If you are looking for an All-In-One type machine I would suggest staying
away from them. If the copier function of your printer/copier/scanner/fax
machine goes out, that effectively renders the machine useless while it is
being repaired at the shop. We use a Canon PC981 copier and an old (very
old) HP LaserJet Series II printer. Both work perfectly. The Canon is fast
and easy to use and the HP is built like a battleship. If I were looking
for a new printer and copier I would consider machines from HP, Epson and
Canon.
I agree. Stay away from multi-function machines in general and
especially if fast reliable printing is critical. Get the best
printer you can justify. Plan on sharing it on a network. If the
printer you like has a network interface option I suggest you get it.
After you have your printing set up look at your scanning, copying and
faxing requirements; FAXs can be sent directly from Windows and
received via services like efax.com so if that meets your requirements
you don't need to buy any gadgets.
If you need to fax the occasional paper document you can keep an old
landline fax machine around on a phone line or use teh software that
comes with any cheap flatbet scanner.
USB scanners (I like the Canon LIDE-30 for under $50) come with
SCAN-to-file and SCAN-to-laser printer (BW or color) software that
meet my needs just fine.
If you need high speed scanning with batch input autofeeders get one
that best fits your needs. You can always program it to print to a
network printer via software.