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Still, when I open the dialog box to add a printer to my Mac, nothing shows up, so I can't select anything from a list but I also cannot manually input the printer because all fields are grayed out. The printer is on the network for sure, because a) the printer itself has a Wi-Fi light that turns green when connected, and b) I can see both wi-fi printers from my PC. I had a second printer that came free with my MacBook but was still in the box, so I opened it up, set it up, and connected it to the netwrok (this one also has wi-fi). Still nothing in the Add Printer dialog box. So I took a USB cable (which I know works because it was connecting something else to my PC, and that was fine), and tried hooking up the printer to my computer directly. Didn't show up on my Add Printer dialog box.
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I had an existing Canon printer, connected to the wireless network with its own wi-fi.
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