Lexmark M1140 Manual page 27

Supported maximum configurations
Printer Placement
models
T650 Floor
T652, T654, Floor
T656
T650, T652, Floor
T654, T656
1
The optional duplex unit is available only on Lexmark T650n.
T652dn, T654dn, and T656.
3
An optional caster base may be used, but is not required for a safe operation.
Optional Duplex Unit Optional 250-sheet
2,000-
sheet
drawer
1
Yes
1
No
1
Included
2 1
Yes or No
drawers
1 2 3 4
2
An internal duplex unit is a standard feature on the Lexmark
Optional 550-sheet
drawers or 5.1-inch
spacers
1 2 3 4
27
Optional
caster base
39V3588
3
3