Double-Sided Printing Duplex General 200 A -dDuplex=%s cdj970 ev/628 Off None 0 On (Flip on Long Edge) DuplexNoTumble 2 HP DeskJet 842C na HP DeskJet 841C na HP DeskJet 840C na HP DeskJet 845C na On (Flip on Short Edge) DuplexTumble 1 HP DeskJet 842C na HP DeskJet 840C na HP DeskJet 841C na HP DeskJet 845C na