Lexmark T640 User Manual page 68

Understanding paper and specialty media guidelines
Media weights supported in the finisher (continued)
Print media Type
Transparencies Laser printer
Integrated forms Pressure sensitive
area
Paper base (grain
long)
Labels — upper Paper
limit
Dual-web paper
Polyester
Vinyl
Envelopes Sulfite, wood-free, or
up to 100% cotton
bond
*
Paper passes to the finisher bin without being stapled or jogged.
Finisher media weight
*
Standard Offset
2
138 to 146 g/m 138 to 146 g/m
(37 to 39 lb bond) 37 to 39 lb bond)
2
140 to 175 g/m Not recommended
(up to 47 lb bond)
2
75 to 135 g/m
(20 to 36 lb bond)
2
180 g/m Not recommended
(48 lb bond)
2
180 g/m
(48 lb bond)
2
220 g/m
(59 lb bond)
2
300 g/m
(92 lb bond)
2
60 to 105 g/m Not recommended
(16 to 28 lb bond)
Supported print media
68
Stapled
2
Not recommended
Not recommended
Not recommended
Not recommended