Appendix
176
A
Print surface
A
The characteristics of the face side and reverse side of a sheet of paper may vary a little.
Usually, the opening side of the paper ream package is the print side. Follow the indications on the paper
package. Typically, the print side is indicated by an arrow.
Moisture content
A
Moisture content is the amount of water left in the paper after manufacture. It is one of the important
characteristics of the paper. This can change greatly depending on the storage environment, although usually
paper contains about 5% water by weight. Because paper often absorbs water, the amount of water can
sometimes be about 10% in a high humidity environment. When the amount of water increases, the
characteristics of the paper changes greatly. The fixing of the toner may become worse. For storage of the
paper and during use, we recommend that the humidity of the surrounding environment be between 50% and
60%.
Rough estimate of basis weight
A
g/m
2
lb
Bond
Index
60
16
64
17
75
20
90
24
105
28
120
32
135
36
161
43
90
200
53
110
