This printer is a network wireless printer and we had all kinds of communication errors. Sometimes it would print, sometimes it wouldn't, most of the time it would not. I called Lexmark and the tech support guy walked me thru getting it working and it actually worked, while I had him on the phone. As soon as the phone call was over, it basically started acting up again and not printing. So we eliminated the wireless printing and ran a cat5 cable to the back of it, with very similar results. We bought this printer because it has about a 510 page print feature and the cartridges are about $4.99. I'm very much considering taking it back with all of the problems. Can someone recommend a printer that works flawlessly with a 27" iMac, has a low cost printer cartridge and ACTUALLY WORKS and hopefully is wireless. The one we have is a printer, scanner, copier and fax. We don't really need or use the fax feature. HELP!!!!