If I'm not mistaken, this is the same printer I installed for a client last week. Hers was a Samsung Personal Laser, purchased from Office Depot. THey sold her a cartridge, but when I set it up, lo and behold, there was a cartridge in the printer. I had to shake it to get it to work, and then it took me another minute to realize the printer ejects the paper FACE DOWN, so the 2nd "blank page" it spit out was not actually blank. Cannot comment on the wireless aspect, as my client freaks out when there's wi-fi interference, so we decided it was best to keep it wired.
Inkjet users: if you get this, remember a laser uses heat to transfer powdered toner to paper. IOW, the cartridge is HOT! Just a warning if you need to muck around with the included cartridge that they seem to think is not there. Remember to shake the cartridge if it seems like it's just a "dummy". we printed at least 30 pages while I was there with the cartridge the sales person convinced her was not included