DeskJet 870Cxi: Double-Sided Printing?

[Guest]

I Just got a new 'puter (with WinXP-H) and hooked up the DeskJet 870Cxi
printer.
It runs okay (other than needing a new ink cartridge! P=/ ), but it
only uses one side of paper: When I click "Properties", "Features"
says "Double-sided: No". How do I switch to double-sided?--the old
'puter was set up with double-sided okay, so I imagine it is just a
setting hidden somewheres?

~Kaimbridge~

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