Troubleshooting Mac “printing – printer is in use” error

I haven't seen this a lot, but it's common enough that you can find it in a Google search. Here are some of the top results: HP 7520 - Printer in Use - won't print from MAC I have a new iMac running OS X 10.8.3. I am adding a Windows network printer by IP… Continue reading Troubleshooting Mac “printing – printer is in use” error