I recently bought a Lexmark x4650 wireless printer. I followed the install instructions that it came with it then updated the software, but my Mac just doesn't recognize it wirelessly, but it prints fine when connected via USB. My Linux laptop can print over the wifi no problem, so it's not the printer.
I would expect that with the Linux laptop you would have needed to create a TCP/IP network queue rather than relying on some form of network discovery. I suggest that you could use the same technique on the Mac.
When adding the printer, select the IP icon and then select LPD or HP Jetdirect for the protocol. You can then enter IP address of the printer and the respective driver in the Print Using menu.
If this new queue fails to print, open Network Utility and use the Ping function to check that the Mac can get a response from the Lexmark.
Nope, on my Linux machine I just used the new printer menu and it immediately recognized and already had the correct drivers for my printer. Unfortunately, on my Mac I thought it would probably be best to follow Lexmark's instructions for installation. Silly me. Lexmark's software incompletely installed drivers that I can only assume were already available on my Mac, as there are now duplicates of it. I just had to do as you said and add the printer manually, and select the right drivers. Thank you!
You can manually add the Lexmark print queue by going to Print & Fax in the System Preferences. Click on the plus sign ➕ to add the print queue. Add Printer dialog box will appear, choose the Lexmark driver and click Add.
If this don't help, contact Lexmark technical support to further investigate the problem.
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Lexmark x4650 doesn't work over wifi
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