Kyocera C270N Operation Guide - Page 12

Handling Paper U. S. Bond Weight (lb) 34 36 39 42 43 47 53 Europe Metric Weight (g/m²) 128 135 148 157 163 176 199 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 0.110mm (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 1-6 ADVANCED OPERATION GUIDE