Compuprint 4051 - Manual (Page 107)

Options
101
Multi-part Forms
Pressure Sensitive Paper Maximum 2 copies
First Sheet 70 - 80 g/m 2
Copies 40 - 60 g/m 2
Last Sheet 70 - 80 g/m 2
Carbon Paper Maximum 2 copies
First Sheet 70 - 80 g/m 2
Copies 35 - 40 g/m 2
Last Sheet 70 - 80 g/m 2
Carbon Paper 25 g/m 2
The uncovered surface of the carbon paper has to be rough.
Envelopes
Width Minimum 127 mm (5 inches)
Maximum 254 mm (10 inches)
Length Minimum 101 mm (4 inches
Maximum 160 mm (6.5 inches)
Thickness Minimum 0.10 mm (0.004 inch)
Maximum 0.13 mm (0.005 inch)
Max. Thickness Area max. 0.51 mm (0.020 inches)
Printable Area: it is advisable to print into the constant thickness area.