For automatic duplexing - printing on both sides Quick installation - easily snaps on the back of the printer. Quiet operation and compact design. DeskJet 930C, 932C, 935C, 940C, 950C, 952C, 960C, 990c, 995c OfficeJet G55, G55xi, G85, G85x, P1000, P1100, 1000, 1115, 1215, 1218, 1315 Best Offer