|68 OKIPOS 426S5.7.5.2.2 Paper QualityPaper of the following quality may be used.Type Paper QualitySingle-part paper High quality paperMulti-part paper Pressure-sensitive paper1 Paper smoothness must be 90 ~ 7 sec. for Beek and 75 ~ 300 sec. for Sheffield.2 If you use paper other than that specified here, test it to verify that it prints without problems.5.7.5.2.3 Paper WeightThe weight of paper usable for printing.Type Paper Quality Weight Max. Copies Total PaperThicknessSingle-partpaperFine paper 52~81g/m2 (14~21 lb) - -Multi-part paper Pressure-sensitive paper52~81g/m2 (14~21 lb) 2 copies(Original+1copy)0.18mm or lessNote 1 The standard paper weight is 57g/m2 (15lb) for single-part paper and 57g/m2 (15lb)for the original sheet and 45g/m2 (12lb) for second sheet of multi-parts paper.