Kyocera FS-1920 Paper Weight Equivalence Table, Thickness Caliper, Moisture Content, Weight g/m²

General Guidelines

Paper Weight Equivalence Table

Paper weight is listed with expression in U.S. bond weight (lb) and

European metric (g/m²). The shaded point indicates the standard weight.

U. S. Bond	16	17	20	21	22	24	27	28	32	34	36	39	42	43	47	53
Weight (lb)
Europe Metric	60	64	75	80	81	90	100	105	120	128	135	148	157	163	176	199
Weight (g/m²)
Table 2-3

Thickness (Caliper)

Thick paper is referred to as high-caliper paper and thin paper as low- caliper paper. The paper used with the printer 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 proper 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, feedability, 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 misfeeding and alignment anomalies. The moisture content of the paper should be 4 to 6%.

To ensure the proper 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. Rewrap 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 printer for 48 hours before use.

•Avoid leaving paper where it is exposed to heat, sunlight, or damp.

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