Ricoh Pro 8120s Manuals - Page 9

Characteristics of Paper 1. 2 mm (0.08 inches) or less Warped paper If the humidity is low in the place where paper is stored, paper that is exposed to air may lose moisture and the edges may shrink. Paper with wavy edges feeds at an angle and may cause paper jams. Use paper that has a difference of 6 mm (0.24 inches) or less between the stack's central area and the edge when the maximum number of sheets of paper is loaded in the paper. 1 CEL002 1. 6 mm (0.24 inches) or less For the values for moisture content of paper, see page 8 "Paper Specifications". Clark Stiffness Represents the flexibility of paper. If the Clark stiffness is low, paper is easy to bend. It is also susceptible to moisture content and heat, so paper with a low Clark stiffness may shrink at its edges or curl during printing. In addition, soft paper is likely to twine around the paper rollers or belts, which may cause paper jams. For the values for the Clark stiffness of paper, see page 8 "Paper Specifications". Bending Stiffness Represents the flexibility of paper. Hard paper has a high bending stiffness. If paper has a high bending stiffness, it is difficult to bend through the paper rollers and the pathways inside the machine and may cause paper jams. For the values for the bending stiffness of paper, see page 8 "Paper Specifications". 7