Ricoh Pro 8120s Manuals - Page 10

1. Characteristics and Conditions of Paper Surface Resistivity Represents the electrical resistance on the paper's surface. It may affect the quality of printing and the movement of paper in the machine. For the values for the surface resistivity of paper, see page 8 "Paper Specifications". Paper Specifications Use the following tables as a guide when you select paper. Uncoated paper Item Ash content (%) *1 Calcium carbonate (CaCO3) ratio (%) Cut edge Cutting tolerance Clark stiffness Bending stiffness Smoothness (s) Static friction coefficient Moisture content (%) Surface resistivity ( ) Specifications 15% or less 15% or less Height of burrs: 0.05 mm (0.002 inches) or less Length: ±0.5 mm (0.02 inches) Angle: 90° ± 0.1° 40 or more Less than 1800 80 or more 0.35 to 0.67 3.7 to 5.5% 5×109 to 1×1012 *1 Measured by combustion at 900°C (1652°F) Coated paper Item Ash content (%) *1 Calcium carbonate (CaCO3) ratio (%) Cut edge Specifications 22% or less 20% or less Height of burrs: 0.05 mm (0.002 inches) or less 8