Paper handling
Conditions:
•
Paper size is assumed to be perfect
•
Sheets are assumed to be perfectly 90°
•
Tolerances are referring to deviations within one job
Crease position variation
Crease skew
Fold position variation
Fold skew
Quality definitions
Measurements refer to any crease position.
Feed direction
Crease position variation
Measurement (L1+L2) / 2 from sheet to sheet
Crease skew
Measurement L1 - L2
A4
Letter
± 0.20 mm
± 0.008"
± 0.25 mm
± 0.010"
± 0.25 mm
± 0.010"
± 0.25 mm
± 0.010"
L1
L2
A3
Ledger
± 0.20 mm
± 0.008"
± 0.40mm
± 0.016"
± 0.25 mm
± 0.010"
± 0.25 mm
± 0.010"
95
5