Installing A Duplex Unit - Lexmark T640 Service Manual

Installing a duplex unit

The duplex unit attaches under the printer, below the standard tray and above any drawers.
Note: Two optional duplex units are available. The 250-sheet duplex unit only works with printers that have a
250-sheet standard tray, and the 500-sheet duplex unit only works with printers that have a 500-sheet standard
tray. Make sure you have the appropriate duplex unit for the tray size installed in the printer.
1.
Place the duplex unit on top of any installed drawers or the table or printer cabinet where you plan to use
the printer.
The tab (A), round peg (B), and square holes (C) on top of any drawer help you position the duplex unit so
the edges are aligned properly. Make sure it is securely in place.
A B C
Appendix A—Options and features
4061-xx0
A-3