasons keep the paper a sufficient distance away from wooden or concrete floors. • Before using paper that has been stored, keep it at the proper moisture level for at least 48 hours. • Do not store paper where it is exposed to heat, sunlight, or dampness. Appendix-4

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Appendix
Appendix-4
Smoothness
The paper surface should be smooth, but it must be uncoated. With paper that is too smooth and
slippery, several sheets may accidentally be supplied at once, causing jams.
Basis Weight
In countries that use the metric system, basis weight is the weight in grams of one sheet of paper
one square meter in area. In the United States, basis weight is the weight in pounds of one ream
(500 sheets) of paper cut to the standard size (or trade size) for a specific grade of paper. Paper that
is too heavy or too light may be supplied incorrectly or cause paper jams, which may cause
excessive wear to the copier. Mixed paper weight (i.e., thickness) may cause several sheets to be
supplied at once accidentally and may also cause blurring or other copying problems if the toner
fails to adhere correctly.
The recommended basis weight is between 60 and 160 g/m² (16 and 42 lb/ream) for the cassettes
and between 45 and 200 g/m² (12 and 53 lb/ream) for the MP tray.
Thickness
Avoid using paper that is too thick or thin. Signs that paper may be too thin include frequent
problems with paper jams or with several sheets being supplied at once. Paper jams may also
indicate that the paper is too thick. The proper thickness is between 0.086 and 0.110 mm.
Moisture Content
Paper moisture content is the ratio of moisture to dryness expressed as a percentage. Moisture
affects how the paper is supplied, the electrostatic chargeability of the paper, and how the toner
adheres.
Paper moisture content varies depending on the relative humidity in the room. High relative humidity
causes paper to become damp, making the edges expand so it appears wavy. Low relative humidity
causes paper to lose moisture, making the edges tighten and weakening copy contrast.
Wavy or tight edges may cause the paper to slip when it is supplied. Try to keep the moisture
content between 4 to 6 %.
To maintain the right level of moisture content, bear in mind the following considerations.
•
Store paper in a cool, well-ventilated place.
•
Store paper flat and unopened in the package. Once the package is opened, reseal it if the
paper is not to be used for a while.
•
Store paper sealed in the original package and box. Put a pallet under the carton to keep it
raised above the floor. Especially during rainy seasons keep the paper a sufficient distance
away from wooden or concrete floors.
•
Before using paper that has been stored, keep it at the proper moisture level for at least 48
hours.
•
Do not store paper where it is exposed to heat, sunlight, or dampness.