Keep holding the keys until you see an Apple logo or spinning globe.Shift-Option-Command-R: When you press and hold these four keys at startup, macOS Recovery might offer the macOS that came with your Mac, or the closest version still available.Option-Command-R: When you press and hold these three keys at startup, macOS Recovery might offer the latest macOS that is compatible with your Mac.Command-R: When you press and hold these two keys at startup, macOS Recovery will offer the current version of the most recently installed macOS.If none of them work, review the guidelines for using startup-key combinations. Immediately after releasing the power button, press and hold one of these key combinations.Press and release the power button to turn on your Mac.This may not be possible.Īt the time of this writing I have not tried just direct to the printer yet with AirPrint.If you're not using a Mac with Apple silicon, you're using an Intel-based Mac. Lpadmin: Unable to connect to “csdcab.on.ca:631”: Operation now in ~ %Ĭsdcab.on.ca is our domain and ss-service is the queue. Lpadmin: Unable to query printer: ~ % lpadmin -P Salle55 -D "Salle 55" -E -v ipp://csdcab.on.ca/ss-service -m everywhere Lpadmin: Unable to query printer: ~ % lpadmin -P Salle55 -D "Salle 55" -E -v ipp:csdcab.on.cass-service -m everywhere Here is what I ~ % lpadmin -P Salle55 -D "Salle 55" -E -v ipp:ss-service -m everywhere Will this work for a print queue in a windows environment? I have not had a chance to review it closely till today. Anybody have recommendations on paintball masks or techniques for removing tomato and rotten fruit stains from clothing? Lpadmin -p SomeAirPrinter -E -v $(ippfind | head -1) -P /System/Library/Frameworks/amework/Versions/A/Frameworks/amework/Versions/A/Resources/AirPrint.ppdĭo not use the above command in production since you can't trust the queue names will always appear in the same order in ippfind.īad news: I'm giving a presentation on printer management in a few weeks, and stuff has changed! I'm not going to have the time to do thorough testing with Catalina. Add the queue with the resulting URL and IPP everywhere driver No arguments needed since they defaults are fine.Ģ. The ippfind command provides a somewhat easier way to get a working local queue, albeit not exactly equivalent to the way AirPrint does it.ġ. Lpadmin -P SomeAirPrinter -E -V dnssd://Some%20Air%20Printer._ipp._tcp.local./?uuid=0123abcd-4567-efab-cd890123efab -m everywhere Append the UDID to the dnssd URL, and use that with lpadmin and the IPP Everywhere driver. Use you preferred text parser to pull out the UDID for the printer.Ĥ. ![]() Use the dns-sd command to retrieve the TXT record from the advertisement for the dnssd URL.ģ. Find the AirPrint printer URL with lpinfo -v. If you're in a situation where you don't have fixed network toopology and must use dnssd, you should really rethink your network management, but the sequence of steps is:ġ. Lpadmin -P SomeAirPrinter -D "Some AirPrint Printer" -E -v ipp:///queuename -P /System/Library/Frameworks/amework/Versions/A/Frameworks/amework/Versions/A/Resources/AirPrint.ppd If you're in a situation where you must specify a path to a PPD file, it hides out in the Application Services framework, and has for several major OS version now, so its not likely to go anywhere. Lpadmin -P SomeAirPrinter -D "Some AirPrint Printer" -E -v ipp:///queuename -m everywhere If you just want to use the AirPrint driver on a printer with a reliable DNS name or IP address, use the model switch in lpadmin instead of a PPD path, and choose the IPP Everywhere driver. Good news: I'm giving a presentation on printer management in a few weeks, so I've got some experience with it, and have been working on writing it up!
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