If you need an ADF, look at the Lexmark X5470, and if you must have a network-ready all-in-one, the Lexmark X4550 fits the expense.
It is not network-ready, so if you are in a multiperson workplace, it is not your best option, and it does not have an automated document feeder (ADF), which means set checks, duplicates, and faxes will be laborious.