Steer clear of the HP c6380
I have an HP C6380 and it supports WiFi wireless and network scanning. The HP Scan Pro application running on the Mac can scan documents remotely.
Unfortunately, I can't really recommend the C6380. I have found that the scanning seems to have many unnecessary mechanical motion type actions. Like, why does it need to initialize the print heads when all I am doing is scanning!!! If you are not quick with the documents, the scanner will "de-initialize" and will have to "re-initialize" before scanning another document. (That includes a full print head initialization.) As a printer, it constantly has paper feed issues ... the paper is not jammed or otherwise hampered, but half way through printing a page, it will stop and complain. The printer includes a separate photo paper tray that ONLY holds 4x6 inch paper. I have had endless trouble convincing the printer that there was actually paper in that tray. It is HP paper, but the printer can't seem to find it 1/2 of the time. I have also had color tone issues with prints from this printer.
I wish HP would provide a firmware update to fix some of these issues, but it seems like they don't care.